1
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Zaidi S, Park J, Chan JM, Roudier MP, Zhao JL, Gopalan A, Wadosky KM, Patel RA, Sayar E, Karthaus WR, Henry Kates D, Chaudhary O, Xu T, Masilionis I, Mazutis L, Chaligné R, Obradovic A, Linkov I, Barlas A, Jungbluth A, Rekhtman N, Silber J, Manova–Todorova K, Watson PA, True LD, Morrissey CM, Scher HI, Rathkopf D, Morris MJ, Goodrich DW, Choi J, Nelson PS, Haffner MC, Sawyers CL. Single Cell Analysis of Treatment-Resistant Prostate Cancer: Implications of Cell State Changes for Cell Surface Antigen Targeted Therapies. bioRxiv 2024:2024.04.09.588340. [PMID: 38645034 PMCID: PMC11030323 DOI: 10.1101/2024.04.09.588340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Targeting cell surface molecules using radioligand and antibody-based therapies has yielded considerable success across cancers. However, it remains unclear how the expression of putative lineage markers, particularly cell surface molecules, varies in the process of lineage plasticity, wherein tumor cells alter their identity and acquire new oncogenic properties. A notable example of lineage plasticity is the transformation of prostate adenocarcinoma (PRAD) to neuroendocrine prostate cancer (NEPC)--a growing resistance mechanism that results in the loss of responsiveness to androgen blockade and portends dismal patient survival. To understand how lineage markers vary across the evolution of lineage plasticity in prostate cancer, we applied single cell analyses to 21 human prostate tumor biopsies and two genetically engineered mouse models, together with tissue microarray analysis (TMA) on 131 tumor samples. Not only did we observe a higher degree of phenotypic heterogeneity in castrate-resistant PRAD and NEPC than previously anticipated, but also found that the expression of molecules targeted therapeutically, namely PSMA, STEAP1, STEAP2, TROP2, CEACAM5, and DLL3, varied within a subset of gene-regulatory networks (GRNs). We also noted that NEPC and small cell lung cancer (SCLC) subtypes shared a set of GRNs, indicative of conserved biologic pathways that may be exploited therapeutically across tumor types. While this extreme level of transcriptional heterogeneity, particularly in cell surface marker expression, may mitigate the durability of clinical responses to novel antigen-directed therapies, its delineation may yield signatures for patient selection in clinical trials, potentially across distinct cancer types.
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Affiliation(s)
- Samir Zaidi
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Department of Genitourinary Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Jooyoung Park
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Korea
| | - Joseph M. Chan
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Program for Computational and Systems Biology, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | | | | | - Anuradha Gopalan
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Kristine M. Wadosky
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Radhika A. Patel
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
| | - Erolcan Sayar
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
| | - Wouter R. Karthaus
- Swiss Institute for Experimental Cancer Research (ISREC). School of Life Sciences. EPFL, 1015 Lausanne, Switzerland
| | - D. Henry Kates
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ojasvi Chaudhary
- Program for Computational and Systems Biology, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Tianhao Xu
- Program for Computational and Systems Biology, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ignas Masilionis
- Program for Computational and Systems Biology, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Linas Mazutis
- Program for Computational and Systems Biology, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ronan Chaligné
- Program for Computational and Systems Biology, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Aleksandar Obradovic
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY, 10032, USA
| | - Irina Linkov
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Afsar Barlas
- Molecular Cytology Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Achim Jungbluth
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Natasha Rekhtman
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Joachim Silber
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Katia Manova–Todorova
- Molecular Cytology Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Philip A. Watson
- Research Outreach and Compliance, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Lawrence D. True
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
| | - Colm M. Morrissey
- Department of Urology, University of Washington, Seattle, WA 98195, USA
| | - Howard I. Scher
- Department of Genitourinary Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Dana Rathkopf
- Department of Genitourinary Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Michael J. Morris
- Department of Genitourinary Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - David W. Goodrich
- Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - Jungmin Choi
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Korea
| | - Peter S. Nelson
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
| | - Michael C. Haffner
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA 98195, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
| | - Charles L. Sawyers
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Howard Hughes Medical Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
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Mandl A, Jasmine S, Krueger T, Kumar R, Coleman IM, Dalrymple SL, Antony L, Rosen DM, Jing Y, Hanratty B, Patel RA, Jin-Yih L, Dias J, Celatka CA, Tapper AE, Kleppe M, Kanayama M, Speranzini V, Wang YZ, Luo J, Corey E, Sena LA, Casero RA, Lotan T, Trock BJ, Kachhap SK, Denmeade SR, Carducci MA, Mattevi A, Haffner MC, Nelson PS, Rienhoff HY, Isaacs JT, Brennen WN. LSD1 inhibition suppresses ASCL1 and de-represses YAP1 to drive potent activity against neuroendocrine prostate cancer. bioRxiv 2024:2024.01.17.576106. [PMID: 38328141 PMCID: PMC10849473 DOI: 10.1101/2024.01.17.576106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Lysine-specific demethylase 1 (LSD1 or KDM1A ) has emerged as a critical mediator of tumor progression in metastatic castration-resistant prostate cancer (mCRPC). Among mCRPC subtypes, neuroendocrine prostate cancer (NEPC) is an exceptionally aggressive variant driven by lineage plasticity, an adaptive resistance mechanism to androgen receptor axis-targeted therapies. Our study shows that LSD1 expression is elevated in NEPC and associated with unfavorable clinical outcomes. Using genetic approaches, we validated the on-target effects of LSD1 inhibition across various models. We investigated the therapeutic potential of bomedemstat, an orally bioavailable, irreversible LSD1 inhibitor with low nanomolar potency. Our findings demonstrate potent antitumor activity against CRPC models, including tumor regressions in NEPC patient-derived xenografts. Mechanistically, our study uncovers that LSD1 inhibition suppresses the neuronal transcriptional program by downregulating ASCL1 through disrupting LSD1:INSM1 interactions and de-repressing YAP1 silencing. Our data support the clinical development of LSD1 inhibitors for treating CRPC - especially the aggressive NE phenotype. Statement of Significance Neuroendocrine prostate cancer presents a clinical challenge due to the lack of effective treatments. Our research demonstrates that bomedemstat, a potent and selective LSD1 inhibitor, effectively combats neuroendocrine prostate cancer by downregulating the ASCL1- dependent NE transcriptional program and re-expressing YAP1.
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3
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Patel RA, Sayar E, Coleman I, Roudier MP, Hanratty B, Low JY, Jaiswal N, Ajkunic A, Dumpit R, Ercan C, Salama N, O’Brien VP, Isaacs WB, Epstein JI, De Marzo AM, Trock BJ, Luo J, Brennen WN, Tretiakova M, Vakar-Lopez F, True LD, Goodrich DW, Corey E, Morrissey C, Nelson PS, Hurley PJ, Gulati R, Haffner MC. Characterization of HOXB13 expression patterns in localized and metastatic castration-resistant prostate cancer. J Pathol 2024; 262:105-120. [PMID: 37850574 PMCID: PMC10871027 DOI: 10.1002/path.6216] [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: 05/12/2023] [Revised: 08/16/2023] [Accepted: 09/08/2023] [Indexed: 10/19/2023]
Abstract
HOXB13 is a key lineage homeobox transcription factor that plays a critical role in the differentiation of the prostate gland. Several studies have suggested that HOXB13 alterations may be involved in prostate cancer development and progression. Despite its potential biological relevance, little is known about the expression of HOXB13 across the disease spectrum of prostate cancer. To this end, we validated a HOXB13 antibody using genetic controls and investigated HOXB13 protein expression in murine and human developing prostates, localized prostate cancers, and metastatic castration-resistant prostate cancers. We observed that HOXB13 expression increases during later stages of murine prostate development. All localized prostate cancers showed HOXB13 protein expression. Interestingly, lower HOXB13 expression levels were observed in higher-grade tumors, although no significant association between HOXB13 expression and recurrence or disease-specific survival was found. In advanced metastatic prostate cancers, HOXB13 expression was retained in the majority of tumors. While we observed lower levels of HOXB13 protein and mRNA levels in tumors with evidence of lineage plasticity, 84% of androgen receptor-negative castration-resistant prostate cancers and neuroendocrine prostate cancers (NEPCs) retained detectable levels of HOXB13. Notably, the reduced expression observed in NEPCs was associated with a gain of HOXB13 gene body CpG methylation. In comparison to the commonly used prostate lineage marker NKX3.1, HOXB13 showed greater sensitivity in detecting advanced metastatic prostate cancers. Additionally, in a cohort of 837 patients, 383 with prostatic and 454 with non-prostatic tumors, we found that HOXB13 immunohistochemistry had a 97% sensitivity and 99% specificity for prostatic origin. Taken together, our studies provide valuable insight into the expression pattern of HOXB13 during prostate development and cancer progression. Furthermore, our findings support the utility of HOXB13 as a diagnostic biomarker for prostate cancer, particularly to confirm the prostatic origin of advanced metastatic castration-resistant tumors. © 2023 The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Radhika A. Patel
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Erolcan Sayar
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Ilsa Coleman
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | | | - Brian Hanratty
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Jin-Yih Low
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Neha Jaiswal
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Azra Ajkunic
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Ruth Dumpit
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Caner Ercan
- Institute of Pathology and Medical Genetics, University Hospital Basel, Basel, Switzerland
| | - Nina Salama
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Valerie P. O’Brien
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - William B. Isaacs
- Department of Urology, Johns Hopkins University School of Medicine, MD, Baltimore, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Jonathan I. Epstein
- Department of Urology, Johns Hopkins University School of Medicine, MD, Baltimore, USA
- Department of Pathology, Johns Hopkins University School of Medicine, MD, Baltimore, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Angelo M. De Marzo
- Department of Urology, Johns Hopkins University School of Medicine, MD, Baltimore, USA
- Department of Pathology, Johns Hopkins University School of Medicine, MD, Baltimore, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Bruce J. Trock
- Department of Urology, Johns Hopkins University School of Medicine, MD, Baltimore, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Jun Luo
- Department of Urology, Johns Hopkins University School of Medicine, MD, Baltimore, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - W Nathaniel Brennen
- Department of Urology, Johns Hopkins University School of Medicine, MD, Baltimore, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Maria Tretiakova
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Funda Vakar-Lopez
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Lawrence D. True
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - David W. Goodrich
- Department of Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Eva Corey
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Colm Morrissey
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Peter S. Nelson
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Paula J. Hurley
- Departments of Medicine and Urology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Roman Gulati
- Division of Public Health Sciences, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Michael C. Haffner
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
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4
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Ajkunic A, Sayar E, Roudier MP, Patel RA, Coleman IM, De Sarkar N, Hanratty B, Adil M, Zhao J, Zaidi S, True LD, Sperger JM, Cheng HH, Yu EY, Montgomery RB, Hawley JE, Ha G, Lee JK, Harmon SA, Corey E, Lang JM, Sawyers CL, Morrissey C, Schweizer MT, Gulati R, Nelson PS, Haffner MC. ASSESSMENT OF CELL SURFACE TARGETS IN METASTATIC PROSTATE CANCER: EXPRESSION LANDSCAPE AND MOLECULAR CORRELATES. Res Sq 2023:rs.3.rs-3745991. [PMID: 38196594 PMCID: PMC10775381 DOI: 10.21203/rs.3.rs-3745991/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Therapeutic approaches targeting proteins on the surface of cancer cells have emerged as an important strategy for precision oncology. To fully capitalize on the potential impact of drugs targeting surface proteins, detailed knowledge about the expression patterns of the target proteins in tumor tissues is required. In castration-resistant prostate cancer (CRPC), agents targeting prostate-specific membrane antigen (PSMA) have demonstrated clinical activity. However, PSMA expression is lost in a significant number of CRPC tumors, and the identification of additional cell surface targets is necessary in order to develop new therapeutic approaches. Here, we performed a comprehensive analysis of the expression and co-expression patterns of trophoblast cell-surface antigen 2 (TROP2), delta-like ligand 3 (DLL3), and carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5) in CRPC samples from a rapid autopsy cohort. We show that DLL3 and CEACAM5 exhibit the highest expression in neuroendocrine prostate cancer (NEPC), while TROP2 is expressed across different CRPC molecular subtypes, except for NEPC. We observed variable intra-tumoral and inter-tumoral heterogeneity and no dominant metastatic site predilections for TROP2, DLL3, and CEACAM5. We further show that AR amplifications were associated with higher expression of PSMA and TROP2 but lower DLL3 and CEACAM5 levels. Conversely, PSMA and TROP2 expression was lower in RB1-altered tumors. In addition to genomic alterations, we demonstrate a tight correlation between epigenetic states, particularly histone H3 lysine 27 methylation (H3K27me3) at the transcriptional start site and gene body of TACSTD2 (encoding TROP2), DLL3, and CEACAM5, and their respective protein expression in CRPC patient-derived xenografts. Collectively, these findings provide novel insights into the patterns and determinants of expression of TROP2, DLL3, and CEACAM5 with important implications for the clinical development of cell surface targeting agents in CRPC.
