2
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Lakshmanan I, Marimuthu S, Chaudhary S, Seshacharyulu P, Rachagani S, Muniyan S, Chirravuri-Venkata R, Atri P, Rauth S, Nimmakayala RK, Siddiqui JA, Gautam SK, Shah A, Natarajan G, Parte S, Bhyravbhatla N, Mallya K, Haridas D, Talmon GA, Smith LM, Kumar S, Ganti AK, Jain M, Ponnusamy MP, Batra SK. Muc16 depletion diminishes KRAS-induced tumorigenesis and metastasis by altering tumor microenvironment factors in pancreatic ductal adenocarcinoma. Oncogene 2022; 41:5147-5159. [PMID: 36271032 PMCID: PMC9841597 DOI: 10.1038/s41388-022-02493-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 09/23/2022] [Accepted: 09/28/2022] [Indexed: 01/19/2023]
Abstract
MUC16, membrane-bound mucin, plays an oncogenic role in pancreatic ductal adenocarcinoma (PDAC). However, the pathological role of MUC16 in the PDAC progression, tumor microenvironment, and metastasis in cooperation with KrasG12D and Trp53R172H mutations remains unknown. Deletion of Muc16 with activating mutations KrasG12D/+ and Trp53R172H/+ in mice significantly decreased progression and prolonged overall survival in KrasG12D/+; Trp53R172H/+; Pdx-1-Cre; Muc16-/- (KPCM) and KrasG12D/+; Pdx-1-Cre; Muc16-/- (KCM), as compared to KrasG12D/+; Trp53R172H/+; Pdx-1-Cre (KPC) and KrasG12D/+; Pdx-1-Cre (KC) mice, respectively. Muc16 knockout pancreatic tumor (KPCM) displays decreased tumor microenvironment factors and significantly reduced incidence of liver and lung metastasis compared to KPC. Furthermore, in silico data analysis showed a positive correlation of MUC16 with activated stroma and metastasis-associated genes. KPCM mouse syngeneic cells had significantly lower metastatic and endothelial cell binding abilities than KPC cells. Similarly, KPCM organoids significantly decreased the growth rate compared to KPC organoids. Interestingly, RNA-seq data revealed that the cytoskeletal proteins Actg2, Myh11, and Pdlim3 were downregulated in KPCM tumors. Further knockdown of these genes showed reduced metastatic potential. Overall, our results demonstrate that Muc16 alters the tumor microenvironment factors during pancreatic cancer progression and metastasis by changing the expression of Actg2, Myh11, and Pdlim3 genes.
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Affiliation(s)
- Imayavaramban Lakshmanan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Saravanakumar Marimuthu
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Sanjib Chaudhary
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Parthasarathy Seshacharyulu
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Satyanarayana Rachagani
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Sakthivel Muniyan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Ramakanth Chirravuri-Venkata
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Pranita Atri
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Sanchita Rauth
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Rama Krishna Nimmakayala
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Jawed Akhtar Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Shailendra K Gautam
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Ashu Shah
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Gopalakrishnan Natarajan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Seema Parte
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Namita Bhyravbhatla
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Kavita Mallya
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Dhanya Haridas
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Geoffrey A Talmon
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, 68198-5900, USA
| | - Lynette M Smith
- Department of Biostatistics, College of Public Health, University of Nebraska Medical Center, Omaha, NE, 68198-4375, USA
| | - Sushil Kumar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Apar Kishor Ganti
- Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
- Division of Oncology-Hematology, Department of Internal Medicine, VA Nebraska Western Iowa Health Care System, and University of Nebraska Medical Center, Omaha, NE, 68105-1850, USA
| | - Maneesh Jain
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
- Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Moorthy P Ponnusamy
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
- Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
- Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA.
