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299 citation(s) found for "Lai, W-C".

Decreased Expression of Sulfatase 2 in the Brains of Alzheimer’s Disease Patients: Implications for Regulation of Neuronal Cell Signaling
Roberts, Rosebud O., Kang, Yoo Na , Moser, Catherine D., Wang, Shaoqing , Moore, Michael J. , Lai, Jinping , Petersen, Ronald C. , Roberts, Lewis R. , Chen, Chen , Lai, Jin-Ping, Chen, C , Roberts, Lewis R , Hu, Chunling , Moore, Michael J. B. , Graham, Rondell P.

Journal of Alzheimer's Disease Reports | December 20, 2017 | Volume: 1 | Issue: 1 | Pages: 115-124

10.3233/adr-170028 | PMID 30035253 Get It

Background: The human sulfatase 1 (SULF1) and sulfatase 2 (SULF2) genes modulate cell signaling and homeostasis in many tissues. Gene expression analyses have implicated SULF2 in disease pathogenesis, including Alzheimer’s disease (AD), but changes in brain SULF2 expression have not been directly established. Objective: To investigate the expression of SULF1 and SULF2 in brain tissues from AD cases and cognitively normal controls. Methods: Autopsy tissue from AD cases ( n = 20) and age-and gender-matched cognitively normal controls ( n = 20) were identified from the Mayo Clinic Alzheimer’s Disease Patient Registry neuropathology database. Tissue slides were stained for SULF1 and SULF2 protein expression in the hippocampus and frontal lobe and an expression score computed from the proportion of cells stained and the intensity of staining (range 0 [no expression] to 9 [marked expression]). Results: SULF2 expression was reduced in AD cases. Compared to cognitively normal controls, SULF2 expression in AD cases was significantly decreased in the hippocampal Cornu Ammonis (CA) (mean score of 6.5 in cases versus 8.3 in controls; p = 0.003), in the gray matter of the parahippocampal gyrus (5.6 in cases versus 7.6 in controls; p = 0.003), and in the frontal lobe gray matter (5.4 in cases versus 7.4 in controls; p = 0.002). There was no difference in SULF1 expression in the hippocampus or frontal lobe of AD cases and controls. As expected there were no differences in SULF1 or SULF2 expression in white matter in AD cases compared to cognitively normal controls. Conclusion: Decreased SULF2 in specific regions of the brain occurs in AD.
Gender-Specific Differences in Serum Immunoglobulin E Levels and Prevalence of Fungus in Sinonasal Tissue Noted in Patients with Chronic Rhinosinusitis who Underwent Endoscopic Sinus Surgery
Azar, Antoine , Rank, Matthew A. , Zarka, Matthew A., Lai, Devyani, Chang, Yu‐Hui

American Journal of Rhinology & Allergy | November 9, 2017 | Volume: 31 | Issue: 6 | Pages: 370-375

