Anti-miR-135/SPOCK1 axis antagonizes the influence of metabolism on drug response in intestinal/colon tumour organoids

Author:

Babaei-Jadidi Roya,Kashfi Hossein,Alelwani Walla,Karimi Bakhtiari Ashkan,Kattan Shahad W.ORCID,Mansouri Omniah A.,Mukherjee AbhikORCID,Lobo Dileep N.ORCID,Nateri Abdolrahman S.ORCID

Abstract

AbstractLittle is known about the role of microRNAs (miRNAs) in rewiring the metabolism within tumours and adjacent non-tumour bearing normal tissue and their potential in cancer therapy. This study aimed to investigate the relationship between deregulated miRNAs and metabolic components in murine duodenal polyps and non-polyp-derived organoids (mPOs and mNPOs) from a double-mutant ApcMinFbxw7∆G mouse model of intestinal/colorectal cancer (CRC). We analysed the expression of 373 miRNAs and 12 deregulated metabolic genes in mPOs and mNPOs. Our findings revealed miR-135b might target Spock1. Upregulation of SPOCK1 correlated with advanced stages of CRCs. Knockdown of miR-135b decreased the expression level of SPOCK1, glucose consumption and lactic secretion in CRC patient-derived tumours organoids (CRC tPDOs). Increased SPOCK1 induced by miR-135b overexpression promoted the Warburg effect and consequently antitumour effect of 5-fluorouracil. Thus, combination with miR-135b antisense nucleotides may represent a novel strategy to sensitise CRC to the chemo-reagent based treatment.

Funder

Cancer Research UK

University of Jeddah

the Mayor of Gedling’s Charitable

Publisher

Springer Science and Business Media LLC

Subject

Cancer Research,Molecular Biology

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