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Affiliation(s)
- Azra Ajkunic
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Erolcan Sayar
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | | | - Radhika A Patel
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Ilsa M Coleman
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Navonil De Sarkar
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Medical College of Wisconsin Cancer Center, Milwaukee, WI, USA
- Department of Pathology, Medical College of Wisconsin, WI, USA
| | - Brian Hanratty
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Mohamed Adil
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Jimmy Zhao
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Samir Zaidi
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Lawrence D True
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | | | - Heather H Cheng
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Division of Hematology and Oncology, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Evan Y Yu
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Division of Hematology and Oncology, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Robert B Montgomery
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Division of Hematology and Oncology, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Jessica E Hawley
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Division of Hematology and Oncology, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Gavin Ha
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - John K Lee
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Division of Hematology and Oncology, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Stephanie A Harmon
- Artificial Intelligence Resource, Molecular Imaging Branch, NCI, NIH, Bethesda, MD, USA
| | - Eva Corey
- Department of Urology, University of Washington, Seattle, WA, USA
| | | | - Charles L Sawyers
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Howard Hughes Medical Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Colm Morrissey
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Michael T Schweizer
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Division of Hematology and Oncology, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Roman Gulati
- Public Health Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Peter S Nelson
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Urology, University of Washington, Seattle, WA, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Division of Hematology and Oncology, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Michael C Haffner
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
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5
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Duplaquet L, Li Y, Booker MA, Xie Y, Olsen SN, Patel RA, Hong D, Hatton C, Denize T, Walton E, Laimon YN, Li R, Jiang Y, Bronson RT, Southard J, Li S, Signoretti S, Qiu X, Cejas P, Armstrong SA, Long HW, Tolstorukov MY, Haffner MC, Oser MG. KDM6A epigenetically regulates subtype plasticity in small cell lung cancer. Nat Cell Biol 2023; 25:1346-1358. [PMID: 37591951 PMCID: PMC10546329 DOI: 10.1038/s41556-023-01210-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [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: 07/26/2022] [Accepted: 07/19/2023] [Indexed: 08/19/2023]
Abstract
Small cell lung cancer (SCLC) exists broadly in four molecular subtypes: ASCL1, NEUROD1, POU2F3 and Inflammatory. Initially, SCLC subtypes were thought to be mutually exclusive, but recent evidence shows intra-tumoural subtype heterogeneity and plasticity between subtypes. Here, using a CRISPR-based autochthonous SCLC genetically engineered mouse model to study the consequences of KDM6A/UTX inactivation, we show that KDM6A inactivation induced plasticity from ASCL1 to NEUROD1 resulting in SCLC tumours that express both ASCL1 and NEUROD1. Mechanistically, KDM6A normally maintains an active chromatin state that favours the ASCL1 subtype with its loss decreasing H3K4me1 and increasing H3K27me3 at enhancers of neuroendocrine genes leading to a cell state that is primed for ASCL1-to-NEUROD1 subtype switching. This work identifies KDM6A as an epigenetic regulator that controls ASCL1 to NEUROD1 subtype plasticity and provides an autochthonous SCLC genetically engineered mouse model to model ASCL1 and NEUROD1 subtype heterogeneity and plasticity, which is found in 35-40% of human SCLCs.
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Affiliation(s)
- Leslie Duplaquet
- Department of Medical Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Yixiang Li
- Department of Medical Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Matthew A Booker
- Department of Informatics and Analytics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Yingtian Xie
- Department of Medical Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Sarah Naomi Olsen
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA, USA
| | - Radhika A Patel
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Deli Hong
- Department of Medical Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Charlie Hatton
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA, USA
| | - Thomas Denize
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Emily Walton
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Yasmin N Laimon
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Rong Li
- Department of Medical Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Yijia Jiang
- Department of Medical Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Roderick T Bronson
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA, USA
| | - Jackson Southard
- Translational Immunogenomics Lab, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Shuqiang Li
- Translational Immunogenomics Lab, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Sabina Signoretti
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Xintao Qiu
- Department of Medical Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Paloma Cejas
- Department of Medical Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Scott A Armstrong
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA, USA
| | - Henry W Long
- Department of Medical Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Michael Y Tolstorukov
- Department of Informatics and Analytics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Michael C Haffner
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Matthew G Oser
- Department of Medical Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, MA, USA.
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6
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Quintanal-Villalonga A, Durani V, Sabet A, Redin E, Kawasaki K, Shafer M, Karthaus WR, Zaidi S, Zhan YA, Manoj P, Sridhar H, Shah NS, Chow A, Bhanot UK, Linkov I, Asher M, Yu HA, Qiu J, de Stanchina E, Patel RA, Morrissey C, Haffner MC, Koche RP, Sawyers CL, Rudin CM. Exportin 1 inhibition prevents neuroendocrine transformation through SOX2 down-regulation in lung and prostate cancers. Sci Transl Med 2023; 15:eadf7006. [PMID: 37531417 PMCID: PMC10777207 DOI: 10.1126/scitranslmed.adf7006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 07/12/2023] [Indexed: 08/04/2023]
Abstract
In lung and prostate adenocarcinomas, neuroendocrine (NE) transformation to an aggressive derivative resembling small cell lung cancer (SCLC) is associated with poor prognosis. We previously described dependency of SCLC on the nuclear transporter exportin 1. Here, we explored the role of exportin 1 in NE transformation. We observed up-regulated exportin 1 in lung and prostate pretransformation adenocarcinomas. Exportin 1 was up-regulated after genetic inactivation of TP53 and RB1 in lung and prostate adenocarcinoma cell lines, accompanied by increased sensitivity to the exportin 1 inhibitor selinexor in vitro. Exportin 1 inhibition prevented NE transformation in different TP53/RB1-inactivated prostate adenocarcinoma xenograft models that acquire NE features upon treatment with the aromatase inhibitor enzalutamide and extended response to the EGFR inhibitor osimertinib in a lung cancer transformation patient-derived xenograft (PDX) model exhibiting combined adenocarcinoma/SCLC histology. Ectopic SOX2 expression restored the enzalutamide-promoted NE phenotype on adenocarcinoma-to-NE transformation xenograft models despite selinexor treatment. Selinexor sensitized NE-transformed lung and prostate small cell carcinoma PDXs to standard cytotoxics. Together, these data nominate exportin 1 inhibition as a potential therapeutic target to constrain lineage plasticity and prevent or treat NE transformation in lung and prostate adenocarcinoma.