10.2500/ajra.2017.31.4471 | PMID 29122081 Get It

Background We previously presented that women with chronic rhinosinusitis (CRS) who elected endoscopic sinus surgery (ESS) have a higher symptom burden than men. Causes of these gender-based differences warranted further study. Objectives To study gender differences in another cohort of adult patients with CRS who underwent ESS and to compare key histopathologic and serologic features Methods Patients with CRS who underwent ESS (from 2011 to 2014) with structured histopathology reports on surgical samples were studied. The 13-item structured histopathology report detailed key metrics of inflammation and the presence of fungal elements. Clinical, 22-item Sino-Nasal Outcome Test (SNOT-22) score, Lund-Mackay computed tomography (CT) score, serologic (immunoglobulin E [IgE] level, absolute eosinophil count) and histopathologic data were compared between male and female patients by using statistical software. Results We studied 130 eligible subjects (mean age, 54.7 years; 49.2% women). Compared with the men, the women had significantly higher preoperative SNOT-22 scores (women, 48.7; men 38.0 [p = 0.004]) but similar CT scores. Serum IgE levels were significantly higher among women versus men (peak, 433.3 versus 190.8 kU/L [p = 0.03]; closest to surgery, 435.0 versus 190.8 kU/L [p = 0.03]). Tissue fungal elements were significantly more prevalent in women versus men (19.0 versus 5.2%; p = 0.02). Up to this point, the analysis was agnostic of clinical details of the subjects. Further analysis was conducted regarding clinical features. Allergic fungal sinusitis (AFS) was found significantly more commonly in the female versus male patients (21.9 versus 9.1%; p = 0.04). Women versus men had a higher prevalence of migraine (19.4 versus 4.6%; p = 0.01) or any primary headache disorders (23.0 versus 6.2%; p = 0.007). Conclusion Women who underwent ESS for CRS had higher SNOT-22 symptom burden. Worsened symptomatology may be secondary to a higher prevalence of primary headache disorders in women. However, surgeons should also be aware that female patients with CRS who seek ESS may have a higher prevalence of severe disease endotypes (more tissue fungal elements, elevated serum IgE levels) and phenotypes.
Historical epidemiology of hepatitis C virus in select countries—volume 4
Vince, Adriana , Himatt, Sayed , Mohamed, Rosmawati , Opare‐Sem, Ohene , Workneh, A., Njouom, Richard , Ghazzawi, Imad, Abdulla, Maheeba , Kaliaskarova, Kulpash , Owusu‐Ofori, Shirley , Abdelmageed, Marwa , Adda, Danjuma, Baqali, A. Al, Dweik, N. Al, Ejji, Khalid Al, Kaabi, S. Al, Naamani, Khalid Al , Qamish, Jehad Al, Sadadi, M. Al, Salman, Jameela Al , AlBadri, M., Al‐Busafi, Said A. , Al‐Romaihi, Hamad Eid , Ampofo, William , Antonov, Krasimir , Anyaike, Chukwuma , Arome, F., Bane, Abate, Borodo, M. M., Brandon, S., Bright, Bisi , Butt, M. T., Cardenas, I., Chan, Henry Lik‐Yuen , Chen, C. J., Chen, Ding‐Shinn , Chen, Pei‐Jer , Cuellar, Diego , Derbala, M., Elbardiny, A. A., Estes, Chris , Farag, E., Gamkrelidze, Ivane , Garcìa, V. , Genov, J, Ghandour, Z., Ghuloom, M., Gómez, B. , Gunter, J., Habeeb, J., Hajelssedig, O. , Hamoudi, Waseem , Hrstić, Irena , Hu, Ching‐Chih , Huang, Chung‐Feng , Hui, Yee Tak , Jahis, Rohani, Jelev, Deian, John, Anil K , Kamel, Yasser , Kao, Jia‐Horng , Khamis, Jawad, Khattabi, H., Khoudri, Ibtissam , Конысбекова, А А , Kotzev, Iskren, Lai, Moon Sing, Lao, Wenyu, Layden, Jennifer E. , Lee, M. H., Lesi, Olufunmilayo , Li, M., Loo, Ching‐kong, Lukšić, Boris, Malu, Abraham O., Mateva, Lyudmila, Mitova, R, Morović, Miro, Murphy, K., Mustapha, B., Nde, H. , Nersesov, Alexander , Ngige, Evelyn, Njoya, Oudou, Nonković, Diana , Obekpa, Solomon, Oguche, Stephen , Okolo, Eucharia, Omede, O. , Omuemu, C., Phillips, Richard Odame , Prokopenko, Yuriy , Razavi, Homie , Razavi‐Shearer, Devin , Redae, Berhane, Reić, Tatjana, Wit, Tobias Rinke de, Ríos, Cielo , Robbins, S., Roberts, Lewis R. , Sanad, S. J., Schmelzer, Jonathan, Sharma, Manik , Simonova, Marieta, Su, Tung‐Hung , Sultan, K., Tan, S. S. , Tchernev, К., Tsang, O. T. Y., Tsang, S., Tzeuton, Christian, Ugoeze, S., Vi, R., Wani, Hamid, Yacoub, R., Yesmembetov, Kakharman, Youbi, M., Razavi‐Shearer, Kathryn , Wong, Grace Lai‐Hung , Roberts, Lewis R , Fung, James , Akın, Onur , Blach, Sarah , Chien, Rong‐Nan , Chuang, Wan‐Long , Lee, M.-H., Lo, Acy , Ondoa, Pascale , Wit, Tobias F. Rinke de , Robbins, S., Uzochukwu, Benjamin S C. , Wong, Vincent Wai‐Sun , Yuen, Man‐Fung , Lai-Hung Wong, Grace

Journal of Viral Hepatitis | November 4, 2017 | Volume: 24 | Issue: S2 | Pages: 8-24

