1
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Aguilar EN, Sagar S, Murray BR, Rajesh C, Lei EK, Michaud SA, Goodlett DR, Caffrey TC, Grandgenett PM, Swanson B, Brooks TM, Black AR, van Faassen H, Hussack G, Henry KA, Hollingsworth MA, Brooks CL, Radhakrishnan P. Structural Basis for Multivalent MUC16 Recognition and Robust Anti-Pancreatic Cancer Activity of Humanized Antibody AR9.6. Mol Cancer Ther 2024:734901. [PMID: 38394685 DOI: 10.1158/1535-7163.mct-23-0868] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/25/2024] [Accepted: 02/21/2024] [Indexed: 02/25/2024]
Abstract
Mucin-16 (MUC16) is a target for antibody-mediated immunotherapy in pancreatic ductal adenocarcinoma (PDAC) amongst other malignancies. The MUC16 specific monoclonal antibody AR9.6 has shown promise for PDAC immunotherapy and imaging. Here, we report the structural and biological characterization of the humanized AR9.6 antibody (huAR9.6). The structure of huAR9.6 was determined in complex with a MUC16 SEA (Sea urchin sperm, Enterokinase, Agrin) domain. Binding of huAR9.6 to recombinant, shed, and cell-surface MUC16 was characterized, and anti-PDAC activity was evaluated in vitro and in vivo. huAR9.6 bound a discontinuous, SEA domain epitope with an affinity of ~90 nM. Binding affinity depended on the specific SEA domain(s) present, and glycosylation enhanced affinity by 3-7-fold driven by favorable entropy and enthalpy and via distinct transition state thermodynamic pathways. Treatment with huAR9.6 reduced the in vitro growth, migration, invasion, and clonogenicity of MUC16-positive PDAC cells and patient-derived organoids (PDOs). HuAR9.6 blocked MUC16-mediated ErbB and AKT activation in PDAC cells, PDOs and patient-derived xenografts and induced antibody-dependent cellular cytotoxicity and complement-dependent cytotoxicity. More importantly, huAR9.6 treatment caused substantial PDAC regression in subcutaneous and orthotopic tumor models. The mechanism of action of huAR9.6 may depend on dense avid binding to homologous SEA domains on MUC16. The results of this study validate the translational therapeutic potential of huAR9.6 against MUC16-positive PDACs.
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Affiliation(s)
| | - Satish Sagar
- University of Nebraska Medical Center, Omaha, NE, United States
| | | | | | - Eric K Lei
- National Research Council Canada, Canada
| | | | | | | | | | - Benjamin Swanson
- University of Nebraska Medical Center, Omaha, Nebraska, United States
| | - Teresa M Brooks
- California State University, Fresno, Fresno, CA, United States
| | | | | | - Greg Hussack
- National Research Council Canada, Ottawa, Canada
| | | | | | - Cory L Brooks
- California State University, Fresno, Fresno, CA, United States
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2
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Yu S, Luan Y, Tang S, Abazarikia A, Dong R, Caffrey TC, Hollingsworth MA, Oupicky D, Kim S. Uncovering Tumor-Promoting Roles of Activin A in Pancreatic Ductal Adenocarcinoma. Adv Sci (Weinh) 2023; 10:e2207010. [PMID: 37083240 PMCID: PMC10238186 DOI: 10.1002/advs.202207010] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 11/28/2022] [Revised: 03/22/2023] [Indexed: 05/03/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers with high incidence rates of metastasis and cachexia. High circulating activin A, a homodimer of inhibin βA subunits that are encoded by INHBA gene, predicts poor survival among PDAC patients. However, it still raises the question of whether activin A suppression renders favorable PDAC outcomes. Here, the authors demonstrate that activin A is abundantly detected in tumor and stromal cells on PDAC tissue microarray and mouse PDAC sections. In orthotopic male mice, activin A suppression, which is acquired by tumor-targeted Inhba siRNA using cholesterol-modified polymeric nanoparticles, retards tumor growth/metastasis and cachexia and improves survival when compared to scramble siRNA-treated group. Histologically, activin A suppression coincides with decreased expression of proliferation marker Ki67 but increased accumulation of α-SMAhigh fibroblasts and cytotoxic T cells in the tumors. In vitro data demonstrate that activin A promotes KPC cell proliferation and induces the downregulation of α-SMA and upregulation of IL-6 in pancreatic stellate cells (PSC) in the SMAD3-dependent mechanism. Moreover, conditioned media from activin A-stimulated PSC promoted KPC cell growth. Collectively, our data provide a mechanistic basis for tumor-promoting roles of activin A and support therapeutic potentials of tumor activin A suppression for PDAC.
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Affiliation(s)
- Seok‐Yeong Yu
- Olson Center for Women's HealthDepartment of Obstetrics and GynecologyCollege of MedicineUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Yi Luan
- Olson Center for Women's HealthDepartment of Obstetrics and GynecologyCollege of MedicineUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Siyuan Tang
- Center for Drug Delivery and NanomedicineDepartment of Pharmaceutical SciencesCollege of PharmacyUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Amirhossein Abazarikia
- Olson Center for Women's HealthDepartment of Obstetrics and GynecologyCollege of MedicineUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Rosemary Dong
- Olson Center for Women's HealthDepartment of Obstetrics and GynecologyCollege of MedicineUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Thomas C. Caffrey
- Eppley Institute for Research in Cancer and Allied DiseasesUniversity of Nebraska Medical CenterOmahaNE68198USA
- Fred & Buffett Cancer CenterUniversity of Nebraska Medical CenterOmahaNEUSA
| | - Michael A. Hollingsworth
- Eppley Institute for Research in Cancer and Allied DiseasesUniversity of Nebraska Medical CenterOmahaNE68198USA
- Fred & Buffett Cancer CenterUniversity of Nebraska Medical CenterOmahaNEUSA
| | - David Oupicky
- Center for Drug Delivery and NanomedicineDepartment of Pharmaceutical SciencesCollege of PharmacyUniversity of Nebraska Medical CenterOmahaNEUSA
- Fred & Buffett Cancer CenterUniversity of Nebraska Medical CenterOmahaNEUSA
| | - So‐Youn Kim
- Olson Center for Women's HealthDepartment of Obstetrics and GynecologyCollege of MedicineUniversity of Nebraska Medical CenterOmahaNEUSA
- Center for Drug Delivery and NanomedicineDepartment of Pharmaceutical SciencesCollege of PharmacyUniversity of Nebraska Medical CenterOmahaNEUSA
- Fred & Buffett Cancer CenterUniversity of Nebraska Medical CenterOmahaNEUSA
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3
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Evrard YA, Eugeni M, Ahalt-Gottholm M, Bonomi C, Borgel S, Caffrey TC, Carter J, Chang TC, Chen L, Cooper K, Das B, Delaney E, Dougherty K, Duregon E, Ecker S, Geraghty J, Gibson M, Hicks L, Hull J, Veldt SI, Jiwani S, Karlovich CA, Loewenstein J, Mallow C, McGlynn C, Mills J, Miner T, Schneider J, Shearer T, Styers S, Uzelac S, Grandgenett P, Hollingsworth M, Hooper JE, Williams PM, Hollingshead M, Doroshow JH. Abstract 3120: Method development for generation of PDX models from rapid autopsy samples for the NCI patient-derived models repository. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-3120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
NCI’s Patient-Derived Models Repository (NCI PDMR; pdmr.cancer.gov) has developed a variety of patient-derived models across most solid tumor histologies. These models are early passage, genetically characterized and associated with limited patient treatment history. As part of this effort, the NCI PDMR worked with the University of Nebraska Medical Center Rapid Autopsy Program and Johns Hopkins University Legacy Gift Rapid Autopsy Program to develop and optimize methods for collection, processing, and shipping of autopsy tumor material to maintain viability during overnight transit for use in patient-derived model development. These methods have been successfully transferred to two other participating rapid autopsy programs. To date, 412 autopsy tumor samples from 76 consented patients have been received for model development; 348 shipped overnight in media for next day implantation into NSG host mice and 64 cryopreserved prior to shipping for a comparative assessment of take-rate versus fresh tumor samples. On average 3-8 tumor samples, primary and metastatic, were collected post-mortem from the truncal region of each patient. Histologies include Pancreatic adenocarcinoma (n=43), Cholangiocarcinoma (n=6), Prostate adenocarcinoma (n=6), and 21 others with 1-2 patients/histology. The overall age range of enrolled patients was 5-88yo. The post-mortem cold ischemic time for collections ranged from 1.5 to 20 hours with a median of 3h (avg. 3.75h; outlier >11h removed). Collection methods were optimized to reduce contamination and increase viability of tumor tissues for successful PDX model generation. Of 348 fresh tumor samples collected to date, 69 PDX models from 33 patients have been generated (range 1-6 models/patient) and an additional 55 samples are being monitored for growth in passage 0. The largest public single-patient PDX model sets are for melanoma (899932-113-R, n=6) and two pancreatic adenocarcinomas (521955-158-R, n=6, 217524-143-R, n=4). Important methods for reducing contaminants in autopsy tumor material include sterilization of the surface of the body prior to opening, use of sterile fields, using separate sterile instruments for each collection site, rinsing the surface of the resected tumor tissue, and use of antibiotics in the collection media. The now established SOPs are publicly available on the NCI PDMR website (pdmr.cancer.gov/sops). We recommend incorporating as many of these methods as possible within the limitations of your individual site. Of the 69 models developed to date, 48 are publicly available from the NCI PDMR while the rest are undergoing quality control process prior to public release. Models developed from autopsy material provide a research tool to investigate tumor evolution, differences between primary and metastatic lesions, and assessment of differences in therapeutic response based on differences in the tumor biology.
