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Boiarsky D, Lydon CA, Chambers ES, Sholl LM, Nishino M, Skoulidis F, Heymach JV, Luo J, Awad MA, Janne PA, Van Allen EM, Barbie DA, Vokes NI. Molecular markers of metastatic disease in KRAS-mutant lung adenocarcinoma. Ann Oncol 2023; 34:589-604. [PMID: 37121400 PMCID: PMC10425882 DOI: 10.1016/j.annonc.2023.04.514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/11/2023] [Accepted: 04/19/2023] [Indexed: 05/02/2023] Open
Abstract
BACKGROUND Prior studies characterized the association of molecular alterations with treatment-specific outcomes in KRAS-mutant (KRASMUT) lung adenocarcinoma (LUAD). Less is known about the prognostic role of molecular alterations and their associations with metastatic disease. PATIENTS AND METHODS We analyzed clinicogenomic data from 1817 patients with KRASMUT LUAD sequenced at the Dana-Farber Cancer Institute (DFCI) and Memorial Sloan Kettering Cancer Center (MSKCC). Patients with metastatic (M1) and nonmetastatic (M0) disease were compared. Transcriptomic data from The Cancer Genome Atlas (TCGA) were investigated to characterize the biology of differential associations with clinical outcomes. Organ-specific metastasis was associated with overall survival (OS). RESULTS KEAP1 (DFCI: OR = 2.3, q = 0.04; MSKCC: OR = 2.2, q = 0.00027) and SMARCA4 mutations (DFCI: OR = 2.5, q = 0.06; MSKCC: OR = 2.6, q = 0.0021) were enriched in M1 versus M0 tumors. On integrative modeling, NRF2 activation was the genomic feature most associated with OS. KEAP1 mutations were enriched in M1 versus M0 tumors independent of STK11 status (KEAP1MUT/STK11WT: DFCI OR = 3.0, P = 0.0064; MSKCC OR = 2.0, P = 0.041; KEAP1MUT/STK11MUT: DFCI OR = 2.3, P = 0.0063; MSKCC OR = 2.5, P = 3.6 × 10-05); STK11 mutations without KEAP1 loss were not associated with stage (KEAP1WT/STK11MUT: DFCI OR = 0.97, P = 1.0; MSKCC OR = 1.2, P = 0.33) or outcome. KEAP1/KRAS-mutated tumors with and without STK11 mutations exhibited high functional STK11 loss. The negative effects of KEAP1 were compounded in the presence of bone (HR = 2.3, P = 4.4 × 10-14) and negated in the presence of lymph node metastasis (HR = 1.0, P = 0.91). CONCLUSIONS Mutations in KEAP1 and SMARCA4, but not STK11, were associated with metastatic disease and poor OS. Functional STK11 loss, however, may contribute to poor outcomes in KEAP1MUT tumors. Integrating molecular data with clinical and metastatic-site annotations can more accurately risk stratify patients.
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Affiliation(s)
- D Boiarsky
- Department of Medicine, Tufts Medical Center, Boston
| | - C A Lydon
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston
| | - E S Chambers
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston
| | - L M Sholl
- Center for Advanced Molecular Diagnostics, Brigham & Women's Hospital & Harvard Medical School, Boston
| | - M Nishino
- Department of Radiology, Brigham and Women's Hospital, Boston
| | - F Skoulidis
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas M.D. Anderson Cancer Center, Houston
| | - J V Heymach
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas M.D. Anderson Cancer Center, Houston
| | - J Luo
- Department of Medicine, Dana-Farber Cancer Institute, Boston
| | - M A Awad
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston
| | - P A Janne
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston
| | - E M Van Allen
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston; Broad Institute of Harvard & MIT, Cambridge; Center for Cancer Precision Medicine, Dana-Farber Cancer Institute, Boston
| | - D A Barbie
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston
| | - N I Vokes
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas M.D. Anderson Cancer Center, Houston; Department of Genomic Medicine, University of Texas M.D. Anderson Cancer Center, Houston, USA.
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2
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Bondeson D, Paolella B, Asfaw A, Rothberg M, Skipper T, Mesa G, Gonzalez A, Surface LE, Ito K, Kazachkova M, Colgan WN, Warren A, Dempster J, Krill-Burger JM, Ericsson M, Tang A, Fung I, Chambers ES, Abdusamad M, Dumont N, Doench J, Piccioni F, Root D, Boehm J, Hahn WC, Mannstadt M, McFarland J, Vazquez F, Golub T. Abstract 1028: Phosphate dysregulation as a novel therapeutic strategy in ovarian and uterine cancers. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-1028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Precision medicine promises to improve the treatment of cancer patients, but a lack of therapeutic targets and associated predictive biomarkers limit this reality. To identify novel strategies, we integrate genome-scale CRISPR viability screens across many cancer models with cellular and molecular features to systematically define The Cancer Dependency Map. Using this data, we have identified that XPR1, an inorganic phosphate exporter protein, is a highly selective dependency gene in ovarian and uterine cancers. These cancers are sensitive to loss of XPR1 due to over-expression of SLC34A2, a phosphate importer protein. These data suggest a synthetic lethal relationship in which intracellular phosphate homeostasis is dysregulated in cancer. As proof-of-concept of pharmacological inhibition of XPR1, we have developed protein ligands based on the receptor binding domain of viruses which use XPR1 for cellular entry. These ligands inhibit XPR1 and kill cancer cells in an on-mechanism manner, but may be limited in their clinical utility. As such, we are deepening our understanding of the mechanisms of XPR1-dependent phosphate efflux, and have identified a novel partner protein that is integral to phosphate efflux, possibly revealing functional domains that small molecule inhibitors might target. Overall, these data highlight a novel mechanism to treat cancers by leveraging cancer-specific phosphate dysregulation and further reinforce the Cancer Dependency Map as a powerful engine to uncover novel therapeutic vulnerabilities.
Citation Format: Daniel Bondeson, Brenton Paolella, Adhana Asfaw, Michael Rothberg, Thomas Skipper, Gabriel Mesa, Alfredo Gonzalez, Lauren E. Surface, Kentaro Ito, Mariya Kazachkova, William N. Colgan, Allie Warren, Joshua Dempster, J Michael Krill-Burger, Maria Ericsson, Andrew Tang, Iris Fung, Emily S. Chambers, Mai Abdusamad, Nancy Dumont, John Doench, Federica Piccioni, David Root, Jesse Boehm, William C. Hahn, Michael Mannstadt, James McFarland, Francisca Vazquez, Todd Golub. Phosphate dysregulation as a novel therapeutic strategy in ovarian and uterine cancers [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 1028.
