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The 2023 ACR / EULAR Antiphospholipid Syndrome Classification Criteria
Barbhaiya, Medha , Zuily, Stéphane , Naden, Ray, Hendry, Alison , Manneville, Florian , Amigo, Mary‐Carmen , Amoura, Zahir , Andréoli, Laura , Artım-Esen, Bahar , Atsumi, Tatsuya , Avčin, Tadej , Branch, D. Ware , Carvalheiras, Graziela , Cohen, Hannah , Jesús, Guilherme Ramires de , Desai, Sheetal , Sancho, Maria De, Küçükkaya, Reyhan Diz , Françès, Camille, García, David , Jordan, Natasha, Leaf, Rebecca Karp , Kello, Nina , Laskin, Carl A. , Lee, Alfred Ian , Legault, Kimberly, Levine, Steve, Limper, Maarten , Lockshin, Michael D. , Mayer-Pickel, K , Musial, Jack, Orsolini, Giovanni , Ortel, Thomas L. , Petri, Michelle , Gómez‐Puerta, José A. , Raimboug, Quentin, Roubey, Robert, Seshan, Surya V. , Tektonidou, Maria G. , Wahl, Denis , Willis, Rohan , Zuily, Catherine, Costenbader, Karen H. , Erkan, Doruk , Collaborators, the ACR/EULAR APS Classification Criteria, Andreoli, Laura , Avcin, Tadej , de Jesus, Guilherme , Duarte-García, Alí , Petri, Michelle , Pons-Estel, Guillermo , Gomez-Puerta, Jose A , Sciascia, Savino , Tektonidou, Maria G , Yelnik, Cecile , Costenbader, Karen , Erkan, Doruk , Cohen, Hannah , Andrade, Danieli , Belmont, H. Michael , Bertolaccini, Maria Laura , Casini, Alessandro , Cervera, Ricard , Costedoat-Chalumeau, Nathalie , Crowther, Mark Andrew , Delluc, Aurélien , Devreese, Katrien M.J. , Duarte‐García, Alí , Françès, C. , Gris, Jean‐Christophe , Knight, Jason S , Levy, Roger A. , Meroni, PierLuigi , Pengo, Vittorio , Pons‐Estel, Guillermo , Sanna, Giovanni , Sciascia, Savino , Tincani, Anǵela , Guillemin, Francis , Collaborators, the ACR/EULAR APS Classification Criteria

Arthritis & Rheumatology | August 28, 2023 | Volume: 75 | Issue: 10 | Pages: 1687-1702

10.1002/art.42624 | PMID 37635643 Get It

Objective To develop new antiphospholipid syndrome (APS) classification criteria with high specificity for use in observational studies and trials, jointly supported by the American College of Rheumatology (ACR) and EULAR. Methods This international multidisciplinary initiative included 4 phases: 1) Phase I, criteria generation by surveys and literature review; 2) Phase II, criteria reduction by modified Delphi and nominal group technique exercises; 3) Phase III, criteria definition, further reduction with the guidance of real‐world patient scenarios, and weighting via consensus‐based multicriteria decision analysis, and threshold identification; and 4) Phase IV, validation using independent adjudicators’ consensus as the gold standard. Results The 2023 ACR/EULAR APS classification criteria include an entry criterion of at least one positive antiphospholipid antibody (aPL) test within 3 years of identification of an aPL‐associated clinical criterion, followed by additive weighted criteria (score range 1–7 points each) clustered into 6 clinical domains (macrovascular venous thromboembolism, macrovascular arterial thrombosis, microvascular, obstetric, cardiac valve, and hematologic) and 2 laboratory domains (lupus anticoagulant functional coagulation assays, and solid‐phase enzyme‐linked immunosorbent assays for IgG/IgM anticardiolipin and/or IgG/IgM anti–β 2 ‐glycoprotein I antibodies). Patients accumulating at least 3 points each from the clinical and laboratory domains are classified as having APS. In the validation cohort, the new APS criteria versus the 2006 revised Sapporo classification criteria had a specificity of 99% versu s 86%, and a sensitivity of 84% versus 99%. Conclusion These new ACR/EULAR APS classification criteria were developed using rigorous methodology with multidisciplinary international input. Hierarchically clustered, weighted, and risk‐stratified criteria reflect the current thinking about APS, providing high specificity and a strong foundation for future APS research.
Does the use of oral contraceptives or hormone replacement therapy offer protection against the formation or rupture of intracranial aneurysms in women?: a systematic review and meta-analysis
Santana, Diana , Gonçalves, Mariângela , Zimpel, Vanessa Milanese Holanda , Figueiredo, Eberval Gadelha , Santana, Diana Lara Pinto de , Gonçalves, Mariangela Barbi , Holanda, Vanessa M. , Figueiredo‬‬‬, Eberval Gadelha