Citation Format: Yvonne A. Evrard, Michelle Eugeni, Michelle Ahalt-Gottholm, Carrie Bonomi, Suzanne Borgel, Thomas C. Caffrey, John Carter, Ting-Chia Chang, Li Chen, Kevin Cooper, Biswajit Das, Emily Delaney, Kelly Dougherty, Eleonora Duregon, Stephanie Ecker, Joe Geraghty, Marion Gibson, Lauren Hicks, Jenna Hull, Sharon Int Veldt, Shahanawaz Jiwani, Chris A. Karlovich, Jade Loewenstein, Candace Mallow, Chelsea McGlynn, Justine Mills, Tiffanie Miner, Jowaly Schneider, Tia Shearer, Savanna Styers, Shannon Uzelac, Paul Grandgenett, Michael Hollingsworth, Jody E. Hooper, P. Mickey Williams, Melinda Hollingshead, James H. Doroshow. Method development for generation of PDX models from rapid autopsy samples for the NCI patient-derived models repository [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 3120.
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Affiliation(s)
- Yvonne A. Evrard
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | | | | | - Carrie Bonomi
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Suzanne Borgel
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | | | - John Carter
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Ting-Chia Chang
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Li Chen
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Kevin Cooper
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Biswajit Das
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Emily Delaney
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Kelly Dougherty
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | | | - Stephanie Ecker
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Joe Geraghty
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Marion Gibson
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Lauren Hicks
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Jenna Hull
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Sharon Int Veldt
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | | | | | - Jade Loewenstein
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Candace Mallow
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Chelsea McGlynn
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Justine Mills
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Tiffanie Miner
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | | | - Tia Shearer
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Savanna Styers
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
| | - Shannon Uzelac
- 1Frederick National Laboratory for Cancer Research, Frederick, MD
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4
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Xu PC, You M, Yu SY, Luan Y, Eldani M, Caffrey TC, Grandgenett PM, O'Connell KA, Shukla SK, Kattamuri C, Hollingsworth MA, Singh PK, Thompson TB, Chung S, Kim SY. Visceral adipose tissue remodeling in pancreatic ductal adenocarcinoma cachexia: the role of activin A signaling. Sci Rep 2022; 12:1659. [PMID: 35102236 PMCID: PMC8803848 DOI: 10.1038/s41598-022-05660-7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 01/10/2022] [Indexed: 12/11/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) patients display distinct phenotypes of cachexia development, with either adipose tissue loss preceding skeletal muscle wasting or loss of only adipose tissue. Activin A levels were measured in serum and analyzed in tumor specimens of both a cohort of Stage IV PDAC patients and the genetically engineered KPC mouse model. Our data revealed that serum activin A levels were significantly elevated in Stage IV PDAC patients in comparison to age-matched non-cancer patients. Little is known about the role of activin A in adipose tissue wasting in the setting of PDAC cancer cachexia. We established a correlation between elevated activin A and remodeling of visceral adipose tissue. Atrophy and fibrosis of visceral adipose tissue was examined in omental adipose tissue of Stage IV PDAC patients and gonadal adipose tissue of an orthotopic mouse model of PDAC. Remarkably, white visceral adipose tissue from both PDAC patients and mice exhibited decreased adipocyte diameter and increased fibrotic deposition. Strikingly, expression of thermogenic marker UCP1 in visceral adipose tissues of PDAC patients and mice remained unchanged. Thus, we propose that activin A signaling could be relevant to the acceleration of visceral adipose tissue wasting in PDAC-associated cachexia.
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Affiliation(s)
- Pauline C Xu
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, College of Medicine, University of Nebraska Medical Center, 985860 Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Mikyoung You
- Department of Nutrition, School of Public Health and Health Sciences, University of Massachusetts Amherst, 211 Chenoweth Laboratory, 100 Holdsworth Way, Amherst, MA, 01003-9282, USA
| | - Seok-Yeong Yu
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, College of Medicine, University of Nebraska Medical Center, 985860 Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Yi Luan
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, College of Medicine, University of Nebraska Medical Center, 985860 Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Maya Eldani
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, College of Medicine, University of Nebraska Medical Center, 985860 Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Thomas C Caffrey
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Paul M Grandgenett
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Kelly A O'Connell
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Surendra K Shukla
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Chandramohan Kattamuri
- Department of Molecular Genetics, Biochemistry, and Microbiology, College of Medicine, University of Cincinnati, Cincinnati, OH, 68198, USA
| | - Michael A Hollingsworth
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Pankaj K Singh
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Thomas B Thompson
- Department of Molecular Genetics, Biochemistry, and Microbiology, College of Medicine, University of Cincinnati, Cincinnati, OH, 68198, USA
| | - Soonkyu Chung
- Department of Nutrition, School of Public Health and Health Sciences, University of Massachusetts Amherst, 211 Chenoweth Laboratory, 100 Holdsworth Way, Amherst, MA, 01003-9282, USA.
| | - So-Youn Kim
- Department of Obstetrics and Gynecology, Olson Center for Women's Health, College of Medicine, University of Nebraska Medical Center, 985860 Nebraska Medical Center, Omaha, NE, 68198, USA.
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5
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Markov SD, Caffrey TC, O'Connell KA, Grunkemeyer JA, Shin S, Hanson R, Patil PP, Shukla SK, Gonzalez D, Crawford AJ, Vance KE, Huang Y, Eberle KC, Radhakrishnan P, Grandgenett PM, Singh PK, Madiyalakan R, Daniels-Wells TR, Penichet ML, Nicodemus CF, Poole JA, Jaffee EM, Hollingsworth MA, Mehla K. IgE-Based Therapeutic Combination Enhances Antitumor Response in Preclinical Models of Pancreatic Cancer. Mol Cancer Ther 2021; 20:2457-2468. [PMID: 34625505 PMCID: PMC8762606 DOI: 10.1158/1535-7163.mct-21-0368] [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: 04/28/2021] [Revised: 08/11/2021] [Accepted: 09/30/2021] [Indexed: 11/16/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) represents 3% of all cancer cases and 7% of all cancer deaths in the United States. Late diagnosis and inadequate response to standard chemotherapies contribute to an unfavorable prognosis and an overall 5-year survival rate of less than 10% in PDAC. Despite recent advances in tumor immunology, tumor-induced immunosuppression attenuates the immunotherapy response in PDAC. To date, studies have focused on IgG-based therapeutic strategies in PDAC. With the recent interest in IgE-based therapies in multiple solid tumors, we explored the MUC1-targeted IgE potential against pancreatic cancer. Our study demonstrates the notable expression of FceRI (receptor for IgE antibody) in tumors from PDAC patients. Our study showed that administration of MUC1 targeted-IgE (mouse/human chimeric anti-MUC1.IgE) antibody at intermittent levels in combination with checkpoint inhibitor (anti-PD-L1) and TLR3 agonist (PolyICLC) induces a robust antitumor response that is dependent on NK and CD8 T cells in pancreatic tumor-bearing mice. Subsequently, our study showed that the antigen specificity of the IgE antibody plays a vital role in executing the antitumor response as nonspecific IgE, induced by ovalbumin (OVA), failed to restrict tumor growth in pancreatic tumor-bearing mice. Utilizing the OVA-induced allergic asthma-PDAC model, we demonstrate that allergic phenotype induced by OVA cannot restrain pancreatic tumor growth in orthotopic tumor-bearing mice. Together, our data demonstrate the novel tumor protective benefits of tumor antigen-specific IgE-based therapeutics in a preclinical model of pancreatic cancer, which can open new avenues for future clinical interventions.