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Affiliation(s)
| | | | - Adhana Asfaw
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
| | | | | | - Gabriel Mesa
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
| | | | | | - Kentaro Ito
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
| | | | | | - Allie Warren
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
| | | | | | | | - Andrew Tang
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
| | - Iris Fung
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
| | | | - Mai Abdusamad
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
| | - Nancy Dumont
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
| | - John Doench
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
| | | | - David Root
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
| | - Jesse Boehm
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
| | | | | | | | | | - Todd Golub
- 1The Broad Institute of MIT and Harvard, Cambridge, MA
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3
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Bondeson DP, Paolella BR, Asfaw A, Rothberg MV, Skipper TA, Langan C, Mesa G, Gonzalez A, Surface LE, Ito K, Kazachkova M, Colgan WN, Warren A, Dempster JM, Krill-Burger JM, Ericsson M, Tang AA, Fung I, Chambers ES, Abdusamad M, Dumont N, Doench JG, Piccioni F, Root DE, Boehm J, Hahn WC, Mannstadt M, McFarland JM, Vazquez F, Golub TR. Phosphate dysregulation via the XPR1-KIDINS220 protein complex is a therapeutic vulnerability in ovarian cancer. Nat Cancer 2022; 3:681-695. [PMID: 35437317 PMCID: PMC9246846 DOI: 10.1038/s43018-022-00360-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 03/04/2022] [Indexed: 12/13/2022]
Abstract
Despite advances in precision medicine, the clinical prospects for patients with ovarian and uterine cancers have not substantially improved. Here, we analyzed genome-scale CRISPR/Cas9 loss-of-function screens across 851 human cancer cell lines and found that frequent overexpression of SLC34A2 – encoding a phosphate importer – is correlated to sensitivity to loss of the phosphate exporter XPR1 in vitro and in vivo. In patient-derived tumor samples, we observed frequent PAX8-dependent overexpression of SLC34A2, XPR1 copy number amplifications, and XPR1 mRNA overexpression. Mechanistically, in SLC34A2-high cancer cell lines, genetic or pharmacologic inhibition of XPR1-dependent phosphate efflux leads to the toxic accumulation of intracellular phosphate. Finally, we show that XPR1 requires the novel partner protein KIDINS220 for proper cellular localization and activity, and that disruption of this protein complex results in acidic vacuolar structures preceding cell death. These data point to the XPR1:KIDINS220 complex and phosphate dysregulation as a therapeutic vulnerability in ovarian cancer. Golub and colleagues identify the phosphate exporter XPR1 as a therapeutic vulnerability in ovarian and uterine cancers, and show that phosphate efflux inhibition reduces tumor cell viability through accumulation of intracellular phosphate.
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Affiliation(s)
| | - Brenton R Paolella
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Merck Research Laboratories, Cambridge, MA, USA
| | - Adhana Asfaw
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | | | | | - Carly Langan
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Gabriel Mesa
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | | | - Lauren E Surface
- Endocrine Unit, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - Kentaro Ito
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | | | | | | | | | | | | | - Andrew A Tang
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Iris Fung
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | | | - Mai Abdusamad
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Nancy Dumont
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - John G Doench
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Federica Piccioni
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Merck Research Laboratories, Cambridge, MA, USA
| | - David E Root
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Jesse Boehm
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - William C Hahn
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Harvard Medical School, Boston, MA, USA.,Departments of Pediatric and Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Michael Mannstadt
- Endocrine Unit, Massachusetts General Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | | | | | - Todd R Golub
- Broad Institute of MIT and Harvard, Cambridge, MA, USA. .,Harvard Medical School, Boston, MA, USA. .,Departments of Pediatric and Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
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4
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Haikala HM, Lopez T, Köhler J, Eser PO, Xu M, Zeng Q, Teceno TJ, Ngo K, Zhao Y, Ivanova EV, Bertram AA, Leeper BA, Chambers ES, Adeni AE, Taus LJ, Kuraguchi M, Kirschmeier PT, Yu C, Shiose Y, Kamai Y, Qiu Y, Paweletz CP, Gokhale PC, Janne PA. EGFR inhibition enhances the cellular uptake and antitumor-activity of the HER3 antibody drug conjugate HER3-DXd. Cancer Res 2021; 82:130-141. [PMID: 34548332 DOI: 10.1158/0008-5472.can-21-2426] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/23/2021] [Accepted: 09/16/2021] [Indexed: 11/16/2022]
Abstract
Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKI) are the standard-of-care treatment for EGFR-mutant non-small cell lung cancers (NSCLC). However, most patients develop acquired drug resistance to EGFR TKIs. HER3 is a unique pseudokinase member of the ERBB family that functions by dimerizing with other ERBB family members (EGFR and HER2) and is frequently overexpressed in EGFR-mutant NSCLC. Although EGFR TKI resistance mechanisms do not lead to alterations in HER3, we hypothesized that targeting HER3 might improve efficacy of EGFR TKI. HER3-DXd is an antibody-drug conjugate (ADC) comprised of HER3-targeting antibody linked to a topoisomerase I inhibitor currently in clinical development. In this study, we evaluated the efficacy of HER3-DXd across a series of EGFR inhibitor-resistant, patient-derived xenografts and observed it to be broadly effective in HER3-expressing cancers. We further developed a preclinical strategy to enhance the efficacy of HER3-DXd through osimertinib pre-treatment, which increased membrane expression of HER3 and led to enhanced internalization and efficacy of HER3-DXd. The combination of osimertinib and HER3-DXd may be an effective treatment approach and should be evaluated in future clinical trials in EGFR-mutant NSCLC patients.
