HMGB1 overexpression promotes a malignant phenotype and radioresistance in ESCC.

HMGB1 overexpression promotes a malignant phenotype and radioresistance in ESCC.
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HMGB1过表达促进食管鳞癌的恶性表型和放射抗性

DOI:
10.7150/jca.73761
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发表时间:
2022
期刊:
影响因子:
3.9
通讯作者:
Zhu, Shuchai
Zhu, Shuchai
中科院分区:
医学3区
文献类型:
--
作者:
Dong, Jing;Zhang, Xueyuan;Du, Xingyu;Zou, Naiyi;Shen, Wenbin;Ma, Ming;Wang, Yaojie;Zhu, Shuchai

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食管癌是一种常见的恶性肿瘤,一般采用放射治疗。高迁移率族蛋白1(HMGB 1)在肿瘤细胞增殖、迁移和细胞周期进程中起重要作用。在这里,我们的目的是澄清HMGB 1对食管鳞状细胞癌(ESCC)细胞系的放射抗性和患者生存的影响。我们对39例I-III期ESCC患者的活检标本进行了HMGB 1的免疫组化检测,并按HMGB 1表达状态分组。然后,通过Kaplan-Meier生存分析计算1年、3年、5年和10年总生存结局。免疫荧光染色检测照射前后HMGB 1的细胞定位。使用慢病毒构建具有差异HMGB 1表达的稳定细胞系(KYSE 30和KYSE 510)。此外,我们通过蛋白质印迹法检测了HMGB 1过表达组和阴性对照组中磷酸化组蛋白H2 AX(γ-H2 AX)的表达。HMGB 1阴性表达与上级ESCC患者10年生存率相关(P=0.016)。HMGB 1过表达促进细胞迁移、增殖和辐射抗性,并减轻辐射诱导的G 0/G1期细胞周期阻滞。这表明HMGB 1阳性表达与不利的临床结果相关,HMGB 1过表达可能促进ESCC细胞的恶性表型,并通过调节ESCC细胞周期分布诱导辐射抗性。
Esophageal cancer is a common malignant disease that is generally treated with radiotherapy. High mobility group box 1 (HMGB1) plays an essential role in tumor cell proliferation, migration, and cell cycle progression. Here, we aimed to clarify the effects of HMGB1 on radioresistance in esophageal squamous cell carcinoma (ESCC) cell lines and patient survival. We performed immunohistochemistry for HMGB1 in biopsy samples of 39 stage I-III ESCC patients grouped by HMGB1 expression status. Then, 1‐, 3‐, 5-, and 10‐year overall survival outcomes were calculated by Kaplan-Meier survival analysis. The cellular localization of HMGB1 was examined before and after irradiation by Immunofluorescence staining. Stable cell lines (KYSE30 and KYSE510) with differential HMGB1 expression were constructed using lentiviruses. Furthermore, we examined phosphorylated histone H2AX (γ-H2AX) expression in both HMGB1 overexpression and negative control groups by western blotting. HMGB1-negative expression was associated with superior ESCC patient 10-year survival (P=0.016). HMGB1 overexpression promoted cell migration, proliferation, and radioresistance and mitigated cell cycle arrest at the G0/G1 phase induced by irradiation. This demonstrates that HMGB1-positive expression is correlated with unfavorable clinical outcomes, and HMGB1 overexpression may promote the malignant phenotype of ESCC cells and induce radioresistance by regulating cell cycle distribution in ESCC.
放疗诱导的细胞死亡激活旁分泌 HMGB1-TLR2 信号并加速胰腺癌转移
DOI: 10.1186/s13046-018-0726-2
发表时间: 2018-04-03
期刊: Journal of experimental & clinical cancer research : CR
影响因子: --
作者:
Chen X;Zhang L;Jiang Y;Song L;Liu Y;Cheng F;Fan X;Cao X;Gong A;Wang D;Zhu H
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发表时间: 2021-07
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DOI: 10.1186/s13014-017-0802-3
发表时间: 2017-04-04
期刊: Radiation oncology (London, England)
影响因子: --
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DOI: 10.1002/1878-0261.12043
发表时间: 2017-04
期刊: Molecular oncology
影响因子: 6.6
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Cheng DD;Li J;Li SJ;Yang QC;Fan CY
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DOI: 10.1038/cmi.2016.34
发表时间: 2017-01
影响因子: 24.1
作者:
通讯作者: --