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Affiliation(s)
- Spas Dimitrov Markov
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Thomas C Caffrey
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Kelly A O'Connell
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - James A Grunkemeyer
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Simon Shin
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Ryan Hanson
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Prathamesh P Patil
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Surendra K Shukla
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Daisy Gonzalez
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Ayrianne J Crawford
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Krysten E Vance
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Ying Huang
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Kirsten C Eberle
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Prakash Radhakrishnan
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Paul M Grandgenett
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Pankaj K Singh
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | | | - Tracy R Daniels-Wells
- Division of Surgical Oncology, Department of Surgery, University of California in Los Angeles (UCLA), Los Angeles, California
| | - Manuel L Penichet
- Division of Surgical Oncology, Department of Surgery and Department of Microbiology, Immunology and Molecular Genetics; The Molecular Biology Institute; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California
| | | | - Jill A Poole
- Allergy and Immunology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska
| | - Elizabeth M Jaffee
- Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore Maryland
| | - Michael A Hollingsworth
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Kamiya Mehla
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska.
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Sagar S, Leiphrakpam PD, Thomas D, McAndrews KL, Caffrey TC, Swanson BJ, Clausen H, Wandall HH, Hollingsworth MA, Radhakrishnan P. MUC4 enhances gemcitabine resistance and malignant behaviour in pancreatic cancer cells expressing cancer-associated short O-glycans. Cancer Lett 2021; 503:91-102. [PMID: 33485947 PMCID: PMC7981252 DOI: 10.1016/j.canlet.2021.01.015] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 12/18/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is highly lethal. MUC4 (mucin4) is a heavily glycosylated protein aberrantly expressed in PDAC and promotes tumorigenesis via an unknown mechanism. To assess this, we genetically knocked out (KO) MUC4 in PDAC cells that did not express and did express truncated O-glycans (Tn/STn) using CRISPR/Cas9 technology. We found that MUC4 knockout cells possess less tumorigenicity in vitro and in vivo, which was further reduced in PDAC cells that express aberrant overexpression of truncated O-glycans. Also, MUC4KO cells showed a further reduction of epidermal growth factor receptors (ErbB) and their downstream signaling pathways in truncated O-glycan expressing PDAC cells. Tn-MUC4 specific 3B11 antibody inhibited MUC4-induced ErbB receptor and its downstream signaling cascades. MUC4 knockout differentially regulates apoptosis and cell cycle arrest in branched and truncated O-glycan expressing PDAC cells. Additionally, MUC4KO cells were found to be more sensitive to gemcitabine treatment. They possessed the upregulated expression of hENT1 and hCNT3 compared to parental cells, which were further affected in cells with aberrant O-glycosylation. Taken together, our results indicate that MUC4 enhances the malignant properties and gemcitabine resistance in PDAC tumors that aberrantly overexpress truncated O-glycans via altering ErbB/AKT signaling cascades and expression of nucleoside transporters, respectively.
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Affiliation(s)
- Satish Sagar
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Pramila D Leiphrakpam
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Divya Thomas
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Kyle L McAndrews
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Thomas C Caffrey
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Benjamin J Swanson
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Henrik Clausen
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, University of Copenhagen, DK-2200, Copenhagen N, Denmark
| | - Hans H Wandall
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, University of Copenhagen, DK-2200, Copenhagen N, Denmark
| | - Michael A Hollingsworth
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Prakash Radhakrishnan
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
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7
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Nimmakayala RK, Leon F, Rachagani S, Rauth S, Nallasamy P, Marimuthu S, Shailendra GK, Chhonker YS, Chugh S, Chirravuri R, Gupta R, Mallya K, Prajapati DR, Lele SM, C Caffrey T, L Grem J, Grandgenett PM, Hollingsworth MA, Murry DJ, Batra SK, Ponnusamy MP. Metabolic programming of distinct cancer stem cells promotes metastasis of pancreatic ductal adenocarcinoma. Oncogene 2021; 40:215-231. [PMID: 33110235 PMCID: PMC10041665 DOI: 10.1038/s41388-020-01518-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 10/02/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) metastasizes to distant organs, which is the primary cause of mortality; however, specific features mediating organ-specific metastasis remain unexplored. Emerging evidence demonstrates that cancer stem cells (CSCs) and cellular metabolism play a pivotal role in metastasis. Here we investigated the role of distinct subtypes of pancreatic CSCs and their metabolomic signatures in organ-specific metastatic colonization. We found that PDAC consists of ALDH+/CD133+ and drug-resistant (MDR1+) subtypes of CSCs with specific metabolic and stemness signatures. Human PDAC tissues with gemcitabine treatment, autochthonous mouse tumors from KrasG12D; Pdx1-Cre (KC) and KrasG12D; Trp53R172H; Pdx-1 Cre (KPC) mice, and KPC- Liver/Lung metastatic cells were used to evaluate the CSC, EMT (epithelial-to-mesenchymal transition), and metabolic profiles. A strong association was observed between distinct CSC subtypes and organ-specific colonization. The liver metastasis showed drug-resistant CSC- and EMT-like phenotype with aerobic glycolysis and fatty acid β-oxidation-mediated oxidative (glyco-oxidative) metabolism. On the contrary, lung metastasis displayed ALDH+/CD133+ and MET-like phenotype with oxidative metabolism. These results were obtained by evaluating FACS-based side population (SP), autofluorescence (AF+) and Alde-red assays for CSCs, and Seahorse-based oxygen consumption rate (OCR), extracellular acidification rate (ECAR), and fatty acid β-oxidation (FAO)-mediated OCR assays for metabolic features along with specific gene signatures. Further, we developed in vitro human liver and lung PDAC metastasis models by using a combination of liver or lung decellularized scaffolds, a co-culture, and a sphere culture methods. PDAC cells grown in the liver-mimicking model showed the enrichment of MDR1+ and CPT1A+ populations, whereas the PDAC cells grown in the lung-mimicking environment showed the enrichment of ALDH+/CD133+ populations. In addition, we observed significantly elevated expression of ALDH1 in lung metastasis and MDR1/LDH-A expression in liver metastasis compared to human primary PDAC tumors. Our studies elucidate that distinct CSCs adapt unique metabolic signatures for organotropic metastasis, which will pave the way for the development of targeted therapy for PDAC metastasis.
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Affiliation(s)
- Rama Krishna Nimmakayala
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Frank Leon
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Satyanarayana Rachagani
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Sanchita Rauth
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Palanisamy Nallasamy
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Saravanakumar Marimuthu
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Gautam K Shailendra
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Yashpal S Chhonker
- Department of Pharmacy Practice and Science, College of Pharmacy, University of Nebraska Medical Center, 986145 Nebraska Medical Center, Omaha, NE, 68198-6145, USA
| | - Seema Chugh
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Ramakanth Chirravuri
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Rohitesh Gupta
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Kavita Mallya
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA
| | - Dipakkumar R Prajapati
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Subodh M Lele
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Thomas C Caffrey
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jean L Grem
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Paul M Grandgenett
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Michael A Hollingsworth
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Daryl J Murry
- Department of Pharmacy Practice and Science, College of Pharmacy, University of Nebraska Medical Center, 986145 Nebraska Medical Center, Omaha, NE, 68198-6145, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA. .,Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Moorthy P Ponnusamy
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE, 68198-5870, USA. .,Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA.