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Affiliation(s)
- Heidi M Haikala
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute
| | - Timothy Lopez
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute
| | - Jens Köhler
- Department of Medical Oncology, Dana-Farber Cancer Institute
| | - Pinar O Eser
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute
| | - Man Xu
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute
| | - Qing Zeng
- Department of Medical Oncology, Dana-Farber Cancer Institute
| | - Tyler J Teceno
- Robert and Renee Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute
| | - Kenneth Ngo
- Robert and Renee Belfer Center for Applied Cancer Science,, Dana-Farber Cancer Institute
| | - Yutong Zhao
- Department of Medical Oncology, Dana-Farber Cancer Institute
| | - Elena V Ivanova
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute
| | | | | | | | | | - Luke J Taus
- Medical Oncology, Dana-Farber Cancer Institute
| | - Mari Kuraguchi
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute
| | | | | | | | - Yasuki Kamai
- Oncology Research Laboratories I, Daiichi Sankyo Co., Ltd
| | - Yang Qiu
- Translational Science, Daiichi Sankyo (United States)
| | - Cloud P Paweletz
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute and Harvard Medical School
| | | | - Pasi A Janne
- Lowe Center for Thoracic Oncology, Department of Medical Oncology, Dana-Farber Cancer Institute
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5
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Eser PÖ, Paranal RM, Son J, Ivanova E, Kuang Y, Haikala HM, To C, Okoro JJ, Dholakia KH, Choi J, Eum Y, Ogino A, Missios P, Ercan D, Xu M, Poitras MJ, Wang S, Ngo K, Dills M, Yanagita M, Lopez T, Lin M, Tsai J, Floch N, Chambers ES, Heng J, Anjum R, Santucci AD, Michael K, Schuller AG, Cross D, Smith PD, Oxnard GR, Barbie DA, Sholl LM, Bahcall M, Palakurthi S, Gokhale PC, Paweletz CP, Daley GQ, Jänne PA. Oncogenic switch and single-agent MET inhibitor sensitivity in a subset of EGFR-mutant lung cancer. Sci Transl Med 2021; 13:eabb3738. [PMID: 34516823 PMCID: PMC8627689 DOI: 10.1126/scitranslmed.abb3738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Pınar Özden Eser
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA.,Harvard Medical School, Boston, MA 02115, USA
| | - Raymond M Paranal
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jieun Son
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Elena Ivanova
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Yanan Kuang
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Heidi M Haikala
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Ciric To
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Jeffrey J Okoro
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Kshiti H Dholakia
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jihyun Choi
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Yoonji Eum
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Atsuko Ogino
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Pavlos Missios
- Stem Cell Program, Boston Children's Hospital, Boston, MA 02115, USA
| | - Dalia Ercan
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Man Xu
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Michael J Poitras
- Experimental Therapeutics Core, Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Stephen Wang
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Kenneth Ngo
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Michael Dills
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Masahiko Yanagita
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Timothy Lopez
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Mika Lin
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jeanelle Tsai
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Nicolas Floch
- Oncology R&D, Bioscience, AstraZeneca, CRUK Cambridge Institute, Robinson Way, Cambridge CB2 0RE, UK
| | - Emily S Chambers
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Jennifer Heng
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Rana Anjum
- Bioscience, Oncology R&D, AstraZeneca, 25 Gatehouse Park, Waltham, MA 02451, USA
| | - Alison D Santucci
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Kesi Michael
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Alwin G Schuller
- Bioscience, Oncology R&D, AstraZeneca, 25 Gatehouse Park, Waltham, MA 02451, USA
| | - Darren Cross
- Global Medical Affairs, Oncology Business Unit, AstraZeneca, 136 Hills Road, Cambridge CB2 8PA, UK
| | - Paul D Smith
- Oncology R&D, Bioscience, AstraZeneca, CRUK Cambridge Institute, Robinson Way, Cambridge CB2 0RE, UK
| | - Geoffrey R Oxnard
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - David A Barbie
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA.,Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Lynette M Sholl
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Magda Bahcall
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA
| | - Sangeetha Palakurthi
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Prafulla C Gokhale
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Experimental Therapeutics Core, Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Cloud P Paweletz
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - George Q Daley
- Harvard Medical School, Boston, MA 02115, USA.,Stem Cell Program, Boston Children's Hospital, Boston, MA 02115, USA.,Harvard Stem Cell Institute, Cambridge, MA 02138, USA
| | - Pasi A Jänne
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA.,Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA 02215, USA
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6
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Köhler J, Zhao Y, Li J, Gokhale PC, Tiv HL, Knott AR, Wilkens MK, Soroko KM, Lin M, Ambrogio C, Musteanu M, Ogino A, Choi J, Bahcall M, Bertram AA, Chambers ES, Paweletz CP, Bhagwat SV, Manro JR, Tiu RV, Jänne PA. ERK Inhibitor LY3214996-Based Treatment Strategies for RAS-Driven Lung Cancer. Mol Cancer Ther 2021; 20:641-654. [PMID: 33536188 DOI: 10.1158/1535-7163.mct-20-0531] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 12/02/2020] [Accepted: 01/25/2021] [Indexed: 11/16/2022]
Abstract
RAS gene mutations are the most frequent oncogenic event in lung cancer. They activate multiple RAS-centric signaling networks among them the MAPK, PI3K, and RB pathways. Within the MAPK pathway, ERK1/2 proteins exert a bottleneck function for transmitting mitogenic signals and activating cytoplasmic and nuclear targets. In view of disappointing antitumor activity and toxicity of continuously applied MEK inhibitors in patients with KRAS-mutant lung cancer, research has recently focused on ERK1/2 proteins as therapeutic targets and on ERK inhibitors for their ability to prevent bypass and feedback pathway activation. Here, we show that intermittent application of the novel and selective ATP-competitive ERK1/2 inhibitor LY3214996 exerts single-agent activity in patient-derived xenograft (PDX) models of RAS-mutant lung cancer. Combination treatments were well tolerated and resulted in synergistic (ERKi plus PI3K/mTORi LY3023414) and additive (ERKi plus CDK4/6i abemaciclib) tumor growth inhibition in PDX models. Future clinical trials are required to investigate if intermittent ERK inhibitor-based treatment schedules can overcome toxicities observed with continuous MEK inhibition and-equally important-to identify biomarkers for patient stratification.
