Open AccessHuman leukocyte antigen Class II alleles associated with acral lentiginous melanoma in Mexican Mestizo patients: A case-control study
Author(s) -
Rodrigo Roldán–Marín,
Lucía Rangel-Gamboa,
María Elisa Vega-Memije,
Susana Hernández-Doño,
Daniela Ruíz-Gómez,
Julio Granados
Publication year - 2021
Publication title -
indian journal of dermatology, venereology, and leprology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.514
H-Index - 45
eISSN - 0973-3922
pISSN - 0378-6323
DOI - 10.25259/ijdvl_627_19
Subject(s) - acral lentiginous melanoma , medicine , odds ratio , human leukocyte antigen , melanoma , allele , dermatology , immunology , antigen , biology , genetics , cancer research , gene
Background: Melanoma is an aggressive cutaneous cancer. Acral lentiginous melanoma is a melanoma subtype arising on palms, soles, and nail-units. The incidence, prevalence and prognosis differ among populations. The link between expression of major histocompatibility complex Class II alleles and melanoma progression is known. However, available studies report variable results regarding the association of melanoma with specific HLA Class II loci. Aims: The aim of the study was to determine HLA Class II allele frequencies in acral lentiginous melanoma patients and healthy Mexican Mestizo individuals. Methods: Eighteen patients with acral lentiginous melanoma and 99 healthy controls were recruited. HLA Class II typing was performed based on the sequence-specific oligonucleotide method. Results: Three alleles were associated with increased susceptibility to develop acral lentiginous melanoma, namely: HLA-DRB1*13:01; pC = 0.02, odds ratio = 6.1, IC95% = 1.4–25.5, HLA-DQA1*01:03; pC = 0.001, odds ratio = 9.3, IC95% = 2.7–31.3 and HLA-DQB1*02:02; pC = 0.01, odds ratio = 3.7, IC95% = 1.4–10.3. Limitations: The small sample size was a major limitation, although it included all acral lentiginous melanoma patients seen at the dermatology department of Dr. Manuel Gea González General Hospital during the study period. Conclusion: HLA-DRB1*13:01, HLA-DQB1*02:02 and HLA-DQA*01:03 alleles are associated with increased susceptibility to develop acral lentiginous melanoma in Mexican Mestizo patients.