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8
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Hoshino A, Kim HS, Bojmar L, Gyan KE, Cioffi M, Hernandez J, Zambirinis CP, Rodrigues G, Molina H, Heissel S, Mark MT, Steiner L, Benito-Martin A, Lucotti S, Di Giannatale A, Offer K, Nakajima M, Williams C, Nogués L, Pelissier Vatter FA, Hashimoto A, Davies AE, Freitas D, Kenific CM, Ararso Y, Buehring W, Lauritzen P, Ogitani Y, Sugiura K, Takahashi N, Alečković M, Bailey KA, Jolissant JS, Wang H, Harris A, Schaeffer LM, García-Santos G, Posner Z, Balachandran VP, Khakoo Y, Raju GP, Scherz A, Sagi I, Scherz-Shouval R, Yarden Y, Oren M, Malladi M, Petriccione M, De Braganca KC, Donzelli M, Fischer C, Vitolano S, Wright GP, Ganshaw L, Marrano M, Ahmed A, DeStefano J, Danzer E, Roehrl MHA, Lacayo NJ, Vincent TC, Weiser MR, Brady MS, Meyers PA, Wexler LH, Ambati SR, Chou AJ, Slotkin EK, Modak S, Roberts SS, Basu EM, Diolaiti D, Krantz BA, Cardoso F, Simpson AL, Berger M, Rudin CM, Simeone DM, Jain M, Ghajar CM, Batra SK, Stanger BZ, Bui J, Brown KA, Rajasekhar VK, Healey JH, de Sousa M, Kramer K, Sheth S, Baisch J, Pascual V, Heaton TE, La Quaglia MP, Pisapia DJ, Schwartz R, Zhang H, Liu Y, Shukla A, Blavier L, DeClerck YA, LaBarge M, Bissell MJ, Caffrey TC, Grandgenett PM, Hollingsworth MA, Bromberg J, Costa-Silva B, Peinado H, Kang Y, Garcia BA, O'Reilly EM, Kelsen D, Trippett TM, Jones DR, Matei IR, Jarnagin WR, Lyden D. Extracellular Vesicle and Particle Biomarkers Define Multiple Human Cancers. Cell 2020; 182:1044-1061.e18. [PMID: 32795414 DOI: 10.1016/j.cell.2020.07.009] [Citation(s) in RCA: 607] [Impact Index Per Article: 151.8] [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: 01/06/2020] [Revised: 04/23/2020] [Accepted: 07/09/2020] [Indexed: 01/08/2023]
Abstract
There is an unmet clinical need for improved tissue and liquid biopsy tools for cancer detection. We investigated the proteomic profile of extracellular vesicles and particles (EVPs) in 426 human samples from tissue explants (TEs), plasma, and other bodily fluids. Among traditional exosome markers, CD9, HSPA8, ALIX, and HSP90AB1 represent pan-EVP markers, while ACTB, MSN, and RAP1B are novel pan-EVP markers. To confirm that EVPs are ideal diagnostic tools, we analyzed proteomes of TE- (n = 151) and plasma-derived (n = 120) EVPs. Comparison of TE EVPs identified proteins (e.g., VCAN, TNC, and THBS2) that distinguish tumors from normal tissues with 90% sensitivity/94% specificity. Machine-learning classification of plasma-derived EVP cargo, including immunoglobulins, revealed 95% sensitivity/90% specificity in detecting cancer. Finally, we defined a panel of tumor-type-specific EVP proteins in TEs and plasma, which can classify tumors of unknown primary origin. Thus, EVP proteins can serve as reliable biomarkers for cancer detection and determining cancer type.
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Affiliation(s)
- Ayuko Hoshino
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan; Japan Science and Technology Agency, PRESTO, Tokyo, Japan.
| | - Han Sang Kim
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Yonsei Cancer Center, Division of Medical Oncology, Department of Internal Medicine, Brain Korea 21 Plus Project for Medical Sciences, Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Linda Bojmar
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden; Department of Immunology, Genetics and Pathology, Uppsala University, Rudbeck Laboratory, Uppsala, Sweden
| | - Kofi Ennu Gyan
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Tri-Institutional PhD Program in Computational Biology and Medicine, New York, NY, USA
| | - Michele Cioffi
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Jonathan Hernandez
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Hepatopancreatobiliary Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Surgical Oncology Program, National Cancer Institute, National Institutes of Health, Bethesda, MD USA
| | - Constantinos P Zambirinis
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Hepatopancreatobiliary Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gonçalo Rodrigues
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Graduate Program in Areas of Basic and Applied Biology, Abel Salazar Biomedical Sciences Institute, University of Porto, Porto, Portugal
| | - Henrik Molina
- Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - Søren Heissel
- Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - Milica Tesic Mark
- Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - Loïc Steiner
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Swiss Institute for Experimental Cancer Research, School of Life Sciences, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland
| | - Alberto Benito-Martin
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Serena Lucotti
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Angela Di Giannatale
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Department of Pediatric Haematology/Oncology, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Katharine Offer
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Miho Nakajima
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Caitlin Williams
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Laura Nogués
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Microenvironment and Metastasis Laboratory, Department of Molecular Oncology, Spanish National Cancer Research Center (CNIO), Madrid, Spain
| | - Fanny A Pelissier Vatter
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Ayako Hashimoto
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan; Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tokyo, Tokyo, Japan
| | - Alexander E Davies
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Daniela Freitas
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; i3S-Institute for Research and Innovation in Health, University of Porto, Rua Alfredo Allen 208, Porto, Portugal
| | - Candia M Kenific
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Yonathan Ararso
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Weston Buehring
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Pernille Lauritzen
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Yusuke Ogitani
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Kei Sugiura
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan; Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Naoko Takahashi
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, Japan
| | - Maša Alečković
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Kayleen A Bailey
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Joshua S Jolissant
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Hepatopancreatobiliary Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Huajuan Wang
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Ashton Harris
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - L Miles Schaeffer
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Guillermo García-Santos
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Department of General and Gastrointestinal Surgery, Hospital Universitario Central de Asturias (HUCA), Oviedo, Spain
| | - Zoe Posner
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Vinod P Balachandran
- Hepatopancreatobiliary Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yasmin Khakoo
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - G Praveen Raju
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Avigdor Scherz
- Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Irit Sagi
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Ruth Scherz-Shouval
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Yosef Yarden
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Moshe Oren
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Mahathi Malladi
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mary Petriccione
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Kevin C De Braganca
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Maria Donzelli
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Cheryl Fischer
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Stephanie Vitolano
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Geraldine P Wright
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Lee Ganshaw
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mariel Marrano
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Amina Ahmed
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joe DeStefano
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Enrico Danzer
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Pediatric Surgical Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Michael H A Roehrl
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Norman J Lacayo
- Lucile Packard Children's Hospital Stanford, Stanford, CA, USA
| | - Theresa C Vincent
- Department of Immunology, Genetics and Pathology, Uppsala University, Rudbeck Laboratory, Uppsala, Sweden; Department of Microbiology, New York University School of Medicine, New York, NY, USA
| | - Martin R Weiser
- Colorectal Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mary S Brady
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Paul A Meyers
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Leonard H Wexler
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Srikanth R Ambati
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alexander J Chou
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Emily K Slotkin
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Shakeel Modak
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Stephen S Roberts
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ellen M Basu
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Daniel Diolaiti
- Perlmutter Cancer Center, New York University Langone Health, New York, NY, USA
| | - Benjamin A Krantz
- Perlmutter Cancer Center, New York University Langone Health, New York, NY, USA; Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Fatima Cardoso
- Breast Unit, Champalimaud Clinical Center/Champalimaud Foundation, Lisbon, Portugal
| | - Amber L Simpson
- Hepatopancreatobiliary Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Michael Berger
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Charles M Rudin
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Diane M Simeone
- Perlmutter Cancer Center, New York University Langone Health, New York, NY, USA
| | - Maneesh Jain
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Cyrus M Ghajar
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Surinder K Batra
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Ben Z Stanger
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jack Bui
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
| | - Kristy A Brown
- Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Vinagolu K Rajasekhar
- Orthopedic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - John H Healey
- Orthopedic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Maria de Sousa
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA; Graduate Program in Areas of Basic and Applied Biology, Abel Salazar Biomedical Sciences Institute, University of Porto, Porto, Portugal
| | - Kim Kramer
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sujit Sheth
- Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA
| | - Jeanine Baisch
- Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA; Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA
| | - Virginia Pascual
- Department of Pediatrics, Weill Cornell Medicine, New York, NY, USA; Drukier Institute for Children's Health, Weill Cornell Medicine, New York, NY, USA
| | - Todd E Heaton
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Pediatric Surgical Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Michael P La Quaglia
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Pediatric Surgical Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - David J Pisapia
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Robert Schwartz
- Division of Gastroenterology & Hepatology, Weill Cornell Medicine, New York, NY, USA
| | - Haiying Zhang
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - Yuan Liu
- Thoracic Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Arti Shukla
- Department of Pathology and Laboratory Medicine, University of Vermont, Burlington, VT, USA
| | - Laurence Blavier
- Department of Pediatrics and Biochemistry and Molecular Medicine, University of Southern California, CA, USA
| | - Yves A DeClerck
- Department of Pediatrics and Biochemistry and Molecular Medicine, University of Southern California, CA, USA
| | - Mark LaBarge
- Department of Population Sciences, Beckman Research Institute at City of Hope, Duarte, CA, USA
| | - Mina J Bissell
- Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Thomas C Caffrey
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Paul M Grandgenett
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Michael A Hollingsworth
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Jacqueline Bromberg
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | | | - Hector Peinado
- Microenvironment and Metastasis Laboratory, Department of Molecular Oncology, Spanish National Cancer Research Center (CNIO), Madrid, Spain
| | - Yibin Kang
- Department of Molecular Biology, Princeton University, Princeton, NJ, USA
| | - Benjamin A Garcia
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Eileen M O'Reilly
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - David Kelsen
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Tanya M Trippett
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - David R Jones
- Thoracic Surgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Irina R Matei
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
| | - William R Jarnagin
- Hepatopancreatobiliary Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | - David Lyden
- Children's Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children's Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA.