10.1111/jvh.12762 | PMID 29105285 Get It

SummaryDue to the introduction of newer, more efficacious treatment options, there is a pressing need for policy makers and public health officials to develop or adapt national hepatitis C virus (HCV) control strategies to the changing epidemiological landscape. To do so, detailed, country‐specific data are needed to characterize the burden of chronic HCV infection. In this study of 17 countries, a literature review of published and unpublished data on HCV prevalence, viraemia, genotype, age and gender distribution, liver transplants and diagnosis and treatment rates was conducted, and inputs were validated by expert consensus in each country. Viraemic prevalence in this study ranged from 0.2% in Hong Kong to 2.4% in Taiwan, while the largest viraemic populations were in Nigeria (2 597 000 cases) and Taiwan (569 000 cases). Diagnosis, treatment and liver transplant rates varied widely across the countries included in this analysis, as did the availability of reliable data. Addressing data gaps will be critical for the development of future strategies to manage and minimize the disease burden of hepatitis C.
The present and future disease burden of hepatitis C virus infections with today's treatment paradigm: Volume 4
Chan, Henry Lik‐Yuen , Chen, C. J., Omede, O. , Qamish, Jehad Al, Naamani, Khalid Al , Bane, Abate, Tan, S. S. , Simonova, Marieta, Cardenas, I., Derbala, Moutaz , Phillips, Richard Odame , Abdelmageed, Marwa , Abdulla, Maheeba , Adda, Danjuma, Baqali, A. Al, Dweik, N. Al, Ejji, Khalid Al, Ghazzawi, Imad, Kaabi, S. Al, Sadadi, M. Al, Salman, Jameela Al , AlBadri, M., Al‐Busafi, Said A. , Al‐Romaihi, Hamad Eid , Ampofo, William , Antonov, Krasimir , Anyaike, Chukwuma , Arome, F., Blach, Sarah , Borodo, M. M., Brandon, S., Bright, Bisi , Butt, M. T., Chen, Ding‐Shinn , Chen, Pei‐Jer , Cuellar, Diego , Elbardiny, A. A., Farag, Elmoubasher , Gamkrelidze, Ivane , Garcìa, V. , Genov, J, Ghandour, Z., Ghuloom, M., Gómez, B. , Gunter, J., Habeeb, J., Hajelssedig, O. , Hamoudi, Waseem , Himatt, Sayed , Hrstić, Irena , Hu, Ching‐Chih , Huang, Chung‐Feng , Hui, Yee Tak , Jahis, Rohani, Jelev, Deian, John, Anil K , Kaliaskarova, Kulpash , Kamel, Yasser , Kao, Jia‐Horng , Khamis, Jawad, Khattabi, H., Khoudri, Ibtissam , Конысбекова, А А , Kotzev, Iskren, Lai, Moon Sing, Lao, Wenyu, Layden, Jennifer E. , Lee, M. H., Lesi, Olufunmilayo , Li, M., Loo, Ching Kong, Lukšić, Boris, Maaroufi, Abderrahmane , Malu, Abraham O., Mateva, Lyudmila, Mitova, R, Mohamed, Rosmawati , Morović, Miro, Murphy, K., Mustapha, B., Nersesov, Alexander , Ngige, Evelyn, Njouom, Richard , Njoya, Oudou, Nonković, Diana , Obekpa, Solomon, Oguche, Stephen , Okolo, Eucharia, Omuemu, C., Opare‐Sem, Ohene , Owusu‐Ofori, Shirley , Prokopenko, Yuriy , Razavi, Homie , Razavi‐Shearer, Devin , Razavi‐Shearer, Kathryn , Redae, Berhane, Reić, Tatjana, Wit, Tobias Rinke de, Ríos, Cielo , Robbins, S., Roberts, Lewis R. , Sanad, S. J., Schmelzer, Jonathan, Sharma, Manik , Su, Tung‐Hung , Sultan, K., Tchernev, К., Tsang, O. T. Y., Tsang, Simon H. Y., Tzeuton, Christian, Ugoeze, S., Vi, R., Vince, Adriana , Wani, Hamid, Workneh, A., Yacoub, R., Yesmembetov, Kakharman, Youbi, M., Nde, H. , Wong, Grace Lai‐Hung , Blach, S , Roberts, Lewis R , Akın, Onur , Chien, Rong‐Nan , Chuang, Wan‐Long , Estes, Chris , Fung, James , Lee, M.-H., Lo, Acy , Ondoa, Pascale , Wit, Tobias F. Rinke de , Robbins, S., Uzochukwu, Benjamin S C. , Wong, Vincent Wai‐Sun , Yuen, Man‐Fung , Lai-Hung Wong, Grace

Journal of Viral Hepatitis | November 4, 2017 | Volume: 24 | Issue: S2 | Pages: 25-43

10.1111/jvh.12760 | PMID 29105283 Get It

SummaryFactors influencing the morbidity and mortality associated with viremic hepatitis C virus (HCV) infection change over time and place, making it difficult to compare reported estimates. Models were developed for 17 countries (Bahrain, Bulgaria, Cameroon, Colombia, Croatia, Dominican Republic, Ethiopia, Ghana, Hong Kong, Jordan, Kazakhstan, Malaysia, Morocco, Nigeria, Qatar and Taiwan) to quantify and characterize the viremic population as well as forecast the changes in the infected population and the corresponding disease burden from 2015 to 2030. Model inputs were agreed upon through expert consensus, and a standardized methodology was followed to allow for comparison across countries. The viremic prevalence is expected to remain constant or decline in all but four countries (Ethiopia, Ghana, Jordan and Oman); however, HCV‐related morbidity and mortality will increase in all countries except Qatar and Taiwan. In Qatar, the high‐treatment rate will contribute to a reduction in total cases and HCV‐related morbidity by 2030. In the remaining countries, however, the current treatment paradigm will be insufficient to achieve large reductions in HCV‐related morbidity and mortality.
Strategies to manage hepatitis C virus infection disease burden—Volume 4
Chen, Ding‐Shinn , Hamoudi, Waseem , Mustapha, B., Layden, Jennifer E. , Nersesov, Alexander , Reić, Tatjana, Garcìa, V. , Ríos, Cielo , Mateva, Lyudmila, Njoya, Oudou, Al‐Busafi, Said A. , Abdelmageed, Marwa , Abdulla, Maheeba , Adda, Danjuma, Baqali, A. Al, Dweik, N. Al, Ejji, Khalid Al, Ghazzawi, Imad, Kaabi, S. Al, Naamani, Khalid Al , Qamish, Jehad Al, Sadadi, M. Al, Salman, Jameela Al , AlBadri, M., Al‐Romaihi, Hamad Eid , Ampofo, William , Antonov, Krasimir , Anyaike, Chukwuma , Arome, F., Bane, Abate, Blach, Sarah , Borodo, M. M., Brandon, S., Bright, Bisi , Butt, M. T., Cardenas, I., Chan, Henry Lik‐Yuen , Chen, C. J., Chen, Pei‐Jer , Cuellar, Diego , Derbala, M., Elbardiny, A. A., Farag, E., Gamkrelidze, Ivane , Genov, J, Ghandour, Z., Ghuloom, M., Gómez, B. , Gunter, J., Habeeb, J., Hajelssedig, O. , Himatt, Sayed , Hrstić, Irena , Hu, Ching‐Chih , Huang, Chung‐Feng , Hui, Yee‐Tak, Jahis, Rohani, Jelev, Deian, John, Anil K , Kaliaskarova, Kulpash , Kamel, Yasser , Kao, Jia‐Horng , Khamis, Jawad, Khattabi, H., Khoudri, Ibtissam , Конысбекова, А А , Kotzev, Iskren, Lai, Moon Sing, Lao, Wenyu, Lee, M. H., Lesi, Olufunmilayo , Li, M., Loo, Ching‐kong, Lukšić, Boris, Maaroufi, Abderrahmane , Malu, Abraham O., Mitova, R, Mohamed, Rosmawati , Morović, Miro, Murphy, K., Nde, H. , Ngige, Evelyn, Njouom, Richard , Nonković, Diana , Obekpa, Solomon, Oguche, Stephen , Okolo, Eucharia, Omede, O. , Omuemu, C., Opare‐Sem, Ohene , Owusu‐Ofori, Shirley , Phillips, Richard Odame , Prokopenko, Yuriy , Razavi, Homie , Razavi‐Shearer, Devin , Razavi‐Shearer, Kathryn , Redae, Berhane, Wit, Tobias Rinke de, Robbins, S., Roberts, Lewis R. , Sanad, S. J., Sharma, Manik , Simonova, Marieta, Su, Tung‐Hung , Sultan, K., Tan, S. S. , Tchernev, К., Tsang, O. T. Y., Tsang, Simon H. Y., Tzeuton, Christian, Ugoeze, S., Vi, R., Vince, Adriana , Wani, Hamid, Workneh, A., Yacoub, R., Yesmembetov, Kakharman, Youbi, M., Schmelzer, Jonathan, Hui, Yee Tak , Wong, Grace Lai‐Hung , Blach, S , Roberts, Lewis R , Akın, Onur , Chien, Rong‐Nan , Chuang, Wan‐Long , Estes, Chris , Fung, James , Lee, M.-H., Lo, Acy , Ondoa, Pascale , Wit, Tobias F. Rinke de , Robbins, S., Uzochukwu, Benjamin S C. , Wong, Vincent Wai‐Sun , Yuen, Man‐Fung , Lai-Hung Wong, Grace