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Affiliation(s)
- Alvaro Quintanal-Villalonga
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Vidushi Durani
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, New York, NY 10065, USA
| | - Amin Sabet
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Esther Redin
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Kenta Kawasaki
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Moniquetta Shafer
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Wouter R. Karthaus
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Samir Zaidi
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Yingqian A. Zhan
- Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Parvathy Manoj
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Harsha Sridhar
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Nisargbhai S. Shah
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Andrew Chow
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Parker Institute for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Weill Cornell Medical College, New York, NY 10065, USA
| | - Umesh K. Bhanot
- Precision Pathology Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Irina Linkov
- Precision Pathology Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Marina Asher
- Precision Pathology Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Helena A. Yu
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Weill Cornell Medical College, New York, NY 10065, USA
| | - Juan Qiu
- Antitumor Assessment Core, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Elisa de Stanchina
- Antitumor Assessment Core, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Radhika A. Patel
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA 19024, USA
| | - Colm Morrissey
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
- Department of Urology, University of Washington, Seattle, WA 98195, USA
| | - Michael C. Haffner
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA 19024, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA
| | - Richard P. Koche
- Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Charles L. Sawyers
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Howard Hughes Medical Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Charles M. Rudin
- Department of Medicine, Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Weill Cornell Medical College, New York, NY 10065, USA
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7
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Bhatia V, Kamat NV, Pariva TE, Wu LT, Tsao A, Sasaki K, Sun H, Javier G, Nutt S, Coleman I, Hitchcock L, Zhang A, Rudoy D, Gulati R, Patel RA, Roudier MP, True LD, Srivastava S, Morrissey CM, Haffner MC, Nelson PS, Priceman SJ, Ishihara J, Lee JK. Targeting advanced prostate cancer with STEAP1 chimeric antigen receptor T cell and tumor-localized IL-12 immunotherapy. Nat Commun 2023; 14:2041. [PMID: 37041154 PMCID: PMC10090190 DOI: 10.1038/s41467-023-37874-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 04/04/2023] [Indexed: 04/13/2023] Open
Abstract
Six transmembrane epithelial antigen of the prostate 1 (STEAP1) is a cell surface antigen for therapeutic targeting in prostate cancer. Here, we report broad expression of STEAP1 relative to prostate-specific membrane antigen (PSMA) in lethal metastatic prostate cancers and the development of a STEAP1-directed chimeric antigen receptor (CAR) T cell therapy. STEAP1 CAR T cells demonstrate reactivity in low antigen density, antitumor activity across metastatic prostate cancer models, and safety in a human STEAP1 knock-in mouse model. STEAP1 antigen escape is a recurrent mechanism of treatment resistance and is associated with diminished tumor antigen processing and presentation. The application of tumor-localized interleukin-12 (IL-12) therapy in the form of a collagen binding domain (CBD)-IL-12 fusion protein combined with STEAP1 CAR T cell therapy enhances antitumor efficacy by remodeling the immunologically cold tumor microenvironment of prostate cancer and combating STEAP1 antigen escape through the engagement of host immunity and epitope spreading.
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Affiliation(s)
- Vipul Bhatia
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Nikhil V Kamat
- Division of Medical Oncology, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA
| | - Tiffany E Pariva
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Li-Ting Wu
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Annabelle Tsao
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Koichi Sasaki
- Department of Bioengineering, Imperial College London, 86 Wood Lane, London, W12 0BZ, UK
| | - Huiyun Sun
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Gerardo Javier
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Sam Nutt
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Ilsa Coleman
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Lauren Hitchcock
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Ailin Zhang
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Dmytro Rudoy
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Roman Gulati
- Public Health Sciences Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Radhika A Patel
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Martine P Roudier
- Department of Urology, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA
| | - Lawrence D True
- Department of Pathology and Laboratory Medicine, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA
| | - Shivani Srivastava
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Colm M Morrissey
- Department of Urology, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA
| | - Michael C Haffner
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
- Department of Pathology and Laboratory Medicine, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA
- Clinical Research Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Peter S Nelson
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
- Division of Medical Oncology, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA
- Public Health Sciences Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
- Department of Urology, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA
- Department of Pathology and Laboratory Medicine, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA
- Clinical Research Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA
| | - Saul J Priceman
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
- Department of Immuno-Oncology, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Jun Ishihara
- Department of Bioengineering, Imperial College London, 86 Wood Lane, London, W12 0BZ, UK.
| | - John K Lee
- Human Biology Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA.
- Division of Medical Oncology, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA.
- Department of Pathology and Laboratory Medicine, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA.
- Clinical Research Division, Fred Hutchinson Cancer Center, 1100 Fairview Ave N, Seattle, WA, 98109, USA.
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8
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Sayar E, Patel RA, Coleman IM, Roudier MP, Zhang A, Mustafi P, Low JY, Hanratty B, Ang LS, Bhatia V, Adil M, Bakbak H, Quigley DA, Schweizer MT, Hawley JE, Kollath L, True LD, Feng FY, Bander NH, Corey E, Lee JK, Morrissey C, Gulati R, Nelson PS, Haffner MC. Reversible epigenetic alterations mediate PSMA expression heterogeneity in advanced metastatic prostate cancer. JCI Insight 2023; 8:e162907. [PMID: 36821396 PMCID: PMC10132157 DOI: 10.1172/jci.insight.162907] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [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: 06/21/2022] [Accepted: 02/21/2023] [Indexed: 02/24/2023] Open
Abstract
Prostate-specific membrane antigen (PSMA) is an important cell surface target in prostate cancer. There are limited data on the heterogeneity of PSMA tissue expression in metastatic castration-resistant prostate cancer (mCRPC). Furthermore, the mechanisms regulating PSMA expression (encoded by the FOLH1 gene) are not well understood. Here, we demonstrate that PSMA expression is heterogeneous across different metastatic sites and molecular subtypes of mCRPC. In a rapid autopsy cohort in which multiple metastatic sites per patient were sampled, we found that 13 of 52 (25%) cases had no detectable PSMA and 23 of 52 (44%) cases showed heterogeneous PSMA expression across individual metastases, with 33 (63%) cases harboring at least 1 PSMA-negative site. PSMA-negative tumors displayed distinct transcriptional profiles with expression of druggable targets such as MUC1. Loss of PSMA was associated with epigenetic changes of the FOLH1 locus, including gain of CpG methylation and loss of histone 3 lysine 27 (H3K27) acetylation. Treatment with histone deacetylase (HDAC) inhibitors reversed this epigenetic repression and restored PSMA expression in vitro and in vivo. Collectively, these data provide insights into the expression patterns and regulation of PSMA in mCRPC and suggest that epigenetic therapies - in particular, HDAC inhibitors - can be used to augment PSMA levels.
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Affiliation(s)
- Erolcan Sayar
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Radhika A. Patel
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Ilsa M. Coleman
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Martine P. Roudier
- Department of Urology, University of Washington (UW), Seattle, Washington, USA
| | - Ailin Zhang
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Pallabi Mustafi
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Jin-Yih Low
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Brian Hanratty
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Lisa S. Ang
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Vipul Bhatia
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Mohamed Adil
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Hasim Bakbak
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - David A. Quigley
- UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, California, USA
| | - Michael T. Schweizer
- Division of Medical Oncology, Department of Medicine, UW, Seattle, Washington, USA
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Jessica E. Hawley
- Division of Medical Oncology, Department of Medicine, UW, Seattle, Washington, USA
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Lori Kollath
- Department of Urology, University of Washington (UW), Seattle, Washington, USA
| | - Lawrence D. True
- Department of Laboratory Medicine and Pathology, UW, Seattle, Washington, USA
| | - Felix Y. Feng
- UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, California, USA
| | - Neil H. Bander
- Department of Urology, Weill Cornell Medicine, New York, New York, USA
| | - Eva Corey
- Department of Urology, University of Washington (UW), Seattle, Washington, USA
| | - John K. Lee
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
- Department of Urology, Weill Cornell Medicine, New York, New York, USA
| | - Colm Morrissey
- Department of Urology, University of Washington (UW), Seattle, Washington, USA
| | - Roman Gulati
- Division of Public Health Sciences, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Peter S. Nelson
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
- Department of Urology, University of Washington (UW), Seattle, Washington, USA
- Division of Medical Oncology, Department of Medicine, UW, Seattle, Washington, USA
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, Washington, USA
- Department of Laboratory Medicine and Pathology, UW, Seattle, Washington, USA
| | - Michael C. Haffner
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington, USA
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, Washington, USA
- Department of Laboratory Medicine and Pathology, UW, Seattle, Washington, USA
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9
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Duplaquet L, Li Y, Booker MA, Xie Y, Patel RA, Hong D, Denize T, Walton E, Laimon YN, Bronson R, Southard J, Li S, Signoretti S, Tolstorukov MY, Cejas P, Long HW, Haffner MC, Oser MG. Abstract 5774: Small cell lung cancer subtype plasticity is regulated by KDM6A. Cancer Res 2023. [DOI: 10.1158/1538-7445.am2023-5774] [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: 04/07/2023]
Abstract
Abstract
Small cell lung cancer (SCLC) is a high-grade neuroendocrine cancer that accounts for ~15% of lung cancers. While nearly all SCLCs are genetically driven by near universal loss of function (LOF) mutations in RB1 and TP53; several recent studies show that there are different phenotypic SCLC molecular subtypes characterized by expression of lineage transcription factors. These include the neuroendocrine ASCL1 and NEUROD1 subtypes which together comprise ~70-80% of SCLCs. Initially subtypes were thought to be mutually exclusive, but recent evidence shows intra-tumoral subtype heterogeneity and plasticity between subtypes. A recent study found that 35-40% of human SCLCs express both ASCL1 and NEUROD1, but the mechanisms driving ASCL1 and NEUROD1 intra-tumoral heterogeneity are not well understood. My laboratory previously developed an autochthonous CRISPR-based SCLC genetically-engineered mouse model (GEMM) generated by intratracheally injecting adenoviruses encoding Cre recombinase and sgRNAs targeting Rb1, Trp53, and Rbl2. Cre turns on Cas9 expression and allows for CRISPR/Cas9 editing of Rb1, Trp53, and Rbl2 in somatic cells in the lungs. The unique advantage of this model is that it allows the inclusion of sgRNAs targeting additional genes of interest in the same adenovirus. Using this CRISPR-based autochthonous SCLC GEMM approach, we studied the consequences of inactivating the epigenetic modifier KDM6A during SCLC tumorigenesis. KDM6A functions as an H3K27 histone demethylase and also exists in the COMPASS complex with KMT2C/D to promote H3K4 mono-/di-methylation at enhancers. KDM6A along with its protein binding partner KMT2D are mutated in SCLC and KDM6A has been implicated in controlling differentiation in other lineages. Strikingly, we found that KDM6A inactivation in SCLC GEMMs induced plasticity from ASCL1 to NEUROD1 resulting in SCLC tumors that expressed both ASCL1 and NEUROD1. ATAC-sequencing showed open chromatin at the promoters of NEUROD1 and NEUROD1 target genes in KDM6A inactivated tumors. Interestingly, KDM6A inactivated tumors showed a spectrum of ASCL1 to NEUROD1 heterogeneity where some KDM6A inactivated tumors completely lost ASCL1 and solely expressed NEUROD1, some tumors expressed ASCL1 and NEUROD1 in a mutually exclusive manner, while others primarily expressed ASCL1 with very few NEUROD1 positive cells. Mechanistically, KDM6A binds and maintains ASCL1 target genes in an active chromatin state with its loss increasing H3K27me3 near both promoters and enhancers, and decreasing H3K4me1/2 at enhancers together leading to a cell state primed for ASCL1 to NEUROD1 subtype switching. This work identifies KDM6A as an epigenetic regulator that controls ASCL1 to NEUROD1 subtype plasticity and provides an autochthonous SCLC GEMM to model ASCL1 and NEUROD1 subtype heterogeneity, which is found in 35-40% of human SCLCs.
