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Melanoma Risk and Survival among Organ Transplant Recipients
Journal article   Open access   Peer reviewed

Melanoma Risk and Survival among Organ Transplant Recipients

Hilary A Robbins, Christina A Clarke, Sarah T Arron, Zaria Tatalovich, Amy R Kahn, Brenda Y Hernandez, Lisa Paddock, Elizabeth L Yanik, Charles F Lynch, Bertram L Kasiske, …
Journal of investigative dermatology, Vol.135(11), pp.2657-2665
11/2015
DOI: 10.1038/jid.2015.312
PMCID: PMC4640996
PMID: 26270022
url
https://doi.org/10.1038/jid.2015.312View
Published (Version of record) Open Access

Abstract

Solid organ transplant recipients, who are medically immunosuppressed to prevent graft rejection, have increased melanoma risk, but risk factors and outcomes are incompletely documented. We evaluated melanoma incidence among 139,991 non-Hispanic white transplants using linked US transplant-cancer registry data (1987-2010). We used standardized incidence ratios (SIRs) to compare incidence with the general population and incidence rate ratios (IRRs) from multivariable Poisson models to assess risk factors. Separately, we compared post-melanoma survival among transplant recipients (n=182) and non-recipients (n=131,358) using multivariable Cox models. Among transplant recipients, risk of invasive melanoma (n=519) was elevated (SIR=2.20, 95% CI 2.01-2.39), especially for regional stage tumors (SIR=4.11, 95% CI 3.27-5.09). Risk of localized tumors was stable over time after transplantation but higher with azathioprine maintenance therapy (IRR=1.35, 95% CI 1.03-1.77). Risk of regional/distant stage tumors peaked within 4 years following transplantation and increased with polyclonal antibody induction therapy (IRR=1.65, 95% CI 1.02-2.67). Melanoma-specific mortality was higher among transplant recipients than non-recipients (hazard ratio 2.98, 95% CI 2.26-3.93). Melanoma exhibits increased incidence and aggressive behavior under transplant-related immunosuppression. Some localized melanomas may result from azathioprine, which acts synergistically with UV radiation, whereas T-cell-depleting induction therapies may promote late-stage tumors. Our findings support sun safety practices and skin screening for transplant recipients.
Multivariate Analysis Confidence Intervals Age Factors Humans Middle Aged Male Case-Control Studies Cause of Death Incidence Neoplasm Invasiveness - pathology Skin Neoplasms - mortality Adult Female Registries Transplant Recipients - statistics & numerical data Skin Neoplasms - pathology Risk Assessment Skin Neoplasms - immunology Proportional Hazards Models Melanoma - pathology Disease-Free Survival Melanoma - immunology Organ Transplantation - adverse effects Sex Factors Survival Analysis Poisson Distribution Immunocompromised Host Neoplasm Staging Melanoma - mortality

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