Journal of Viral Hepatitis | November 4, 2017 | Volume: 24 | Issue: S2 | Pages: 44-63

10.1111/jvh.12759 | PMID 29105286 Get It

SummaryThe hepatitis C virus (HCV) epidemic was forecasted through 2030 for 17 countries in Africa, Asia, Europe, Latin America and the Middle East, and interventions for achieving the Global Health Sector Strategy on viral hepatitis targets—“WHO Targets” (65% reduction in HCV‐related deaths, 90% reduction in new infections and 90% of infections diagnosed by 2030) were considered. Scaling up treatment and diagnosis rates over time would be required to achieve these targets in all but one country, even with the introduction of high SVR therapies. The scenarios developed to achieve the WHO Targets in all countries studied assumed the implementation of national policies to prevent new infections and to diagnose current infections through screening.
Abstract CT088: A phase I trial combining MEK-1/2 inhibition in combination with 5-fluorouracil and radiation for locally-advanced rectal adenocarcinoma
Chan, Emily , Roychowdhury, Sameek , Timmers, Cynthia , Wuthrick, Evan , Williams, Terence M. , Wu, Christina , Wei, Lai , Robb, Ryan N. , Webb, Amy , Bekaii‐Saab, Tanios

Cancer Research | July 31, 2017 | Volume: 77 | Issue: 13_Supplement | Pages: CT088-CT088