Citation Format: Leslie Duplaquet, Yixiang Li, Matthew A. Booker, Yingtian Xie, Radhika A. Patel, Deli Hong, Thomas Denize, Emily Walton, Yasmin N. Laimon, Roderick Bronson, Jackson Southard, Shuqiang Li, Sabina Signoretti, Michael Y. Tolstorukov, Paloma Cejas, Henry W. Long, Michael C. Haffner, Matthew G. Oser. Small cell lung cancer subtype plasticity is regulated by KDM6A. [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 5774.
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Affiliation(s)
| | - Yixiang Li
- 1Dana-Farber Cancer Institute, Boston, MA
| | | | | | | | - Deli Hong
- 1Dana-Farber Cancer Institute, Boston, MA
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10
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Schweizer MT, Gulati R, Yezefski T, Cheng HH, Mostaghel E, Haffner MC, Patel RA, De Sarkar N, Ha G, Dumpit R, Woo B, Lin A, Panlasigui P, McDonald N, Lai M, Nega K, Hammond J, Grivas P, Hsieh A, Montgomery B, Nelson PS, Yu EY. Bipolar androgen therapy plus olaparib in men with metastatic castration-resistant prostate cancer. Prostate Cancer Prostatic Dis 2023; 26:194-200. [PMID: 36564459 PMCID: PMC10286318 DOI: 10.1038/s41391-022-00636-0] [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: 10/03/2022] [Revised: 12/07/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Bipolar androgen therapy (BAT) results in rapid fluctuation of testosterone (T) between near-castrate and supraphysiological levels and has shown promise in metastatic castration-resistant prostate cancer (mCRPC). Its clinical effects may be mediated through induction of DNA damage, and preclinical studies suggest synergy with PARP inhibitors. PATIENTS AND METHODS This was a single-center, Phase II trial testing olaparib plus BAT (T cypionate/enanthate 400 mg every 28 days) with ongoing androgen deprivation. Planned recruitment was 30 subjects (equal proportions with/without homologous recombination repair [HRR] gene mutations) with mCRPC post abiraterone and/or enzalutamide. The primary objective was to determine PSA50 response (PSA decline ≥50% from baseline) rate at 12-weeks. The primary analysis utilized the entire (intent-to-treat [ITT]) cohort, with those dropping out early counted as non-responders. Secondary/exploratory analyses were in those treated beyond 12-weeks (response-evaluable cohort). RESULTS Thirty-six patients enrolled and 6 discontinued prior to response assessment. In the ITT cohort, PSA50 response rate at 12-weeks was 11/36 (31%; 95% CI 17-48%), and 16/36 (44%, 95% CI 28-62%) had a PSA50 response at any time on-study. After a median follow-up of 19 months, the median clinical/radiographic progression-free survival in the ITT cohort was 13.0 months (95% CI 7-17). Clinical outcomes were similar regardless of HRR gene mutational status. CONCLUSIONS BAT plus olaparib is associated with high response rates and long PFS. Clinical benefit was observed regardless of HRR gene mutational status.
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Affiliation(s)
- Michael T Schweizer
- Department of Medicine, University of Washington, Seattle, WA, USA.
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA.
| | - Roman Gulati
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Todd Yezefski
- Department of Medicine, University of Washington, Seattle, WA, USA
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Heather H Cheng
- Department of Medicine, University of Washington, Seattle, WA, USA
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Elahe Mostaghel
- Department of Medicine, University of Washington, Seattle, WA, USA
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- VA Puget Sound Health Care System, Seattle, WA, USA
| | - Michael C Haffner
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Radhika A Patel
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Navonil De Sarkar
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Gavin Ha
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Ruth Dumpit
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Brianna Woo
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Aaron Lin
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Patrick Panlasigui
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Nerina McDonald
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Michael Lai
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Katie Nega
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Jeannette Hammond
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Petros Grivas
- Department of Medicine, University of Washington, Seattle, WA, USA
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Andrew Hsieh
- Department of Medicine, University of Washington, Seattle, WA, USA
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Bruce Montgomery
- Department of Medicine, University of Washington, Seattle, WA, USA
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
- VA Puget Sound Health Care System, Seattle, WA, USA
| | - Peter S Nelson
- Department of Medicine, University of Washington, Seattle, WA, USA
- Human Biology Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Evan Y Yu
- Department of Medicine, University of Washington, Seattle, WA, USA
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, USA
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11
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Low JY, Ko M, Hanratty B, Patel RA, Bhamidipati A, Heaphy CM, Sayar E, Lee JK, Li S, De Marzo AM, Nelson WG, Gupta A, Yegnasubramanian S, Ha G, Epstein JI, Haffner MC. Genomic Characterization of Prostatic Basal Cell Carcinoma. Am J Pathol 2023; 193:4-10. [PMID: 36309102 PMCID: PMC9768679 DOI: 10.1016/j.ajpath.2022.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/13/2022] [Accepted: 09/30/2022] [Indexed: 11/05/2022]
Abstract
Basal cell carcinoma (BCC) of the prostate is a rare tumor. Compared with the more common acinar adenocarcinoma (AAC) of the prostate, BCCs show features of basal cell differentiation and are thought to be biologically distinct from AAC. The spectrum of molecular alterations of BCC has not been comprehensively described, and genomic studies are lacking. Herein, whole genome sequencing was performed on archival formalin-fixed, paraffin-embedded specimens of two cases with BCC. Prostatic BCCs were characterized by an overall low copy number and mutational burden. Recurrent copy number loss of chromosome 16 was observed. In addition, putative driver gene alterations in KIT, DENND3, PTPRU, MGA, and CYLD were identified. Mechanistically, depletion of the CYLD protein resulted in increased proliferation of prostatic basal cells in vitro. Collectively, these studies show that prostatic BCC displays distinct genomic alterations from AAC and highlight a potential role for loss of chromosome 16 in the pathogenesis of this rare tumor type.
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Affiliation(s)
- Jin-Yih Low
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Minjeong Ko
- Division of Public Health Science, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Brian Hanratty
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Radhika A Patel
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Akshay Bhamidipati
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Christopher M Heaphy
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Medicine, Boston University School of Medicine and Boston Medical Center, Boston, Massachusetts
| | - Erolcan Sayar
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington
| | - John K Lee
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington; Clinical Research, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Shan Li
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Angelo M De Marzo
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - William G Nelson
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Anuj Gupta
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Srinivasan Yegnasubramanian
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Gavin Ha
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington; Division of Public Health Science, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Jonathan I Epstein
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland.
| | - Michael C Haffner
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, Washington; Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland; Clinical Research, Fred Hutchinson Cancer Center, Seattle, Washington; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington.
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12
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Bakbak H, Sayar E, Kaur HB, Salles DC, Patel RA, Hicks J, Lotan TL, De Marzo AM, Gulati R, Epstein JI, Haffner MC. Clonal relationships of adjacent Gleason pattern 3 and Gleason pattern 5 lesions in Gleason Scores 3+5=8 and 5+3=8. Hum Pathol 2022; 130:18-24. [PMID: 36309296 PMCID: PMC10542864 DOI: 10.1016/j.humpath.2022.10.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/13/2022] [Accepted: 10/20/2022] [Indexed: 11/04/2022]
Abstract
Genomic studies have demonstrated a high level of intra-tumoral heterogeneity in prostate cancer. There is strong evidence suggesting that individual tumor foci can arise as genetically distinct, clonally independent lesions. However, recent studies have also demonstrated that adjacent Gleason pattern (GP) 3 and GP4 lesions can originate from the same clone but follow divergent genetic and morphologic evolution. The clonal relationship of adjacent GP3 and GP5 lesions has thus far not been investigated. Here we analyzed a cohort of 14 cases-11 biopsy and 3 radical prostatectomy specimens-with a Gleason score of 3 + 5 = 8 or 5 + 3 = 8 present in the same biopsy or in a single dominant tumor nodule at radical prostatectomy. Clonal and subclonal relationships between GP3 and GP5 lesions were assessed using genetically validated immunohistochemical assays for ERG, PTEN, and P53. 9/14 (64%) cases showed ERG reactivity in both GP3 and GP5 lesions. Only 1/14 (7%) cases showed a discordant pattern with ERG staining present only in GP3. PTEN expression was lost in 2/14 (14%) cases with perfect concordance between GP5 and GP3. P53 nuclear reactivity was present in 1/14 (7%) case in both GP5 and GP3. This study provides first evidence that the majority of adjacent GP3 and GP5 lesions share driver alterations and are clonally related. In addition, we observed a lower-than-expected rate of PTEN loss in GP5 in the context of Gleason score 3 + 5 = 8 or 5 + 3 = 8 tumors.
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Affiliation(s)
- Hasim Bakbak
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, 98109, WA, USA
| | - Erolcan Sayar
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, 98109, WA, USA
| | - Harsimar B Kaur
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA
| | - Daniela C Salles
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA
| | - Radhika A Patel
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, 98109, WA, USA
| | - Jessica Hicks
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA
| | - Tamara L Lotan
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA; Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA; Department of Urology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA
| | - Angelo M De Marzo
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA; Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA; Department of Urology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA
| | - Roman Gulati
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, 98109, WA, USA
| | - Jonathan I Epstein
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA; Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA; Department of Urology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA.
| | - Michael C Haffner
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, 98109, WA, USA; Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, 21287, MD, USA; Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, 98109, WA, USA; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, 98195, WA, USA.
