Page 98 - 南京医科大学学报自然科学版
P. 98

第42卷第2期
               ·244 ·                            南 京    医 科 大 学 学         报                        2022年2月


              明 rs2464196 位点的改变与血清 C 反应蛋白浓度                          id and plasma cholesterol metabolism[J]. Nat Genet,
              异常、冠状动脉疾病、糖尿病的遗传易感性密切                                  2001,27(4):375-382
              相关  [10,19-20] 。目前 rs2464196 位点与乳腺癌相关的            [5] ABEL E V,GOTO M,MAGNUSON B,et al. HNF1A is a
              研究报道较少。本研究结果表明,rs2464196位点的                            novel oncogene that regulates human pancreatic cancer
                                                                     stem cell properties[J]. Elife,2018,7:e33947
              次要等位基因A在人群中能够降低乳腺癌的发病风
                                                                [6] BENARD O,QIAN X,LIANG H,et al. p21CIP1 promotes
              险,是一个保护性等位基因(OR=0.80)。进一步分
                                                                     mammary cancer ⁃ initiating cells via activation of Wnt/
              层分析,发现 rs2464196 位点在年龄、初潮年龄、首
                                                                     TCF1/CyclinD1 signaling[J]. Mol Cancer Res,2019,17
              胎活产年龄各亚组中与乳腺癌发病风险均显著相                                 (7):1571⁃1581
              关,在年龄较大、月经初潮晚、初次生育早的亚组中                           [7] MATSUI A,FUJIMOTO J,ISHIKAWA K,et al. Hepato⁃

              降低乳腺癌发病风险的效应更为显著。根据 I⁃Mu⁃                              cyte nuclear factor 1 beta induces transformation and epi⁃
              tant 和 iStable 生 物 信 息 学 在 线 分 析 ,rs2464196            thelial⁃to⁃mesenchymal transition[J]. FEBS Lett,2016,
             (Ser487Asn)的改变表现为良性的氨基酸变化,可增                            590(8):1211-1221
              加本体 HNF1A 蛋白的稳定性。eQTL 分析显示                        [8] MA Y,GONG S,WANG X,et al. New clinical screening
                                                                     strategy to distinguish HNF1A variant ⁃ induced diabetes
              rs2464196 多态位点与正常乳腺组织中的 C12orf43
                                                                     from young early⁃onset type 2 diabetes in a Chinese popu⁃
              基因和SPPL3基因表达相关。C12orf43基因、SPPL3
                                                                     lation[J]. BMJ Open Diabetes Res Care,2020,8(1):
              基因与HNF1A基因在染色体上位置比较接近,其中
                                                                     e000745
              C12orf43 与 HNF1A 基因相距仅为 1 kb。通过检索                 [9] TIN A,MARTEN J,HALPERIN KUHNS V L,et al. Tar⁃
              GEPIA数据库,发现C12orf43、SPPL3基因与HNF1A                      get genes,variants,tissues and transcriptional pathways
              基因在乳腺癌组织样本中存在较强的线性关系                                   influencing human serum urate levels[J]. Nat Genet,
                                        - 10
             (C12orf43,r=0.18,P=7.3 × 10 ;SPPL3,r=0.12,P=            2019,51(10):1459-1474
              2.6×10 )。这些结果提示,rs2464196位点可能通过                   [10] WAKIL S M,MUIYA N P,TAHIR A I,et al. A new sus⁃
                    -5
              调控邻近C12orf43和SPPL3基因间接调控本体基因                           ceptibility locus for myocardial infarction,hypertension,
              HNF1A,在乳腺癌的发生发展过程中发挥了重要的                               type 2 diabetes mellitus,and dyslipidemia on chromo⁃
                                                                     some 12q24[J]. Dis Markers,2014,2014:291419
              作用。
                                                                [11] PIERCE B L,AHSAN H. Genome⁃wide“pleiotropy scan”
                  总之,本研究发现 HNF1A 基因上的多态位点
                                                                     identifies HNF1A region as a novel pancreatic cancer sus⁃
              rs2464196与乳腺癌发病风险显著相关,提示该位点
                                                                     ceptibility locus[J]. Cancer Res,2011,71(13):4352-
              可能是中国人群乳腺癌的潜在遗传易感标志物。                                  4358
              本研究的局限性在于样本量相对偏小,且全部来自                            [12] SCHAID D J,MCDONNELLl S K,FITZGERALD L M,et
              江苏地区,研究结果的外推性可能受到限制,需要                                 al. Two⁃stage study of familial prostate cancer by whole⁃
              进一步在不同人群中进行验证。此外,rs2464196多                            exome sequencing and custom capture identifies 10 novel
              态位点和 HNF1A 基因在乳腺癌发生发展中的确切                              genes associated with the risk of prostate cancer[J]. Eur
              作用机制有待进一步阐明。                                           Urol,2021,79(3):353-361
                                                                [13] BURGHAUS S,FASCHING P A,HÄBERLE L,et al. Ge⁃
             [参考文献]
                                                                     netic risk factors for ovarian cancer and their role for en⁃
             [1] SUNG H,FERLAY J,SIEGEL R L,et al. Global cancer     dometriosis risk[J]. Gynecol Oncol,2017,145(1):142-
                   statistics 2020:GLOBOCAN estimates of incidence and  147
                   mortality worldwide for 36 cancers in 185 countries[J].  [14] TONG Y,QU Y,LI S,et al. Cumulative evidence for rela⁃
                   CA Cancer J Clin,2021,71(3):209-249               tionships between multiple variants of HNF1B and the
             [2] BASELGA J,NORTON L. Focus on breast cancer[J].      risk of prostate and endometrial cancers[J]. BMC Med
                   Cancer Cell,2002,1(4):319-322                     Genet,2018,19(1):128
             [3] CEREGHINI S,OTT M O,POWER S,et al. Expression  [15] PAINTER J N,O'MARA T A,BATRA J,et al. Fine⁃map⁃
                   patterns of vHNF1 and HNF1 homeoproteins in early post⁃  ping of the HNF1B multicancer locus identifies candidate
                   implantation embryos suggest distinct and sequential de⁃  variants that mediate endometrial cancer risk[J]. Hum
                   velopmental roles[J]. Development,1992,116:783-797  Mol Genet,2015,24:1478-1492
             [4] SHIH D Q,BUSSEN M,SEHAYEK E,et al. Hepatocyte  [16] PARADA H J R,CLEVELAND R J,NORTH K E,et al.
                   nuclear factor⁃1 alpha is an essential regulator of bile ac⁃                 (下转第251页)
   93   94   95   96   97   98   99   100   101   102   103