Revista da Associação Médica Brasileira | August 4, 2023 | Volume: 69 | Issue: suppl 1 | Pages: No page available

10.1590/1806-9282.2023s118 | PMID 37556637 Get It

Gravidez não planejada no Brasil: estudo nacional em oito hospitais universitários
Nilson, Tainá Vieira , Amato, Angélica Amorim , Resende, Ceres Nunes , Primo, Walquíria Quida Salles Pereira , Nomura, Roseli Mieko Yamamoto , Costa, Maria Laura , Opperman, Maria Lúcia, Brock, M. , Trapani, Alberto , Damásio, Lia Cruz Vaz da Costa , Reis, Nadia , Borges, Vera Therezinha Medeiros , Araújo, Ana Cristina Pinheiro Fernandes de , Opperman, Maria Lucia , Brock, Marianna Facchinetti , Trapani, Alberto , Borges, Vera , Araujo, Ana Cristina Pinheiro Fernandes de , Ruano, Rodrigo , Zaconeta, Alberto , Nomura, Roseli , Damasio, Lia , Nilson, Taína Vieira , Ruano, Rodrigo

Revista de Saúde Pública | August 2, 2023 | Volume: 57 | Issue: 1 | Pages: 35

10.11606/s1518-8787.2023057004449 | PMID 37377331 Get It

OBJETIVO: Estimar a prevalência de gestação não planejada (GNP) em oito hospitais públicos universitários, distribuídos nas cinco regiões que compõem o Brasil. MÉTODOS: Análise secundária de um estudo transversal multicêntrico nacional, realizado em oito hospitais universitários públicos, entre 1º de junho e 31 de agosto de 2020, no Brasil. Amostra por conveniência incluindo mulheres que deram à luz em período de sessenta dias consecutivos e atenderam aos seguintes critérios: maiores de 18 anos; idade gestacional acima de 36 semanas no parto; com recém-nascido único e vivo, sem malformações. RESULTADOS: Amostra composta por 1.120 puérperas, das quais 756 (67,5%) declararam que a gravidez não tinha sido programada. A mediana da prevalência de GNP foi de 59,7%. Observou-se diferença significativa na prevalência de GNP entre os hospitais: Campinas (54,8%), Porto Alegre (58,2%), Florianópolis (59%), Teresina (61,2%), Brasília (64,3%), São Paulo (64,6%), Campo Grande (73,9%) e Manaus (95,3%) (p < 0,001). Foram fatores significativamente associados a GNP a idade materna, cor negra, menor renda familiar, maior número de filhos, maior número de pessoas convivendo em casa e não ter parceiro. CONCLUSÃO: na amostra estudada, cerca de dois terços das gestações foram declaradas como não programadas. A prevalência de gestação não planejada teve relação com fatores sociais e demográficos e variou significativamente entre os hospitais universitários avaliados.