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13
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Westbrook TC, Guan X, Rodansky E, Flores D, Liu CJ, Udager AM, Patel RA, Haffner MC, Hu YM, Sun D, Beer TM, Foye A, Aggarwal R, Quigley DA, Youngren JF, Ryan CJ, Gleave M, Wang Y, Huang J, Coleman I, Morrissey C, Nelson PS, Evans CP, Lara P, Reiter RE, Witte O, Rettig M, Wong CK, Weinstein AS, Uzunangelov V, Stuart JM, Thomas GV, Feng FY, Small EJ, Yates JA, Xia Z, Alumkal JJ. Transcriptional profiling of matched patient biopsies clarifies molecular determinants of enzalutamide-induced lineage plasticity. Nat Commun 2022; 13:5345. [PMID: 36109521 PMCID: PMC9477876 DOI: 10.1038/s41467-022-32701-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 08/11/2022] [Indexed: 11/08/2022] Open
Abstract
The androgen receptor (AR) signaling inhibitor enzalutamide (enza) is one of the principal treatments for metastatic castration-resistant prostate cancer (CRPC). Several emergent enza clinical resistance mechanisms have been described, including lineage plasticity in which the tumors manifest reduced dependency on the AR. To improve our understanding of enza resistance, herein we analyze the transcriptomes of matched biopsies from men with metastatic CRPC obtained prior to treatment and at progression (n = 21). RNA-sequencing analysis demonstrates that enza does not induce marked, sustained changes in the tumor transcriptome in most patients. However, three patients' progression biopsies show evidence of lineage plasticity. The transcription factor E2F1 and pathways linked to tumor stemness are highly activated in baseline biopsies from patients whose tumors undergo lineage plasticity. We find a gene signature enriched in these baseline biopsies that is strongly associated with poor survival in independent patient cohorts and with risk of castration-induced lineage plasticity in patient-derived xenograft models, suggesting that tumors harboring this gene expression program may be at particular risk for resistance mediated by lineage plasticity and poor outcomes.
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Affiliation(s)
- Thomas C Westbrook
- Division of Hematology and Oncology, Department of Internal Medicine, Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA
| | - Xiangnan Guan
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - Eva Rodansky
- Division of Hematology and Oncology, Department of Internal Medicine, Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA
| | - Diana Flores
- Division of Hematology and Oncology, Department of Internal Medicine, Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA
| | - Chia Jen Liu
- Department of Pathology, Michigan Center for Translational Pathology, Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA
| | - Aaron M Udager
- Department of Pathology, Michigan Center for Translational Pathology, Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA
| | - Radhika A Patel
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Michael C Haffner
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Ya-Mei Hu
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - Duanchen Sun
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - Tomasz M Beer
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - Adam Foye
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Rahul Aggarwal
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - David A Quigley
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Jack F Youngren
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Charles J Ryan
- Masonic Cancer Center, University of Minnesota; Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Martin Gleave
- Department of Urological Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC, Canada
| | - Yuzhuo Wang
- Department of Urological Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC, Canada
- Department of Experimental Therapeutics, BC Cancer, University of British Columbia, Vancouver, BC, Canada
| | | | - Ilsa Coleman
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Colm Morrissey
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Peter S Nelson
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | | | - Primo Lara
- University of California Davis, Davis, CA, USA
| | | | - Owen Witte
- Department of Microbiology, Immunology, and Molecular Genetics at the David Geffen School of Medicine, UCLA, Los Angeles, CA, USA
| | - Matthew Rettig
- University of California Los Angeles, Los Angeles, CA, USA
- VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA
| | - Christopher K Wong
- UC Santa Cruz Genomics Institute and Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Alana S Weinstein
- UC Santa Cruz Genomics Institute and Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Vlado Uzunangelov
- UC Santa Cruz Genomics Institute and Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Josh M Stuart
- UC Santa Cruz Genomics Institute and Department of Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - George V Thomas
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - Felix Y Feng
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
- Departments of Radiation Oncology and Urology, University of California San Francisco, San Francisco, CA, USA
| | - Eric J Small
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, San Francisco, CA, USA
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Joel A Yates
- Division of Hematology and Oncology, Department of Internal Medicine, Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA
| | - Zheng Xia
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA.
| | - Joshi J Alumkal
- Division of Hematology and Oncology, Department of Internal Medicine, Rogel Cancer Center, University of Michigan, Ann Arbor, MI, USA.
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14
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Sowalsky AG, Figueiredo I, Lis RT, Coleman I, Gurel B, Bogdan D, Yuan W, Russo JW, Bright JR, Whitlock NC, Trostel SY, Ku AT, Patel RA, True LD, Welti J, Jimenez-Vacas JM, Rodrigues DN, Riisnaes R, Neeb A, Sprenger CT, Swain A, Wilkinson S, Karzai F, Dahut WL, Balk SP, Corey E, Nelson PS, Haffner MC, Plymate SR, de Bono JS, Sharp A. Assessment of Androgen Receptor Splice Variant-7 as a Biomarker of Clinical Response in Castration-Sensitive Prostate Cancer. Clin Cancer Res 2022; 28:3509-3525. [PMID: 35695870 PMCID: PMC9378683 DOI: 10.1158/1078-0432.ccr-22-0851] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/17/2022] [Accepted: 06/08/2022] [Indexed: 11/16/2022]
Abstract
PURPOSE Therapies targeting the androgen receptor (AR) have improved the outcome for patients with castration-sensitive prostate cancer (CSPC). Expression of the constitutively active AR splice variant-7 (AR-V7) has shown clinical utility as a predictive biomarker of AR-targeted therapy resistance in castration-resistant prostate cancer (CRPC), but its importance in CSPC remains understudied. EXPERIMENTAL DESIGN We assessed different approaches to quantify AR-V7 mRNA and protein in prostate cancer cell lines, patient-derived xenograft (PDX) models, publicly available cohorts, and independent institutional clinical cohorts, to identify reliable approaches for detecting AR-V7 mRNA and protein and its association with clinical outcome. RESULTS In CSPC and CRPC cohorts, AR-V7 mRNA was much less abundant when detected using reads across splice boundaries than when considering isoform-specific exonic reads. The RM7 AR-V7 antibody had increased sensitivity and specificity for AR-V7 protein detection by immunohistochemistry (IHC) in CRPC cohorts but rarely identified AR-V7 protein reactivity in CSPC cohorts, when compared with the EPR15656 AR-V7 antibody. Using multiple CRPC PDX models, we demonstrated that AR-V7 expression was exquisitely sensitive to hormonal manipulation. In CSPC institutional cohorts, AR-V7 protein quantification by either assay was associated neither with time to development of castration resistance nor with overall survival, and intense neoadjuvant androgen-deprivation therapy did not lead to significant AR-V7 mRNA or staining following treatment. Neither pre- nor posttreatment AR-V7 levels were associated with volumes of residual disease after therapy. CONCLUSIONS This study demonstrates that further analytical validation and clinical qualification are required before AR-V7 can be considered for clinical use in CSPC as a predictive biomarker.
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Affiliation(s)
| | | | - Rosina T. Lis
- Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | - Ilsa Coleman
- Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Bora Gurel
- Institute of Cancer Research, London, UK
| | | | - Wei Yuan
- Institute of Cancer Research, London, UK
| | | | - John R. Bright
- Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | | | | | - Anson T. Ku
- Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | | | | | | | | | | | | | - Antje Neeb
- Institute of Cancer Research, London, UK
| | | | | | | | - Fatima Karzai
- Center for Cancer Research, NCI, NIH, Bethesda, Maryland
| | | | - Steven P. Balk
- Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Eva Corey
- University of Washington, Seattle, Washington
| | - Peter S. Nelson
- Fred Hutchinson Cancer Research Center, Seattle, Washington
- University of Washington, Seattle, Washington
| | - Michael C. Haffner
- Fred Hutchinson Cancer Research Center, Seattle, Washington
- University of Washington, Seattle, Washington
| | - Stephen R. Plymate
- University of Washington, Seattle, Washington
- Geriatrics Research, Education and Clinical Center, VAPSHCS, Seattle, Washington
| | - Johann S. de Bono
- Institute of Cancer Research, London, UK
- Royal Marsden NHS Foundation Trust, London, UK
| | - Adam Sharp
- Institute of Cancer Research, London, UK
- Royal Marsden NHS Foundation Trust, London, UK
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15
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Patel RA, Coleman I, Roudier MP, Konnick EQ, Hanratty B, Dumpit R, Lucas JM, Ang LS, Low JY, Tretiakova MS, Ha G, Lee JK, True LD, De Marzo AM, Nelson PS, Morrissey C, Pritchard CC, Haffner MC. Comprehensive assessment of anaplastic lymphoma kinase in localized and metastatic prostate cancer reveals targetable alterations. Cancer Res Commun 2022; 2:277-285. [PMID: 36337169 PMCID: PMC9635400 DOI: 10.1158/2767-9764.crc-21-0156] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/14/2022] [Accepted: 04/14/2022] [Indexed: 06/16/2023]
Abstract
Anaplastic lymphoma kinase (ALK) is a tyrosine kinase with genomic and expression changes in many solid tumors. ALK inhibition is first line therapy for lung cancers with ALK alterations, and an effective therapy in other tumor types, but has not been well-studied in prostate cancer. Here, we aim to delineate the role of ALK genomic and expression changes in primary and metastatic prostate cancer. We determined ALK expression by immunohistochemistry and RNA-Seq, and genomic alterations by NGS. We assessed functional consequences of ALK overexpression and pharmacological ALK inhibition by cell proliferation and cell viability assays. Among 372 primary prostate cancer cases we identified one case with uniformly high ALK protein expression. Genomic analysis revealed a SLC45A3-ALK fusion which promoted oncogenesis in in vitro assays. We observed ALK protein expression in 5/52 (9%) of metastatic prostate cancer cases, of which 4 of 5 had neuroendocrine features. ALK-expressing neuroendocrine prostate cancer had a distinct transcriptional program, and earlier disease progression. An ALK-expressing neuroendocrine prostate cancer model was sensitive to pharmacological ALK inhibition. In summary, we found that ALK overexpression is rare in primary prostate cancer, but more frequent in metastatic prostate cancers with neuroendocrine differentiation. Further, ALK fusions similar to lung cancer are an occasional driver in prostate cancer. Our data suggest that ALK-directed therapies could be an option in selected patients with advanced prostate cancer.
