PINK1

Overview

PINK1 (PTEN-induced kinase 1) encodes a mitochondria-targeted serine/threonine kinase involved in mitophagy and mitochondrial quality control. It is transcriptionally regulated by MYC family proteins, linking it to neuroblastoma biology. Germline variants in PINK1 have been identified in neuroblastoma patients, suggesting a role in cancer predisposition.

Alterations observed in the corpus

• Germline variants p.Leu437Pro and p.Arg279His identified in 2 neuroblastoma patients; PINK1 is transcriptionally regulated by MYC proteins, suggesting a functional link to neuroblastoma pathogenesis PMID:23334666

Cancer types (linked)

• Neuroblastoma: germline predisposition variants identified in high-risk patients; PINK1 expression is regulated by MYCN, a key oncogene in neuroblastoma PMID:23334666

Co-occurrence and mutual exclusivity

• No co-occurrence or mutual exclusivity patterns reported in the corpus.

Therapeutic relevance

• No direct therapeutic relevance reported in the corpus.

Open questions

• Whether PINK1 germline variants confer significant neuroblastoma predisposition risk requires validation in larger cohorts; the study cohort was limited to European American controls.

Sources

• PMID:23334666 — Neuroblastoma WES/WGS, 240 tumors, Broad Institute

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