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Prasad H, Shah IA, Kurien RT, Chowdhury SD, Visweswariah SS. An integrated picture of chronic pancreatitis derived by mapping variants in multiple disease genes onto pathogenic pathways. Hum Mol Genet 2024:ddae127. [PMID: 39198965 DOI: 10.1093/hmg/ddae127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 08/12/2024] [Indexed: 09/01/2024] Open
Abstract
Chronic pancreatitis (CP) is an etiologically and genetically heterogeneous inflammatory syndrome characterised by progressive damage to the exocrine and endocrine components of the pancreas [ 1]. The multigenic paradigm of CP has sparked research in recent years [ 2]. We aimed to expand the current knowledge of genetic susceptibility of pancreatitis in patients of Indian origin. By employing whole-exome sequencing in an Indian hospital cohort, we dissect the genetic landscape associated with CP or recurrent acute pancreatitis (RAP). Notably, all patients had at least one genetic variant identified in a pancreatitis-risk gene, and most had a co-occurrence of a second variant in an additional risk gene. Based on the presence of both acinar and ductal gene variants in individual patients, we propose a two-hit hypothesis where variants in proteins expressed in both acinar and ductal cells are critical for RAP/CP development.
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Affiliation(s)
- Hari Prasad
- Department of Developmental Biology and Genetics, Biological Sciences Building GA09, Indian Institute of Science, Sir CV Raman Avenue, Indian Institute of Science, Bengaluru 560012, India
| | - Idrees A Shah
- Department of Developmental Biology and Genetics, Biological Sciences Building GA09, Indian Institute of Science, Sir CV Raman Avenue, Indian Institute of Science, Bengaluru 560012, India
| | - Reuben Thomas Kurien
- Department of Gastroenterology, Christian Medical College Vellore, Ida Scudder Road, Vellore 632004, Tamil Nadu, India
| | - Sudipta Dhar Chowdhury
- Department of Gastroenterology, Christian Medical College Vellore, Ida Scudder Road, Vellore 632004, Tamil Nadu, India
| | - Sandhya S Visweswariah
- Department of Developmental Biology and Genetics, Biological Sciences Building GA09, Indian Institute of Science, Sir CV Raman Avenue, Indian Institute of Science, Bengaluru 560012, India
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Mesquita G, Haustrate A, Mihalache A, Soret B, Cordier C, Desruelles E, Duval E, Pethö Z, Prevarskaya N, Schwab A, Lehen’kyi V. TRPV6 Channel Is Involved in Pancreatic Ductal Adenocarcinoma Aggressiveness and Resistance to Chemotherapeutics. Cancers (Basel) 2023; 15:5769. [PMID: 38136316 PMCID: PMC10741494 DOI: 10.3390/cancers15245769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/20/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) stands as a highly aggressive and lethal cancer, characterized by a grim prognosis and scarce treatment alternatives. Within this context, TRPV6, a calcium-permeable channel, emerges as a noteworthy candidate due to its overexpression in various cancers, capable of influencing the cell behavior in different cancer entities. Nonetheless, the exact expression pattern and functional significance of TRPV6 in the context of PDAC remains enigmatic. This study scrutinizes the expression of TRPV6 in tissue specimens obtained from 46 PDAC patients across distinct stages and grades. We manipulated TRPV6 expression (knockdown, overexpression) in the human PDAC cell lines Panc-1 and Capan-1. Subsequently, we analyzed its impact on multiple facets, encompassing Ca2+ influx, proliferation, apoptosis, migration, chemoresistance, and tumor growth, both in vitro and in vivo. Notably, the data indicate a direct correlation between TRPV6 expression levels, tumor stage, and grade, establishing a link between TRPV6 and PDAC proliferation in tissue samples. Decreasing TRPV6 expression via knockdown hampered Ca2+ influx, resulting in diminished proliferation and viability in both cell lines, and cell cycle progression in Panc-1. The knockdown simultaneously led to an increase in apoptotic rates and increased the susceptibility of cells to 5-FU and gemcitabine treatments. Moreover, it accelerated migration and promoted collective movement among Panc-1 cells. Conversely, TRPV6 overexpression yielded opposing outcomes in terms of proliferation in Panc-1 and Capan-1, and the migration of Panc-1 cells. Intriguingly, both TRPV6 knockdown and overexpression diminished the process of tumor formation in vivo. This intricate interplay suggests that PDAC aggressiveness relies on a fine-tuned TRPV6 expression, raising its profile as a putative therapeutic target.
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Affiliation(s)
- Gonçalo Mesquita
- Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channel Science and Therapeutics, Department of Biology, Faculty of Science and Technologies, University of Lille, 59650 Villeneuve d’Ascq, France (E.D.); (N.P.)
- Institute of Physiology II, University of Muenster, Robert-Koch-Str. 27b, 48149 Muenster, Germany;
| | - Aurélien Haustrate
- Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channel Science and Therapeutics, Department of Biology, Faculty of Science and Technologies, University of Lille, 59650 Villeneuve d’Ascq, France (E.D.); (N.P.)
| | - Adriana Mihalache
- Service d’Anatomie et de Cytologie Pathologiques, Groupement des Hôpitaux de l’Institut Catholique de Lille (GHICL), 59000 Lille, France; (A.M.); (E.D.)
| | - Benjamin Soret
- Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channel Science and Therapeutics, Department of Biology, Faculty of Science and Technologies, University of Lille, 59650 Villeneuve d’Ascq, France (E.D.); (N.P.)
- Institute of Physiology II, University of Muenster, Robert-Koch-Str. 27b, 48149 Muenster, Germany;
| | - Clément Cordier
- Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channel Science and Therapeutics, Department of Biology, Faculty of Science and Technologies, University of Lille, 59650 Villeneuve d’Ascq, France (E.D.); (N.P.)
| | - Emilie Desruelles
- Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channel Science and Therapeutics, Department of Biology, Faculty of Science and Technologies, University of Lille, 59650 Villeneuve d’Ascq, France (E.D.); (N.P.)
| | - Erika Duval
- Service d’Anatomie et de Cytologie Pathologiques, Groupement des Hôpitaux de l’Institut Catholique de Lille (GHICL), 59000 Lille, France; (A.M.); (E.D.)
| | - Zoltan Pethö
- Institute of Physiology II, University of Muenster, Robert-Koch-Str. 27b, 48149 Muenster, Germany;
| | - Natalia Prevarskaya
- Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channel Science and Therapeutics, Department of Biology, Faculty of Science and Technologies, University of Lille, 59650 Villeneuve d’Ascq, France (E.D.); (N.P.)
| | - Albrecht Schwab
- Institute of Physiology II, University of Muenster, Robert-Koch-Str. 27b, 48149 Muenster, Germany;
| | - V’yacheslav Lehen’kyi
- Laboratory of Cell Physiology, INSERM U1003, Laboratory of Excellence Ion Channel Science and Therapeutics, Department of Biology, Faculty of Science and Technologies, University of Lille, 59650 Villeneuve d’Ascq, France (E.D.); (N.P.)
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