Related Experiment Video
Updated: May 20, 2026

Genetic Profiling and Genome-Scale Dropout Screening to Identify Therapeutic Targets in Mouse Models of Malignant Peripheral Nerve Sheath Tumor
Published on: August 25, 2023
Soft tissue sarcoma and the hereditary non-polyposis colorectal cancer (HNPCC) syndrome: formulation of an hypothesis
E Urso1, M Agostini, S Pucciarelli
1Dipartimento di Scienze Chirurgiche, Oncologiche e Gastroenterologiche, Clinica Chirurgica II, University of Padova, Policlinico, VI piano, Via Giustiniani, 2, 35128 Padua, Italy. edl.urso@unipd.it
Abstract:
Hereditary non-polyposis colorectal cancer (HNPCC) is a genetic disorder caused by mutation in one of the mismatch repair (MMR) genes (MLH1, MSH2, MSH6, PMS2) which predisposes to colorectal cancer and other malignances, that not yet include sarcomas. For sustaining that soft tissue sarcomas could be HNPCC related malignances, we report on a HNPCC patient with leiomyosarcoma and review the English literature. Overall, we report on eleven cases of soft tissue malignant tumors involving HNPCC patients, with a mean age of 34 years at diagnosis of sarcomas. In the majority of these tumors loss of MSH2 expression can be found at immunohistochemistry (IHC) and in 10 patients a germline mutation in one of the MMR genes was found (7 cases were MSH2 defective and 3 cases MLH1 defective). Data for supporting our hypothesis are also experimental, epidemiologic, histopathological: excess of sarcomas in PMS2 defective mice; sporadic soft tissue sarcomas are rare, with mean age at onset of 56 years and normal IHC for MMR proteins. In conclusion, the data collected support the hypothesis that soft tissue sarcomas could be included in the spectrum of tumors that, even if rarely, depend on MMR genes deficiency.
More Related Videos
06:46Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
Published on: September 27, 2024
08:57Identifying, Diagnosing, and Grading Malignant Peripheral Nerve Sheath Tumors in Genetically Engineered Mouse Models
Published on: May 17, 2024
Related Concept Videos
Cancers Originate from Somatic Mutations in a Single Cell
Cancer-Critical Genes I: Proto-oncogenes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer-Critical Genes II: Tumor Suppressor Genes
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer Prevention
Some...
Pleiotropy