Diethylhexyl Phthalate and Bisphenol A Promote Vincristine and Tamoxifen Resistance in Vitro

Environmental estrogen active compounds are strong determinants of estrogen receptor (ER)-positive breast cancers, and increased evidence indicates their contribution to chemotherapy resistance. In the current study, the efficacy of vincristine and tamoxifen, with the presence of diethylhexyl phthalate (DEHP) and bisphenol A (BPA) and the possible involvement of estrogen and estrogen receptor-related mechanisms, was evaluated in an ER+ mammary tumor cancer cell line, MCF-7. Chemotherapeutics tamoxifen as an estrogen receptor modulator and vincristine as an antimitotic compound were selected for evaluation against the presence of common endocrine disrupters. BPA and DEHP preincubation at their proliferative concentrations for 4 h was found to decrease the cytotoxicity of vincristine. mRNA and protein expression of ESR1 and ESR 2 were decreased by vincristine, while this decrease was reversed by DEHP and BPA. Both BPA and DEHP were able to interfere with the cytotoxic activity of vincristine against MCF-7 cells through ESR1 and ESR2. This study provides in vitro toxicological evidence for vincristine resistance and its relation to estrogen active environmental pollutants in ER+ breast cancer cells.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:35

Enthalten in:

Chemical research in toxicology - 35(2022), 3 vom: 21. März, Seite 538-546

Sprache:

Englisch

Beteiligte Personen:

Uyar, Recep [VerfasserIn]
Yurdakok-Dikmen, Begum [VerfasserIn]
Turgut, Yagmur [VerfasserIn]
Filazi, Ayhan [VerfasserIn]

Links:

Volltext

Themen:

094ZI81Y45
5J49Q6B70F
Benzhydryl Compounds
Bisphenol A
C42K0PH13C
Diethylhexyl Phthalate
Endocrine Disruptors
Estrogen Receptor alpha
Estrogens
Journal Article
MLT3645I99
Phenols
Receptors, Estrogen
Tamoxifen
Vincristine

Anmerkungen:

Date Completed 25.04.2022

Date Revised 25.04.2022

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acs.chemrestox.2c00002

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM337939713