- May 2022
DICER1 syndrome is an autosomal-dominant, pleiotropic, tumor-predisposition disorder arising from pathogenic germline variants in DICER1, which encodes an endoribonuclease integral to processing microRNAs (1).
Gene Name: DICER1 PMCID: PMC5443331 PMID: 28323992 HGNCID: not found Inheritance Pattern: autosomal dominant Disease Entity: thyroid cancer and familial multinodular doiter Mutation: germline loss-of-function mutation Zygosity: not provided Variant: c.1870C>T; p.Arg624a, c.1870C>T; p.Arg624a, c.1870C>T; p.Arg624a, c.1870C>T; p.Arg624a, c.3726C>A; p.Tyr1242a, c.3675C>G; p.Tyr1225a, c.3675C>G; p.Tyr1225a Family Information: 145 individuals with a DICER1 germline mutation and 135 controls from 48 families Case: family members used; both males and females used and no significant differences seen among sex; ages range from 20-40 with carriers being significantly younger than controls; no significant differences seen among ethnicity but participants located from the US, UK, and Great Britain CasePresentingHPOs: thyroid cancer or MNG diagnosis common to those with a DICER! mutation but with no chemotherapy or radiation treatment yet CasePreviousTesting: tested levels of thyroid-stimulating hormone, thyroxine, thyroxine-binding globulin, and serum albumin; thyroid palpation; thyroid ultrasound; Sanger or next-generation sequencing assays gnomAD: n/a Mutation Type: missense
- Variant: c.1870C>T; p.Arg624a, c.1870C>T; p.Arg624a, c.1870C>T; p.Arg624a, c.1870C>T; p.Arg624a, c.3726C>A; p.Tyr1242a, c.3675C>G; p.Tyr1225a, c.3675C>G; p.Tyr1225a
- Apr 2022
GeneName: DICER1 PMID: 28323992 PMCID: PMC5443331 *No HGNCID found Inheritance pattern: autosomal-dominant Disease Entity: multinodular goiter and thyroid cancer Mutation: Germline Zygosity: not listed Variant: c.3726C>A; p.Tyr1242a, c.3675C>G; p.Tyr1225a Family Information: 145 individuals with DICER1 germline mutations from 48 family controls (135 individuals) that lacked the DICER1 mutation Case: male and female carriers as well as family members were studied. Ages: 20, 30, and 40 for both populations (DICER1 carriers were significantly younger than controls}. Population from Great Britain, UK, and USA (no significant difference between race, ethnicity, or sex found). CasePresentingHPOs: no previous therapeutic radiation or chemotherapy. Thyroid cancer or MNG diagnoses were likely reported with the DICER1 mutation CasePreviousTesting: Sequencing performed with Sanger or next-generation sequencing assays. DICER1 carriers underwent testing to obtain thyroid-stimulating hormone, thyroxine, thyroxine-binding globulin, and serum albumin levels as well as medical history and physical examinations (+thyroid palpation). Participants were also given thyroid US examinations. gnomAD: n/a Mutation Type: missense
- FamilyInformation:145individualswithDICER1germlinemutationsfrom48familycontrols(135 individuals)thatlackedtheDICER1mutation
- DiseaseEntity: multinodular goiter and thyroid cance