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212 citation(s) found for "McLaughlin, SA".

Trial in Progress: PROSERA, a Phase 3 Study of the Efficacy and Safety of Seralutinib in Adults with Pulmonary Arterial Hypertension (PAH)
Held, Matthias , Benza, R.L., Channick, Richard, Chin, K. , Frantz, R, Howard, L, McLaughlin, Vallerie V. , Zamanian, R.T., Bruey, Jean‐Marie, Cravets, Matt , Mottola, David, Zisman, Lawrence S. , Parsley, Ed, Roscigno, Robert F., Aranda, R., Vachiéry, J, Sitbon, Olivier , Frantz, Robert P. , Ghofrani, Hossein Ardeschir , Hemnes, Anna R. , McLaughlin, Vallerie V.

Mayo Clinic

Pneumologie | March 18, 2025 | Volume: 79 | Issue: No issue available | Pages: No page available

10.1055/s-0045-1804609 Get It

673: IMPACT OF EARLY INTERVENTION ON 6-MONTH SURVIVAL IN INTRACEREBRAL HEMORRHAGE
McLaughlin, Diane , Ferreira, Daniel , Ferreira, Daniel

Mayo Clinic

Critical Care Medicine | January 31, 2025 | Volume: 53 | Issue: 1 | Pages: No page available

10.1097/01.ccm.0001101356.62182.51 Get It

1059: A NOVEL VISUAL-GUIDED TECHNIQUE WITH TRANSILLUMINATION FOR PERCUTANEOUS TRACHEAL PLACEMENT
Chmayssani, Mohamad, Schaller, Michael P., Ferreira, Daniel, McLaughlin, Diane

Mayo Clinic

Critical Care Medicine | January 31, 2025 | Volume: 53 | Issue: 1 | Pages: No page available

10.1097/01.ccm.0001102900.42883.b5 Get It

Survival and Therapeutic Outcomes in T-Cell Prolymphocytic Leukemia (T-PLL): A Collaborative Multi-Center Study Cohort
McLaughlin, Eric , Lingamaneni, Prasanth , Cao, Miao , Chang, Tiffany , Ganesan, Nivetha, Luu, Binh, Mehta-Shah, Neha, Allen, Pamela B. , Paulino, Darina, Adams, Brittany , Wang, Jie , Feng, Amber , Marchi, Enrica , Gutierrez, Marc , Frosch, Zachary AK , Sklarz, Tammarah , Sethi, Tarsheen , Beaven, Anne , Haverkos, Bradley , Treitman, Rachel, Stevens, Patrick , Mishra, Anjali , Hampel, Paul J. , Brammer, Jonathan E. , Braunstein, Zachary , Barta, Stefan K , Luu, Binh, Mehta–Shah, Neha , Shree, Tanaya , Watkins, Marcus P. , Zain, Jasmine , Roberts, Nathan, Wilcox, Ryan A. , Foss, Francine M. , Stuver, Robert

