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Sánchez-López JY, Vázquez-Ibarra KC, García-Muro AM, García-Ruvalcaba A, Pacheco-Sotelo S, Díaz-Herrera LC, Marin-Contreras ME. Medium and large alleles of the PGC gene are risk factors for gastric cancer. Tumour Biol 2023; 45:15-21. [PMID: 37038800 DOI: 10.3233/tub-220025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023] Open
Abstract
BACKGROUND A 100-bp insertion/deletion polymorphism in the pepsinogen C gene has been associated with the risk of gastric cancer (GC). OBJECTIVE We analyzed the relationships of the 100-bp insertion/deletion polymorphism with GC, atrophic gastritis (AG), and intestinal metaplasia (IM) in the Mexican general population (MGP). METHODS We studied the genomic DNA of subjects with GC n = 80, AG and IM n = 60, controls n = 110, and the MGP n = 97. PGC gene insertion/deletion polymorphism was identified by means of PCR, capillary electrophoresis and GeneScan software. RESULTS Different allele sizes of PGC polymorphism were observed in the studied groups, from 266 bp to 499 bp, which were grouped for the analysis as short alleles of 266-399 bp, medium alleles of 400-433 bp and large alleles of 434-499 bp. Carriers of one or two medium alleles, had an increased risk of GC, with OR of 1.99 (CI95% 1.08-3.67 p = 0.026) compared to homozygotes (no medium/no medium). CONCLUSIONS Previous studies have related PGC short alleles to risk for or protection against GC depending on the ethnic origin of the population. In our study, medium alleles were related to risk for GC. Further studies are required to establish the importance of this polymorphism in the origin of gastric neoplasia.
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Affiliation(s)
- Josefina Yoaly Sánchez-López
- Division of Genetics, Western Biomedical Research Center, Mexican Institute of Social Security, Guadalajara, Jalisco, Mexico
| | - Katia Carolina Vázquez-Ibarra
- Division of Genetics, Western Biomedical Research Center, Mexican Institute of Social Security, Guadalajara, Jalisco, Mexico
- Doctoral Program in Human Genetics, Department of Molecular Biology and Genomics, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico
| | - Andrea Marlene García-Muro
- Division of Genetics, Western Biomedical Research Center, Mexican Institute of Social Security, Guadalajara, Jalisco, Mexico
- Doctoral Program in Human Genetics, Department of Molecular Biology and Genomics, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico
| | - Azaria García-Ruvalcaba
- Division of Genetics, Western Biomedical Research Center, Mexican Institute of Social Security, Guadalajara, Jalisco, Mexico
- Doctoral Program in Human Genetics, Department of Molecular Biology and Genomics, University Center of Health Sciences, University of Guadalajara, Guadalajara, Jalisco, Mexico
| | - Sergio Pacheco-Sotelo
- Pediatric Hospital, National Medical Center of the West, Mexican Institute of Social Security, Guadalajara, Jalisco, Mexico
| | - Luis Carlos Díaz-Herrera
- Department of Gastroenterology, National Medical Center of the West, Mexican Institute of Social Security, Guadalajara, Jalisco, Mexico
| | - Marıa Eugenia Marin-Contreras
- Department of Gastroenterology, National Medical Center of the West, Mexican Institute of Social Security, Guadalajara, Jalisco, Mexico
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De Re V, Vettori R, Cannizzaro R. Biomarkers and OLGIM Stage for Prospective Preneoplastic Risk Stratification. Clin Gastroenterol Hepatol 2021; 19:2677. [PMID: 33571714 DOI: 10.1016/j.cgh.2021.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/01/2021] [Accepted: 02/05/2021] [Indexed: 02/07/2023]
Affiliation(s)
- Valli De Re
- 1-Unit of Immunopathologia e Biomarcatori Oncologici/Bio-Proteomics Facility, Department of Research and Advanced Tumor Diagnostics, Centro di Riferimento Oncologico di Aviano, IRCCS, Aviano, Italy
| | - Roberto Vettori
- 1-Unit of Immunopathologia e Biomarcatori Oncologici/Bio-Proteomics Facility, Department of Research and Advanced Tumor Diagnostics, Centro di Riferimento Oncologico di Aviano, IRCCS, Aviano, Italy
| | - Renato Cannizzaro
- 2-Unit of Oncological Gastroenterology, Department of Medical Oncology, Centro di Riferimento Oncologico di Aviano, IRCCS, Aviano, Italy
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Huang RJ, Hwang JH. Reply. Clin Gastroenterol Hepatol 2021; 19:2677-2678. [PMID: 33716138 DOI: 10.1016/j.cgh.2021.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 03/09/2021] [Indexed: 02/07/2023]
Affiliation(s)
- Robert J Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University, Stanford, California
| | - Joo Ha Hwang
- Division of Gastroenterology and Hepatology, Department of Medicine, Stanford University, Stanford, California
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