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Affiliation(s)
- Jens Köhler
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.
| | - Yutong Zhao
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Jiaqi Li
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Prafulla C Gokhale
- Experimental Therapeutics Core and Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Hong L Tiv
- Experimental Therapeutics Core and Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Aine R Knott
- Experimental Therapeutics Core and Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Margaret K Wilkens
- Experimental Therapeutics Core and Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Kara M Soroko
- Experimental Therapeutics Core and Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Mika Lin
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Chiara Ambrogio
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.,Department of Molecular Biotechnology and Health Science, Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Monica Musteanu
- Experimental Oncology, Molecular Oncology Program, CNIO, Madrid, Spain.,Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Complutense University of Madrid, Spain
| | - Atsuko Ogino
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Jihyun Choi
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Magda Bahcall
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Arrien A Bertram
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Emily S Chambers
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Cloud P Paweletz
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.,Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Shripad V Bhagwat
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Jason R Manro
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Ramon V Tiu
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana
| | - Pasi A Jänne
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts. .,Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.,Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
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7
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Ogino A, Choi J, Lin M, Wilkens MK, Calles A, Xu M, Adeni AE, Chambers ES, Capelletti M, Butaney M, Gray NS, Gokhale PC, Palakurthi S, Kirschmeier P, Oxnard GR, Sholl LM, Jänne PA. Genomic and pathological heterogeneity in clinically diagnosed small cell lung cancer in never/light smokers identifies therapeutically targetable alterations. Mol Oncol 2020; 15:27-42. [PMID: 32191822 PMCID: PMC7782083 DOI: 10.1002/1878-0261.12673] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/24/2020] [Accepted: 03/16/2020] [Indexed: 12/28/2022] Open
Abstract
Small-cell lung cancer (SCLC) occurs infrequently in never/former light smokers. We sought to study this rare clinical subset through next-generation sequencing (NGS) and by characterizing a representative patient-derived model. We performed targeted NGS, as well as comprehensive pathological evaluation, in 11 never/former light smokers with clinically diagnosed SCLC. We established a patient-derived model from one such patient (DFCI168) harboring an NRASQ61K mutation and characterized the sensitivity of this model to MEK and TORC1/2 inhibitors. Despite the clinical diagnosis of SCLC, the majority (8/11) of cases were either of nonpulmonary origin or of mixed histology and included atypical carcinoid (n = 1), mixed non-small-cell lung carcinoma and SCLC (n = 4), unspecified poorly differentiated carcinoma (n = 1), or small-cell carcinoma from different origins (n = 2). RB1 and TP53 mutations were found in four and five cases, respectively. Predicted driver mutations were detected in EGFR (n = 2), NRAS (n = 1), KRAS (n = 1), BRCA1 (n = 1), and ATM (n = 1), and one case harbored a TMPRSS2-ERG fusion. DFCI168 (NRASQ61K ) exhibited marked sensitivity to MEK inhibitors in vitro and in vivo. The combination of MEK and mTORC1/2 inhibitors synergized to prevent compensatory mTOR activation, resulting in prolonged growth inhibition in this model and in three other NRAS mutant lung cancer cell lines. SCLC in never/former light smokers is rare and is potentially a distinct disease entity comprised of oncogenic driver mutation-harboring carcinomas morphologically and/or clinically mimicking SCLC. Comprehensive pathologic review integrated with genomic profiling is critical in refining the diagnosis and in identifying potential therapeutic options.
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Affiliation(s)
- Atsuko Ogino
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Jihyun Choi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Mika Lin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Margaret K Wilkens
- Experimental Therapeutics Core, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Antonio Calles
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Man Xu
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Anika E Adeni
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Emily S Chambers
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Marzia Capelletti
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Mohit Butaney
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Nathanael S Gray
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA.,Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Prafulla C Gokhale
- Experimental Therapeutics Core, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Sangeetha Palakurthi
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Paul Kirschmeier
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Geoffrey R Oxnard
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.,Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Lynette M Sholl
- Department of Pathology, Brigham and Women's Hospital, Boston, MA, USA
| | - Pasi A Jänne
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.,Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, MA, USA.,Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
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8
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Cooper AJ, Kobayashi Y, Kim D, Clifford SE, Kravets S, Dahlberg SE, Chambers ES, Li J, Rangachari D, Nguyen T, Costa DB, Rabin MS, Wagle N, Sholl LM, Jänne PA, Oxnard GR. Identification of a RAS-activating TMEM87A-RASGRF1 Fusion in an Exceptional Responder to Sunitinib with Non-Small Cell Lung Cancer. Clin Cancer Res 2020; 26:4072-4079. [PMID: 32312893 PMCID: PMC7415568 DOI: 10.1158/1078-0432.ccr-20-0397] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/24/2020] [Accepted: 04/10/2020] [Indexed: 11/16/2022]
Abstract
PURPOSE We pursued genomic analysis of an exceptional responder with non-small cell lung cancer (NSCLC) through a multi-platform effort to discover novel oncogenic targets. EXPERIMENTAL DESIGN In this open-label, single-arm phase II study (NCT01829217), an enriched cohort of patients with advanced NSCLC was treated with the multi-kinase inhibitor sunitinib. The primary endpoint was objective response rate. Tissue was collected for multi-platform genomic analysis of responders, and a candidate oncogene was validated using in vitro models edited by CRISPR-Cas9. RESULTS Of 13 patients enrolled, 1 patient (8%), a never smoker, had a partial response lasting 33 months. Genomic analysis of the responder identified no oncogenic variant using multi-platform DNA analysis including hotspot allelotyping, massively parallel hybrid-capture next-generation sequencing, and whole-exome sequencing. However, bulk RNA-sequencing (RNA-seq) revealed a novel fusion, TMEM87A-RASGRF1, with high overexpression of the fusion partners. RASGRF1 encodes a guanine exchange factor which activates RAS from GDP-RAS to GTP-RAS. Oncogenicity was demonstrated in NIH/3T3 models with intrinsic TMEM87A-RASGRF1 fusion. In addition, activation of MAPK was shown in PC9 models edited to express this fusion, although sensitivity to MAPK inhibition was seen without apparent sensitivity to sunitinib. CONCLUSIONS Sunitinib exhibited limited activity in this enriched cohort of patients with advanced NSCLC. Nonetheless, we find that RNA-seq of exceptional responders represents a potentially underutilized opportunity to identify novel oncogenic targets including oncogenic activation of RASGRF1.