10.1158/1538-7445.am2017-ct088 Get It

Abstract Introduction: 5-fluorouracil (5-FU)-based chemoradiation (CRT) is a standard neoadjuvant treatment strategy for the treatment of locally-advanced rectal adenocarcinomas (LARC). MEK-1/2 inhibition has been shown to radiosensitize Ras mutant tumors in preclinical models, including colorectal cancer. In this phase 1 trial, we are testing MEK-1/2 inhibition in combination with neoadjuvant CRT for LARC. Methods: This trial is a standard 3+3 design testing 3 dose levels of the MEK-1/2 inhibitor trametinib in combination with CRT: 0.5 mg, 1.0 mg, and 2.0 mg daily, followed by an expansion cohort. All patients first receive a one week lead-in dosing of trametinib monotherapy, and undergo a tumor biopsy at the end of that week to assess pharmacodynamic inhibition by immunohistochemistry (IHC). Then, patients receive standard CRT (5-FU 225 mg/m2 per day by continuous infusion during radiotherapy, and 50.4 Gy in 28 fractions, 5 days/ week) in combination with trametinib (5 days/week). Patients have total mesorectal excision (TME) 6-10 weeks after completion of CRT. Results: 17 patients have been enrolled to date, with current enrollment occurring on the trametinib 2 mg expansion cohort (total 18 patients planned). Of these, 15 patients (10 males, 5 females) have toxicity and surgical response data available. Median age is 53 years (range 35-74 years), and 6 patients have Stage II disease, while 9 patients with Stage III disease. There have been no grade 4-5 toxicities. One dose-limiting toxicity (DLT) of diarrhea occurred in the 2mg dose cohort, attributed mainly to 5FU CRT, but led to trametinib discontinuation. Generalized skin rash led to trametinib discontinuation after 2 weeks of therapy for 1 patient and was held for 3 days for 2 patients. All patients completed TME, and 3 patients had wound infection at 2 weeks after TME, while 2 patients had perineal wound infection at 4 weeks after TME. Three out of 9 (33%) patients at the 2mg dose cohort had a pathologic complete response (pCR), and 2/9 (22%) patients had a near pCR. Adjuvant chemotherapy was given to 10 patients, 4 patients did not receive (3 refused), and 1 patient is pending. Correlative research studies have been performed in the first 12 patients enrolled. Examination of phospho-ERK levels using Vectra quantitative immunohistochemistry in pre-treatment versus post-lead-in trametinib tumor tissue reveals dose-dependent decreases in p-ERK expression in both tumor and stromal tissue as trametinib is increased from 0.5 to 2.0 mg (range 18-46% absolute reduction), with maximal reduction observed in the 2 mg cohort. Additionally, we have performed whole exome sequencing of a custom panel of 279 cancer associated genes (IGNITE platform) in tumor and normal tissue, and have identified high frequency mutations in KRAS, BRAF, and TP53, as well as additional lower frequency mutations in every tumor. One patient was noted to have microsatellite instability. Finally, we will present data correlating degree of change in p-ERK staining, mutational analysis, and mismatch repair status with pathologic response. Conclusions: The combination of trametinib with 5-FU-based CRT for LARC is feasible with promising signs of clinical activity and tolerability. Initial analysis of tumor tissue confirms dose-dependent pharmacodynamic inhibition of ERK-1/2 within 5 days of starting trametinib. Citation Format: Terence M. Williams, Christina Wu, Lai Wei, Emily Chan, Ryan Robb, Sameek Roychowdhury, Amy Webb, Cynthia Timmers, Tanios Bekaii-Saab, Evan Wuthrick. A phase I trial combining MEK-1/2 inhibition in combination with 5-fluorouracil and radiation for locally-advanced rectal adenocarcinoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr CT088. doi:10.1158/1538-7445.AM2017-CT088
Abstract 1315: Estimating sex-specific effects of genetic loci associated with glioma risk
Kinnersley, Ben , Wrensch, Margaret , Eckel‐Passow, Jeanette E. , Armstrong, Georgina , Rice, Terri, Wiencke, John, McCoy, Lucie , Hansen, Helen M. , Bernstein, Jonine L. , Claus, Elizabeth B. , Johansen, Christoffer , Lai, Rose , Lau, Ching C. , Merrell, Ryan , Sadetzki, Siegal, Schildkraut, Joellen, Shete, Sanjay , Houlston, Richard S. , Jenkins, Robert B. , Melin, Beatrice , Ostrom, Quinn T. , Armstrong, Georgina , Chen, Yanwen , Wiencke, John K. , Amos, Christopher I. , Il’yasova, Dora , Lachance, Daniel Honore , Olson, Sara H. , Bondy, Melissa L. , Barnholtz‐Sloan, Jill S. , Houlston, Richard S

Cancer Research | July 31, 2017 | Volume: 77 | Issue: 13_Supplement | Pages: 1315-1315

10.1158/1538-7445.am2017-1315 Get It

Abstract BACKGROUND: Incidence of glioma varies significantly by sex, and most glioma histologies occur with greater incidence in males. Previous analyses have examined the impact of estrogen exposure as a risk factor for these tumors, but have found results of varying significance and low effect size. There may be differences in effect of previously discovered risk alleles that contribute to sex differences. METHODS: Using data collected for three previous glioma GWAS in European-ancestry populations (MD Anderson Cancer Center, the San Francisco Adult Glioma Study, and the Glioma International Case Control Study) we assessed sex-specific effects for 14 previously identified and 13 newly identified glioma risk SNPs (27 total) overall and for glioblastoma (GBM) and non-GBM tumors separately. There were 3,892 male cases (59% GBM), 4,522 male controls, 2,500 female cases (52% GBM) and 4,940 female controls. Sex-specific odds ratios (ORM and ORF), 95% confidence intervals (95% CI) and p values (pM and pF) were generated using stratified logistic regression models. Data from each study were analyzed separately and combined using inverse variance weighted meta-analysis. Results were considered statistically significant at p<6.2x10-4. RESULTS: In GBM, rs11979158 (7p11.2, pM=1.01x10-10, ORM=1.43 [95% CI: 1.28-1.59]; pF=3.43x10-3, ORF=1.22 [95% CI: 1.07-1.39]) and rs2562152 (16p13.3, pM=5.59x10-4, ORM=1.23 [95% CI: 1.09-1.39]; pF=1.22x10-1, ORF=1.12 [95% CI: 0.97-1.29]) had significant effect in males only. In non-GBM gliomas, rs12076373 (1q44, pM=3.56x10-7, ORM=1.41, 95% CI: 1.23-1.61; pF=1.76x10-2, ORF=1.20, 95% CI: 1.03-1.38), rs11979158 (7p11.2, pM=1.77x10-5, ORM=1.32 [95% CI: 1.16-1.49]; pF=2.73x10-1, ORF=1.08 [95% CI: 0.94-1.24]), and rs3751667 (16p13.3, pM=9.44x10-7, ORM=1.30 [95% CI: 1.17-1.44]; pF=5.18x10-2, ORF=1.13 [95% CI: 1.00-1.28]) had significant effect in males only. Effect size for rs55705857 (8q24.21) varied significantly by sex, with ORM=2.63 (95% CI: 2.24-3.09, pM=4.42x10-32), as compared to ORF=3.95 (95% CI: 3.28-4.76, pF=1.82x10-47). A sensitivity analysis was performed due to allele frequency heterogeneity by study and results did not change. CONCLUSIONS: Sex differences and other demographic differences in cancer susceptibility can provide important clues to etiology, and these differences can be leveraged for discovery in genetic association studies. Significant differences in effect size may suggest variation in genetic effect of risk alleles or in unidentified risk factors that vary in prevalence or effect by sex. There may also be differences in the distribution of molecular subtypes within each histology by sex. Further investigation using an agnostic approach may further elucidate the relationship between effect of risk alleles and sex. Citation Format: Quinn T. Ostrom, Ben Kinnersley, Margaret Wrensch, Jeanette E. Eckel-Passow, Georgina Armstrong, Terri Rice, Yanwen Chen, John Wiencke, Lucie McCoy, Helen Hansen, Christopher Amos, Jonine L. Bernstein, Elizabeth B. Claus, Dora Il'yasova, Christoffer Johansen, Daniel Lachance, Rose Lai, Ching C. Lau, Ryan T. Merrell, Sara H. Olson, Siegal Sadetzki, Joellen Schildkraut, Sanjay Shete, Richard S. Houlston, Robert B. Jenkins, Beatrice Melin, Melissa Bondy, Jill S. Barnholtz-Sloan. Estimating sex-specific effects of genetic loci associated with glioma risk [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 1315. doi:10.1158/1538-7445.AM2017-1315
Abstract 1295: Genomewide gene-diabetes and gene-obesity interaction scan in 7095 cases and 10710 controls from Pancreatic Cancer Cohort Consortium and Pancreatic Cancer Case Control Consortium
Tang, Hongwei, Jiang, Lai , Stolzenberg-Solomon, Rachael S., Wolpin, Brian M. , Petersen, Gloria M. , Chatterjee, Nilanjan , Li, Donghui , Ámundadóttir, Laufey T. , Risch, Harvey A. , Klein, Alison P. , Kraft, Peter , Wei, Peng