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9
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Olson MT, Wojtynek NE, Talmon GA, Caffrey TC, Radhakrishnan P, Ly QP, Hollingsworth MA, Mohs AM. Development of a MUC16-Targeted Near-Infrared Fluorescent Antibody Conjugate for Intraoperative Imaging of Pancreatic Cancer. Mol Cancer Ther 2020; 19:1670-1681. [PMID: 32404409 PMCID: PMC8009292 DOI: 10.1158/1535-7163.mct-20-0033] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 01/15/2020] [Revised: 03/18/2020] [Accepted: 05/07/2020] [Indexed: 01/11/2023]
Abstract
Surgical resection is currently the only potentially curative option for patients with pancreatic cancer. However, the 5-year survival rate after resection is only 25%, due in part to high rates of R1 resections, in which cells are left behind at the surgical margin, resulting in disease recurrence. Fluorescence-guided surgery (FGS) has emerged as a method to reduce incomplete resections and improve intraoperative assessment of cancer. Mucin-16 (MUC16), a protein biomarker highly overexpressed in pancreatic cancer, is a potential target for FGS. In this study, we developed a fluorescent MUC16-targeted antibody probe, AR9.6-IRDye800, for image-guided resection of pancreatic cancer. We demonstrated the efficacy of this probe to bind human pancreatic cancer cell lines in vitro and in vivo In an orthotopic xenograft model, AR9.6-IRDye800 exhibited superior fluorescence enhancement of tumors and lower signal in critical background organs in comparison to a nonspecific IgG control. The results of this study suggest that AR9.6-IRDye800 has potential for success as a probe for FGS in pancreatic cancer patients, and MUC16 is a feasible target for intraoperative imaging.
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Affiliation(s)
- Madeline T Olson
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Nicholas E Wojtynek
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Geoffrey A Talmon
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Thomas C Caffrey
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Prakash Radhakrishnan
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Quan P Ly
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
- Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska
| | - Michael A Hollingsworth
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Aaron M Mohs
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska.
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, Nebraska
- Center for Drug Delivery and Nanomedicine, University of Nebraska Medical Center, Omaha, Nebraska
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Mehla K, Caffrey TC, O'Connel KA, Madiyalakan R, Nicodemus CF, Hollingsworth MA. Abstract PR15: A novel NK cell-targeted therapeutic strategy against pancreatic cancer. Cancer Immunol Res 2020. [DOI: 10.1158/2326-6074.tumimm18-pr15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Recent years have witnessed an increased incidence of pancreatic adenocarcinoma (PDAC). Pancreatic tumors are poorly immunogenic; current immunotherapeutic strategies largely focus on boosting adaptive immunity while ignoring immunosuppressed innate immune players such as natural killer cells (NKs). NK cells respond to tumor insults by generating IFN-γ for T-cell activation. Multiple studies suggest that tumor cells evade NK cell-mediated killing by 1) developing “escape variants” and 2) regulating inhibitory and activating receptors on NK cells, imparting anergic/exhaustive phenotype inside the pancreatic tumor microenvironment. We posit that a therapeutic combination that not only overturns tumor-mediated NKs dysfunction but also boosts cytotoxic CD8 T cells will provide long-lasting therapeutic benefits in PDAC. Given this, we explored the efficacy of a unique therapeutic combination, tumor antigen-targeted IgE antibody (humanized anti-MUC1.IgE) in combination of anti-PD-L1 (for relieving T-cell exhaustion) and PolyICLC (for dendritic cell maturation) in a preclinical model of pancreatic cancer using mice transgenic for human MUC1 and FcϵRI (hMUC1/hFcϵRI). This therapeutic combination induced MUC1 specific rejection of two different human MUC1-expressing pancreatic tumor cell lines (Panc02.MUC1, KPC.MUC1) and prolonged the overall survival of mice challenged with subcutaneous and orthotopic tumors as compared to control counterparts. Additionally, this combination generated CD8 T-cell memory response as evidenced by MUC1 specific rejection/delays of tumors in mice rechallenged with MUC1-expressing tumors. Cytokine/chemokine profiling of anti-MUC1.IgE+anti-PD-L1+PolyICLC treated tumors further demonstrates a reduction in proinflammatory cytokines as compared to control counterparts. Most importantly, NK and CD8 T cells were involved in cell-mediated antitumor responses, as in vivo depletion of these subtypes abrogated the tumor-protective benefits in mice bearing orthotopic tumors. Anti-MUC1.IgE+anti-PD-L1+PolyICLC combination appears to increase circulating NKs and reverse NK cell exhaustion inside pancreatic tumor microenvironment. Additional data suggest that this therapeutic combination boosts tumor cell killing by NK cells in antibody-dependent cell cytotoxicity assays (ADCC). In sum, this is the first study to show that specific stimulation of IgE/FcϵRI axis in combination with PolyICLC and anti-PD-L1 can activate both CD8 T and NK cell effector pathways and provide long-lasting tumor-protective benefits against pancreatic cancer.
This abstract is also being presented as Poster A48.
Citation Format: Kamiya Mehla, Thomas C. Caffrey, Kelly A. O'Connel, Raghupathy Madiyalakan, Christopher F. Nicodemus, Michael A. Hollingsworth. A novel NK cell-targeted therapeutic strategy against pancreatic cancer [abstract]. In: Proceedings of the AACR Special Conference on Tumor Immunology and Immunotherapy; 2018 Nov 27-30; Miami Beach, FL. Philadelphia (PA): AACR; Cancer Immunol Res 2020;8(4 Suppl):Abstract nr PR15.