Usability and feasibility of PreventS-MD web app for stroke prevention
Feigin, Valery L. , Krishnamurthi, Rita , Medvedev, Oleg N. , Merkin, Alexander, Nair, Balakrishnan, Jalili-Moghaddam, Shabnam, Barker‐Collo, Suzanne , Ratnasabapathy, Yogini , Skinner, Luke C , Sachdev, Perminder S. , Brainin, Michael , Hankey, Graeme J. , Azarpazhooh, Reza, Bhatia, Anjali , Budinčević, Hrvoje , Child, Nicholas, Chwojnicki, Kamil , Correia, Manuel, Davis, Alan , Devlin, Gerry , Demarin, Vida , Dhamija, Rajinder K. , Ding, Ding , Докова, Клара , Dudley, Makarena , Dyer, Jesse, Edmonds, Misty , Ely, Marcela , Feigin, Svetlana , Fornolles, C, Gall, Seana , Gil, Artyom , George, Ann, Haršány, Michal , Harwood, Matire, Hou, Zeng‐Guang , Ibrahim, Norlinah Mohamed, Ka‘ai, Tania , Kalra, Nidhi , Katzenellenbogen, Judith , Kang, Law Zhe, Kar, Arindam , Kazin, Vitalij, Kamenova, Saltanat , Kondybaeva, A., Lavados, Pablo M, Lee, Tsong‐Hai , Liu, Liping , Mahawish, Karim , Maluchnik, Michał , Martins, Sheila , Mavaddat, Nahal , Mehndiratta, Man Mohan, Oliver, Angela , Öztürk, Şerefnur , Patel, Nikhil, Prakash, B, Roos, Kev, Sekaran, Lakshmanan , Shamalov, N. А. , Solomon, Alina, Suwanwela, Nijasri C., Volevach, Ekaterina , Volný, Ondřej , Wan, Joyce, Withanapathirana, Katila, Welte, Tamara, Wiebers, David O. , Zaidi, Wan Asyraf Wan , Kravchenko, Michael , Barker-Collo, Suzanne , Owolabi, Mayowa , Sachdev, Perminder S , Brainin, Michael , Thrift, Amanda , Hankey, Graeme J , Katzenellenbogen, Judith M , Nair, Balakrishnan, Kravchenko, Michael , Jalili‐Moghaddam, Shabnam , Norrving, Bo , Arroll, Bruce , Thrift, Amanda G. , Abd-Allah, Foad , Akinyemi, Rufus , Bath, Philip M. , Brayne, Carol , Child, Nicholas, Farhoudi, Mehdi , Aziz, Aznida Firzah Abdul , Gabriel, Denis , Gnedovskaya, Elena V. , Harwood, Matire L. N. , Hillis, Argye Elizabeth , Hwang, Kevin O. , Ibrahim, Norlinah Mohamed , Kalra, Nidhi, Karaszewski, Bartosz , Kivipelto, Miia , Lavados, Pablo M. , Mateen, Farrah J. , Mikulík, Robert , Oliver, Angela, Patel, Nikhil, Пирадов, М. А. , Purvis, Tara L. , Reips, Ulf‐Dietrich , Rosand, Jonathan M. , Sahathevan, Ramesh , Silva, Deidre Anne De , Singh, Vinod, Srivastava, M.V. Padma , Taylor, Denise M. , Truelsen, Thomas Clement , Venketasubramanian, Narayanaswamy , Winkler, Andrea Sylvia , Wijeratne, Tissa , Wu, Teddy Y

International Journal of Stroke | July 24, 2023 | Volume: 19 | Issue: 1 | Pages: 94-104

