Abstract Title:

Diethylhexyl phthalate (DEHP) regulates the proliferation and chemosensitivity of esophageal squamous cell carcinoma cells via regulation of PTEN.

Abstract Source:

Hum Cell. 2021 Mar 15. Epub 2021 Mar 15. PMID: 33721218

Abstract Author(s):

Jian Zhu, Xuesong Zhang, Bin Wen, Jing Chen, Yuntian Lu, Weijun Xu

Article Affiliation:

Jian Zhu


As one of the most prevalent and deadly cancers worldwide, esophageal squamous cell carcinoma (ESCC) can be directly exposed to endocrine-disrupting chemical (EDC). As a potential EDC, diethylhexyl phthalate (DEHP) can trigger the development of various cancers, while the potential effect of DEHP on the ESCC progression was not clear. Our present study revealed that DEHP can trigger the proliferation of ESCC cells and decrease the cisplatin (CDDP) and fluorouracil (5-FU) sensitivity. Mechanistical studies indicated that DEHP can decrease the transcription of PTEN, a well-characterized tumor suppressor, in ESCC cells. Over expression of PTEN can reverse DEHP-regulated ESCC cell proliferation and chemosensitivity. Further, DEHP can increase the expression of HES-1, which can bind with the promoter of PTEN to inhibit its transcription. Collectively, DEHP can increase proliferation while decrease chemosensitivity of ESCC cells via regulation of HES-1/PTEN axis. Further, daily expression of DEHP may be a potent risk factor for ESCC development.

Study Type : In Vitro Study

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