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Affiliation(s)
- Radhika A. Patel
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Ilsa Coleman
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | | | - Eric Q. Konnick
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington
- The Brotman Baty Institute for Precision Medicine, Seattle, Washington
| | - Brian Hanratty
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Ruth Dumpit
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Jared M. Lucas
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Lisa S. Ang
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Jin-Yih Low
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Maria S. Tretiakova
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington
| | - Gavin Ha
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
- The Brotman Baty Institute for Precision Medicine, Seattle, Washington
| | - John K. Lee
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Lawrence D. True
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington
| | - Angelo M. De Marzo
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Peter S. Nelson
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington
- The Brotman Baty Institute for Precision Medicine, Seattle, Washington
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Colm Morrissey
- Department of Urology, University of Washington, Seattle, Washington
| | - Colin C. Pritchard
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington
- The Brotman Baty Institute for Precision Medicine, Seattle, Washington
| | - Michael C. Haffner
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, Washington
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
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16
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Haffner MC, Bhamidipati A, Tsai HK, Esopi DM, Vaghasia AM, Low JY, Patel RA, Guner G, Pham MT, Castagna N, Hicks J, Wyhs N, Aebersold R, De Marzo AM, Nelson WG, Guo T, Yegnasubramanian S. Phenotypic characterization of two novel cell line models of castration-resistant prostate cancer. Prostate 2021; 81:1159-1171. [PMID: 34402095 PMCID: PMC8460612 DOI: 10.1002/pros.24210] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 02/22/2021] [Revised: 06/30/2021] [Accepted: 08/04/2021] [Indexed: 01/01/2023]
Abstract
BACKGROUND Resistance to androgen deprivation therapies is a major driver of mortality in advanced prostate cancer. Therefore, there is a need to develop new preclinical models that allow the investigation of resistance mechanisms and the assessment of drugs for the treatment of castration-resistant prostate cancer. METHODS We generated two novel cell line models (LAPC4-CR and VCaP-CR) which were derived by passaging LAPC4 and VCaP cells in vivo and in vitro under castrate conditions. We performed detailed transcriptomic (RNA-seq) and proteomic analyses (SWATH-MS) to delineate expression differences between castration-sensitive and castration-resistant cell lines. Furthermore, we characterized the in vivo and in vitro growth characteristics of these novel cell line models. RESULTS The two cell line derivatives LAPC4-CR and VCaP-CR showed castration-resistant growth in vitro and in vivo which was only minimally inhibited by AR antagonists, enzalutamide, and bicalutamide. High-dose androgen treatment resulted in significant growth arrest of VCaP-CR but not in LAPC4-CR cells. Both cell lines maintained AR expression, but exhibited distinct expression changes on the mRNA and protein level. Integrated analyses including data from LNCaP and the previously described castration-resistant LNCaP-abl cells revealed an expression signature of castration resistance. CONCLUSIONS The two novel cell line models LAPC4-CR and VCaP-CR and their comprehensive characterization on the RNA and protein level represent important resources to study the molecular mechanisms of castration resistance.
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Affiliation(s)
- Michael C. Haffner
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- Department of Pathology, University of Washington, Seattle, WA, USA
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Akshay Bhamidipati
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Harrison K. Tsai
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA, USA
| | - David M. Esopi
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Ajay M. Vaghasia
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Jin-Yih Low
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Radhika A. Patel
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Gunes Guner
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Hacettepe University Faculty of Medicine, Department of Pathology, Ankara, Turkey
| | - Minh-Tam Pham
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Nicole Castagna
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Jessica Hicks
- Department of Pathology, University of Washington, Seattle, WA, USA
| | - Nicolas Wyhs
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
| | - Ruedi Aebersold
- Department of Biology, Institute of Molecular Systems Biology, ETH, Zürich, Switzerland
- Faculty of Science, University of Zürich, Zürich. Switzerland
| | - Angelo M. De Marzo
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
- Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - William G. Nelson
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
- Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Tiannan Guo
- Department of Biology, Institute of Molecular Systems Biology, ETH, Zürich, Switzerland
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang Province, China
| | - Srinivasan Yegnasubramanian
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, MD, Baltimore, USA
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17
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Cejas P, Xie Y, Font-Tello A, Lim K, Syamala S, Qiu X, Tewari AK, Shah N, Nguyen HM, Patel RA, Brown L, Coleman I, Hackeng WM, Brosens L, Dreijerink KMA, Ellis L, Alaiwi SA, Seo JH, Baca S, Beltran H, Khani F, Pomerantz M, Dall'Agnese A, Crowdis J, Van Allen EM, Bellmunt J, Morrisey C, Nelson PS, DeCaprio J, Farago A, Dyson N, Drapkin B, Liu XS, Freedman M, Haffner MC, Corey E, Brown M, Long HW. Subtype heterogeneity and epigenetic convergence in neuroendocrine prostate cancer. Nat Commun 2021; 12:5775. [PMID: 34599169 PMCID: PMC8486778 DOI: 10.1038/s41467-021-26042-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [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] [Received: 10/30/2020] [Accepted: 09/07/2021] [Indexed: 12/30/2022] Open
Abstract
Neuroendocrine carcinomas (NEC) are tumors expressing markers of neuronal differentiation that can arise at different anatomic sites but have strong histological and clinical similarities. Here we report the chromatin landscapes of a range of human NECs and show convergence to the activation of a common epigenetic program. With a particular focus on treatment emergent neuroendocrine prostate cancer (NEPC), we analyze cell lines, patient-derived xenograft (PDX) models and human clinical samples to show the existence of two distinct NEPC subtypes based on the expression of the neuronal transcription factors ASCL1 and NEUROD1. While in cell lines and PDX models these subtypes are mutually exclusive, single-cell analysis of human clinical samples exhibits a more complex tumor structure with subtypes coexisting as separate sub-populations within the same tumor. These tumor sub-populations differ genetically and epigenetically contributing to intra- and inter-tumoral heterogeneity in human metastases. Overall, our results provide a deeper understanding of the shared clinicopathological characteristics shown by NECs. Furthermore, the intratumoral heterogeneity of human NEPCs suggests the requirement of simultaneous targeting of coexisting tumor populations as a therapeutic strategy. Neuroendocrine carcinomas (NECs) arise from different anatomic sites, but have similar histological and clinical features. Here, the authors show that the epigenetic landscape of a range of NECs converges towards a common epigenetic state, while distinct subtypes occur within neuroendocrine prostate cancer contributing to intratumor heterogeneity in clinical samples.
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Affiliation(s)
- Paloma Cejas
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA. .,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA. .,Translational Oncology Laboratory, Hospital La Paz Institute for Health Research (IdiPAZ) and CIBERONC, La Paz University Hospital, Madrid, Spain.
| | - Yingtian Xie
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA.,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Alba Font-Tello
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA.,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Klothilda Lim
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA.,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Sudeepa Syamala
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA.,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Xintao Qiu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA.,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Alok K Tewari
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA.,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Neel Shah
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA.,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Holly M Nguyen
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Radhika A Patel
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Lisha Brown
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Ilsa Coleman
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Wenzel M Hackeng
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Lodewijk Brosens
- Department of Pathology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | | | - Leigh Ellis
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Department of Oncologic Pathology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
| | - Sarah Abou Alaiwi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA
| | - Ji-Heui Seo
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA
| | - Sylvan Baca
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA
| | - Himisha Beltran
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA
| | - Francesca Khani
- Weill Cornell Medical Center, Department of Pathology and Laboratory Medicine, New York Presbyterian Hospital, New York, NY, USA
| | - Mark Pomerantz
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA
| | | | - Jett Crowdis
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Eliezer M Van Allen
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Joaquim Bellmunt
- Beth Israel Deaconess Medical Center and PSMAR-IMIM Lab. Harvard Medical School, Boston, Massachusetts, USA
| | - Colm Morrisey
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Peter S Nelson
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - James DeCaprio
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA
| | - Anna Farago
- Massachusetts General Hospital Cancer Center, Boston, MA, USA
| | - Nicholas Dyson
- Massachusetts General Hospital Cancer Center, Boston, MA, USA
| | - Benjamin Drapkin
- Nancy B. and Jake L. Hamon Center for Therapeutic Oncology Research, Dallas, TX, USA.,Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA.,Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - X Shirley Liu
- Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA.,Department of Data Science, Dana-Farber Cancer Institute, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Matthew Freedman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA.,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Michael C Haffner
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Department of Pathology, University of Washington, Seattle, WA, USA
| | - Eva Corey
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Myles Brown
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA. .,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA.
| | - Henry W Long
- Department of Medical Oncology, Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA. .,Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, USA.
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18
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Lopez-Bujanda ZA, Haffner MC, Chaimowitz MG, Chowdhury N, Venturini NJ, Patel RA, Obradovic A, Hansen CS, Jacków J, Maynard JP, Sfanos KS, Abate-Shen C, Bieberich CJ, Hurley PJ, Selby MJ, Korman AJ, Christiano AM, De Marzo AM, Drake CG. Castration-mediated IL-8 promotes myeloid infiltration and prostate cancer progression. Nat Cancer 2021; 2:803-818. [PMID: 35122025 PMCID: PMC9169571 DOI: 10.1038/s43018-021-00227-3] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 05/26/2021] [Indexed: 11/09/2022]
Abstract
Unlike several other tumor types, prostate cancer rarely responds to immune checkpoint blockade (ICB). To define tumor cell intrinsic factors that contribute to prostate cancer progression and resistance to ICB, we analyzed prostate cancer epithelial cells from castration-sensitive and -resistant samples using implanted tumors, cell lines, transgenic models and human tissue. We found that castration resulted in increased expression of interleukin-8 (IL-8) and its probable murine homolog Cxcl15 in prostate epithelial cells. We showed that these chemokines drove subsequent intratumoral infiltration of tumor-promoting polymorphonuclear myeloid-derived suppressor cells (PMN-MDSCs), which was largely abrogated when IL-8 signaling was blocked genetically or pharmacologically. Targeting IL-8 signaling in combination with ICB delayed the onset of castration resistance and increased the density of polyfunctional CD8 T cells in tumors. Our findings establish a novel mechanism by which castration mediates IL-8 secretion and subsequent PMN-MDSC infiltration, and highlight blockade of the IL-8/CXCR2 axis as a potential therapeutic intervention.