10.1177/17474930231190745 | PMID 37485871 Get It

Background: Most strokes and cardiovascular diseases (CVDs) are potentially preventable if their risk factors are identified and well controlled. Digital platforms, such as the PreventS-MD web app (PreventS-MD) may aid health care professionals (HCPs) in assessing and managing risk factors and promoting lifestyle changes for their patients. Methods: This is a mixed-methods cross-sectional two-phase survey using a largely positivist (quantitative and qualitative) framework. During Phase 1, a prototype of PreventS-MD was tested internationally by 59 of 69 consenting HCPs of different backgrounds, age, sex, working experience, and specialties using hypothetical data. Collected comments/suggestions from the study HCPs in Phase 1 were reviewed and implemented. In Phase 2, a near-final version of PreventS-MD was developed and tested by 58 of 72 consenting HCPs using both hypothetical and real patient (n = 10) data. Qualitative semi-structured interviews with real patients (n = 10) were conducted, and 1 month adherence to the preventive recommendations was assessed by self-reporting. The four System Usability Scale (SUS) groups of scores (0–50 unacceptable; 51–68 poor; 68–80.3 good; >80.3 excellent) were used to determine usability of PreventS-MD. Findings: Ninety-nine HCPs from 27 countries (45% from low- to middle-income countries) participated in the study, and out of them, 10 HCPs were involved in the development of PreventS before the study, and therefore were not involved in the survey. Of the remaining 89 HCPs, 69 consented to the first phase of the survey, and 59 of them completed the first phase of the survey (response rate 86%), and 58 completed the second phase of the survey (response rate 84%). The SUS scores supported good usability of the prototype (mean score = 80.2; 95% CI [77.0–84.0]) and excellent usability of the final version of PreventS-MD (mean score = 81.7; 95% CI [79.1–84.3]) in the field. Scores were not affected by the age, sex, working experience, or specialty of the HCPs. One-month follow-up of the patients confirmed the high level of satisfaction/acceptability of PreventS-MD and (100%) adherence to the recommendations. Interpretation: The PreventS-MD web app has a high level of usability, feasibility, and satisfaction by HCPs and individuals at risk of stroke/CVD. Individuals at risk of stroke/CVD demonstrated a high level of confidence and motivation in following and adhering to preventive recommendations generated by PreventS-MD.
Patients with transthyretin amyloidosis enrolled in THAOS between 2018 and 2021 continue to experience substantial diagnostic delay
Coelho, Teresa , Grogan, Martha , Conceição, Isabel , Kristen, Arnt V. , Wixner, Jonas , González‐Moreno, Juan , Maurer, Mathew S. , García‐Pavía, Pablo , Tournev, Ivailo , González‐Costello, José , Cariou, Eve, Glass, Oliver, Chapman, Doug, Amass, Leslie, investigators, on behalf of the THAOS, Hüsing‐Kabar, Anna, Drachman, Brian, Sekijima, Yoshiki , Jeon, Eun‐Seok , Slosky, David, Hanna, Mazen , Freimer, Miriam , Muñoz-Beamud, Francisco, Mølgaard, Henning, Press, Rayomand , Cirami, Calogero Lino , Plana, Josep Maria Campistol, Inamo, Jocelyn , Quan, Dianna , Dori, Amir , Murali, Srinivas, Živković, Saša , Correia, Edileide de Barros , Nicolau, José Nativi, Tallaj, José , Fernández‐Torrón, Roberto , Polydefkis, Michael , Tauras, James M. , Ventura, Hector, Brunkhorst, Robert, Darstein, Felix , Marburger, Tessa, Mueller, Christopher R. , Cleemput, Johan Van , Parman, Yeşim , Sarswat, N., Warner, Alberta L. , Steidley, D. Eric , Ralph, Jeffrey , Cotts, William, Hoffman, James E. , Rugiero, Marcelo, Misawa, Sonoko , Muñoz-Blanco, José Luís , Dávila, Lucía Galán, Sadeh, Menachem , Luo, Jin, Kyriakides, Theodoros , Wang, Annabel , Dispenzieri, Angela , Conceição, Isabel , Garcia-Pavia, Pablo , Dispenzieri, Angela , Waddington‐Cruz, Márcia , Diemberger, Igor , Maurer, Mathew S , Planté‐Bordeneuve, Violaine , González-Duarte, Alejandra , investigators, on behalf of the THAOS, Barroso, Fábio , Ueda, Mitsuharu , Mazzeo, Anna Teresa , Gentile, Luca , Luigetti, Marco , Adams, David , Nienhuis, Hans L. A. , Emdin, Michele , Miller, Edward J. , Hummel, Scott L. , Witteles, Ronald , Shah, Sanjiv J , Lenihan, Daniel , Azevedo, Olga , Tan, Cheng‐Yin , Fine, Nowell Mark , Tschöpe, Carsten , Obici, Laura , BADELITA, Sorina Nicoleta , Gottlieb, Stephen S. , Oh, Jeeyoung , Mueller, Christopher, Salutto, Valeria , Chao, Chi‐Chao , Kaufmann, Horacio