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3
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da Silva L, Jiang J, Perkins C, Atanasova KR, Bray JK, Bulut G, Azevedo-Pouly A, Campbell-Thompson M, Yang X, Hakimjavadi H, Chamala S, Ratnayake R, Gharaibeh RZ, Li C, Luesch H, Schmittgen TD. Pharmacological inhibition and reversal of pancreatic acinar ductal metaplasia. Cell Death Discov 2022; 8:378. [PMID: 36055991 PMCID: PMC9440259 DOI: 10.1038/s41420-022-01165-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 08/04/2022] [Accepted: 08/11/2022] [Indexed: 01/04/2023] Open
Abstract
Pancreatic acinar cells display a remarkable degree of plasticity and can dedifferentiate into ductal-like progenitor cells by a process known as acinar ductal metaplasia (ADM). ADM is believed to be one of the earliest precursor lesions toward the development of pancreatic ductal adenocarcinoma and maintaining the pancreatic acinar cell phenotype suppresses tumor formation. The effects of a novel pStat3 inhibitor (LLL12B) and the histone deacetylase (HDAC) inhibitor trichostatin A (TSA) were investigated using 3-D cultures from p48Cre/+ and p48Cre/+LSL-KrasG12D/+ (KC) mice. LLL12B and TSA inhibited ADM in both KC and p48Cre/+ mouse pancreatic organoids. Furthermore, treatment with LLL12B or TSA on dedifferentiated acini from p48Cre/+ and KC mice that had undergone ADM produced morphologic and gene expression changes that suggest a reversal of ADM. Validation experiments using qRT-PCR (p48Cre/+ and KC) and RNA sequencing (KC) of the LLL12B and TSA treated cultures showed that the ADM reversal was more robust for the TSA treatments. Pathway analysis showed that TSA inhibited Spink1 and PI3K/AKT signaling during ADM reversal. The ability of TSA to reverse ADM was also observed in primary human acinar cultures. We report that pStat3 and HDAC inhibition can attenuate ADM in vitro and reverse ADM in the context of wild-type Kras. Our findings suggest that pharmacological inhibition or reversal of pancreatic ADM represents a potential therapeutic strategy for blocking aberrant ductal reprogramming of acinar cells.
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Affiliation(s)
- Lais da Silva
- Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Jinmai Jiang
- Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Corey Perkins
- Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Kalina Rosenova Atanasova
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
- Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, USA
| | - Julie K Bray
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Gamze Bulut
- Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Ana Azevedo-Pouly
- Department of Surgery, University of Arkansas for Medical Sciences, University of Florida, Gainesville, FL, USA
| | - Martha Campbell-Thompson
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Xiaozhi Yang
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Hesamedin Hakimjavadi
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Srikar Chamala
- Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Ranjala Ratnayake
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
- Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, USA
| | - Raad Z Gharaibeh
- Department of Medicine, University of Florida, Gainesville, FL, USA
- Department of Molecular Genetics and Microbiology, University of Florida, Gainesville, FL, USA
| | - Chenglong Li
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
- Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, USA
| | - Hendrik Luesch
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
- Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, FL, USA
| | - Thomas D Schmittgen
- Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL, USA.
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4
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Cui Zhou D, Jayasinghe RG, Chen S, Herndon JM, Iglesia MD, Navale P, Wendl MC, Caravan W, Sato K, Storrs E, Mo CK, Liu J, Southard-Smith AN, Wu Y, Naser Al Deen N, Baer JM, Fulton RS, Wyczalkowski MA, Liu R, Fronick CC, Fulton LA, Shinkle A, Thammavong L, Zhu H, Sun H, Wang LB, Li Y, Zuo C, McMichael JF, Davies SR, Appelbaum EL, Robbins KJ, Chasnoff SE, Yang X, Reeb AN, Oh C, Serasanambati M, Lal P, Varghese R, Mashl JR, Ponce J, Terekhanova NV, Yao L, Wang F, Chen L, Schnaubelt M, Lu RJH, Schwarz JK, Puram SV, Kim AH, Song SK, Shoghi KI, Lau KS, Ju T, Chen K, Chatterjee D, Hawkins WG, Zhang H, Achilefu S, Chheda MG, Oh ST, Gillanders WE, Chen F, DeNardo DG, Fields RC, Ding L. Spatially restricted drivers and transitional cell populations cooperate with the microenvironment in untreated and chemo-resistant pancreatic cancer. Nat Genet 2022; 54:1390-1405. [PMID: 35995947 PMCID: PMC9470535 DOI: 10.1038/s41588-022-01157-1] [Citation(s) in RCA: 58] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 07/13/2022] [Indexed: 12/13/2022]
Abstract
Pancreatic ductal adenocarcinoma is a lethal disease with limited treatment options and poor survival. We studied 83 spatial samples from 31 patients (11 treatment-naïve and 20 treated) using single-cell/nucleus RNA sequencing, bulk-proteogenomics, spatial transcriptomics and cellular imaging. Subpopulations of tumor cells exhibited signatures of proliferation, KRAS signaling, cell stress and epithelial-to-mesenchymal transition. Mapping mutations and copy number events distinguished tumor populations from normal and transitional cells, including acinar-to-ductal metaplasia and pancreatic intraepithelial neoplasia. Pathology-assisted deconvolution of spatial transcriptomic data identified tumor and transitional subpopulations with distinct histological features. We showed coordinated expression of TIGIT in exhausted and regulatory T cells and Nectin in tumor cells. Chemo-resistant samples contain a threefold enrichment of inflammatory cancer-associated fibroblasts that upregulate metallothioneins. Our study reveals a deeper understanding of the intricate substructure of pancreatic ductal adenocarcinoma tumors that could help improve therapy for patients with this disease.