Mayo Clinic

Blood | December 5, 2024 | Volume: 144 | Issue: Supplement 1 | Pages: 982-982

10.1182/blood-2024-194242 Get It

Introduction: T-PLL is a rare, aggressive malignancy with poor prognosis and limited therapies. Outside of prospective trials utilizing alemtuzumab, data is derived primarily from small retrospective series, and limited data on survival outcomes and therapeutic efficacy, particularly beyond frontline therapy are available. In this large multi-center series, with comprehensive clinical data, we evaluated survival and therapeutic outcomes in T-PLL patients, with a focus on identification of prognostic subgroups of T-PLL, that will inform future investigations into the biology and treatment of this disease. Methods: We retrospectively evaluated all patients diagnosed with T-PLL at 15 academic cancer centers throughout the USA between 2000-2023 using the recent TPLL-ISG staging and response criteria with overall response rate (ORR) defined as CR and PR. Overall survival (OS) and progression-free survival (PFS) were assessed using Kaplan-Meier methods and cox proportional hazard models. Single-cell RNA sequencing (scRNAseq) was performed using the standard 10X Genomics platform. Results: 377 patients, with a median follow-up time of 29 months (range: 0-196) were evaluated. The median age at diagnosis was 64 and 51% were male. In evaluated patients (n=223), TCL1A was positive by cytogenetics or FISH in 82%. 61% of patients had CD4+CD8- T-PLL, 11% of patients had CD4-CD8+ T-PLL, and 24% of patients had CD4+CD8+ T-PLL, with 4% unknown. 175 patients (46.4%) had known nodal involvement at diagnosis identified by PET or CT scan. Among treated patients (n=342, 91%), using TPLL-ISG criteria, the ORR to any frontline treatment was 67% (49% CR, 18% PR). Median OS and PFS was 19 months and 10 months in responding patients from the start of treatment initiation. For those treated with frontline alemtuzumab (n=250), the ORR was 74% (58% CR), with a median OS and PFS of 18 and 12 months. 20 patients (5%) were treated with a combination of alemtuzumab/pentostatin frontline with an ORR of 85% (70% CR), which was superior to alemtuzumab alone (ORR 74%, 58% CR). Patients that had frontline chemotherapy (excluding pentostatin, n=48) had a worse ORR of 35% (15% CR) (p<0.001), and a worse PFS of 4 months (p=0.002), when compared to those who received alemtuzumab. Among patients in 1st CR/PR (n=226), 44% (n=99) received an allograft and had an improved 3-year OS of 50% vs 17%, (HR=0.67, 95%CI 0.48-0.93), and 50% improvement in PFS (HR 0.48, 0.33-0.68) compared to those who did not receive an allograft. For patients that received second line treatment (n=176, 52%), re-treatment with alemtuzumab (n=33) produced a 46% ORR (21% CR). Other active second-line treatments included: pentostatin (n=23; 44% ORR, 17% CR), ruxolitinib-based regimens (n=4; 25% ORR, 0% CR), venetoclax-based regimens (n=13; 39% ORR, 8% CR), bendamustine (n=10; 30% ORR, 0% CR), and nelarabine (n=4; 75% ORR, 50% CR). In subgroup survival analysis, TCL1A+ patients had a worse OS and PFS when compared to TCL1A- patients (23 months vs 43 months; p=0.02), and (14 months vs 24 months; p=0.02) respectively, with HR 1.58 (1.08, 2.31) (p=0.02) for OS and HR 1.62 (1.09-2.40) (p=0.02) for PFS. Furthermore, CD4- T-PLL had worse OS (16 months vs 25 months) when compared to CD4+ patients [HR 1.57 (1.08, 2.27), p=0.02]. Single cell RNA seq in 13 patients, including 3 TCL1A- patients, with a total of 66,269 T-PLL cells, demonstrated a unique RNA signature between the CD4+/- and TCL1A+/- patients, suggesting these represent