Amyloid | July 17, 2023 | Volume: 30 | Issue: 4 | Pages: 445-448

10.1080/13506129.2023.2229484 | PMID 37459334 Get It

A nitroalkene derivative of salicylate alleviates diet-induced obesity by activating creatine metabolism and non-shivering thermogenesis
Cal, Karina, Leyva, Alejandro , Rodriguez-Duarte, Jorge, Ruiz, Santiago , Santos, Leonardo, Colella, Lucía, Ingold, Mariana , Vilaseca, Cecilia, Galliussi, Germán , Handy, Rachel, Reis, Larissa Menezes dos , Espasandín, Camila , Dapueto, Rosina , Thompson, Katie, Agorrody, Guillermo , DeVallance, Evan , Meadows, Ethan , Barbosa, Gabriele Santana, Souza, Leonardo Osbourne Lai de , Chichierchio, Marina Santos , Valez, Valeria , Aicardo, Adrián , Jakobsen, Steen, Kamaid, Andrés , Porcal, Williams , Calliari, Aldo , Wang, Yekai, Hollander, John M. , White, Thomas A. , Radí, Rafael , O’Doherty, Robert M. , Holloway, Graham P. , Kelley, Eric, Chini, Eduardo N. , Peclat, Thais R , Dos Reis, Larissa Menezes , Thompson, Katie L., Chichierchio, Marina Santos , Aicardo, Adrián , Contreras, Paola , White, Thomas A , Quijano, Celia , Moraes-Vieira, Pedro , Mori, Marcelo A , Lopez, Gloria V , Batthyány, Carlos , Chini, Eduardo Nunes , Escande, Carlos , Rodriguez‐Duarte, Jorge , Ziegler, Lucía , Peclat, Thais , Bresque, Mariana , Handy, Rachel, King, Rachel, Breining, Peter , Lopez, Andres, Lewis, Sara E. , Vendelbo, Mikkel Holm , Verdes, José Manuel , Du, Jianhai , Moyna, Guillermo , Leonardi, Roberta , Camacho-Pereira, Juliana , Durán, Rosario

No container title available | July 12, 2023 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.21203/rs.3.rs-3101395/v1 | PMID 37502859 Get It

Abstract Obesity-related type II diabetes (diabesity) has increased global morbidity and mortality dramatically. Previously, the ancient drug salicylate demonstrated promise for the treatment of type II diabetes, but its clinical use was precluded due to high dose requirements. In this study, we present a nitroalkene derivative of salicylate, 5-(2-nitroethenyl)salicylic acid (SANA), a molecule with unprecedented beneficial effects in diet-induced obesity (DIO). SANA reduces DIO, liver steatosis and insulin resistance at doses up to 40 times lower than salicylate. Mechanistically, SANA stimulated mitochondrial respiration and increased creatine-dependent energy expenditure in adipose tissue. Indeed, depletion of creatine resulted in the loss of SANA action. Moreover, we found that SANA binds to creatine kinases CKMT1/2, and downregulation CKMT1 interferes with the effect of SANA in vivo. Together, these data demonstrate that SANA is a first-in-class activator of creatine-dependent energy expenditure and thermogenesis in adipose tissue and emerges as a candidate for the treatment of diabesity.
Lower Trapezius Transfer Improves Clinical Outcomes With a Rate of Complications and Reoperations Comparable to Other Surgical Alternatives in Patients with Functionally Irreparable Rotator Cuff Tears: A Systematic Review
Marinis, Rodrigo de , Atwan, Yousif , Garcia, Ausberto Velasquez , Morrey, Mark E. , Sánchez‐Sotelo, Joaquín , de Marinis, Rodrigo, Marigi, Erick M. , Velasquez Garcia, Ausberto , Sanchez-Sotelo, Joaquin, Sanchez-Sotelo, J. , Morrey, Mark E , de Marinis, Rodrigo

