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Bartosz Chmielowski
Researcher at University of California, Los Angeles
Publications - 199
Citations - 32691
Bartosz Chmielowski is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Melanoma & Cancer. The author has an hindex of 52, co-authored 165 publications receiving 26520 citations. Previous affiliations of Bartosz Chmielowski include UCLA Medical Center & Vanderbilt University Medical Center.
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Journal ArticleDOI
PD-1 blockade induces responses by inhibiting adaptive immune resistance
Paul C. Tumeh,Christina L. Harview,Jennifer H. Yearley,I. Peter Shintaku,Emma Taylor,Lidia Robert,Bartosz Chmielowski,Marko Spasic,Gina Henry,Voicu Ciobanu,Alisha N. West,Manuel Carmona,Christine Kivork,Elizabeth Seja,Grace Cherry,Antonio Gutierrez,Tristan Grogan,Christine Mateus,Gorana Tomasic,John A. Glaspy,Ryan O. Emerson,Harlan Robins,Robert H. Pierce,David Elashoff,Caroline Robert,Antoni Ribas +25 more
TL;DR: It is shown that pre-existing CD8+ T cells distinctly located at the invasive tumour margin are associated with expression of the PD-1/PD-L1 immune inhibitory axis and may predict response to therapy.
Journal ArticleDOI
Safety and Tumor Responses with Lambrolizumab (Anti–PD-1) in Melanoma
Omid Hamid,Caroline Robert,Adil Daud,F. Stephen Hodi,Wen-Jen Hwu,Richard F. Kefford,Jedd D. Wolchok,Peter Hersey,Richard W. Joseph,Jeffrey S. Weber,Roxana S. Dronca,Tara C. Gangadhar,Amita Patnaik,Hassane M. Zarour,Anthony M. Joshua,Kevin Gergich,Jeroen Elassaiss-Schaap,Alain Algazi,Christine Mateus,Peter D. Boasberg,Paul C. Tumeh,Bartosz Chmielowski,Scot Ebbinghaus,Xiaoyun Nicole Li,S. Peter Kang,Antoni Ribas +25 more
TL;DR: In patients with advanced melanoma, including those who had had disease progression while they had been receiving ipilimumab, treatment with lambrolizumab resulted in a high rate of sustained tumor regression, with mainly grade 1 or 2 toxic effects.
Journal ArticleDOI
Genomic and transcriptomic features of response to anti-pd-1 therapy in metastatic melanoma
Willy Hugo,Jesse M. Zaretsky,Lu Sun,Chunying Song,Blanca Homet Moreno,Siwen Hu-Lieskovan,Beata Berent-Maoz,Jia Pang,Bartosz Chmielowski,Grace Cherry,Elizabeth Seja,Shirley H. Lomeli,Xiangju Kong,Mark C. Kelley,Jeffrey A. Sosman,Douglas B. Johnson,Antoni Ribas,Roger S. Lo +17 more
TL;DR: It is found that overall high mutational loads associate with improved survival, and tumors from responding patients are enriched for mutations in the DNA repair gene BRCA2, suggesting that attenuating the biological processes that underlie IPRES may improve anti-PD-1 response in melanoma and other cancer types.
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Mutations Associated with Acquired Resistance to PD-1 Blockade in Melanoma
Jesse M. Zaretsky,Angel Garcia-Diaz,Daniel Sanghoon Shin,Helena Escuin-Ordinas,Willy Hugo,Siwen Hu-Lieskovan,Davis Y. Torrejon,Gabriel Abril-Rodriguez,Salemiz Sandoval,Lucas Barthly,Justin Saco,Blanca Homet Moreno,Riccardo Mezzadra,Bartosz Chmielowski,Kathleen Ruchalski,I. Peter Shintaku,Phillip J. Sanchez,Cristina Puig-Saus,Grace Cherry,Elizabeth Seja,Xiangju Kong,Jia Pang,Beata Berent-Maoz,Begoña Comin-Anduix,Thomas G. Graeber,Paul C. Tumeh,Ton N. Schumacher,Roger S. Lo,Antoni Ribas +28 more
TL;DR: Acquired resistance to PD-1 blockade immunotherapy in patients with melanoma was associated with defects in the pathways involved in interferon-receptor signaling and in antigen presentation.
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Nivolumab versus chemotherapy in patients with advanced melanoma who progressed after anti-CTLA-4 treatment (CheckMate 037): a randomised, controlled, open-label, phase 3 trial.
Jeffrey S. Weber,Sandra P. D'Angelo,David R. Minor,F. Stephen Hodi,Ralf Gutzmer,Bart Neyns,Christoph Hoeller,Nikhil I. Khushalani,Wilson H. Miller,Christopher D. Lao,Gerald P. Linette,Luc Thomas,Paul Lorigan,Kenneth F. Grossmann,Jessica C. Hassel,Michele Maio,Mario Sznol,Paolo A. Ascierto,Peter Mohr,Bartosz Chmielowski,Alan H. Bryce,Inge Marie Svane,Jean-Jacques Grob,Angela M. Krackhardt,Christine Horak,Alexandre Lambert,Arvin Yang,James Larkin +27 more
TL;DR: Nivolumab led to a greater proportion of patients achieving an objective response and fewer toxic effects than with alternative available chemotherapy regimens for patients with advanced melanoma that has progressed after ipilimumab or ipilicumab and a BRAF inhibitor.