unique molecular subtypes of T-PLL. Conclusions: In this large, multi-center study of T-PLL, frontline treatment with a combination of alemtuzumab/pentostatin improved response rates and OS. Further, among patients who attained a CR, allograft improved OS & PFS vs no allograft. In relapsed T-PLL, retreatment with alemtuzumab had a high ORR, and we report significant activity of multiple novel/alternative agents with the largest reported numbers to date. Intriguingly, TCL1A+, and CD4- T- PLL had worse OS/PFS, and scRNAseq confirmed unique molecular signatures in these populations, suggesting these represent novel molecular subtypes of T-PLL with prognostic significance. These studies form the foundation for future, targeted, therapeutic studies in this rare, aggressive disease with few treatment options.
Longevity biotechnology: bridging AI, biomarkers, geroscience and clinical applications for healthy longevity
Lyu, Yu-Xuan, Wilczok, Dominika , Antebi, Adam , Vojta, Aleksandar , Stolzing, Alexandra , Moskalev, Alexey , Georgievskaya, Anastasia , Maier, Andrea B. , Olsen, Andrea, Groth, Anja , Brunet, Anne , Jamil, Aisyah, Kulaga, Anton , Bhatti, A.R., Yaden, Benjamin C., Djordjevic, Boris, Chen, Chieh, Huang, Christine Yuan, Chen, Danica , Sołdacki, Dariusz, Meyer, David H. , Chini, Eduardo N. , Morgen, Eric , Vernet, Erik , Pinilla, Estefano, Mercken, Evi M. , Finger, Fabian , Kuipers, Folkert , Gyülvészi, Gábor, Zmudze, Garri, Blander, Gil , Pincus, Harold A., McClure, Joshua, Kirkland, James L. , Peyer, James , McLaughlin, Jerry L., Mannick, Joan B. , Betts-LaCroix, Joe , Sedivy, John M. , Speakman, John R. , Shlain, Jordan, Maltzahn, Julia von , Andreasson, Katrin I. , Moody, Kelsey , Fortney, Kristen , Niedernhofer, Laura J., Veenhoff, Liesbeth M. , Melton, Lisa , Quarta, Marco , Koval, Maria, Marinova, Maria B., Hamalainen, Mark, Unfried, Maximilian , Ringel, Michael S. , Filipović, Miloš R. , Topors, Mourad, Mitin, Natalia , Roy, N. N., Pintar, Nika, Barzilai, Nir , Binetti, Paolo, Kohlhaas, Paul, Rubin, Paul , Kamya, Petrina, Muñoz‐Cánoves, Pura , Конрад, Р. , Ripa, Roberto , Mansukhani, Robin, Büttner, Sabrina , Brunemeier, Sebastian, Jakimov, Sergey, Rosenzweig‐Lipson, Sharon, Tsai, Shih‐Yin , Rando, Thomas A. , Peterson, Timothy R. , Woods, Tina , Wyss‐Coray, Tony , Finkel, Toren , Strauss, Tzipora , Longo, Valter D. , Sorrentino, Vincenzo , Sebastiano, Vittorio , Li, Wenbin , Suh, Yousin , Niedernhofer, Laura J. , Lu, Yuxuan , Passos, Joao, Niedernhofer, Laura J , Wyss-Coray, Tony , Bakula, Daniela , Lyu, Yu-Xuan, Fu, Qiang , Ying, Kejun , King, Aaron, Olsen, Andrea, Simon, Anna Katharina , Jamil, Aisyah, Bhatti, Asif, Pedersen, Bente Klarlund , Schumacher, Björn , Kennedy, Brian Keith , Huang, Christine Yuan, Correll, Christoph Ulrich , Murphy, Coleen Tara , Ewald, Collin Y. , Valenzano, Dario Riccardo , Erritzøe, David , Sinclair, David , Teeling, Emma C. , Verdin, Eric , Pinilla, Estéfano , Fang, Evandro Fei , Bischof, Evelyne Y. , Pun, Frank W. , Civiletto, Gabriele , Justice, Jamie N. , Vijg, Jan , Gruhn, Jennifer R. , McLaughlin, Jerry, Passos, João F. , Baur, Joseph A. , Shlain, Jordan, Palikaras, Konstantinos , Rasmussen, Lene Juel , Ferrucci, Luigi , Koval, Maria, Topors, Mourad, Roy, Nawal, Pintar, Nika , Singh, Parminder Pal , Robbins, Paul D. , Fedichev, Peter O. , Cabo, Rafael de , Faragher, Richard , Konrad, Rob, Wickström, Sara A. , Brunemeier, Sebastian A., Luo, Shan , Dimmeler, Stefanie , Gladyshev, Vadim N. , Dwaraka, Varun B. , Gorbunova, Vera , Acosta-Rodríguez, Victoria A. , Suh, Yousin , Zhavoronkov, Alex , Scheibye‐Knudsen, Morten