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Affiliation(s)
- Zoila A Lopez-Bujanda
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
- Molecular Pathogenesis Program, Kimmel Center for Biology and Medicine, Skirball Institute, New York University School of Medicine, New York, NY, USA
| | - Michael C Haffner
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Pathology, University of Washington School of Medicine, Seattle, WA, USA
| | - Matthew G Chaimowitz
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Nivedita Chowdhury
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Nicholas J Venturini
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Radhika A Patel
- Department of Pathology, University of Washington School of Medicine, Seattle, WA, USA
| | - Aleksandar Obradovic
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA
| | - Corey S Hansen
- Department of Dermatology, Columbia University, New York, NY, USA
| | - Joanna Jacków
- Department of Dermatology, Columbia University, New York, NY, USA
- St John's Institute of Dermatology, King's College London, London, England
| | - Janielle P Maynard
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Karen S Sfanos
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Cory Abate-Shen
- Department of Molecular Pharmacology and Therapeutics, Columbia University Irving Medical Center, New York, NY, USA
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY, USA
- Department of Urology, Columbia University Irving Medical Center, New York, NY, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - Charles J Bieberich
- Department of Biological Sciences, University of Maryland, Baltimore County, Baltimore, MD, USA
- University of Maryland Marlene and Stewart Greenebaum Cancer Center, Baltimore, MD, USA
| | - Paula J Hurley
- Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Hematology/Oncology, Vanderbilt University, Nashville, TN, USA
| | - Mark J Selby
- Bristol-Myers Squibb, Redwood City, CA, USA
- Walking Fish Therapeutics, San Francisco, CA, USA
| | - Alan J Korman
- Bristol-Myers Squibb, Redwood City, CA, USA
- Vir Biotechnology, San Francisco, CA, USA
| | - Angela M Christiano
- Department of Dermatology, Columbia University, New York, NY, USA
- Department of Genetics and Development, Columbia University, New York, NY, USA
| | - Angelo M De Marzo
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Urology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Charles G Drake
- Columbia Center for Translational Immunology, Columbia University Irving Medical Center, New York, NY, USA.
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA.
- Division of Hematology/Oncology, Department of Medicine, Columbia University, New York, NY, USA.
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19
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Brennen WN, Zhu Y, Coleman IM, Dalrymple SL, Antony L, Patel RA, Hanratty B, Chikarmane R, Meeker AK, Zheng SL, Hooper JE, Luo J, De Marzo AM, Corey E, Xu J, Yegnasubramanian S, Haffner MC, Nelson PS, Nelson WG, Isaacs WB, Isaacs JT. Resistance to androgen receptor signaling inhibition does not necessitate development of neuroendocrine prostate cancer. JCI Insight 2021; 6:146827. [PMID: 33724955 PMCID: PMC8119192 DOI: 10.1172/jci.insight.146827] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 12/10/2020] [Accepted: 03/10/2021] [Indexed: 01/02/2023] Open
Abstract
Resistance to AR signaling inhibitors (ARSis) in a subset of metastatic castration-resistant prostate cancers (mCRPCs) occurs with the emergence of AR– neuroendocrine prostate cancer (NEPC) coupled with mutations/deletions in PTEN, TP53, and RB1 and the overexpression of DNMTs, EZH2, and/or SOX2. To resolve whether the lack of AR is the driving factor for the emergence of the NE phenotype, molecular, cell, and tumor biology analyses were performed on 23 xenografts derived from patients with PC, recapitulating the full spectrum of genetic alterations proposed to drive NE differentiation. Additionally, phenotypic response to CRISPR/Cas9-mediated AR KO in AR+ CRPC cells was evaluated. These analyses document that (a) ARSi-resistant NEPC developed without androgen deprivation treatment; (b) ARS in ARSi-resistant AR+/NE+ double-positive “amphicrine” mCRPCs did not suppress NE differentiation; (c) the lack of AR expression did not necessitate acquiring a NE phenotype, despite concomitant mutations/deletions in PTEN and TP53, and the loss of RB1 but occurred via emergence of an AR–/NE– double-negative PC (DNPC); (d) despite DNPC cells having homogeneous genetic driver mutations, they were phenotypically heterogeneous, expressing basal lineage markers alone or in combination with luminal lineage markers; and (e) AR loss was associated with AR promoter hypermethylation in NEPCs but not in DNPCs.
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Affiliation(s)
- W Nathaniel Brennen
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Johns Hopkins University, Baltimore, Maryland, USA.,Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Yezi Zhu
- Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ilsa M Coleman
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Susan L Dalrymple
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Johns Hopkins University, Baltimore, Maryland, USA
| | - Lizamma Antony
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Johns Hopkins University, Baltimore, Maryland, USA
| | - Radhika A Patel
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Brian Hanratty
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Roshan Chikarmane
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Johns Hopkins University, Baltimore, Maryland, USA
| | - Alan K Meeker
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Johns Hopkins University, Baltimore, Maryland, USA.,Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Pathology, SKCCC, Johns Hopkins University, Baltimore, Maryland, USA
| | - S Lilly Zheng
- Program for Personalized Cancer Care, North Shore University Health System, Evanston, Illinois, USA
| | - Jody E Hooper
- Department of Pathology, SKCCC, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jun Luo
- Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Angelo M De Marzo
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Johns Hopkins University, Baltimore, Maryland, USA.,Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Pathology, SKCCC, Johns Hopkins University, Baltimore, Maryland, USA
| | | | - Jianfeng Xu
- Program for Personalized Cancer Care, North Shore University Health System, Evanston, Illinois, USA
| | - Srinivasan Yegnasubramanian
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Johns Hopkins University, Baltimore, Maryland, USA.,Department of Pathology, SKCCC, Johns Hopkins University, Baltimore, Maryland, USA
| | - Michael C Haffner
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Pathology, University of Washington, Seattle, Washington, USA
| | - Peter S Nelson
- Division of Human Biology, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA.,Department of Urology and
| | - William G Nelson
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Johns Hopkins University, Baltimore, Maryland, USA.,Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Pathology, SKCCC, Johns Hopkins University, Baltimore, Maryland, USA
| | - William B Isaacs
- Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - John T Isaacs
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center (SKCCC), Johns Hopkins University, Baltimore, Maryland, USA.,Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Pathology, SKCCC, Johns Hopkins University, Baltimore, Maryland, USA
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20
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Patel AC, Pandya AJ, Patel RA, G. G, Shendurse AM, Roy SK. Storage related changes in Lassi supplemented with Amaranthus flour. IJDS 2020. [DOI: 10.33785/ijds.2020.v73i06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Hartzler AL, Patel RA, Czerwinski M, Pratt W, Roseway A, Chandrasekaran N, Back A. Real-time feedback on nonverbal clinical communication. Theoretical framework and clinician acceptance of ambient visual design. Methods Inf Med 2014; 53:389-405. [PMID: 24970354 DOI: 10.3414/me13-02-0033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Accepted: 04/25/2014] [Indexed: 12/30/2022]
Abstract
INTRODUCTION This article is part of the focus theme of Methods of Information in Medicine on "Pervasive Intelligent Technologies for Health". BACKGROUND Effective nonverbal communication between patients and clinicians fosters both the delivery of empathic patient-centered care and positive patient outcomes. Although nonverbal skill training is a recognized need, few efforts to enhance patient-clinician communication provide visual feedback on nonverbal aspects of the clinical encounter. OBJECTIVES We describe a novel approach that uses social signal processing technology (SSP) to capture nonverbal cues in real time and to display ambient visual feedback on control and affiliation--two primary, yet distinct dimensions of interpersonal nonverbal communication. To examine the design and clinician acceptance of ambient visual feedback on nonverbal communication, we 1) formulated a model of relational communication to ground SSP and 2) conducted a formative user study using mixed methods to explore the design of visual feedback. METHODS Based on a model of relational communication, we reviewed interpersonal communication research to map nonverbal cues to signals of affiliation and control evidenced in patient-clinician interaction. Corresponding with our formulation of this theoretical framework, we designed ambient real-time visualizations that reflect variations of affiliation and control. To explore clinicians' acceptance of this visual feedback, we conducted a lab study using the Wizard-of-Oz technique to simulate system use with 16 healthcare professionals. We followed up with seven of those participants through interviews to iterate on the design with a revised visualization that addressed emergent design considerations. RESULTS Ambient visual feedback on non- verbal communication provides a theoretically grounded and acceptable way to provide clinicians with awareness of their nonverbal communication style. We provide implications for the design of such visual feedback that encourages empathic patient-centered communication and include considerations of metaphor, color, size, position, and timing of feedback. CONCLUSIONS Ambient visual feedback from SSP holds promise as an acceptable means for facilitating empathic patient-centered nonverbal communication.
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Affiliation(s)
- A L Hartzler
- Andrea Hartzler, PhD, The Information School, Box 352840 Mary Gates Hall, Ste 370, University of Washington, Seattle, WA 98195-2840, USA, E-mail:
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22
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Abstract
Objectives To review the systemic impact of smoking on bone healing as evidenced
within the orthopaedic literature. Methods A protocol was established and studies were sourced from five
electronic databases. Screening, data abstraction and quality assessment
was conducted by two review authors. Prospective and retrospective
clinical studies were included. The primary outcome measures were
based on clinical and/or radiological indicators of bone healing.
This review specifically focused on non-spinal orthopaedic studies. Results Nine tibia studies and eight other orthopaedic studies were considered
for systematic review. Of these 17 studies, 13 concluded that smoking
negatively influenced bone healing. Conclusions Smoking has a negative effect on bone healing, in terms of delayed
union, nonunion and more complications.
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Affiliation(s)
- R A Patel
- King's College London Dental Institute, Departmentof Periodontology, Guy's Hospital Campus, LondonSE1 9RT, UK
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23
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Patel RA, Liu Y, Wang B, Li R, Sebti SM. Identification of novel ROCK inhibitors with anti-migratory and anti-invasive activities. Oncogene 2013; 33:550-5. [PMID: 23396364 PMCID: PMC3977753 DOI: 10.1038/onc.2012.634] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [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] [Received: 09/19/2012] [Revised: 11/16/2012] [Accepted: 11/27/2012] [Indexed: 01/08/2023]
Abstract
ROCK1 and ROCK2 mediate important processes such as cell migration, invasion and metastasis; making them good targets for the development of antitumor agents. Recently, using a fragment-based approach and X-ray crystallography, we reported on the design and synthesis of novel Rho-kinase inhibitors (RKIs). Here, we selected a pair of RKIs, the closely-related structural analogues RKI-18 (potent; IC50 values of 397 nM (ROCK1) and 349 nM (ROCK2)) and RKI-11 (weak/inactive; IC50 values of 38 µM (ROCK1) and 45 µM (ROCK2), as chemical probes and determined their effects on cytoskeleton organization, signaling, apoptosis, anchorage-dependent and –independent growth, migration and invasion. RKI-18 but not RKI-11 suppresses potently the phosphorylation of the ROCK substrate MLC2 in intact human breast, lung, colon and prostate cancer cells. Furthermore, RKI-18 is highly selective at decreasing the levels of P-MLC2 over those of P-Akt, P-S6 and P-Erk ½. RKI-18 suppresses ROCK-mediated actin fiber formation following stimulation with LPA as well as PAK-mediated lamelipodia and filopodia formation following bradykinin or PDGF stimulation. Furthermore, RKI-18 but not RKI-11 inhibits migration, invasion and anchorage-independent growth of human breast cancer cells. The fact that the active ROCK inhibitor RKI-18 but not the inactive closely related structural analogue RKI-11 is effective at suppressing malignant transformation suggests that inhibition of ROCK with RKI-18 results in preventing migration, invasion and anchorage-independent growth. The potential of this class of RKIs as anti tumor agents warrants further advanced preclinical studies.
