Polimorfismos del gen de interleucina 10 y respuesta virológica sostenida en pacientes cubanos coinfectados con virus de hepatitis C y virus de inmunodeficiencia humana / Interleukin-10 gene polymorphisms and sustained virological response in Cuban patients coinfected with hepatitis C virus and human immunodeficiency virus

Introducción: En pacientes infectados con el virus de la hepatitis C se demostró que los polimorfismos de un simple nucleótido del gen de la interleucina 10 (IL10), influyen en la respuesta virológica sostenida al tratamiento con interferón y ribavirina, y en la inmunopatogénesis de la enfermedad. Objetivo: Determinar la frecuencia de los polimorfismos de un simple nucleótido de la región promotora del gen de la interleucina 10, según respuesta virológica sostenida y grado de lesión hepática. Métodos: Se realizó un estudio descriptivo, de corte transversal y se determinó la carga del virus de la hepatitis C por RT-PCR en tiempo real. Se estudiaron 25 pacientes cubanos con virus de inmunodeficiencia humana coinfectados con VHC, 24 semanas después del tratamiento con interferón y ribavirina. Para evaluar la variabilidad genética de la interleucina 10, los polimorfismos de un simple nucleótido se identificaron por secuenciación nucleotídica, -592 (A>C) y -819 (T>C). El grado de fibrosis hepática se calculó por el índice aspartato aminotransferasa/plaquetas. Resultados: El 44,0 por ciento (11/25) de los pacientes lograron respuesta virológica sostenida, y en el 56,0 por ciento (14/25) restante no se obtuvo esta. En los individuos en que se dio la respuesta predominaron los genotipos bajos productores de la interleucina 10, -592AA (36,3 por ciento vs. 21,4 por ciento) y -819TT (54,5 por ciento vs. 21,4 por ciento). En estos casos, el análisis de la frecuencia alélica mostró mayor frecuencia del alelo T para el SNP -819 (p= 0,0470). El índice aspartato aminotransferasa/plaquetas fue compatible con fibrosis hepática sin cirrosis en pacientes sin respuesta virológica sostenida, mientras que en los coinfectados que tuvieron respuesta indicó ausencia de lesión hepática. Conclusiones: Los resultados sugieren que las variantes de los polimorfismos de un simple nucleótido del gen de la interleucina 10 evaluados, podrían estar relacionados con la respuesta virológica sostenida y la patogénesis de la hepatitis C en los pacientes estudiados(AU)

Introduction: The study of patients infected with hepatitis C virus revealed that polymorphisms of a single nucleotide of the interleukin-10 (IL10) gene influence the sustained virological response to the treatment with interferon and ribavirin, and the immunopathogenesis of the disease. Objective: Determine the frequency of single-nucleotide polymorphisms from the interleukin-10 gene promoter region according to the sustained virological response and the degree of liver injury. Methods: A descriptive cross-sectional study was conducted and hepatitis C viral load was determined by RT-PCR. A sample of 25 Cuban HIV/HCV coinfected patients were studied 24 weeks after treatment with interferon and ribavirin. To evaluate the genetic variability of interleukin 10, the single-nucleotide polymorphisms were identified by nucleotide sequencing, -592 (A>C) and -819 (T>C). The degree of liver fibrosis was estimated by the aspartate aminotransferase / platelet index. Results: Of the patients studied, 44.0 percent (11/25) achieved a sustained virological response and 56.0 percent (14/25) did not. In individuals displaying the response, a predominance was found of low interleukin-10 producing genotypes, -592AA (36.3 percent vs. 21.4 percent) and -819TT (54.5 percent vs. 21.4 percent). In those cases, allele frequency analysis showed a greater allele T frequency for SNP -819 (p= 0.0470). The aspartate aminotransferase / platelet index was compatible with kidney fibrosis without cirrhosis in patients without a sustained virological response, and indicated an absence of liver injury in coinfected patients displaying a response. Conclusions: Results suggest that the variants evaluated of single-nucleotide polymorphisms of the interleukin-10 gene could be related to the sustained virological response and the pathogenesis of hepatitis C in the patients studied(AU)

Is Infantile Inflammatory Bowel Disease Curable with Hematopoietic Stem Cell Transplantation? / 대한소화기학회지

No abstract available.

Association of IL10, IL10RA, and IL10RB Polymorphisms with Benign Prostate Hyperplasia in Korean Population

Cytokines such as interleukin 10 (IL10) may play an important role in the process of inflammation. The aim of this study was to analyze the association between IL10, IL10RA and IL10RB single nucleotide polymorphisms (SNPs), and benign prostate hyperplasia (BPH) in Korean population. All patients with BPH were divided into two groups according to international porostate symptom score (IPSS), prostate specific antigen (PSA) level, Qmax, and prostate volume. We selected two IL10 SNPs (rs1518111 and rs1554286), three IL10RA SNPs (rs2256111, rs4252243, and rs2228054), and two IL10RB SNPs (rs999788 and rs2834167). Genotypes of seven SNPs were determined through direct sequencing. The G/G genotype of IL10RB polymorphism (rs2834167) was associated with a high PSA level compared with the A/G + A/A genotypes (P = 0.009). Of IL10 SNP, the A/A genotype of rs1518111 and T/T genotype of rs1554286 were associated with small prostate volume, respectively (P = 0.011, P = 0.014). Moreover, the T/T genotype of IL10RB polymorphism (rs999788) was associated with high prostatic volume compared with the T/C + C/C genotypes (P = 0.033). The linkage disequilibrium (LD) blocks were formed in IL10 and IL10RA. However, haplotypes in the LD block were not associated with BPH. It is concluded that there is a strong association between the IL10 and IL10RB SNPs, and BPH in Korean population.