Mayo Clinic

Aging | October 16, 2024 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.18632/aging.206135 | PMID 39418098 Get It

Return to Work in Breast Cancer Patients With and Without Pre-Diagnosis Psychological Distress: A Prospective Cohort Study
Pai, Tanmayi , McLaughlin, Sarah A., Pruthi, Sandhya , Klassen, Christine L. , Cornell, Lauren , Li, Zhuo , Cornell, Lauren F

Mayo Clinic

No container title available | October 11, 2024 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.21203/rs.3.rs-4266430/v1 Get It

Abstract Purpose Many women are employed at the time of breast cancer (BC) diagnosis. Pre-diagnosis psychological distress is prevalent among early-stage BC patients. We prospectively evaluated return to work (RTW) in BC patients with and without reported pre-diagnosis psychological distress over a 15-month period to determine if such distress affects workforce participation and mental health status after curative treatment. Methods 188 patients with newly diagnosed stage 0-III BC and working 35-plus hours/week participated at Mayo Clinic in Minnesota and Florida. Patients received an email survey at diagnosis and 3 and 15 months later. Incidence of severe psychological distress (SPD) per the Kessler Psychological Distress Scale (K6, score ≥ 13) was assessed at each timepoint. Results 77/188 survey respondents (41%) reported pre-diagnosis psychological distress, with 23.5% noting job-related stress. 59/188 patients (31%) had SPD at diagnosis, with similar incidence in the group that had pre-diagnosis distress (+ stress) and the non-stressed group (no-stress). The sample was highly educated and well salaried. The + stress group worked more hours on average at diagnosis (41.3 vs. 39.3 hours, p = 0.034). At 3 months, 83/141 respondents (60.1%) reported taking time off work after diagnosis, with 46.6% returning within 2 weeks and 42.5% requiring > 4 weeks’ break. More + stress patients reported RTW to maintain health insurance (13/56 vs. 6/85, p = 0.006), although this difference resolved by 15 months. SPD rates decreased over time but affected 17/104 respondents (16.3%) at 15 months. Conclusion Job-related stress is a primary driver of pre-diagnosis psychological distress. Three months after BC diagnosis, many women with pre-diagnosis psychological distress were motivated to RTW to keep employer-linked health insurance. SPD is prominent in BC patients; while SPD declined over time, it did not resolve completely.
Dramatic Reanimation and Spontaneous Re-Canalization of a Fourth Ventricular Hemorrhage: “REVIVE” Phenomenon
Salman, Saif , Janu, Andrea , Sharma, Rohan , Hardman, Morgan, McLaughlin, Diane , Tawk, Rabih, Freeman, W David, Tawk, Rabih G. , Freeman, William D.