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Affiliation(s)
- Alissa J Cooper
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Yoshihisa Kobayashi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Dewey Kim
- The Broad Institute of MIT and Harvard, Cambridge, Massachusetts
| | - Sarah E Clifford
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Sasha Kravets
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Suzanne E Dahlberg
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Emily S Chambers
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Jiaqi Li
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Deepa Rangachari
- Division of Medical Oncology, Department of Medicine, Beth Israel Deaconess Medical Center (a member of Beth Israel Lahey Health), Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Tom Nguyen
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Daniel B Costa
- Division of Medical Oncology, Department of Medicine, Beth Israel Deaconess Medical Center (a member of Beth Israel Lahey Health), Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Michael S Rabin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Nikhil Wagle
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- The Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Lynette M Sholl
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Pasi A Jänne
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Geoffrey R Oxnard
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
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9
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Guerra SL, Maertens O, Kuzmickas R, De Raedt T, Adeyemi RO, Guild CJ, Guillemette S, Redig AJ, Chambers ES, Xu M, Tiv H, Santagata S, Jänne PA, Elledge SJ, Cichowski K. A Deregulated HOX Gene Axis Confers an Epigenetic Vulnerability in KRAS-Mutant Lung Cancers. Cancer Cell 2020; 37:705-719.e6. [PMID: 32243838 PMCID: PMC10805385 DOI: 10.1016/j.ccell.2020.03.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 11/12/2019] [Accepted: 03/03/2020] [Indexed: 01/02/2023]
Abstract
While KRAS mutations are common in non-small cell lung cancer (NSCLC), effective treatments are lacking. Here, we report that half of KRAS-mutant NSCLCs aberrantly express the homeobox protein HOXC10, largely due to unappreciated defects in PRC2, which confers sensitivity to combined BET/MEK inhibitors in xenograft and PDX models. Efficacy of the combination is dependent on suppression of HOXC10 by BET inhibitors. We further show that HOXC10 regulates the expression of pre-replication complex (pre-RC) proteins in sensitive tumors. Accordingly, BET/MEK inhibitors suppress pre-RC proteins in cycling cells, triggering stalled replication, DNA damage, and death. These studies reveal a promising therapeutic strategy for KRAS-mutant NSCLCs, identify a predictive biomarker of response, and define a subset of NSCLCs with a targetable epigenetic vulnerability.
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Affiliation(s)
- Stephanie L Guerra
- Genetics Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Ophélia Maertens
- Genetics Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Ryan Kuzmickas
- Genetics Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Thomas De Raedt
- Genetics Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Richard O Adeyemi
- Genetics Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Caroline J Guild
- Genetics Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Shawna Guillemette
- Genetics Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Amanda J Redig
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Emily S Chambers
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Man Xu
- Belfer Center for Applied Cancer Science, Boston, MA 02115, USA
| | - Hong Tiv
- Experimental Therapeutic Core, Dana-Farber Cancer Institute, Boston, MA 02115, USA
| | - Sandro Santagata
- Harvard Medical School, Boston, MA 02115, USA; Departments of Pathology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Ludwig Center at Harvard, Harvard Medical School, Boston, MA 02115, USA
| | - Pasi A Jänne
- Harvard Medical School, Boston, MA 02115, USA; Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA; Belfer Center for Applied Cancer Science, Boston, MA 02115, USA
| | - Stephen J Elledge
- Genetics Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Ludwig Center at Harvard, Harvard Medical School, Boston, MA 02115, USA; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Howard Hughes Medical Institute, 77 Avenue Louis Pasteur, Boston, MA 02115, USA
| | - Karen Cichowski
- Genetics Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA; Ludwig Center at Harvard, Harvard Medical School, Boston, MA 02115, USA.
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10
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Ivanova E, Kuraguchi M, Xu M, Portell AJ, Taus L, Diala I, Lalani AS, Choi J, Chambers ES, Li S, Liu S, Chen T, Barbie TU, Oxnard GR, Haworth JJ, Wong KK, Dahlberg SE, Aref AA, Barbie DA, Bahcall M, Paweletz CP, Jänne PA. Use of Ex Vivo Patient-Derived Tumor Organotypic Spheroids to Identify Combination Therapies for HER2 Mutant Non-Small Cell Lung Cancer. Clin Cancer Res 2020; 26:2393-2403. [PMID: 32034078 DOI: 10.1158/1078-0432.ccr-19-1844] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 12/30/2019] [Accepted: 02/04/2020] [Indexed: 11/16/2022]
Abstract
PURPOSE Evaluating drug responses using primary patient-derived cells ex vivo represents a potentially rapid and efficient approach to screening for new treatment approaches. Here, we sought to identify neratinib combinations in HER2 mutant non-small cell lung cancer (NSCLC) patient xenograft-derived organotypic spheroids (XDOTS) using a short-term ex vivo system. EXPERIMENTAL DESIGN We generated two HER2-mutant NSCLC PDX models [DFCI359 (HER2 exon19 755_757LREdelinsRP) and DFCI315 (HER2 exon20 V777_G778insGSP)] and used the PDX tumors to generate XDOTS. Tumor spheroids were grown in a microfluidic device and treated ex vivo with neratinib-based drug combinations. Live/dead quantification was performed by dual-labeling deconvolution fluorescence microscopy. The most efficacious ex vivo combination was subsequently validated in vivo using the DFCI359 and DFCI315 PDXs and a HER2 YVMA genetically engineered mouse model. RESULTS Both neratinib and afatinib, but not gefitinib, induced cell death in DFCI359 XDOTS. The combinations of neratinib/trastuzumab and neratinib/temsirolimus enhanced the therapeutic benefit of neratinib alone in DFCI315 and DFCI359. The combination of neratinib and trastuzumab in vivo was more effective compared with single-agent neratinib or trastuzumab and was associated with more robust inhibition of HER2 and downstream signaling. CONCLUSIONS The XDOTS platform can be used to evaluate therapies and therapeutic combinations ex vivo using PDX tumors. This approach may accelerate the identification and clinical development of therapies for targets with no or few existing models and/or therapies.
