Journal
JOURNAL OF CELLULAR AND MOLECULAR MEDICINE
Volume 25, Issue 19, Pages 9319-9330Publisher
WILEY
DOI: 10.1111/jcmm.16868
Keywords
autophagy; HOXA1; long non-coding RNA DLX6-AS1; metastasis; microRNA-193b-3p; thyroid carcinoma
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This study focused on the role of DLX6-AS1 in thyroid carcinoma, showing that DLX6-AS1 depletion inhibits TC cell growth and promotes autophagy by up-regulating miR-193b-3p and down-regulating HOXA1.
Long non-coding RNA DLX6 antisense RNA 1 (DLX6-AS1) lists a critical position in thyroid carcinoma (TC) development. However, the overall comprehension about DLX6-AS1, microRNA (miR)-193b-3p and homeobox A1 (HOXA1) in TC is not thoroughly enough. Concerning to this, this work is pivoted on DLX6-AS1/miR-193b-3p/HOXA1 axis in TC cell growth and autophagy. TC tissues and adjacent normal thyroid tissues were collected, in which expression of DLX6-AS1, miR-193b-3p and HOXA1 was tested, together with their interactions. TC cells were transfected with DLX6-AS1/miR-193b-3p-related oligonucleotides or plasmids to test cell growth and autophagy. Tumorigenesis in nude mice was observed. DLX6-AS1 and HOXA1 were up-regulated, and miR-193b-3p was down-regulated in TC. Depleted DLX6-AS1 or restored miR-193b-3p disturbed cell growth and promoted autophagy. DLX6-AS1 targeted miR-193b-3p and positively regulated HOXA1. miR-193b-3p inhibition mitigated the impaired tumorigenesis induced by down-regulated DLX6-AS1. Tumorigenesis in nude mice was consistent with that in cells. It is clear that DLX6-AS1 depletion hinders TC cell growth and promotes autophagy via up-regulating miR-193b-3p and down-regulating HOXA1.
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