Mayo Clinic

The Neurohospitalist | October 5, 2024 | Volume: 15 | Issue: 2 | Pages: 202-205

10.1177/19418744241289972 | PMID 39544273 Get It

Background Intraventricular hemorrhage is a calamitous type of stroke where bleeding into the ventricular system can be defined as: primary, if confined within the ventricles; or secondary, due to intracerebral hemorrhage extending from adjacent parenchyma. Intraventricular blood clot can lead to secondary insult and inflammatory responses that culminates in hydrocephalus as the most common cause of death. Purpose THerein, we report a patient with a high modified Graeb scale and low Glasgow coma scale. She spontaneously recanalized her fourth ventricle, decompressed her reticular activating system with remarkable spontaneous bilateral eye opening, and a consequently experienced a halfway drop in her mGS. Results This is the first reported case of a spontaneous recanalization of 4th ventricle obstruction secondary to IVH without intervention and subsequent dramatic neurological improvement. We believe that the apixaban primarily preserved the liquid state of hemorrhage and her presumed elevated ICP was sufficient to push out the liquified blood in the 4th ventricle into the upper spinal canal , recanalizing the 4th ventricle by continuously creating downward CSF pressure waves. Given the RAS location around the 4th ventricle, we hypothesize spontaneous decompression from the clot lysis triggered the RAS activation with sudden arousal manifested as spontaneous bilateral eyes opening. Hence, we refer to this as the reticular activating system reactivation after ventricular hemorrhage evacuation, or simply the “REVIVE” phenomenon. Conclusion This dramatic improvement from coma to awake state is worthy of recognition for future neurotherapeutic interventions.
Repetitive Head Impacts and Perivascular Space Volume in Former American Football Players
Jung, Leonard , Wiegand, Tim L. T. , Tuz‐Zahra, Fatima , Iliff, Jeffrey J. , Piantino, Juan , Arciniega, Hector , Kim, Cara L., Pankatz, Lara, Lin, Alexander , Alosco, Michael L. , Daneshvar, Daniel H. , Pasternak, Ofer , Coleman, Michael J. , Bernick, Charles , Balcer, Laura J. , Reiman, Eric M. , Shenton, Martha E., Protas, Hillary , Boker, Conni, Kowall, Neil W. , Otis, James , Weller, Jason , Simkin, Irene, Andino, Alondra, Diamond, Courtney , Fagle, Tessa, Haller, Olivia, Hung, Tennyson, Gullotti, Nicole, Mariani, Megan, Mayville, Brian, McLaughlin, Kathleen , Nanna, Mary, Platt, Taylor, Pulukuri, Sury, Rica, Fiona, Sestak, Madison, Annis, Douglas S. , Dixon, Dianne B., Finney, Carolyn, Gallagher, Kerrin, Hartlage, Kaitlin , Martin, Brett, Palmisano, Joseph , Pine, Brittany, Fitzsimmons, Jennifer, Breedlove, Katherine M. , Coello, Eduardo , Liao, Hujiun, Rizzoni, Elizabeth, Schultz, Vivian , Silva, Annelise, Vessey, Brynn, Banks, Sarah J. , Ritter, Aaron, Sabbagh, Marwan N. , Cruz, Raelynn de la, Durant, Jan, Golceker, Moragn, Harmon, Nicolette, Kaylegian, Kaeson, Long, Rachelle, Nance, Christin, Sandoval, Priscilla, Serrano, Andrew, Falk, Bryce W., Duffy, Amy, Howard, Marci, Montague, Michelle , Osgood, Thomas, Babcock, Debra, Kirov, Ivian, Marmar, Charles R. , Hasanaj, Lisene, Serrano, Liliana , Al-Kharafi, Alhassan, George, Allan , Martin, Sammie, Runge, William, Peskind, Elaine R. , Colasurdo, Elizabeth A. , Marcus, Daniel S. , Gurney, Jenny , Johnson, Keith A. , Greenwald, Richard M., Shenton, Martha E. , Daneshvar, Daniel H , Shenton, Martha E , Tripodis, Yorghos , Bouix, Sylvain , Mez, Jesse , Sepehrband, Farshid , Rathi, Yogesh , Adler, Charles H. , Cummings, Jeffrey L. , Stern, Robert A. , Koerte, Inga K , Su, Yi , Chen, Kewei , Boker, Connie, Au, Rhoda , Cantu, Robert C. , Farrer, Lindsay A. , Helm, Robert H. , Mercier, Gustavo , Conneely, Shannon E. , Diamond, Courtney, Pulukuri, Surya Vamsi , McClean, Michael D , Annis, Douglas, Chaisson, Christine E. , Finney, Carolyn, Lü, Jun , Ojo, Emmanuel, Ramachandran, Janani , Bonke, Elena M. , Breedlove, Katherine , Miller, Jason Rafe , II, Robert W. Turner , Marek, Kenneth , Dodick, David W. , Geda, Yonas E. , Wethe, Jennifer V. , Falk, Bryce, Montague, Michelle, Barr, William , Goldberg, Judith D. , Wısnıewskı, Thomas , Lui, Yvonne W. , George, Allan, Riley, Edward P.