Cancer Research | July 31, 2017 | Volume: 77 | Issue: 13_Supplement | Pages: 1295-1295

10.1158/1538-7445.am2017-1295 Get It

Abstract Introduction: Obesity and diabetes are two major modifiable risk factors for pancreatic cancer. Genetic variation affecting the risk of obesity- and diabetes-related pancreatic cancer have yet to be comprehensively investigated at the genome-wide level. Aims: To identify novel gene-environment interactions (GxE) of obesity/diabetes on pancreatic cancer risk. Methods: We conducted a multi-stage genome-wide gene-diabetes and gene-obesity interaction study using GWAS data of 7095 cases and 10710 controls from Pancreatic Cancer Consortium (PanScan I, PanScan II and PanScan III) and Pancreatic Cancer Case Control Consortium (PanC4). About 870,000 SNPs, having MAF ≥ 0.005 and having been genotyped in at least one study, were analyzed. Missing genotypes were imputed using IMPUTE2 and the Haplotype Reference Consortium (HRC) reference panel. Case-control (CC) and case-only (CO) methods were used for SNP-level GxE analysis. Fixed-, random- and joint-effect models built in “rareGE” R package were used for gene-based GxE analysis. About 20,000 genes that have at least one SNP genotyped were included in the analysis. Age, gender and principal components accounting for subpopulation structure were adjusted in both SNP-level and gene-level analyses. Obesity was defined as body mass index ≥30 mg/m2. Diabetics with <3-year duration were excluded for gene-diabetes interaction analysis. The PanScan I, II, III and PanC4 datasets were analyzed separately followed by meta-analysis of the summary statistics. Fixed-effect and Fisher’s p-value based meta-analysis was applied for SNP-level and gene-level GxE analysis, respectively. Results: No genome-wide significant (P<5 x 10-8 ) interaction at the SNP level was detected in any of the PanScan or PanC4 datasets or in the meta-analysis. A significant interaction of diabetes and FAM63A (family with sequence similarity 63 member A) gene (P<2.5 x 10-6) was observed in the meta-analysis (PFixed= 3.4 x 10-5, PRandom= 1.9 x 10-6, PJoint= 6.8 x 10-7) . This interaction showed nominal significance in all individual dataset analyses. The corresponding P values for this interaction were 4.2 x 10-2, 3.8 x 10-2 and 6.8 x 10-2 in PanScan I, 2.8 x 10-2, 3.9 x 10-2 and 6.5 x 10-2 9.1 x 10-3, 2.2 x 10-4 and 8.8 x 10-6 in PanScan III, and 3.1 x 10-3, 3.4 x 10-3 and 8.8 x 10-3 in PanC4, respectively. Conclusions: In the largest genome-wide GxE analysis for pancreatic cancer to date, we identified a significant diabetes interacting gene in pancreatic cancer, which was consistently replicated in 4 individual GWAS studies. This observation identifies FAM63A as a candidate for future functional studies to understand its role in pancreatic cancer etiology. Further increasing the sample size may unveil additional genetic loci that contribute to the susceptibility to pancreatic cancer via G x E. Citation Format: Hongwei Tang, Lai Jiang, Laufey T. Amundadottir, Harvey A. Risch, Rachael S. Stolzenberg-Solomon, Alison P. Klein, Brian M. Wolpin, Gloria Petersen, Nilanjan Chatterjee, Donghui Li, Peter Kraft, Peng Wei. Genomewide gene-diabetes and gene-obesity interaction scan in 7095 cases and 10710 controls from Pancreatic Cancer Cohort Consortium and Pancreatic Cancer Case Control Consortium [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 1295. doi:10.1158/1538-7445.AM2017-1295
Abstract 1033: Estrogen receptor gene fusions drive endocrine therapy resistance in estrogen receptor positive breast cancer
Shao, Jieya , Iglesia, Michael D. , Chan, Doug W. , Matsunuma, Ryoichi , He, Xiaping , Singh, Purba , Kosaka, Yoshimasa , Crowder, Robert J., Haricharan, Svasti , Kavuri, Shyam M. , Phommaly, Chanpheng, Gonçalves, Rodrigo , Romalho, Susana, Lai, W. Victoria , Rogers, Anna , Tobias, Ethan, Parikh, P.J., Cynthia, X. , Thompson, Aubrey, Creighton, Chad J. , Lei, Jonathan T. , Zhang, Jin , Hoog, Jeremy , Hampton, Oliver , Davies, Sherri R. , Suman, Vera J. , Hunt, Kelly K. , Watson, Mark A. , Hoadley, Katherine A. , Perou, Charles M. , Maher, Christopher G. , Ellis, Matthew J.

