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第42卷第12期 金多晨,黄可婷,徐 妙,等. 基于16S rDNA扩增子测序探究脱氧胆酸对肠型胃癌模型INS⁃GAS
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内菌群测定 [19] 。因此,本研究测定的小鼠胃内容物 crobes,2020,11(4):820-841
中菌群成分,可以视为类似于人胃液内菌群结构测 [9] PINZON⁃GUZMAN C,MEYER A R,WISE R,et al. Eval⁃
定。本研究在实验分组上存在一些不完善之处,在 uation of lineage changes in the gastric mucosa following
不考虑小鼠数量限制的前提下设置4个分组更为严 infection with helicobacter pylori and specified intestinal
flora in INS⁃GAS mice[J]. J Histochem Cytochem,2019,
谨,即 FVB/N(NS)、FVB/N(DCA)、INS⁃GAS(NS)和
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INS⁃GAS(DCA)4个干预组。另外,仅采用DCA饮水
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干预3个月,后续应进一步延长干预时间至INS⁃GAS
and inflammation activate gastric cardia stem cells in a
小鼠成瘤,明确小鼠胃癌发生时胃内菌群变化。 mouse model of barrett⁃like metaplasia[J]. Cancer Cell,
综上所述,次级胆汁酸虽是除 Hp 外的另一重 2012,21(1):36-51
要致胃癌因子,但本研究发现DCA饮水干预尚存在 [11] YUAN T,NI Z,HAN C,et al. SOX2 interferes with the
对胃内菌群潜在的有益调节,如蓝藻细菌属丰度增 function of CDX2 in bile acid⁃induced gastric intestinal
加,促癌乳杆菌属丰度降低。毛螺菌科 Anaerostipes metaplasia[J]. Cancer Cell Int,2019,19:24
菌属虽是肠道产丁酸菌属,但在胃内作用尚不清 [12] RIVIÈRE A,SELAK M,LANTIN D,et al. Bifidobacteria
楚,既往文献尚未见报道在胃癌发生发展中丰度改 and butyrate ⁃ producing colon bacteria:importance and
变的情况。本研究发现 DCA 干预后 Anaerostipes 菌 strategies for their stimulation in the human gut[J]. Front
Microbiol,2016,7:979
属丰度显著上升,此种变化仍需后续深入探究。
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