Mayo Clinic

JAMA Network Open | August 26, 2024 | Volume: 7 | Issue: 8 | Pages: e2428687

10.1001/jamanetworkopen.2024.28687 | PMID 39186275 Get It

ImportanceExposure to repetitive head impacts (RHI) is associated with increased risk for neurodegeneration. Accumulation of toxic proteins due to impaired brain clearance is suspected to play a role.ObjectiveTo investigate whether perivascular space (PVS) volume is associated with lifetime exposure to RHI in individuals at risk for RHI-associated neurodegeneration.Design, Setting, and ParticipantsThis cross-sectional study was part of the Diagnostics, Imaging, and Genetics Network for the Objective Study and Evaluation of Chronic Traumatic Encephalopathy (DIAGNOSE CTE) Research Project, a 7-year multicenter study consisting of 4 US study sites. Data were collected from September 2016 to February 2020 and analyses were performed between May 2021 and October 2023. After controlling for magnetic resonance image (MRI) and processing quality, former American football players and unexposed asymptomatic control participants were included in analyses.ExposurePrior exposure to RHI while participating in American football was estimated using the 3 cumulative head impact indices (CHII-G, linear acceleration; CHII-R, rotational acceleration; and CHII, number of head impacts).Main Outcomes and MeasuresIndividual PVS volume was calculated in the white matter of structural MRI. Cognitive impairment was based on neuropsychological assessment. Linear regression models were used to assess associations of PVS volume with neuropsychological assessments in former American football players. All analyses were adjusted for confounders associated with PVS volume.ResultsAnalyses included 224 participants (median [IQR] age, 57 [51-65] years), with 170 male former football players (114 former professional athletes, 56 former collegiate athletes) and 54 male unexposed control participants. Former football players had larger PVS volume compared with the unexposed group (mean difference, 0.28 [95% CI, 0.00-0.56]; P = .05). Within the football group, PVS volume was associated with higher CHII-R (β = 2.71 × 10−8 [95% CI, 0.50 × 10−8 to 4.93 × 10−8]; P = .03) and CHII-G (β = 2.24 × 10−6 [95% CI, 0.35 × 10−6 to 4.13 × 10−6]; P = .03). Larger PVS volume was also associated with worse performance on cognitive functioning in former American football players (β = −0.74 [95% CI, −1.35 to −0.13]; P = .04).Conclusions and RelevanceThese findings suggest that impaired perivascular brain clearance, as indicated by larger PVS volume, may contribute to the association observed between RHI exposure and neurodegeneration.
Representation of women in clinical trials supporting FDA ‐approval of contemporary cancer therapies
Kalathoor, Sujay , Ghazi, Sanam , Otieno, Beryl, Babcook, Melissa A., Chen, Sunnia T. , Nidhi, Neha, Bae, Junu, Pierre‐Charles, Jovan , Breathett, Khadijah , Mazimba, Sula , Mohammed, Selma F. , Carter, Rebecca R. , Ferdousi, Mussammat , Kola‐Kehinde, Onaopepo , McLaughlin, Eric , Brammer, Jonathan E. , Ruz, Patrick, Khan, Sarah , Odei, Bismarck , Patel, Prem, Addison, Daniel , Breathett, Khadijah , Nidhi, Neha, Johnson, Amber E , Brewer, LaPrincess C. , Bonsu, Janice M. , Mitchell, Darrion , Wei, Lai , Patel, Prem, Paskett, Electra D.