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Affiliation(s)
- Elena Ivanova
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Belfer Center for Applied Cancer Science, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Mari Kuraguchi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Belfer Center for Applied Cancer Science, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Man Xu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Belfer Center for Applied Cancer Science, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Andrew J Portell
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Belfer Center for Applied Cancer Science, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Luke Taus
- Belfer Center for Applied Cancer Science, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Irmina Diala
- Puma Biotechnology Inc., Los Angeles, California
| | | | - Jihyun Choi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Emily S Chambers
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Shuai Li
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Shengwu Liu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Ting Chen
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Thanh U Barbie
- Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts
| | - Geoffrey R Oxnard
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Lowe Center for Thoracic Oncology, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Jacob J Haworth
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Kwok-Kin Wong
- Department of Medicine, Division of Hematology and Medical Oncology, New York University Langone Medical Center, New York, New York
| | - Suzanne E Dahlberg
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Amir A Aref
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - David A Barbie
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Belfer Center for Applied Cancer Science, Dana Farber Cancer Institute, Boston, Massachusetts.,Lowe Center for Thoracic Oncology, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Magda Bahcall
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts.,Belfer Center for Applied Cancer Science, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Cloud P Paweletz
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts. .,Belfer Center for Applied Cancer Science, Dana Farber Cancer Institute, Boston, Massachusetts
| | - Pasi A Jänne
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts. .,Belfer Center for Applied Cancer Science, Dana Farber Cancer Institute, Boston, Massachusetts.,Lowe Center for Thoracic Oncology, Dana Farber Cancer Institute, Boston, Massachusetts
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11
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Bahcall M, Awad MM, Sholl LM, Wilson FH, Xu M, Wang S, Palakurthi S, Choi J, Ivanova EV, Leonardi GC, Ulrich BC, Paweletz CP, Kirschmeier PT, Watanabe M, Baba H, Nishino M, Nagy RJ, Lanman RB, Capelletti M, Chambers ES, Redig AJ, VanderLaan PA, Costa DB, Imamura Y, Jänne PA. Amplification of Wild-type KRAS Imparts Resistance to Crizotinib in MET Exon 14 Mutant Non-Small Cell Lung Cancer. Clin Cancer Res 2018; 24:5963-5976. [PMID: 30072474 PMCID: PMC6279568 DOI: 10.1158/1078-0432.ccr-18-0876] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/19/2018] [Accepted: 07/23/2018] [Indexed: 01/06/2023]
Abstract
PURPOSE MET inhibitors can be effective therapies in patients with MET exon 14 (METex14) mutant non-small cell lung cancer (NSCLC). However, long-term efficacy is limited by the development of drug resistance. In this study, we characterize acquired amplification of wild-type (WT) KRAS as a molecular mechanism behind crizotinib resistance in three cases of METex14-mutant NSCLC and propose a combination therapy to target it. EXPERIMENTAL DESIGN The patient-derived cell line and xenograft (PDX) DFCI358 were established from a crizotinib-resistant METex14-mutant patient tumor with massive focal amplification of WT KRAS. To characterize the mechanism of KRAS-mediated resistance, molecular signaling was analyzed in the parental cell line and its KRAS siRNA-transfected derivative. Sensitivity of the cell line to ligand stimulation was assessed and KRAS-dependent expression of EGFR ligands was quantified. Drug combinations were screened for efficacy in vivo and in vitro using viability and apoptotic assays. RESULTS KRAS amplification is a recurrent genetic event in crizotinib-resistant METex14-mutant NSCLC. The key characteristics of this genetic signature include uncoupling MET from downstream effectors, relative insensitivity to dual MET/MEK inhibition due to compensatory induction of PI3K signaling, KRAS-induced expression of EGFR ligands and hypersensitivity to ligand-dependent and independent activation, and reliance on PI3K signaling upon MET inhibition. CONCLUSIONS Using patient-derived cell line and xenografts, we characterize the mechanism of crizotinib resistance mediated by KRAS amplification in METex14-mutant NSCLC and demonstrate the superior efficacy of the dual MET/PI3K inhibition as a therapeutic strategy addressing this resistance mechanism.
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Affiliation(s)
- Magda Bahcall
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Mark M Awad
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Lynette M Sholl
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Frederick H Wilson
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Man Xu
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Stephen Wang
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Sangeetha Palakurthi
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Jihyun Choi
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Elena V Ivanova
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Giulia C Leonardi
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Bryan C Ulrich
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Cloud P Paweletz
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Paul T Kirschmeier
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Masayuki Watanabe
- Department of Gastroenterological Surgery, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hideo Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Mizuki Nishino
- Department of Radiology, Brigham And Women's Hospital and Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | | | | | - Marzia Capelletti
- Center for Hematologic Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Emily S Chambers
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
| | - Amanda J Redig
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Paul A VanderLaan
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
| | - Daniel B Costa
- Thoracic Oncology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
- Hematology/Oncology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts
| | - Yu Imamura
- Department of Gastroenterological Surgery, The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Pasi A Jänne
- Lowe Center for Thoracic Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, Massachusetts.
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
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12
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Awad MM, Bahcall M, Sholl LM, Wilson FH, Paweletz C, Capelletti M, Leonardi GC, Watanabe M, Baba H, Chambers ES, Redig AJ, Nishino M, VanderLaan PA, Costa DB, Imamura Y, Janne PA. Mechanisms of acquired resistance to MET tyrosine kinase inhibitors (TKIs) in MET exon 14 (METex14) mutant non-small cell lung cancer (NSCLC). J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.9069] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | - Masayuki Watanabe
- Department of Gastroenterological Center, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Hideo Baba
- Department of Gastroenterological Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | | | | | | | - Paul A VanderLaan
- Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA
| | | | - Yu Imamura
- Department of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
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13
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Chambers ES, Nanzer AM, Pfeffer PE, Richards DF, Martineau AR, Griffiths CJ, Corrigan CJ, Hawrylowicz CM. Dendritic cell phenotype in severe asthma reflects clinical responsiveness to glucocorticoids. Clin Exp Allergy 2017; 48:13-22. [PMID: 29130617 PMCID: PMC5767735 DOI: 10.1111/cea.13061] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 09/11/2017] [Accepted: 10/24/2017] [Indexed: 11/29/2022]
Abstract
Background Subsets of patients with severe asthma remain symptomatic despite prolonged, high‐dose glucocorticoid therapy. We hypothesized that the clinical glucocorticoid sensitivity of these asthmatics is reflected in differences in peripheral blood dendritic cell subsets. Objective To compare peripheral blood leucocyte populations using flow cytometry at baseline and after 2 weeks of systemic glucocorticoid (steroid) treatment to identify immunological differences between steroid‐sensitive (SS) and steroid‐resistant (SR) asthmatics. Methods Adult severe asthmatics (SS n = 12; SR n = 23) were assessed for their response to 2 weeks of therapy with oral prednisolone. Peripheral blood was obtained before and after therapy and stained for lymphocyte (CD3, CD19, CD4, CD8 and Foxp3) and dendritic cell markers (Lineage negative [CD3, CD14, CD16, CD19, CD20, CD56], HLA‐DR+, CD304, CD11c, ILT3 and CD86). Results A higher median frequency of myeloid DCs (mDCs) but not plasmacytoid DCs (pDCs) was observed in the blood of SR as compared to SS asthmatics (P = .03). Glucocorticoid therapy significantly increased median B cell, but not T cell numbers in both cohorts, with a trend for increased numbers of Foxp3+ Tregs in SS (P = .07), but not SR subjects. Oral prednisolone therapy significantly reduced the median numbers and frequencies of total DCs and pDCs in both SS and SR asthmatics. Interestingly, the expression of HLA‐DR and ILT3 was also reduced on pDCs in all patients. In contrast, therapy increased the median frequency of mDCs in SS, but reduced it in SR asthmatics. Conclusions Myeloid DC frequency is elevated in SR compared with SS asthmatics, and mDC shows a differential response to oral prednisolone therapy.