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Affiliation(s)
- Kamiya Mehla
- 1University of Nebraska Medical Center, Omaha, NE,
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11
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Law HCH, Lagundžin D, Clement EJ, Qiao F, Wagner ZS, Krieger KL, Costanzo-Garvey D, Caffrey TC, Grem JL, DiMaio DJ, Grandgenett PM, Cook LM, Fisher KW, Yu F, Hollingsworth MA, Woods NT. The Proteomic Landscape of Pancreatic Ductal Adenocarcinoma Liver Metastases Identifies Molecular Subtypes and Associations with Clinical Response. Clin Cancer Res 2019; 26:1065-1076. [PMID: 31848187 DOI: 10.1158/1078-0432.ccr-19-1496] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 10/19/2019] [Accepted: 12/11/2019] [Indexed: 12/16/2022]
Abstract
PURPOSE Pancreatic ductal adenocarcinoma (PDAC) is a highly metastatic disease that can be separated into distinct subtypes based on molecular signatures. Identifying PDAC subtype-specific therapeutic vulnerabilities is necessary to develop precision medicine approaches to treat PDAC. EXPERIMENTAL DESIGN A total of 56 PDAC liver metastases were obtained from the UNMC Rapid Autopsy Program and analyzed with quantitative proteomics. PDAC subtypes were identified by principal component analysis based on protein expression profiling. Proteomic subtypes were further characterized by the associated clinical information, including but not limited to survival analysis, drug treatment response, and smoking and drinking status. RESULTS Over 3,960 proteins were identified and used to delineate four distinct PDAC microenvironment subtypes: (i) metabolic; (ii) progenitor-like; (iii) proliferative; and (iv) inflammatory. PDAC risk factors of alcohol and tobacco consumption correlate with subtype classifications. Enhanced survival is observed in FOLFIRINOX treated metabolic and progenitor-like subtypes compared with the proliferative and inflammatory subtypes. In addition, TYMP, PDCD6IP, ERAP1, and STMN showed significant association with patient survival in a subtype-specific manner. Gemcitabine-induced alterations in the proteome identify proteins, such as serine hydroxymethyltransferase 1, associated with drug resistance. CONCLUSIONS These data demonstrate that proteomic analysis of clinical PDAC liver metastases can identify molecular signatures unique to disease subtypes and point to opportunities for therapeutic development to improve the treatment of PDAC.
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Affiliation(s)
- Henry C-H Law
- Eppley Institute for Research in Cancer, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Dragana Lagundžin
- Eppley Institute for Research in Cancer, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Emalie J Clement
- Eppley Institute for Research in Cancer, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Fangfang Qiao
- Eppley Institute for Research in Cancer, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Zachary S Wagner
- Eppley Institute for Research in Cancer, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Kimiko L Krieger
- Eppley Institute for Research in Cancer, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Diane Costanzo-Garvey
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, Omaha Nebraska
| | - Thomas C Caffrey
- Eppley Institute for Research in Cancer, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Jean L Grem
- Internal Medicine, Division of Hematology Oncology, University of Nebraska Medical Center, Omaha Nebraska
| | - Dominick J DiMaio
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, Omaha Nebraska
| | - Paul M Grandgenett
- Eppley Institute for Research in Cancer, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Leah M Cook
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, Omaha Nebraska
| | - Kurt W Fisher
- Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, Omaha Nebraska
| | - Fang Yu
- Department of Biostatistics, College of Public Health, University of Nebraska Medical Center, Omaha Nebraska
| | - Michael A Hollingsworth
- Eppley Institute for Research in Cancer, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - Nicholas T Woods
- Eppley Institute for Research in Cancer, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska.
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12
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Liu X, Caffrey TC, Steele MM, Mohr A, Singh PK, Radhakrishnan P, Kelly DL, Wen Y, Hollingsworth MA. MUC1 regulates cyclin D1 gene expression through p120 catenin and β-catenin. Oncogenesis 2014; 3:e107. [PMID: 24979278 PMCID: PMC4150213 DOI: 10.1038/oncsis.2014.19] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [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: 03/26/2014] [Revised: 05/01/2014] [Accepted: 05/06/2014] [Indexed: 12/16/2022] Open
Abstract
MUC1 interacts with β-catenin and p120 catenin to modulate WNT signaling. We investigated the effect of overexpressing MUC1 on the regulation of cyclin D1, a downstream target for the WNT/β-catenin signaling pathway, in two human pancreatic cancer cell lines, Panc-1 and S2-013. We observed a significant enhancement in the activation of cyclin D1 promoter-reporter activity in poorly differentiated Panc1.MUC1F cells that overexpress recombinant MUC1 relative to Panc-1.NEO cells, which express very low levels of endogenous MUC1. In stark contrast, cyclin D1 promoter activity was not affected in moderately differentiated S2-013.MUC1F cells that overexpressed recombinant MUC1 relative to S2-013.NEO cells that expressed low levels of endogenous MUC1. The S2-013 cell line was recently shown to be deficient in p120 catenin. MUC1 is known to interact with P120 catenin. We show here that re-expression of different isoforms of p120 catenin restored cyclin D1 promoter activity. Further, MUC1 affected subcellular localization of p120 catenin in association with one of the main effectors of P120 catenin, the transcriptional repressor Kaiso, supporting the hypothesis that p120 catenin relieved transcriptional repression by Kaiso. Thus, full activation of cyclin D1 promoter activity requires β-catenin activation of TCF-lef and stabilization of specific p120 catenin isoforms to relieve the repression of KAISO. Our data show MUC1 enhances the activities of both β-catenin and p120 catenin.
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Affiliation(s)
- X Liu
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - T C Caffrey
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - M M Steele
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - A Mohr
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - P K Singh
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - P Radhakrishnan
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - D L Kelly
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - Y Wen
- Department of Gynecologic Oncology and Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M A Hollingsworth
- 1] Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA [2] Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
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Mutolo MJ, Morris KJ, Leir SH, Caffrey TC, Lewandowska MA, Hollingsworth MA, Harris A. Tumor suppression by collagen XV is independent of the restin domain. Matrix Biol 2012; 31:285-9. [PMID: 22531369 DOI: 10.1016/j.matbio.2012.03.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 03/18/2012] [Accepted: 03/23/2012] [Indexed: 10/28/2022]
Abstract
Non-fibrillar collagen XV is a chondroitin sulfate modified glycoprotein that is associated with the basement membrane zone in many tissues. Its precise functions remain to be fully elucidated though it clearly plays a critical role in the structural integrity of the extracellular matrix. Loss of collagen XV from the basement membrane zone precedes invasion of a number of tumor types and we previously showed that collagen XV functions as a dose-dependent suppressor of tumorigenicity in cervical carcinoma cells. The carboxyl terminus of another non-fibrillar collagen (XVIII) is cleaved to produce endostatin, which has anti-angiogenic effects and thus may act as a tumor suppressor in vivo. Since collagen XV has structural similarity with collagen XVIII, its C-terminal restin domain could confer tumor suppressive functions on the molecule, though our previous data did not support this. We now show that expression of collagen XV enhances the adhesion of cervical carcinoma cells to collagen I in vitro as does the N-terminus and collagenous regions of collagen XV, but not the restin domain. Destruction of a cysteine residue in the collagenous region that is critical for intermolecular interactions of collagen XV abolished the enhanced adhesion to collagen I. Finally, we demonstrate that unlike full length collagen XV, expression of the restin domain alone does not suppress tumorigenicity of cervical carcinoma cells in vivo; hence, this process is dependent on functions and interactions of other parts of the protein.
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Affiliation(s)
- Michael J Mutolo
- Human Molecular Genetics Program, Children's Memorial Research Center, and Department of Pediatrics, Northwestern University Feinberg School of Medicine, 2300 Children's Plaza #211, Chicago, IL 60614, USA
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14
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Eggers JP, Grandgenett PM, Collisson EC, Lewallen ME, Tremayne J, Singh PK, Swanson BJ, Andersen JM, Caffrey TC, High RR, Ouellette M, Hollingsworth MA. Cyclin-dependent kinase 5 is amplified and overexpressed in pancreatic cancer and activated by mutant K-Ras. Clin Cancer Res 2011; 17:6140-50. [PMID: 21825040 DOI: 10.1158/1078-0432.ccr-10-2288] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
PURPOSE To evaluate the nature of cyclin-dependent kinase 5 (CDK5) hyperactivity in pancreatic cancer progression. EXPERIMENTAL DESIGN We used genetic, biochemical, and molecular biology methods to investigate the nature and function of overexpression of CDK5 and its activators p35 and p39 during the progression of pancreatic cancer. RESULTS Amplification of the CDK5 gene or either of its main activators, p35 and p39, was observed in 67% of human pancreatic ductal adenocarcinoma (PDAC). CDK5, p35, and p39 were rarely expressed in pancreatic ducts whereas more than 90% of PDACs had increased levels of CDK5 and p35. Increased levels of CDK5, p35, and p39 protein were observed in several pancreatic cancer cell lines. Inhibition of CDK5 kinase activity using a CDK5 dominant-negative mutant or the drug roscovitine significantly decreased the migration and invasion of pancreatic cancer cells in vitro. Increased CDK5 kinase activity was also observed in immortalized human pancreatic nestin-expressing (HPNE) cells expressing a mutant form of K-Ras (G12D) compared with HPNE cells expressing native K-Ras. G12D K-Ras increased cleavage of p35 to p25, a stable and greater activator of CDK5, thus implicating a role for CDK5 in early progression of PDAC. Inhibition of the signaling cascade downstream of mutant K-Ras (G12D) that involves mitogen-activated protein/extracellular signal-regulated kinase, phosphoinositide 3-kinase, or CDK5 decreased p25 protein levels. CONCLUSION These results suggest that mutant K-Ras acts in concert with CDK5 and its activators to increase malignant progression, migration, and invasion of pancreatic cancer cells.
