» Articles » PMID: 29324748

Trans10,cis12 Conjugated Linoleic Acid Inhibits Proliferation and Migration of Ovarian Cancer Cells by Inducing ER Stress, Autophagy, and Modulation of Src

Overview
Journal PLoS One
Date 2018 Jan 12
PMID 29324748
Citations 13
Authors
Affiliations
Soon will be listed here.
Abstract

The goal of this study was to investigate the anti-cancer effects of Trans10,cis12 conjugated linoleic acid (t10,c12 CLA). MTT assays and QCM™ chemotaxis 96-wells were used to test the effect of t10,c12 CLA on the proliferation and migration and invasion of cancer cells. qPCR and Western Blotting were used to determine the expression of specific factors. RNA sequencing was conducted using the Illumina platform and apoptosis was measured using a flow cytometry assay. t10,c12 CLA (IC50, 7 μM) inhibited proliferation of ovarian cancer cell lines SKOV-3 and A2780. c9,t11 CLA did not attenuate the proliferation of these cells. Transcription of 165 genes was significantly repressed and 28 genes were elevated. Genes related to ER stress, ATF4, CHOP, and GADD34 were overexpressed whereas EDEM2 and Hsp90, genes required for proteasomal degradation of misfolded proteins, were downregulated upon treatment. While apoptosis was not detected, t10,c12 CLA treatment led to 9-fold increase in autophagolysosomes and higher levels of LC3-II. G1 cell cycle arrest in treated cells was correlated with phosphorylation of GSK3β and loss of β-catenin. microRNA miR184 and miR215 were upregulated. miR184 likely contributed to G1 arrest by downregulating E2F1. miR215 upregulation was correlated with increased expression of p27/Kip-1. t10,c12 CLA-mediated inhibition of invasion and migration correlated with decreased expression of PTP1b and decreased Src activation by inhibiting phosphorylation at Tyr416. Due to its ability to inhibit proliferation and migration, t10,c12 CLA should be considered for treatment of ovarian cancer.

Citing Articles

Endoplasmic reticulum stress response pathway-mediated cell death in ovarian cancer.

Chen Q, Li C, Wei W, Li J, Liu F, Fu Y Front Oncol. 2024; 14:1446552.

PMID: 39319052 PMC: 11420017. DOI: 10.3389/fonc.2024.1446552.


The Roles of Autophagy-related miRNAs in Gynecologic Tumors: A Review of Current Knowledge for Possible Targeted Therapy.

Mobinikhaledi M, Faridzadeh A, Farkhondeh T, Pourhanifeh M, Samarghandian S Curr Mol Med. 2024; 24(10):1269-1281.

PMID: 39300715 DOI: 10.2174/0115665240263059231002093454.


Src kinase partially mediates cytokine-induced endothelial dysfunction.

Mauro A, Clemente L, Khurshid N, Shah D, Zheng J, Boeldt D Pregnancy Hypertens. 2023; 34:83-89.

PMID: 37864990 PMC: 10873000. DOI: 10.1016/j.preghy.2023.10.004.


Targeting endoplasmic reticulum stress signaling in ovarian cancer therapy.

Yan T, Ma X, Guo L, Lu R Cancer Biol Med. 2023; 20(10).

PMID: 37817482 PMC: 10618951. DOI: 10.20892/j.issn.2095-3941.2023.0232.


Bovine Colostrum Treatment of Specific Cancer Types: Current Evidence and Future Opportunities.

Alsayed A, Hasoun L, Khader H, Basheti I, Permana A Molecules. 2022; 27(24).

PMID: 36557775 PMC: 9785718. DOI: 10.3390/molecules27248641.


References
1.
Cho H, Kim E, Lim S, Kim M, Sung M, Kim J . Trans-10,cis-12, not cis-9,trans-11, conjugated linoleic acid inhibits G1-S progression in HT-29 human colon cancer cells. J Nutr. 2006; 136(4):893-8. DOI: 10.1093/jn/136.4.893. View

2.
Mosley E, McGuire M, Williams J, McGuire M . Cis-9, trans-11 conjugated linoleic acid is synthesized from vaccenic acid in lactating women. J Nutr. 2006; 136(9):2297-301. DOI: 10.1093/jn/136.9.2297. View

3.
Beppu F, Hosokawa M, Tanaka L, Kohno H, Tanaka T, Miyashita K . Potent inhibitory effect of trans9, trans11 isomer of conjugated linoleic acid on the growth of human colon cancer cells. J Nutr Biochem. 2006; 17(12):830-6. DOI: 10.1016/j.jnutbio.2006.01.007. View

4.
Gildea J, Harding M, Gulding K, Theodorescu D . Transmembrane motility assay of transiently transfected cells by fluorescent cell counting and luciferase measurement. Biotechniques. 2000; 29(1):81-6. DOI: 10.2144/00291st02. View

5.
Roskoski Jr R . Src kinase regulation by phosphorylation and dephosphorylation. Biochem Biophys Res Commun. 2005; 331(1):1-14. DOI: 10.1016/j.bbrc.2005.03.012. View