HOXD8

Overview

HOXD8 is a homeobox transcription factor belonging to the HOXD cluster on chromosome 2q31. HOX genes encode transcription factors that regulate developmental patterning; their dysregulation has been implicated in various cancers. HOXD8 has been identified as a candidate transcriptional-effector resistance gene in BRAF-inhibitor-treated melanoma.

Alterations observed in the corpus

  • Nonsense mutation identified in one early-resistance tumor from a BRAF-inhibitor melanoma cohort; proposed as a candidate transcriptional-effector resistance gene for dabrafenib resistance PMID:24265153

Cancer types (linked)

  • Melanoma: nonsense mutation in early BRAF-inhibitor resistance setting PMID:24265153

Co-occurrence and mutual exclusivity

Therapeutic relevance

  • Loss-of-function mutation associated with early resistance to dabrafenib (BRAF inhibitor) in melanoma; proposed as contributing to pan-MAPK pathway resistance PMID:24265153

Open questions

  • Whether HOXD8 loss mechanistically drives BRAF-inhibitor resistance or is a passenger event remains unresolved PMID:24265153

Sources

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