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Affiliation(s)
- John P Eggers
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
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15
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Tsutsumida H, Swanson BJ, Singh PK, Caffrey TC, Kitajima S, Goto M, Yonezawa S, Hollingsworth MA. RNA interference suppression of MUC1 reduces the growth rate and metastatic phenotype of human pancreatic cancer cells. Clin Cancer Res 2006; 12:2976-87. [PMID: 16707592 DOI: 10.1158/1078-0432.ccr-05-1197] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.2] [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: 12/23/2022]
Abstract
MUC1 is a highly glycosylated, type I transmembrane protein expressed by normal ductal epithelial cells of the pancreas, breast, lung, and gastrointestinal tract, and overexpressed in many cases of adenocarcinoma. We down-regulated MUC1 expression by RNA interference and investigated the effects on malignant and metastatic potential of a human pancreatic cancer cell line, S2-013. MUC1-suppressed clones, S2-013.MTII.C1 and S2-013.MTII.C2, were established by targeting a sequence 3,151 bp from the initiation codon and characterized in vitro for proliferation, invasion, and adhesion. We evaluated the effects of MUC1 suppression in vivo on tumor growth and metastatic properties following implantation into the cecum or pancreas of athymic mice. MUC1-suppressed clones showed significantly decreased proliferation in vitro and in vivo. Global gene expression was evaluated by oligonucleotide microarray analysis. Surprisingly, genes predicted to increase doubling times (cyclin B1 and cyclin D3) were overexpressed in MUC1-suppressed clones. There were alterations in expression of several genes that may affect the malignant properties of pancreatic cancer. Adhesion of MUC1-suppressed cells in vitro to type IV collagen and fibronectin was slightly increased, and adhesion was slightly decreased to type I collagen and laminin. Results of implantation to cecum and pancreas showed significant reduction of metastasis to lymph nodes, lung, or peritoneal sites compared with S2-013.gfp-neo control cells. These results support the hypothesis that MUC1 contributes significantly to growth and metastasis, and that down-regulation of MUC1 protein expression decreases the metastatic potential of pancreatic adenocarcinoma.
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Affiliation(s)
- Hideaki Tsutsumida
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska 68198-6805, USA
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16
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Kohlgraf KG, Gawron AJ, Higashi M, VanLith ML, Shen X, Caffrey TC, Anderson JM, Hollingsworth MA. Tumor-specific immunity in MUC1.Tg mice induced by immunization with peptide vaccines from the cytoplasmic tail of CD227 (MUC1). Cancer Immunol Immunother 2004; 53:1068-84. [PMID: 15696607 PMCID: PMC11032883 DOI: 10.1007/s00262-004-0557-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2004] [Accepted: 04/21/2004] [Indexed: 11/30/2022]
Abstract
PURPOSE CD227 (MUC1), a membrane-associated glycoprotein expressed by many types of ductal epithelia, including pancreas, breast, lung, and gastrointestinal tract, is overexpressed and aberrantly glycosylated by malignant cells. We sought to define epitopes on MUC1 recognized by the different cell-mediated immune responses by an in vivo assay. Epitopes identified by this assay were evaluated for efficacy to protect mice transgenic for human MUC1 (MUC1.Tg) against MUC1-expressing tumor growth. METHODS We investigated contributions of the tandem repeat (TR) and the cytoplasmic tail (CT) of MUC1 to the MUC1-specific immunological rejection of tumor cells. MUC1 cDNA constructs, in which the TR region was deleted or the CT was truncated, were transfected into two different murine tumor cell lines (B16 and Panc02), which were used to challenge mice and evaluate immunological rejection of the tumors. We used tumor rejection in vivo to define epitopes on the TR and CT of MUC1 recognized by T cell-mediated immune responses in a preclinical murine model. RESULTS Our findings demonstrated that the TR and a portion of the MUC1 CT contributed to CD4+ T cell rejection of MUC1-expressing B16 tumor cells, but not rejection of MUC1-expressing Panc02 tumor cells. A separate epitope in the CT of MUC1 was necessary for CD8+ T cell rejection of Panc02 tumor cells. Based on these studies, we sought to evaluate the efficacy of immunizing mice transgenic for (and immunologically tolerant to) human MUC1 with peptides derived from the amino acid sequence of the CT of MUC1. Results showed that survival can be significantly prolonged in vaccinated MUC1.Tg mice challenged with MUC1-expressing tumor cells, without induction of autoimmune responses. CONCLUSIONS These studies demonstrated that MUC1 peptides may be utilized as an effective anticancer immunotherapeutic, and confirmed the importance of immunogenic epitopes outside of the TR.
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Affiliation(s)
- Karl G. Kohlgraf
- Eppley Institute for Research in Cancer and Allied Diseases, and the Department of Pathology and Microbiology, University of Nebraska Medical Center, 986805 Nebraska Medical Center, Omaha, NE 68198-6805 USA
| | - Andrew J. Gawron
- Eppley Institute for Research in Cancer and Allied Diseases, and the Department of Pathology and Microbiology, University of Nebraska Medical Center, 986805 Nebraska Medical Center, Omaha, NE 68198-6805 USA
| | - Michiyo Higashi
- Eppley Institute for Research in Cancer and Allied Diseases, and the Department of Pathology and Microbiology, University of Nebraska Medical Center, 986805 Nebraska Medical Center, Omaha, NE 68198-6805 USA
| | - Michelle L. VanLith
- Eppley Institute for Research in Cancer and Allied Diseases, and the Department of Pathology and Microbiology, University of Nebraska Medical Center, 986805 Nebraska Medical Center, Omaha, NE 68198-6805 USA
| | - XiaoLing Shen
- Eppley Institute for Research in Cancer and Allied Diseases, and the Department of Pathology and Microbiology, University of Nebraska Medical Center, 986805 Nebraska Medical Center, Omaha, NE 68198-6805 USA
| | - Thomas C. Caffrey
- Eppley Institute for Research in Cancer and Allied Diseases, and the Department of Pathology and Microbiology, University of Nebraska Medical Center, 986805 Nebraska Medical Center, Omaha, NE 68198-6805 USA
| | - Judy M. Anderson
- Eppley Institute for Research in Cancer and Allied Diseases, and the Department of Pathology and Microbiology, University of Nebraska Medical Center, 986805 Nebraska Medical Center, Omaha, NE 68198-6805 USA
| | - Michael A. Hollingsworth
- Eppley Institute for Research in Cancer and Allied Diseases, and the Department of Pathology and Microbiology, University of Nebraska Medical Center, 986805 Nebraska Medical Center, Omaha, NE 68198-6805 USA
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Abstract
MUC1, an integral membrane mucin associated with the metastatic phenotype, is overexpressed by most human carcinoma cells. The MUC1 cytoplasmic tail (CT) is postulated to function in morphogenetic signal transduction via interactions with Grb2/Sos, c-Src, and beta-catenin. We investigated intracellular trafficking of the MUC1 CT, using epitope-tagged constructs that were overexpressed in human pancreatic cancer cell lines S2-013 and Panc-1. The MUC1 CT was detected at the inner cell surface, in the cytosol, and in the nucleus of cells overexpressing MUC1. Fragments of the MUC1 CT were associated with beta-catenin in both cytoplasm and nuclei. Overexpression of MUC1 increased steady state levels of nuclear beta-catenin but decreased nuclear levels of plakoglobin (gamma-catenin). There was no detectable association between plakoglobin and the MUC1 CT. Coimmunoprecipitation experiments revealed that the cytoplasmic and nuclear association of MUC1 CT and beta-catenin was not affected by disruption of Ca2+-dependent intercellular cadherin interactions. These results demonstrate nuclear localization of fragments of MUC1 CT in association with beta-catenin and raise the possibility that overexpression of the MUC1 CT stabilizes beta-catenin and enhances levels of nuclear beta-catenin during disruption of cadherin-mediated cell-cell adhesion.
