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Pierce ES, Jindal C, Choi YM, Cassidy K, Efird JT. Pathogenic mechanisms and etiologic aspects of Mycobacterium avium subspecies paratuberculosis as an infectious cause of cutaneous melanoma. MEDCOMM - ONCOLOGY 2024; 3:e72. [PMID: 38831791 PMCID: PMC11145504 DOI: 10.1002/mog2.72] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 04/17/2024] [Indexed: 06/05/2024]
Abstract
Infectious etiologies have previously been proposed as causes of both melanoma and non-melanoma skin cancer. This exploratory overview explains and presents the evidence for the hypothesis that a microorganism excreted in infected ruminant animal feces, Mycobacterium avium subspecies paratuberculosis (MAP), is the cause of some cases of cutaneous melanoma (CM). Occupational, residential, and recreational contact with MAP-contaminated feces, soil, sand, and natural bodies of water may confer a higher rate of CM. Included in our hypothesis are possible reasons for the differing rates and locations of CM in persons with white versus nonwhite skin, why CM develops underneath nails and in vulvar skin, why canine melanoma is an excellent model for human melanoma, and why the Bacille Calmette-Guérin (BCG) vaccine has demonstrated efficacy in the prevention and treatment of CM. The pathogenic mechanisms and etiologic aspects of MAP, as a transmittable agent underlying CM risk, are carefully deliberated in this paper. Imbalances in gut and skin bacteria, genetic risk factors, and vaccine prevention/therapy are also discussed, while acknowledging that the evidence for a causal association between MAP exposure and CM remains circumstantial.
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Affiliation(s)
- Ellen S. Pierce
- Independent Physician Researcher, Spokane Valley, Washington, USA
| | - Charulata Jindal
- School of Medicine and Public Health, University of Sydney, Sydney, New South Wales, Australia
| | - Yuk Ming Choi
- Provider Services, Signify Health, Dallas, Texas, USA
| | - Kaitlin Cassidy
- VA Boston Healthcare System, Cooperative Studies Program Coordinating Center, Boston, Massachusetts, USA
| | - Jimmy T. Efird
- VA Boston Healthcare System, Cooperative Studies Program Coordinating Center, Boston, Massachusetts, USA
- Department of Radiation Oncology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
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Buja A, Rugge M, De Luca G, Bovo E, Zorzi M, De Toni C, Cozzolino C, Vecchiato A, Del Fiore P, Spina R, Cinquetti S, Baldo V, Rossi CR, Mocellin S. Cutaneous Melanoma in Alpine Population: Incidence Trends and Clinicopathological Profile. Curr Oncol 2022; 29:2165-2173. [PMID: 35323375 PMCID: PMC8947100 DOI: 10.3390/curroncol29030175] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 01/04/2023] Open
Abstract
Previous studies associated high-level exposure to ultraviolet radiation with a greater risk of cutaneous malignant melanoma (CMM). This study focuses on the changing incidence of CMM over time (from 1990 to 2017) in the Veneto region of Northeast Italy, and its Alpine area (the province of Belluno). The clinicopathological profile of CMM by residence is also considered. A joinpoint regression analysis was performed to identify significant changes in the yearly incidence of CMM by sex and age. For each trend, the average annual percent change (AAPC) was also calculated. In the 2017 CMM cohort, the study includes a descriptive analysis of the disease's categorical clinicopathological variables. In the population investigated, the incidence of CMM has increased significantly over the last 30 years. The AAPC in the incidence of CMM was significantly higher among Alpine residents aged 0-49 than for the rest of the region's population (males: 6.9 versus 2.4; females 7.7 versus 2.7, respectively). Among the Alpine residents, the AAPC was 3.35 times greater for females aged 0-49 than for people aged 50+. The clinicopathological profile of CMM was significantly associated with the place of residence. Over three decades, the Veneto population has observed a significant increase in the incidence of CMM, and its AAPC. Both trends have been markedly more pronounced among Alpine residents, particularly younger females. While epidemiology and clinicopathological profiles support the role of UV radiation in CMM, the young age of this CMM-affected female population points to other possible host-related etiological factors. These findings also confirm the importance of primary and secondary prevention strategies.
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Affiliation(s)
- Alessandra Buja
- Department of Cardiologic, Vascular and Thoracic Sciences and Public Health, University of Padua, 35131 Padua, Italy; (G.D.L.); (V.B.)
| | - Massimo Rugge
- Pathology and Cytopathology Unit, Department of Medicine-DIMED, University of Padua, 35131 Padua, Italy;
- Azienda Zero, Veneto Tumor Registry (RTV), 35131 Padua, Italy; (E.B.); (M.Z.)
| | - Giuseppe De Luca
- Department of Cardiologic, Vascular and Thoracic Sciences and Public Health, University of Padua, 35131 Padua, Italy; (G.D.L.); (V.B.)
| | - Emanuela Bovo
- Azienda Zero, Veneto Tumor Registry (RTV), 35131 Padua, Italy; (E.B.); (M.Z.)
| | - Manuel Zorzi
- Azienda Zero, Veneto Tumor Registry (RTV), 35131 Padua, Italy; (E.B.); (M.Z.)
| | - Chiara De Toni
- Department of Statistical Sciences, University of Padua, 35131 Padua, Italy;
| | - Claudia Cozzolino
- Soft-Tissue, Peritoneum and Melanoma Surgical Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, 35131 Padua, Italy; (C.C.); (A.V.); (C.R.R.); (S.M.)
| | - Antonella Vecchiato
- Soft-Tissue, Peritoneum and Melanoma Surgical Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, 35131 Padua, Italy; (C.C.); (A.V.); (C.R.R.); (S.M.)
| | - Paolo Del Fiore
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University of Padua, 35131 Padua, Italy; (P.D.F.); (R.S.)
| | - Romina Spina
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University of Padua, 35131 Padua, Italy; (P.D.F.); (R.S.)
| | - Sandro Cinquetti
- Hygiene and Public Health Service (SISP), Azienda ULSS 1 Dolomiti, 32100 Belluno, Italy;
| | - Vincenzo Baldo
- Department of Cardiologic, Vascular and Thoracic Sciences and Public Health, University of Padua, 35131 Padua, Italy; (G.D.L.); (V.B.)
| | - Carlo Riccardo Rossi
- Soft-Tissue, Peritoneum and Melanoma Surgical Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, 35131 Padua, Italy; (C.C.); (A.V.); (C.R.R.); (S.M.)
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University of Padua, 35131 Padua, Italy; (P.D.F.); (R.S.)
| | - Simone Mocellin
- Soft-Tissue, Peritoneum and Melanoma Surgical Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, 35131 Padua, Italy; (C.C.); (A.V.); (C.R.R.); (S.M.)
- Department of Surgery, Oncology and Gastroenterology (DISCOG), University of Padua, 35131 Padua, Italy; (P.D.F.); (R.S.)
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