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Affiliation(s)
- E S Chambers
- MRC and Asthma-UK Centre for Allergic Mechanisms in Asthma, King's College London, London, UK
| | - A M Nanzer
- MRC and Asthma-UK Centre for Allergic Mechanisms in Asthma, King's College London, London, UK.,Asthma UK Centre for Applied Research, Centre for Primary Care and Public Health, Blizard Institute, Queen Mary, University of London, London, UK
| | - P E Pfeffer
- MRC and Asthma-UK Centre for Allergic Mechanisms in Asthma, King's College London, London, UK
| | - D F Richards
- MRC and Asthma-UK Centre for Allergic Mechanisms in Asthma, King's College London, London, UK
| | - A R Martineau
- Asthma UK Centre for Applied Research, Centre for Primary Care and Public Health, Blizard Institute, Queen Mary, University of London, London, UK
| | - C J Griffiths
- Asthma UK Centre for Applied Research, Centre for Primary Care and Public Health, Blizard Institute, Queen Mary, University of London, London, UK
| | - C J Corrigan
- MRC and Asthma-UK Centre for Allergic Mechanisms in Asthma, King's College London, London, UK
| | - C M Hawrylowicz
- MRC and Asthma-UK Centre for Allergic Mechanisms in Asthma, King's College London, London, UK
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Nishino M, Ramaiya NH, Chambers ES, Adeni AE, Hatabu H, Jänne PA, Hodi FS, Awad MM. Immune-related response assessment during PD-1 inhibitor therapy in advanced non-small-cell lung cancer patients. J Immunother Cancer 2016; 4:84. [PMID: 28018599 PMCID: PMC5168591 DOI: 10.1186/s40425-016-0193-2] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/11/2016] [Indexed: 02/06/2023] Open
Abstract
Background Tumor response characteristics using immune-related RECIST1.1 (irRECIST1.1) in advanced non-small-cell lung cancer (NSCLC) patients treated with nivolumab monotherapy in the clinical setting have not been previously described with a direct comparison with the assessments according to the conventional RECIST1.1. Methods Fifty-six advanced NSCLC patients treated with nivolumab monotherapy after its Food and Drug Administration (FDA) approval were retrospectively studied. Tumor burden was quantified on serial CT scans during therapy using irRECIST1.1, which uses unidimensional measurements and includes new lesion measurements in total tumor burden. Response assessments by irRECIST1.1 were compared with assessments by RECIST1.1. Responses of individual lesions in different organs were also compared. Results Tumor burden change at best overall response ranged from −66.8 to +278.1% (median: +3.9%). Response rate was 14% (8/56; 8 partial responses, 0 complete responses) by irRECIST1.1 and by RECIST1.1. Time-to-progression (TTP) by irRECIST1.1 was longer than TTP by RECIST1.1 (median TTP: not reached vs. 1.9 months, respectively). No patients experienced pseudoprogression during the study. Among 128 target lesions, the lesion-based size change at best response differed significantly across different organs, with adrenal lesions and lymph nodes having greater size decrease, followed by lung, while liver and other miscellaneous lesions had lesser degree of size decrease (p = 0.002). Conclusions Immune-related response evaluations using irRECIST1.1 in advanced NSCLC patients treated with nivolumab resulted in the identical response rate and longer TTP compared to RECIST1.1. No pseudoprogression cases were observed during the study. Adrenal lesions and lymph nodes were more responsive and liver lesions were less responsive to nivolumab. Electronic supplementary material The online version of this article (doi:10.1186/s40425-016-0193-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mizuki Nishino
- Department of Radiology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, 450 Brookline Ave., Boston, MA 02215 USA
| | - Nikhil H Ramaiya
- Department of Radiology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, 450 Brookline Ave., Boston, MA 02215 USA
| | - Emily S Chambers
- Department of Medical Oncology and Department of Medicine Dana-Farber Cancer Institute and Brigham and Women's Hospital, 450 Brookline Ave., Boston, MA 02215 USA
| | - Anika E Adeni
- Department of Medical Oncology and Department of Medicine Dana-Farber Cancer Institute and Brigham and Women's Hospital, 450 Brookline Ave., Boston, MA 02215 USA
| | - Hiroto Hatabu
- Department of Radiology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, 450 Brookline Ave., Boston, MA 02215 USA
| | - Pasi A Jänne
- Department of Medical Oncology and Department of Medicine Dana-Farber Cancer Institute and Brigham and Women's Hospital, 450 Brookline Ave., Boston, MA 02215 USA
| | - F Stephen Hodi
- Department of Medical Oncology and Department of Medicine Dana-Farber Cancer Institute and Brigham and Women's Hospital, 450 Brookline Ave., Boston, MA 02215 USA
| | - Mark M Awad
- Department of Medical Oncology and Department of Medicine Dana-Farber Cancer Institute and Brigham and Women's Hospital, 450 Brookline Ave., Boston, MA 02215 USA
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Redig AJ, Chambers ES, Lydon CA, Dahlberg SE, Alden RS, Janne PA. Genomic complexity in KRAS mutant non-small cell lung cancer (NSCLC) from never/light-smokers v smokers. J Clin Oncol 2016. [DOI: 10.1200/jco.2016.34.15_suppl.9087] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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16
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Robinson SL, Chambers ES, Fletcher G, Wallis GA. Lipolytic Markers, Insulin and Resting Fat Oxidation are Associated with Maximal Fat Oxidation. Int J Sports Med 2016; 37:607-13. [PMID: 27116342 DOI: 10.1055/s-0042-100291] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The maximal capacity to oxidize fat during exercise (MFO) is associated with 24-h fat balance and insulin sensitivity. Understanding factors that influence MFO could have implications for metabolic health. We investigated relationships between selected plasma metabolites, hormones and overnight-fasted resting fat oxidation rates (Resting), with MFO. Resting fat oxidation and MFO was measured in 57 men with blood collected at rest and during exercise. Plasma glycerol (R=0.39, P=0.033), non-esterified fatty acids (NEFA: R=0.27, P=0.030) and insulin (R=- 0.36, P=0.007) measured at MFO correlated with MFO; only glycerol remained correlated when controlled for resting concentrations (R=0.36, P=0.008). The change in glycerol from rest to MFO correlated with exercise-induced fat oxidation (R=0.32, P=0.012). V˙O 2max correlated with resting fat oxidation (R=0.44, P=0.001) and MFO (R=0.52, P<0.001). Resting fat oxidation correlated with MFO (R=0.55, P<0.001); this remained when controlled for V˙O 2max (R=0.41, P=0.001). This study reports weak-to-moderate, albeit significant, relationships between plasma lipolytic markers, insulin and resting overnight-fasted fat oxidation with MFO and shows the plasma glycerol response to uniquely reflect exercise-induced fat oxidation. V˙O 2max correlates with fat oxidation but the relationship can be dissociated. Interventions to increase fat oxidation for optimal metabolic health would benefit from, but are not reliant on, increases in V˙O 2max.