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Affiliation(s)
- Daniel Cui Zhou
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Reyka G Jayasinghe
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Siqi Chen
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - John M Herndon
- Department of Surgery, Washington University in St Louis, St Louis, MO, USA
- Siteman Cancer Center, Washington University in St Louis, St Louis, MO, USA
| | - Michael D Iglesia
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Pooja Navale
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, Washington University in St Louis, St Louis, MO, USA
| | - Michael C Wendl
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
- Department of Genetics, Washington University in St Louis, St Louis, MO, USA
- Department of Mathematics, Washington University in St Louis, St Louis, MO, USA
| | - Wagma Caravan
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Kazuhito Sato
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Erik Storrs
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Chia-Kuei Mo
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Jingxian Liu
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Austin N Southard-Smith
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Yige Wu
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Nataly Naser Al Deen
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - John M Baer
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, Washington University in St Louis, St Louis, MO, USA
| | - Robert S Fulton
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Matthew A Wyczalkowski
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Ruiyang Liu
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Catrina C Fronick
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Lucinda A Fulton
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Andrew Shinkle
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Lisa Thammavong
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Houxiang Zhu
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Hua Sun
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Liang-Bo Wang
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Yize Li
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Chong Zuo
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Joshua F McMichael
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Sherri R Davies
- Department of Surgery, Washington University in St Louis, St Louis, MO, USA
| | | | - Keenan J Robbins
- Department of Surgery, Washington University in St Louis, St Louis, MO, USA
- Siteman Cancer Center, Washington University in St Louis, St Louis, MO, USA
| | - Sara E Chasnoff
- Department of Surgery, Washington University in St Louis, St Louis, MO, USA
| | - Xiaolu Yang
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Ashley N Reeb
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- Department of Otolaryngology-Head & Neck Surgery, Washington University in St Louis, St Louis, MO, USA
| | - Clara Oh
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Mamatha Serasanambati
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Preet Lal
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Rajees Varghese
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Jay R Mashl
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Jennifer Ponce
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Nadezhda V Terekhanova
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Lijun Yao
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Fang Wang
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lijun Chen
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michael Schnaubelt
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Rita Jui-Hsien Lu
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA
| | - Julie K Schwarz
- Siteman Cancer Center, Washington University in St Louis, St Louis, MO, USA
- Department of Radiation Oncology, Washington University in St Louis, St Louis, MO, USA
- Department of Cell Biology and Physiology, Washington University in St Louis, St Louis, MO, USA
| | - Sidharth V Puram
- Department of Otolaryngology-Head & Neck Surgery, Washington University in St Louis, St Louis, MO, USA
| | - Albert H Kim
- Siteman Cancer Center, Washington University in St Louis, St Louis, MO, USA
- Department of Neurological Surgery, Washington University in St Louis, St Louis, MO, USA
| | - Sheng-Kwei Song
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- Department of Radiology, Washington University in St Louis, St Louis, MO, USA
| | - Kooresh I Shoghi
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- Department of Radiology, Washington University in St Louis, St Louis, MO, USA
| | - Ken S Lau
- Department of Cell and Developmental Biology and Epithelial Biology Center, Vanderbilt University School of Medicine, Vanderbilt, TN, USA
| | - Tao Ju
- Department of Computer Science and Engineering, Washington University in St Louis, St Louis, MO, USA
| | - Ken Chen
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Deyali Chatterjee
- Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - William G Hawkins
- Department of Surgery, Washington University in St Louis, St Louis, MO, USA
- Siteman Cancer Center, Washington University in St Louis, St Louis, MO, USA
| | - Hui Zhang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Samuel Achilefu
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- Department of Radiology, Washington University in St Louis, St Louis, MO, USA
| | - Milan G Chheda
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- Siteman Cancer Center, Washington University in St Louis, St Louis, MO, USA
| | - Stephen T Oh
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
- Department of Pathology and Immunology, Washington University in St Louis, St Louis, MO, USA
| | - William E Gillanders
- Department of Surgery, Washington University in St Louis, St Louis, MO, USA
- Siteman Cancer Center, Washington University in St Louis, St Louis, MO, USA
| | - Feng Chen
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - David G DeNardo
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA.
- Siteman Cancer Center, Washington University in St Louis, St Louis, MO, USA.
- Department of Pathology and Immunology, Washington University in St Louis, St Louis, MO, USA.
| | - Ryan C Fields
- Department of Surgery, Washington University in St Louis, St Louis, MO, USA.
- Siteman Cancer Center, Washington University in St Louis, St Louis, MO, USA.
| | - Li Ding
- Department of Medicine, Washington University in St Louis, St Louis, MO, USA.
- McDonnell Genome Institute, Washington University in St Louis, St Louis, MO, USA.
- Siteman Cancer Center, Washington University in St Louis, St Louis, MO, USA.
- Department of Genetics, Washington University in St Louis, St Louis, MO, USA.
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