title: IL-10 and TNF-alpha polymorphisms in a sample of Sicilian patients affected by tuberculosis: implication for ageing and life span expectancy.
abstract: Human longevity seems to be directly correlated with optimal functioning of the immune system, suggesting that some genetic determinants of longevity might reside in those polymorphisms for the immune system genes that regulate immune responses, in particular cytokine gene polymorphisms. In fact, modification of cytokine network is a constant report in studies on age related modification of immune response. Moreover cytokine polymorphisms studies are indicating their involvement in the reshaping of cytokines network as an integral part of the scenario related to a successful ageing. A particular role might be attributed to the influence of cytokine polymorphisms on the efficiency of immune response against infectious diseases that have been the principal selection in oldest old. Here are reported data on the evaluation of the frequency of the functional polymorphisms at genes coding for TNF-alpha (-308G-->A) and IL-10 (-1082G-->A), analysed by ARMS-PCR, in a group of Sicilian patients affected by chronic lung tuberculosis (TBC) compared to that from a group of healthy individuals living in the same region. Data obtained demonstrated a reduction of -308GG TNF homozygous individuals in TBC affected subject group. In the same group a reduction of IL-10 -1082A/* carriers was found. Our results seem to suggest that multiple genetic traits may affect the capacity to cope with an infectious agents and this might predispose to an overt disease. Moreover these data are in agreement with previous reports suggesting that a balanced interaction among pro- and anti-inflammatory molecules it is a key point for conditioning the life span expectancy.
authors.affiliation: Gruppo di Studio sull'Immunosenescenza, Dipartimento di Biopatologia e Metodologie Biomediche, Università di Palermo, Corso Tukory 211, 90134, Palermo, Italy.
authors.forename: Letizia
authors.initials: L
authors.lastname: Scola
authors.forename: Antonio
authors.initials: A
authors.lastname: Crivello
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Marino
authors.forename: Vito
authors.initials: V
authors.lastname: Gioia
authors.forename: Alberto
authors.initials: A
authors.lastname: Serauto
authors.forename: Giuseppina
authors.initials: G
authors.lastname: Candore
authors.forename: Giuseppina
authors.initials: G
authors.lastname: Colonna-Romano
authors.forename: Calogero
authors.initials: C
authors.lastname: Caruso
authors.forename: Domenico
authors.initials: D
authors.lastname: Lio
mesh_terms: D000328:Adult; D000375:Aging / Q000235:genetics / Q000276:immunology*; D005787:Gene Frequency; D005838:Genotype; D006801:Humans; D016753:Interleukin-10 / Q000235:genetics*; D008017:Life Expectancy; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D012802:Sicily; D014397:Tuberculosis, Pulmonary / Q000235:genetics / Q000276:immunology*; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics*
chemical_list: D014409:Tumor Necrosis Factor-alpha; D016753:Interleukin-10