Arthroscopy | June 30, 2023 | Volume: 40 | Issue: 3 | Pages: 950-959

10.1016/j.arthro.2023.06.029 | PMID 37394146 Get It

Purpose To analyze the clinical outcomes of lower trapezius transfer (LTT) for patients with functionally irreparable rotator cuff tears (FIRCT) and summarize the available literature regarding complications and reoperations. Methods After registration in the International prospective register of systematic reviews (PROSPERO [CRD42022359277]), a systematic review following the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) guidelines was performed. Inclusion criteria were English, full‐length, peer‐reviewed publications with a level of evidence IV or higher reporting on clinical outcomes of LTT for FIRCT. Ovid MEDLINE, Embase, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, and Scopus via Elsevier databases were searched. Clinical data, complications and revisions were systematically recorded. Results Seven studies with 159 patients were identified. The mean age range was 52 to 63 years, 70.4% of the patients included were male, and the mean follow‐up time ranged between 14 and 47 months. At final follow‐up, LTT lead to improvements in range of motion, with reported forward elevation (FE) and external rotation (ER) mean gains of 10° to 66° and 11° to 63°, respectively. ER lag was present before surgery in 78 patients and was reversed after LTT in all shoulders. Patient‐reported outcomes were improved at final follow‐up, including the American Shoulder and Elbow Society score, Shoulder Subjective Value and Visual Analogue Scale. The overall complication rate was 17.6%, and the most reported complication was posterior harvest site seroma/hematoma (6.3%). The most common reoperation was conversion to reverse shoulder arthroplasty (5%) with an overall reoperation rate of 7.5%. Conclusions Lower trapezius transfer improves clinical outcomes in patients with irreparable rotator cuff tears with a rate of complications and reoperations comparable to other surgical alternatives in this group of patients. Increases in forward flexion and ER are to be expected, as well as a reversal of ER lag sign when present before surgery. Level of Evidence Level IV, systematic review of Level III‐IV studies.
PARP-inhibitors Improve Progression-Free Survival in Breast Cancer Patients with Previous Platinum Exposure – A Systematic Review and Meta-Analysis
Pessoa, Beatriz , Brandao, Gabriela, Silva, Caroliny Da, Gatof, Emily Stern , Yadav, Siddhartha , Mina, Lida A. , Wulf, Gerburg M. , Tung, Nadine , Marinho, Alice Deberaldini , Yadav, Siddhartha , Tung, Nadine , Wulf, Gerburg M , Ernst, Brenda , Couch, Fergus J. , Batalini, Felipe

No container title available | June 26, 2023 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.21203/rs.3.rs-2869964/v1 Get It

Abstract Importance: The poly-adenosine diphosphate–ribose polymerase (PARP) enzymes are important for DNA single-strand break repair and PARP inhibitors (PARPi) cause an accumulation of unresolved DNA damage in tumors with BRCA1/2 mutations, resulting in cell death. However, because platinum salts also ultimately cause double-strand DNA breaks and may have overlapping mechanisms of resistance with PARPi, the efficacy of PARPi in patients with prior platinum therapy is unknown. Objective We sought to evaluate the efficacy of PARPi in patients with BRCA1/2-related breast cancer and previous platinum exposure. Data Sources: PubMed, Embase, and Cochrane Central Register of Controlled Trials databases were searched for papers up to June 26, 2022. Study Selection: We performed a systematic review and meta-analysis of studies that evaluated the efficacy of PARPi in patients with advanced or metastatic breast cancer and germline BRCA1/2 mutations. Two independent investigators identified double-blind, randomized controlled trials (RCTs) that included the subgroup of previous exposure to platinum. Data Extraction and Synthesis: Data extraction from published reports and quality assessment were performed under Cochrane recommendations. The software Review Manager 5.3 was selected for conducting the statistical analyses. Main Outcome(s) and Measure(s): The primary endpoint of interest was progression-free survival (PFS). Hazard ratios (HRs) with a 95% confidence interval (CI) were pooled, and a p-value of < 0.05 was considered statistically significant. Results From 2,069 database results (487 on PubMed; 1,376 on Embase; and 206 on Cochrane), 42 studies were fully reviewed, and 4 RCTs (total of 249 patients) were included in the final investigation. The PARPi included were Olaparib, Talazoparib, Niraparib, and Veliparib. Pooled analysis showed that PARPi improved PFS in breast cancer patients with prior treatment with platinum-based therapy compared to the control group [HR = 0.72; 95% CI, 0.53–0.97; p = 0.03]. For comparison, the population without previous platinum exposure had a similar magnitude of benefit from PARPi [HR = 0.68; 95% CI, 0.52–0.89; p = 0.005]. Conclusions and Relevance: Despite the concerns about cross-resistance between PARPi and platinum agents, patients with advanced breast cancer and previous exposure to platinum therapy have a longer PFS with PARPi when compared to standard chemotherapy.
ATRT-15. ATRTS HIJACK EPIGENETIC MECHANISMS TO PROMOTE IMMUNOSUPPRESSION AND ESCAPE FROM NK CELL THERAPY
Swaminathan, Jyothishmathi , Ho, Ben, Maegawa, Shinji , Laureano, Álvaro Macedo , Brugmann, Ben, Kennis, Bridget, Dobson, Tara , Shaik, Shavali, Ravikumar, Visweswaran , Sandberg, David I. , Cooper, Laurence J.N. , Zaky, Wafik , Khatua, Soumen , Rao, Arvind , Harmanci, Arif , Gopalakrishnan, Vidya , Guo, Lei Ming , Silla, Lúcia Mariano da Rocha , Lee, Dean Anthony , Xu, Lin , Huang, Annie