Mayo Clinic

International Journal of Cancer | August 19, 2024 | Volume: 155 | Issue: 11 | Pages: 1958-1968

10.1002/ijc.35110 | PMID 39155749 Get It

Abstract Contemporary anticancer therapies frequently have different efficacy and side effects in men and women. Yet, whether women are well‐represented in pivotal trials supporting contemporary anticancer drugs is unknown. Leveraging the Drugs@FDA database, clinicaltrials.gov , MEDLINE, and publicly available FDA‐drug‐reviews, we identified all pivotal (phase II and III) non‐sex specific trials supporting FDA‐approval of anticancer drugs (1998–2018). Observed‐enrollment‐rates were compared to expected‐population‐rates derived from concurrent US‐National‐Cancer‐Institute's Surveillance‐Epidemiology‐and‐End‐Results (SEER) reported rates and US‐Census databases. Primary outcome was the proportional representation of women across trials, evaluated by a participation‐to‐prevalence ratio (PPR), according to cancer type. Secondary outcome was the report of any sex‐specific analysis of efficacy and/or safety, irrespective of treatment‐arm. Overall, there were 148 trials, enrolling 60,216 participants (60.5 ± 4.0 years, 40.7% female, 79.1% biologic, targeted, or immune‐based therapies) evaluating 99 drugs. Sex was reported in 146 (98.6%) trials, wherein 40.7% (24,538) were women, compared to 59.3% (35,678) men ( p < .01). Altogether, women were under‐represented in 66.9% trials compared to the proportional incidence of cancers by respective disease type; weight‐average PPR of 0.91 (relative difference: ‐9.1%, p < .01). Women were most under‐represented in gastric (PPR = 0.63), liver (PPR = 0.71), and lung (PPR = .81) cancer trials. Sex‐based safety data was reported in 4.0% trials. There was no association between adequate female enrollment and drug efficacy (HR: 0.616 vs. 0.613, p = .96). Over time, there was no difference in the percentage of women recruited into clinical trials. Among pivotal clinical trials supporting contemporary FDA‐approved cancer drugs, women were frequently under‐represented and sex‐specific‐efficacy and safety‐outcomes were commonly not reported.
Melanoma-Derived Extracellular Vesicles Induce CD36-Mediated Pre-Metastatic Niche
Suman, Shankar , Nevala, Wendy K. , Leontovich, Alexey A. , Ward, Caitlin , Jakub, James W. , Kim, Yohan, Geng, Liyi, Stueven, Noah A. , Atherton, Chathu L., Moore, Raymond M. , Schimke, Jill M. , Lucien, Fabrice , McLaughlin, Sarah A., Lucien, Fabrice , Jakub, James W , Moore, Raymond , Markovic, Svetomir N.

Mayo Clinic

Biomolecules | July 12, 2024 | Volume: 14 | Issue: 7 | Pages: 837

10.3390/biom14070837 | PMID 39062552 Get It

CD36 expression in both immune and non-immune cells is known to be directly involved in cancer metastasis. Extracellular vesicles (EVs) secreted by malignant melanocytes play a vital role in developing tumor-promoting microenvironments, but it is unclear whether this is mediated through CD36. To understand the role of CD36 in melanoma, we first analyzed the SKCM dataset for clinical prognosis, evaluated the percentage of CD36 in lymphatic fluid-derived EVs (LEVs), and tested whether melanoma-derived EVs increase CD36 expression and induce M2-macrophage-like characteristics. Furthermore, we performed a multiplex immunofluorescence (MxIF) imaging analysis to evaluate the CD36 expression and its colocalization with various other cells in the lymph node (LN) of patients and control subjects. Our findings show that cutaneous melanoma patients have a worse clinical prognosis with high CD36 levels, and a higher percentage of CD36 in total LEVs were found at baseline in melanoma patients compared to control. We also found that monocytic and endothelial cells treated with melanoma EVs expressed more CD36 than untreated cells. Furthermore, melanoma-derived EVs can regulate immunosuppressive macrophage-like characteristics by upregulating CD36. The spatial imaging data show that cells in tumor-involved sentinel LNs exhibit a higher probability of CD36 expression than cells from control LNs, but this was not statistically significant. Conclusively, our findings demonstrated that CD36 plays a vital role in controlling the immunosuppressive microenvironment in the LN, which can promote the formation of a protumorigenic niche.