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Affiliation(s)
- S L Robinson
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom of Great Britain and Northern Ireland
| | - E S Chambers
- Nutrition and Dietetic Research Group, Imperial College London, London, United Kingdom of Great Britain and Northern Ireland
| | - G Fletcher
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom of Great Britain and Northern Ireland
| | - G A Wallis
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom of Great Britain and Northern Ireland
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17
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Nishino M, Chambers ES, Chong CR, Ramaiya NH, Gray SW, Marcoux JP, Hatabu H, Jänne PA, Hodi FS, Awad MM. Anti-PD-1 Inhibitor-Related Pneumonitis in Non-Small Cell Lung Cancer. Cancer Immunol Res 2016; 4:289-93. [PMID: 26865455 DOI: 10.1158/2326-6066.cir-15-0267] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 01/04/2016] [Indexed: 12/28/2022]
Abstract
The recent approval of two PD-1 inhibitors for the treatment of non-small cell lung cancer (NSCLC) has rapidly led to the widespread use of these agents in oncology practices. Pneumonitis has been recognized as a potentially life-threatening adverse event among NSCLC patients treated with PD-1 inhibitors; however, the detailed clinical and radiographic manifestations of this entity remain to be described. We report on two cases of anti-PD-1 pneumonitis in advanced NSCLC patients treated with nivolumab after its FDA approval. Both patients presented with ground-glass and reticular opacities and consolidations in a peripheral distribution on CT, demonstrating a radiographic pattern of cryptogenic organizing pneumonia. Consolidations were extensive and rapidly developed within 8 weeks of therapy in both cases. Both patients were treated with corticosteroids with subsequent improvement of respiratory symptoms and radiographic findings. One patient experienced recurrent pneumonitis after completing corticosteroid taper, or a "pneumonitis flare," in the absence of nivolumab retreatment, with subsequent improvement upon corticosteroid readministration. With the increasing use of immune checkpoint inhibitors in a growing number of tumor types, awareness of the radiographic and clinical manifestations of PD-1 inhibitor-related pneumonitis will be critical for the prompt diagnosis and management of this potentially serious adverse event.
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Affiliation(s)
- Mizuki Nishino
- Department of Radiology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts.
| | - Emily S Chambers
- Department of Medical Oncology and Department of Medicine, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, Massachusetts
| | - Curtis R Chong
- Department of Medical Oncology and Department of Medicine, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, Massachusetts
| | - Nikhil H Ramaiya
- Department of Radiology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Stacy W Gray
- Department of Medical Oncology and Department of Medicine, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, Massachusetts
| | - J Paul Marcoux
- Department of Medical Oncology and Department of Medicine, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, Massachusetts
| | - Hiroto Hatabu
- Department of Radiology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Pasi A Jänne
- Department of Medical Oncology and Department of Medicine, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, Massachusetts
| | - F Stephen Hodi
- Department of Medical Oncology and Department of Medicine, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, Massachusetts
| | - Mark M Awad
- Department of Medical Oncology and Department of Medicine, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, Massachusetts
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Nanzer AM, Chambers ES, Richards DF, Martineau AR, Griffiths CJ, Corrigan C, Hawrylowicz CM. P193 A role for active Vitamin D in steroid resistant asthma patients who have enhanced production of IL-17A and reduced IL-10. Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
Exercise studies have suggested that the presence of carbohydrate in the human mouth activates regions of the brain that can enhance exercise performance but direct evidence of such a mechanism is limited. The first aim of the present study was to observe how rinsing the mouth with solutions containing glucose and maltodextrin, disguised with artificial sweetener, would affect exercise performance. The second aim was to use functional magnetic resonance imaging (fMRI) to identify the brain regions activated by these substances. In Study 1A, eight endurance-trained cyclists (VO2max 60.8 +/- 4.1 ml kg(-1) min(-1)) completed a cycle time trial (total work = 914 +/- 29 kJ) significantly faster when rinsing their mouths with a 6.4% glucose solution compared with a placebo containing saccharin (60.4 +/- 3.7 and 61.6 +/- 3.8 min, respectively, P = 0.007). The corresponding fMRI study (Study 1B) revealed that oral exposure to glucose activated reward-related brain regions, including the anterior cingulate cortex and striatum, which were unresponsive to saccharin. In Study 2A, eight endurance-trained cyclists (VO2max 57.8 +/- 3.2 ml kg(-1) min(-1)) tested the effect of rinsing with a 6.4% maltodextrin solution on exercise performance, showing it to significantly reduce the time to complete the cycle time trial (total work = 837 +/- 68 kJ) compared to an artificially sweetened placebo (62.6 +/- 4.7 and 64.6 +/- 4.9 min, respectively, P = 0.012). The second neuroimaging study (Study 2B) compared the cortical response to oral maltodextrin and glucose, revealing a similar pattern of brain activation in response to the two carbohydrate solutions, including areas of the insula/frontal operculum, orbitofrontal cortex and striatum. The results suggest that the improvement in exercise performance that is observed when carbohydrate is present in the mouth may be due to the activation of brain regions believed to be involved in reward and motor control. The findings also suggest that there may be a class of so far unidentified oral receptors that respond to carbohydrate independently of those for sweetness.
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Affiliation(s)
- E S Chambers
- School of Sport and Exercise Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
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