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Affiliation(s)
- Yunfei Wen
- Eppley Institute for Research in Cancer and Allied Diseases, Omaha, Nebraska 68198-6805, USA
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18
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Kohlgraf KG, Gawron AJ, Higashi M, Meza JL, Burdick MD, Kitajima S, Kelly DL, Caffrey TC, Hollingsworth MA. Contribution of the MUC1 tandem repeat and cytoplasmic tail to invasive and metastatic properties of a pancreatic cancer cell line. Cancer Res 2003; 63:5011-20. [PMID: 12941828] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
MUC1 is a polymorphic, highly glycosylated, type I transmembrane protein expressed by ductal epithelial cells of many organs including pancreas, breast, gastrointestinal tract, and airway. MUC1 is overexpressed and differentially glycosylated by adenocarcinomas that arise in these organs, and is believed to contribute to invasive and metastatic potential by contributing to cell surface adhesion properties [via the tandem repeat (TR) domain] and through morphogenetic signal transduction [via the cytoplasmic tail (CT)]. The large extracellular TR of MUC1 consists of a heavily glycosylated, 20 amino acid sequence that shows allelic variation with respect to number of repeats. This portion of MUC1 may directly mediate adhesive or antiadhesive interactions with other surface molecules on adjacent cells and through these interactions initiate signal transduction pathways that are transmitted through the CT. We investigated the contribution of the TR domain and the CT of MUC1 to the in vivo invasive and metastatic potential, and the gene expression profile of the human pancreatic tumor cell line S2-013. Results showed that S2-013 cells overexpressing full-length MUC1 displayed a less invasive and metastatic phenotype compared with control-transfected cells and cells expressing MUC1 lacking the TR domain or CT. Clonal populations were analyzed by cDNA array gene expression analysis, which showed differences in the gene expression profiles between the different cell lines. Among the genes differentially expressed were several that encode proteins believed to play a role in invasion and metastasis.
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Affiliation(s)
- Karl G Kohlgraf
- Eppley Institute for Research in Cancer and Allied Diseases, and the Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska 68198-6805, USA
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Iwamura T, Caffrey TC, Kitamura N, Yamanari H, Setoguchi T, Hollingsworth MA. P-selectin expression in a metastatic pancreatic tumor cell line (SUIT-2). Cancer Res 1997; 57:1206-12. [PMID: 9067294] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The human pancreatic tumor cell line SUIT-2 was derived from a metastatic lesion in the liver of a patient with pancreatic adenocarcinoma. SUIT-2 and clonal cell lines derived from it show spontaneous metastasis to lung and regional lymph nodes from s.c. nude mouse xenografts and were found to express P-selectin mRNA and protein. Surface expression of P-selectin protein was increased by exposure of the pancreatic tumor cells to thrombin, oxygen radicals, and trypsin, suggesting that common cellular mechanisms for regulating P-selectin surface expression exist among platelets, endothelial cells, and these pancreatic tumor cells. The finding that P-selectin is expressed by metastatic pancreatic tumor cells demonstrates that the range of cell types that express these adhesion molecules is broader than believed previously.
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Affiliation(s)
- T Iwamura
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha 68198-6805, USA
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Hollingsworth MA, Strawhecker JM, Caffrey TC, Mack DR. Expression of MUC1, MUC2, MUC3 and MUC4 mucin mRNAs in human pancreatic and intestinal tumor cell lines. Int J Cancer 1994; 57:198-203. [PMID: 8157358 DOI: 10.1002/ijc.2910570212] [Citation(s) in RCA: 111] [Impact Index Per Article: 3.7] [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: 01/29/2023]
Abstract
We examined the steady-state expression levels of mRNA for the MUC1, MUC2, MUC3 and MUC4 gene products in 12 pancreatic tumor cell lines, 6 colon tumor cell lines, and one ileocecal tumor cell line. The results showed that 10 of 12 pancreatic tumor cell lines expressed MUC1 mRNA and that 7 of these 12 lines also expressed relatively high levels of MUC4 mRNA. In contrast, MUC2 mRNA was expressed at only low levels and MUC3 was not detected in the pancreatic tumor cell lines. All 7 intestinal tumor cell lines examined expressed MUC2, and 5 of 7 expressed MUC3; however only one expressed significant levels of MUC1 and 2 expressed low levels of MUC4 mRNA. This report of high levels of MUC4 mRNA expression by pancreatic tumor cells raises the possibility that mucin carbohydrate epitopes defined by antibodies such as DuPan 2 may be expressed on a second mucin core protein produced by pancreatic tumor cells.
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Affiliation(s)
- M A Hollingsworth
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha
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Abstract
ROS 17/2.8 cells, a cloned rat osteosarcoma cell line, are exceptionally sensitive to the cytotoxic effects of cadmium. This sensitivity is associated with the inability of this metal to induce the synthesis of metallothionein, a transition metal-binding protein, which detoxifies this metal by its sequestration. Sodium butyrate induces the synthesis of metallothionein in these cells in a concentration-dependent manner. Treatment with this agent also significantly increases the resistance of these cells to the cytotoxic effects of cadmium and the protective effect of butyrate is reversed upon its removal from culture medium. Butyrate treatment did not significantly alter the accumulation of cadmium by these cells. Hence, the increased synthesis of metallothionein in butyrate-treated cells is not due to increased cellular uptake of cadmium. Inhibition of DNA synthesis due to butyrate was not a sufficient condition to alter metallothionein synthesis or to protect against Cd-induced cytotoxicity. Equivalent inhibition of DNA synthesis with hydroxyurea failed to increase metallothionein synthesis in cadmium-treated cells. These results indicate that modulation of metallothionein gene expression in this cell line is the critical factor in determining cellular sensitivity to the cytotoxic effects of cadmium.
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Affiliation(s)
- D J Thomas
- Department of Pediatrics, College of Medicine, University of Nebraska Medical Center, Omaha 68198
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22
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Abstract
Intraperitoneal injection of female NAW/W1 mice with 5 mg of Salmonella typhimurium lipopolysaccharide/kg results in decreased body and thymus weight. Reduced thymic weight is accompanied by fragmentation of DNA into multimers of about 200 bp size. This effect is consistent with the induction of intranucleosomal cleavage of double-stranded DNA in thymus. Maximal fragmentation of DNA occurs between 18 and 24 h after treatment; by 48 h post lipopolysaccharide treatment, there is little evidence of thymic DNA fragmentation. Pretreatment of mice with Zn protects against lipopolysaccharide-induced DNA fragmentation. This effect is maximal at about 72 h after Zn treatment (24 h after lipopolysaccharide treatment) and persists until about 96 h after Zn treatment. At 72 h after pretreatment, the antagonism of thymic DNA fragmentation by Zn is dose-dependent. To examine the role of the acute phase inflammatory response elicited by lipopolysaccharide treatment in the production of changes in thymic weight and DNA integrity, the effects of treatment with casein, a well-characterized inducer of the acute phase inflammatory response in mice, were examined. In contrast to the effect of lipopolysaccharide, casein treatment did not produce a similar pattern of DNA fragmentation in thymus. Taken together, these data suggest that lipopolysaccharide induces DNA fragmentation in thymus by a mechanism which does not occur during the pathophysiological changes which accompany the casein-induced acute phase response. Further, the antagonism by Zn of lipopolysaccharide-induced fragmentation of thymic DNA is consistent with earlier findings that Zn can prevent dexamethasone-induced DNA fragmentation in vitro.
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Affiliation(s)
- D J Thomas
- Department of Pediatrics, College of Medicine, University of Nebraska Medical Center, Omaha 68198
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