Gynecology and pelvic medicine · 2025
Association of SNHG17/CDKN2B-AS1 polymorphisms with salpingitis and fallopian tube carcinoma susceptibility in the Chinese Han population.
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Tang Lin, Zhu Zhongyi, Hu Qian
Аннотация
BACKGROUND: Fallopian tube carcinoma is one of the most malignant gynecological tumors, with its exact etiology remaining largely unclear. Genetic factors contribute to ~20% of ovarian, fallopian tube, and peritoneal cancers, and gene polymorphisms, including those in non-coding RNAs (ncRNAs) like SNHG17 and CDKN2B-AS1, are linked to gynecologic malignancies. However, research on such polymorphisms in fallopian tube carcinoma is scarce, especially regarding these two genes. Given the correlation between chronic inflammation and malignant tumors (including fallopian tube carcinoma), this study explores the association between SNHG17/CDKN2B-AS1 polymorphisms and susceptibility to salpingitis and high-grade serous fallopian tube carcinoma (HGSC).
METHODS: A case-control study was conducted, enrolling 194 salpingitis cases, 195 HGSC cases, and 206 normal controls. Specimens (paraffin-embedded fallopian tube tissue wax blocks) were collected from June 2015 to December 2019. Genomic DNA was extracted, and genotyping of SNHG17 rs1578462, CDKN2B-AS1 rs3217992, and rs4977756 was performed using restriction fragment length polymorphism polymerase chain reaction (RFLP-PCR). Hardy-Weinberg equilibrium (HWE) was assessed in the control group. Genetic association analyses included allelic, additive, dominant, and recessive models for each single nucleotide polymorphism (SNP): rs1578462, rs3217992, and rs4977756 were all tested under these four models. Stratification analyses were performed by calculating odds ratios (ORs) with corresponding 95% confidence intervals (CIs).
RESULTS: Significant associations were detected between the minor allele genotypes of SNHG17 SNP rs1578462 and HGSC susceptibility, with the CC genotype significantly associated with a decreased risk of HGSC. The genotype of rs3217992 may be associated with higher International Federation of Gynecology and Obstetrics (FIGO) stages, while the genotype of rs4977756 may be associated with lymphatic metastasis. Additionally, the combined genotypes of rs1578462-rs3217992 and rs3217992-rs4977756 may be related to HGSC. Regarding salpingitis, no significant associations were observed between the three SNPs (rs1578462, rs3217992, rs4977756) and salpingitis susceptibility (all P>0.05).
CONCLUSIONS: To our knowledge, our study is the first to report that SNHG17/CDKN2B-AS1 gene polymorphisms are risk factors for HGSC in a Han Chinese population from Sichuan, suggesting their potential contributions to the pathogenesis and development of HGSC. However, no significant associations were found between these SNPs and salpingitis susceptibility. Given the genetic heterogeneity among Han Chinese populations across different regions, these findings from a single center in Sichuan should be validated in multi-regional cohorts to generalize their applicability.
METHODS: A case-control study was conducted, enrolling 194 salpingitis cases, 195 HGSC cases, and 206 normal controls. Specimens (paraffin-embedded fallopian tube tissue wax blocks) were collected from June 2015 to December 2019. Genomic DNA was extracted, and genotyping of SNHG17 rs1578462, CDKN2B-AS1 rs3217992, and rs4977756 was performed using restriction fragment length polymorphism polymerase chain reaction (RFLP-PCR). Hardy-Weinberg equilibrium (HWE) was assessed in the control group. Genetic association analyses included allelic, additive, dominant, and recessive models for each single nucleotide polymorphism (SNP): rs1578462, rs3217992, and rs4977756 were all tested under these four models. Stratification analyses were performed by calculating odds ratios (ORs) with corresponding 95% confidence intervals (CIs).
RESULTS: Significant associations were detected between the minor allele genotypes of SNHG17 SNP rs1578462 and HGSC susceptibility, with the CC genotype significantly associated with a decreased risk of HGSC. The genotype of rs3217992 may be associated with higher International Federation of Gynecology and Obstetrics (FIGO) stages, while the genotype of rs4977756 may be associated with lymphatic metastasis. Additionally, the combined genotypes of rs1578462-rs3217992 and rs3217992-rs4977756 may be related to HGSC. Regarding salpingitis, no significant associations were observed between the three SNPs (rs1578462, rs3217992, rs4977756) and salpingitis susceptibility (all P>0.05).
CONCLUSIONS: To our knowledge, our study is the first to report that SNHG17/CDKN2B-AS1 gene polymorphisms are risk factors for HGSC in a Han Chinese population from Sichuan, suggesting their potential contributions to the pathogenesis and development of HGSC. However, no significant associations were found between these SNPs and salpingitis susceptibility. Given the genetic heterogeneity among Han Chinese populations across different regions, these findings from a single center in Sichuan should be validated in multi-regional cohorts to generalize their applicability.