Fig. 1: Hypoxia-induced oxaliplatin chemoresistance and enhanced HOTAIR expression in CRC.

A Dose-response inhibition of CRC cells (LoVo, HT-29, and HCT116) to oxaliplatin under normoxia or hypoxia conditions. The relative cell viability of CRC cells was detected by CCK-8 assay. B Comparison of HIF-1α protein level in CRC cells between hypoxia and normal treatments. C Changes in lncRNA expressions under hypoxic treatment in LoVo cells. D Comparison of HOTAIR expression in CRC tissues to normal tissues. E Kaplan–Meier survival curve of COAD cancer patients with different HOTAIR expression (high vs low).