Cancer Research | July 31, 2017 | Volume: 77 | Issue: 13_Supplement | Pages: 1033-1033

10.1158/1538-7445.am2017-1033 Get It

Abstract Dysregulation of estrogen receptor gene (ESR1) is an established mechanism of inducing endocrine therapy resistance. We previously discovered a chromosomal translocation event generating an estrogen receptor gene fused in-frame to C-terminal sequences of YAP1 (ESR1-YAP1) that contributed to endocrine therapy resistance in estrogen receptor positive (ER+) breast cancer models. This current study compares functional and pharmacological properties of additional ESR1 gene fusion events of both early stage (ESR1-NOP2) and advanced endocrine therapy resistant (ESR1-YAP1 and ESR1-PCDH11x) breast cancers. The YAP1 and PCDH11x fusions conferred estrogen-independent and fulvestrant-resistant growth in T47D, an ER+ breast cancer cell line in vitro and in vivo, in contrast to the NOP2 fusion which was sensitive to hormone deprivation. Immunohistochemical (IHC) staining of mouse lungs revealed significantly higher numbers of micrometastatic ER+ cells from the T47D tumors expressing the YAP1 and PCDH11x fusions than YFP control and NOP2 fusion. Estrogen response element (ERE) reporter and pull down assays revealed that although all ESR1 fusions studied bound EREs, only the YAP1 and PCDH11x caused ERE activation. Cell lines containing these “canonical” ESR1 fusions upregulated expression of ER responsive genes such as TFF1 and GREB1 in hormone deprived conditions. In contrast, the NOP2 fusion neither induced ERE activity nor upregulated TFF1 and GREB1 gene expression. The proliferative ability of canonical fusion-containing T47D cells was inhibited by palbociclib, a CDK4/6 inhibitor, in a dose-dependent manner. In vivo growth of patient-derived xenograft tumors naturally harboring the ESR1-YAP1 fusion (WHIM18) was significantly reduced in mice fed palbociclib-containing chow. Mice transplanted with WHIM18 also formed lung micrometastases, with an ER IHC staining pattern similar to lungs from YAP1 and PCDH11x fusion expressing T47D xenografts. In conclusion, in-frame ERE activating canonical fusions occur in end-stage, drug resistant, advanced breast cancer and can be added to ESR1 point mutations as a class of somatic mutation that may cause acquired resistance. Endocrine therapy resistant growth induced by these fusions can be treated with CDK4/6 inhibition, using an FDA approved drug, palbociclib, which could potentially improve outcomes in patients with ESR1 translocated tumors. Citation Format: Jonathan T. Lei, Jieya Shao, Jin Zhang, Michael Iglesia, Doug W. Chan, Ryoichi Matsunuma, Xiaping He, Purba Singh, Yoshimasa Kosaka, Robert Crowder, Svasti Haricharan, Shyam Kavuri, Jeremy Hoog, Chanpheng Phommaly, Rodrigo Goncalves, Susana Romalho, Wei-Chu Lai, Oliver Hampton, Anna Rogers, Ethan Tobias, Poojan Parikh, Sherri Davies, Cynthia Ma, Vera Suman, Kelly Hunt, Mark Watson, Katherine A. Hoadley, Aubrey Thompson, Charles Perou, Chad J. Creighton, Chris Maher, Matthew J. Ellis. Estrogen receptor gene fusions drive endocrine therapy resistance in estrogen receptor positive breast cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 1033. doi:10.1158/1538-7445.AM2017-1033
Abstract 1302: Genome-wide association study of glioma reveals specific differences in genetic susceptibility to glioblastoma and non-glioblastoma
Kinnersley, Ben , Melin, Beatrice , Wrensch, Margaret , Johansen, Christoffer , Ostrom, Quinn T. , GICC, and members of, Labrèche, Karim , Eckel‐Passow, Jeanette E. , Decker, Paul A. , Labussière, Marianne, Delattre, Jean‐Yves, Gousias, Konstantinos , Schramm, Johannes, Schoemaker, Minouk J. , Nöthen, Marcus M., Wichmann, Heinz‐Erich, Lathrop, Mark, Simon, Matthias , Chanock, Stephen, Linet, Martha S. , Lai, Rose , Claus, Elizabeth B. , Jenkins, Robert B. , Houlston, Richard S. , Barnholtz‐Sloan, Jill S. , Il’yasova, Dora , GICC, and members of, Decker, Paul A. , Idbaïh, Ahmed , Hoang‐Xuan, Khê , Stefano, Anna Luisa Di , Mokhtari, Karima , Galán, Pilar , Fleming, Sarah , Herms, Stefan , Heilmann‐Heimbach, Stefanie , Schreiber, Stefan , Swerdlow, Anthony J. , Sanson, Marc , Rajaraman, Preetha , Wang, Zhaoming , Yeager, Meredith , Olson, Sara H. , Bondy, Melissa L. , Houlston, Richard S , Schoemaker, Minouk J , Ostrom, Quinn T

