Publications by authors named "D Mandelker"

Germline BRCA2 loss-of function variants, which can be identified through clinical genetic testing, predispose to several cancers. However, variants of uncertain significance limit the clinical utility of test results. Thus, there is a need for functional characterization and clinical classification of all BRCA2 variants to facilitate the clinical management of individuals with these variants.

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Nearly all pancreatic adenocarcinomas (PDAC) are genomically characterized by KRAS exon 2 mutations. Most patients with PDAC present with advanced disease and are treated with cytotoxic therapy. Genomic biomarkers prognostic of disease outcomes have been challenging to identify.

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Purpose: It is well known that individuals with hereditary retinoblastoma are at lifelong high risk for developing subsequent malignant neoplasms (SMN). However, the role that non- germline variants play in tumorigenesis and SMN risk has not yet been studied. The purpose of this study is to report the frequency and spectrum of non- germline cancer predisposing variants in individuals with retinoblastoma (RB).

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Purpose: Deleterious germline variants in certain DNA repair genes are risk factors for developing aggressive prostate cancer. The objective was to quantify their prognostic impact after prostate cancer diagnosis.

Experimental Design: Men with prostate cancer, predominantly of European ancestry, were included from four cohorts with long-term follow-up.

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Article Synopsis
  • The discovery of "mismatch repair proficient (MMRp)-crypt foci" in a patient with constitutional MMR deficiency presents new insights into tumor development in Lynch syndrome (LS).
  • The study found MMRp crypts in both non-cancerous and cancerous intestinal tissues, highlighting the unique genetic behavior of MSH6 in tumor formation.
  • These findings emphasize the need for careful diagnostic practices when using MMR immunohistochemistry, as the presence of MMRp crypts could lead to misdiagnosis in individuals with CMMRD.
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