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Affiliation(s)
- R A Patel
- Drug Discovery Department, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Y Liu
- Drug Discovery Department, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - B Wang
- Drug Discovery Department, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - R Li
- Drug Discovery Department, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - S M Sebti
- 1] Drug Discovery Department, H Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA [2] Departments of Oncologic Sciences and Molecular Medicine, University of South Florida, Tampa, FL, USA
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24
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Gotway MB, Nagai BK, Reddy GP, Patel RA, Higgins CB, Webb WR. Incidentally detected cardiovascular abnormalities on helical CT pulmonary angiography: spectrum of findings. AJR Am J Roentgenol 2001; 176:421-7. [PMID: 11159086 DOI: 10.2214/ajr.176.2.1760421] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- M B Gotway
- Department of Radiology, Thoracic Imaging Section, San Francisco General Hospital, University of California San Francisco, Rm. 1X 55A, Box 1325, 101 Potrero Ave., San Francisco, CA 94110, USA
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25
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Abstract
Hypersensitivity pneumonitis, also known as extrinsic allergic alveolitis, is caused by inhalation of specific environmental organic antigens. This disease may have typical high-resolution CT findings that, in the appropriate clinical setting, can be sufficiently characteristic to allow a confident diagnosis without the need for a lung biopsy. In this pictorial essay, the high-resolution CT patterns of hypersensitivity pneumonitis are illustrated. The authors emphasize the correlation among the radiologic presentation, functional abnormalities, and pathologic findings.
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Affiliation(s)
- R A Patel
- Department of Radiology, University of California at San Francisco, 94143-0628, USA.
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26
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Abstract
Helical CT is being increasingly utilized for the evaluation of suspected pulmonary embolism (PE). Proper scan interpretation depends on the awareness of several diagnostic pitfalls that may simulate PE, including normal bronchovascular structures such as pulmonary veins, bronchi, and lymph nodes, technical considerations such as improper bolus timing and streak artifacts, and patient-related factors such as motion artifacts, pulmonary arterial catheters, and vascular shunts. An understanding of these pitfalls facilitates accurate diagnosis.
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Affiliation(s)
- M B Gotway
- Department of Radiology, University of California at San Francisco, USA
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27
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Parikh PM, Shah SR, Shah SC, Sheth V, Patel RA, Shah KC, Jain PK. Preliminary experience with use of a selective 5HT3 receptor antagonist (ondansetron) to prevent high dose chemotherapy induced emesis. Indian J Cancer 1996; 33:17-20. [PMID: 9063013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Ondansetron was used as an antiemetic along with dexamethasone during 16 cycles of highly or moderately ematogenic chemotherapy. There was major control in two cycles and complete control in the remaining 14. Side effects were minor and did not require discontinuation of the drug. This combination, therefore, appears to be safe and effective in preventing chemotherapy induced emesis.
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Affiliation(s)
- P M Parikh
- Sir Hurkisondas Narrotumdas Hospital, Padmashree Gordhanbapa Chowk, Mumbai, India
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28
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Abstract
We investigated the effect of insulin on phosphatidylinositol (PtdIns) 3-kinase (PtdIns 3-kinase) activity in neuronal cultures to determine if this enzyme is involved with the neurotrophic actions of insulin. Insulin caused a concentration-dependent increase in PtdIns 3-kinase activity in anti-phosphotyrosine immunoprecipitates. The kinase activity was able to phosphorylate PtdIns, PtdIns 4-phosphate, and PtdIns 4,5-bisphosphate. In intact neurons, a 10-min 1 mM insulin treatment in the presence of [32P]orthophosphate increased the levels of both 3-[32P]PtdIns phosphate and 3,4-[32P]PtdIns bisphosphate by 55 and 193%, respectively. This increase was associated with an increase in neurite outgrowth mediated by insulin. Our results indicate that insulin treatment of neuronal cells in primary culture increases PtdIns 3-kinase activity and the formation of the unique D-3-phosphorylated phosphoinositides, suggesting that growth factor-mediated neuronal growth may include the formation of novel phosphoinositide 3-phosphate phospholipids.
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Affiliation(s)
- R A Patel
- Department of Pharmacology, College of Medicine, University of Florida, Gainesville 32610-0627
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29
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Patel RA, Hutt-Fletcher LM, Crews FT. Epstein-Barr virus infectivity of Raji and Molt 4 cells: differences in cellular membrane lipids and apparent microviscosity. Virology 1993; 195:121-31. [PMID: 8391180 DOI: 10.1006/viro.1993.1352] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Infection of lymphocytes by the Epstein-Barr virus (EBV) is initiated by attachment of the major virus glycoprotein gp350/220 to a cell surface glycoprotein, known as CR2 (CD21). In a productive infection the virus envelope fuses with host cell membranes either at the cell surface or within endocytic vesicles. To investigate the relevance of host cell membrane properties in the fusion process, we used the lymphoblastoid cell lines Raji and Molt 4. Both cell lines express CR2 and bind EBV; however, only the Raji cell supports virus-cell fusion. Lipid analysis of the two cell lines indicated that Raji cells had a significantly lower cholesterol to phospholipid molar ratio due to a greater membrane content of phospholipid relative to protein. Determination of cell membrane fluid dynamics by fluorescence polarization indicated that the apparent membrane microviscosity of Molt 4 cells was significantly greater than that of Raji. Increasing Raji cell membrane apparent microviscosity to values similar to those of Molt 4 cells by incubation with cholesteryl-hemisuccinate caused a reduction in EBV fusion with Raji cells. However, experiments designed to allow EBV infection of Molt 4 cells whose plasma membranes had been fluidized were unsuccessful. These studies suggest that the lipid composition and other as yet unidentified factors are involved in entry of EBV into cells.
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Affiliation(s)
- R A Patel
- Department of Pharmacology and Experimental Therapeutics, College of Medicine, University of Florida, Gainesville 32610
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30
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Abstract
Twelve pharmacokinetic methods of estimating lithium maintenance dosage requirements were compared in 21 patients with bipolar illness. Methods which were compared included the single- and multiple-point methods of Perry, 4 non-linear regression and 6 Bayesian methods. The REVOL algorithm was employed for converging on to estimates of clearance and apparent volume of distribution for the non-linear regression and Bayesian methods. Data analysis was based on an evaluation of prediction error as a measure of bias, and absolute prediction error as a measure of precision. In a direct comparison, there were no statistically significant differences in bias or precision between any of the methods.
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Affiliation(s)
- P J Williams
- University of the Pacific School of Pharmacy, Stockton, California
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31
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Browne JL, Patel RA, Huffman CS, Hussey BK. Comparison of pharmacokinetic procedures for dosing lithium based on analysis of prediction error. Drug Intell Clin Pharm 1988; 22:227-31. [PMID: 3366063 DOI: 10.1177/106002808802200310] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Five pharmacokinetic methods for estimating maintenance dosage requirements of lithium carbonate were compared retrospectively in 20 inpatients with acute bipolar illness. Specific pharmacokinetic methods tested included the method of Cooper, the multiple-point method of Perry, the single-point method of Perry, the method of Zetin, and the method of Pepin. Data analysis was based on evaluation of prediction error or the difference between the predicted steady-state lithium concentration and the measured steady-state lithium concentration at equivalent daily doses. Each dosing method was assessed in regard to accuracy and bias of predicted steady-state serum lithium concentrations. Bias was assessed by comparison of the median value of the prediction error with zero. The dosing recommendation based on the Cooper nomogram resulted in a significant positive bias (p less than or equal to 0.05). Intermethod accuracy was assessed by comparison of the absolute prediction errors of each dosing method. Significant differences in accuracy were observed between the method of Pepin when compared with the single-point method of Perry (p less than or equal to 0.05, k-sample sign test). All other comparisons were nonsignificant.
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Affiliation(s)
- J L Browne
- School of Pharmacy, University of North Carolina, Chapel Hill 27514
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32
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Patel RA, Vasavada RC. Transdermal delivery of isoproterenol HCl: an investigation of stability, solubility, partition coefficient, and vehicle effects. Pharm Res 1988; 5:116-9. [PMID: 3247294 DOI: 10.1023/a:1015996319406] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Effects of solubility, partition coefficient, and selected adjuvants (propylene glycol and Azone) on percutaneous penetration of isoproterenol HCl have been investigated using human cadaver skin. Isoproterenol was found to be stable (less than 1% decomposition) for 24 hr at 22 +/- 0.5 degrees C in the pH range 1 to 7 in the following solvents: water, normal saline, propylene glycol and a series of propylene glycol-water mixtures (10, 20, 40, and 60%; v/v); however, decomposition was significant beyond pH 8. In normal saline, the rate of decomposition increased significantly with an increase in temperature to 37 degrees C. The solubility of isoproterenol HCl decreased and its skin/vehicle partition coefficient increased with increasing proportions of propylene glycol in the vehicle, while the product of the solubility and partition coefficient appeared to plateau at 20% propylene glycol in water. Optimal penetration enhancing effects of Azone were seen when incorporated at a concentration of 1% (v/v) in the 20% (v/v) propylene glycol-water blend and, more significantly, when skin was pretreated with pure Azone for 60 min prior to application of the drug formulation.
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Affiliation(s)
- R A Patel
- School of Pharmacy, University of the Pacific, Stockton, California 95211
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33
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Agrawal JB, Patel RA. Surgical management of obstructive jaundice. J Indian Med Assoc 1974; 62:414-6. [PMID: 4448908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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34
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Bapat RD, Patel RA. Stainless stell mesh--a neglected implant for inguinal hernia repair. J Postgrad Med 1974; 20:94-8. [PMID: 4854383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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35
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Patel RA, Vaghaiwalla MR, Desai AP, Parulkar GB. Infective endocarditis. A clinicopathologic review of 45 necropsy patients. J Postgrad Med 1974; 20:80-6. [PMID: 4852422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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36
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Samsi AB, Agrawal JB, Patel RA. Shouldice repair for inguinal hernia. J Postgrad Med 1974; 20:28-34. [PMID: 4600916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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