Cancer Research | July 31, 2017 | Volume: 77 | Issue: 13_Supplement | Pages: 1302-1302

10.1158/1538-7445.am2017-1302 Get It

Abstract BACKGROUND: Glioma accounts for ~27% of all primary brain tumors and is responsible for ~13,000 cancer-related deaths in the US each year. Glioma tumors can be broadly classified into glioblastoma (GBM) and lower-grade non-GBM. Typically gliomas have a poor prognosis irrespective of medical care, with the most common form, GBM, having a five-year survival rate of only 5%. While genome-wide association studies (GWAS) have transformed our understanding of glioma susceptibility, individual studies have had limited power to identify risk loci. METHODS: We performed the largest glioma GWAS to date, comprising a meta-analysis of six existing GWAS (6,405 cases, 14,100 controls) as well as new GWAS from the Glioma International Case Control Consortium (GICC; 4,572 cases and 3,286 controls) and University of California, San Francisco (UCSF)-Mayo (1,519 cases, 804 controls), totaling 12,496 cases (6,191 classified as GBM, 5,819 as non-GBM) and 18,190 controls. RESULTS: We identified five new risk loci for GBM at 1p31.3 (rs12752552; near JAK1, P=2.04×10-9, odds ratio (OR)=1.22), 11q14.1 (rs11233250; P=9.95×10-10, OR=1.24), 16p13.3 (rs2562152; near MPG, P=1.93x10-8, OR=1.21), 16q12.1 (rs10852606; HEATR3, P=1.29×10-11, OR=1.18), 22q13.1 (rs2235573; P=1.76×10-10, OR=1.15) and eight for non-GBM at 1q32.1 (rs4252707; MDM4, P=3.34×10-9, OR=1.19), 1q44 (rs12076373; AKT3, P=2.63×10-10, OR=1.23), 2q33.3 (rs7572263; near IDH1, P=2.18×10-10, OR=1.20), 3p14.1 (rs11706832; LRIG1, P=7.66×10-9, OR=1.15), 10q24.33 (rs11598018; OBFC1, P=3.39×10-8, OR=1.14), 11q21 (rs7107785; P=3.87×10-10, OR=1.16), 14q12 (rs10131032; P=5.07x10-11, OR=1.33) and 16p13.3 (rs3751667; P=2.61×10-9, OR=1.18). Case-only analyses confirmed the specificity of 11q14.1, 16p13.3 and 22q13.1 associations for GBM and 1q44, 2q33.3, 3p14.1, 11q21 and 14q12 for non-GBM tumors. In the combined meta-analysis, among previously published glioma risk SNPs, those for all glioma at 17p13.1 (TP53), GBM at 5p15.33 (TERT), 7p11.2 (EGFR), 9p21.3 (CDKN2B-AS1) and 20q13.33 (RTEL1) and for non-GBM at 8q24.21 (CCDC26), 11q23.2, 11q23.3 (PHLDB1) and 15q24.2 (ETFA) showed even greater evidence for association. SNPs at 10q25.2 and 12q12.1 for non-GBM tumors retained genome-wide significance (i.e. P<5.0x10-8). Associations at the previously reported loci for GBM at 3q26.2 (near TERC) and 12q23.33 (POLR3B) did not retain statistical significance. CONCLUSIONS: Our findings substantiate genetic susceptibility to GBM and non-GBM glioma being highly distinct, consistent with their distinctive molecular profiles presumably resulting from different etiological pathways. Functional analyses should lead to further insights into the biological basis of the different glioma histologies. Such information can inform gene discovery initiatives and therefore have a measurable impact on the successful development of new therapeutic agents. Citation Format: Ben Kinnersley, Beatrice S. Melin, Jill S. Barnholtz-Sloan, Margaret R. Wrensch, Christoffer Johansen, Dora Il’yasova, Quinn Ostrom, and members of GICC, Karim Labreche, Jeanette E. Eckel-Passow, Paul A. Decker, Marianne Labussière, Ahmed Idbaih, Khe Hoang-Xuan, Anna-Luisa Di Stefano, Karima Mokhtari, Jean-Yves Delattre, Pilar Galan, Konstantinos Gousias, Johannes Schramm, Minouk J. Schoemaker, Sarah J. Fleming, Stefan Herms, Stefanie Heilmann, Marcus M. Nöthen, Heinz-Erich Wichmann, Stefan Schreiber, Anthony Swerdlow, Mark Lathrop, Matthias Simon, Marc Sanson, Preetha Rajaraman, Stephen Chanock, Martha Linet, Zhaoming Wang, Meredith Yeager, Rose K. Lai, Elizabeth B. Claus, Sara H. Olson, Robert B. Jenkins, Richard S. Houlston, Melissa L. Bondy. Genome-wide association study of glioma reveals specific differences in genetic susceptibility to glioblastoma and non-glioblastoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 1302. doi:10.1158/1538-7445.AM2017-1302