Neuro-Oncology | June 12, 2023 | Volume: 25 | Issue: Supplement_1 | Pages: i4-i4

10.1093/neuonc/noad073.015 Get It

Abstract Atypical Teratoid/Rhabdoid Tumors (ATRTs) are malignant tumors of the central nervous system in children. They are almost universally characterized by genetic loss of SWI/SNF Related, Matrix Associated, Actin Dependent Regulator of Chromatin Subfamily member B1 (SMARCB1) - a core subunit of the ATP-dependent SWI/SNF chromatin remodeling complex, and dysregulation of lineage restricted enhancers. Here, we show that tumor subgroup-specific upregulation of a distant member of the transforming growth factor-β (TGF-β), bone morphogenic factor (BMF) family of proteins drives insensitivity to NK-mediated cytolysis in vitro and in vivo. Mechanistically, subgroup-specific loss of chromatin occupancy by the RE1 Silencing Transcription Factor (REST) to its consensus RE1 motif, allowed deposition of enhancer-specific histone H3 lysine4 (K4) mono-methylation and histone H3K27 acetylation marks to activate an enhancer-promoter interaction. Restoration of REST binding or BET-domain inhibition resulted in a significant reduction in the enhancer marks and enhancer-promoter interaction and involved histone H3K27me3 deposition at the REST binding site, to facilitate gene silencing and sensitization of ATRTs to NK-mediated cytolysis. Thus, our study has identified a novel function for REST as a modulator of tumor-intrinsic enhancer activity and tumor-extrinsic immune microenvironment. Of equal significance, we highlight a role of REST in recruiting the polycomb repressive complex-2 (PRC2) in gene silencing in ATRTs.
Safety and serum estradiol levels in hormonal treatments for vulvovaginal atrophy in breast cancer survivors: A systematic review and meta-analysis.
Comini, Ana Carolina, Carvalho, Bruno Murad , Moreira, Matheus José Barbosa , Reis, Pedro Cotta Abrahão , Colapietro, Luisa, Northern, J., Murad, Bruno , Batalini, Felipe

Journal of Clinical Oncology | June 4, 2023 | Volume: 41 | Issue: 16_suppl | Pages: e24049-e24049

10.1200/jco.2023.41.16_suppl.e24049 Get It

e24049 Background: Vulvo-Vaginal Atrophy (VVA) or Genitourinary Syndrome of Menopause (GSM) is a common condition among breast cancer (BC) patients, especially those undergoing antiestrogen therapy. Despite being an option in refractory cases, the safety of hormonal treatment remains uncertain in this population. The aim of this study was to review the safety and serum estrogen levels of hormonal therapy in patients with BC history presenting with VVA symptoms. Methods: Pubmed, Embase, and Cochrane were searched for studies comparing different hormonal treatment options for VVA in breast cancer survivors. Statistical analysis was performed using a random effects model and heterogeneity using Cochran's Q-statistic and the I2 index. Results: We included 17 studies, of which 5 were randomized controlled trials (RCTs). Treatment modalities included in this study were topical vaginal estradiol and estriol preparations, vaginally applied testosterone, DHEA, and ospemifene. We found that, among patients treated with the estriol and estradiol preparations, there was an average increase of 7.67pg/ml (SMD 7.67 pg/mL; 95% CI -1.00, 16.35; p < 0.001). Analysis of the testosterone group found temporary peaks of serum estradiol levels, but one study showed persistent elevation above normal postmenopausal levels. One study with prasterone revealed no elevation of serum estradiol concentration. One study with ospemifene demonstrated no increase in the risk of BC recurrence. Conclusions: In conclusion, among treatments available for BC survivors, low-dose vaginal estrogen showed the smallest changes in serum estradiol levels and had the most evidence, but safety remains unclear, especially for patients on aromatase inhibitors. Alternative treatments such as ospemifene need more data supporting safety and efficacy. These results suggest that concerns related to cancer recurrence should keep aiming for the lowest possible concentration.