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Fatty Acid Binding Protein 5 (FABP5) Promotes Aggressiveness of Gastric Cancer Through Modulation of Tumor Immunity.
Journal of Gastric Cancer ( IF 2.5 ) Pub Date : 2023-04-01 , DOI: 10.5230/jgc.2023.23.e19
Mei-Qing Qiu 1, 2, 3 , Hui-Jun Wang 2 , Ya-Fei Ju 2 , Li Sun 2 , Zhen Liu 2 , Tao Wang 4 , Shi-Feng Kan 3 , Zhen Yang 3 , Ya-Yun Cui 2 , You-Qiang Ke 5 , Hong-Min He 3 , Shu Zhang 1, 2
Affiliation  

PURPOSE Gastric cancer (GC) is the second most lethal cancer globally and is associated with poor prognosis. Fatty acid-binding proteins (FABPs) can regulate biological properties of carcinoma cells. FABP5 is overexpressed in many types of cancers; however, the role and mechanisms of action of FABP5 in GC remain unclear. In this study, we aimed to evaluate the clinical and biological functions of FABP5 in GC. MATERIALS AND METHODS We assessed FABP5 expression using immunohistochemical analysis in 79 patients with GC and evaluated its biological functions following in vitro and in vivo ectopic expression. FABP5 targets relevant to GC progression were determined using RNA sequencing (RNA-seq). RESULTS Elevated FABP5 expression was closely associated with poor outcomes, and ectopic expression of FABP5 promoted proliferation, invasion, migration, and carcinogenicity of GC cells, thus suggesting its potential tumor-promoting role in GC. Additionally, RNA-seq analysis indicated that FABP5 activates immune-related pathways, including cytokine-cytokine receptor interaction pathways, interleukin-17 signaling, and tumor necrosis factor signaling, suggesting an important rationale for the possible development of therapies that combine FABP5-targeted drugs with immunotherapeutics. CONCLUSIONS These findings highlight the biological mechanisms and clinical implications of FABP5 in GC and suggest its potential as an adverse prognostic factor and/or therapeutic target.

中文翻译:

脂肪酸结合蛋白 5 (FABP5) 通过调节肿瘤免疫力促进胃癌的侵袭性。

目的胃癌 (GC) 是全球第二大致命癌症,与预后不良有关。脂肪酸结合蛋白 (FABPs) 可以调节癌细胞的生物学特性。FABP5 在许多类型的癌症中过度表达;然而,FABP5 在 GC 中的作用和作用机制仍不清楚。在这项研究中,我们旨在评估 FABP5 在 GC 中的临床和生物学功能。材料和方法 我们使用免疫组化分析评估了 79 名 GC 患者的 FABP5 表达,并评估了其在体外和体内异位表达后的生物学功能。使用 RNA 测序 (RNA-seq) 确定与 GC 进展相关的 FABP5 目标。结果 FABP5 表达升高与不良预后密切相关,FABP5 的异位表达促进增殖、侵袭、迁移、和 GC 细胞的致癌性,从而表明其在 GC 中的潜在促癌作用。此外,RNA-seq 分析表明 FABP5 激活免疫相关通路,包括细胞因子-细胞因子受体相互作用通路、白细胞介素 17 信号通路和肿瘤坏死因子信号通路,这表明可能开发结合 FABP5 靶向药物的疗法的重要依据与免疫疗法。结论 这些发现突出了 FABP5 在 GC 中的生物学机制和临床意义,并表明其作为不良预后因素和/或治疗靶点的潜力。白细胞介素 17 信号和肿瘤坏死因子信号,表明可能开发将 FABP5 靶向药物与免疫疗法相结合的疗法的重要依据。结论 这些发现突出了 FABP5 在 GC 中的生物学机制和临床意义,并表明其作为不良预后因素和/或治疗靶点的潜力。白细胞介素 17 信号和肿瘤坏死因子信号,表明可能开发将 FABP5 靶向药物与免疫疗法相结合的疗法的重要依据。结论 这些发现突出了 FABP5 在 GC 中的生物学机制和临床意义,并表明其作为不良预后因素和/或治疗靶点的潜力。
更新日期:2023-04-01
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