Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Pivot Concepts:
Gene/Protein
Disease
Symptom
Drug
Enzyme
Compound
Target Concepts:
Gene/Protein
Disease
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Query: UMLS:C0017638 (
glioma
)
30,880
document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)
The reported clinical manifestations of Turcot syndrome were studied to determine whether these corresponded to those of Turcot's original cases. Among the patients with well-documented colonic lesions, the colonic lesions were classified into three groups. First, there was a main group in which colonic lesions had the following characteristics that coincided with those of Turcot's original cases: a low number of polyps (20-100), large polyps over 3 cm in diameter, and complication by colonic cancer during the second or third decades. In the second group, the patients had too few polyps to be diagnosed as polyposis. The third group included patients with numerous colonic polyps similar to those of familial polyposis coli. The recognition of these characteristics of colonic lesions may lead to early detection of
glioma
in the asymptomatic period.
Dis
Colon
Rectum 1985 Jun
PMID:Turcot syndrome and its characteristic colonic manifestations. 400 35
Typical Turcot's syndrome is characterized by the association of a brain
glioma
together with multiple colonic polyposis, in which the number of polypoid lesions is small and the association of colonic cancer occurs at a younger age than in familial adenomatous polyposis. We describe a family in which both the father and his son presented with typical Turcot's syndrome without parental consanguinity. This is the first report of a family that is considered to follow an autosomal dominant inheritance. After reviewing 25 documented cases in which the average age of death was 20.3 years old, it was learned that the major cause of death was brain tumor (76 percent) and the minor cause was colon cancer (16 percent). Patients were very young and, therefore, unlikely to have produced a child before their death. These facts seem to support the theory that Turcot's syndrome is an autosomal dominant disorder.
Dis
Colon
Rectum 1998 Jun
PMID:A father and son with Turcot's syndrome: evidence for autosomal dominant inheritance: report of two cases. 1021 61
Hedgehog is an evolutionarily conserved developmental pathway, widely implicated in controlling various cellular responses such as cellular proliferation and stem cell renewal in human and other organisms, through external stimuli. Aberrant activation of this pathway in human adult stem cell line may cause different types of cancers. Hence, targeting this pathway in cancer therapy has become indispensable, but the non availability of detailed molecular interactions, complex regulations by extra- and intra-cellular proteins and cross talks with other pathways pose a serious challenge to get a coherent understanding of this signaling pathway for making therapeutic strategy. This motivated us to perform a computational study of the pathway and to identify probable drug targets. In this work, from available databases and literature, we reconstructed a complete hedgehog pathway which reports the largest number of molecules and interactions to date. Using recently developed computational techniques, we further performed structural and logical analysis of this pathway. In structural analysis, the connectivity and centrality parameters were calculated to identify the important proteins from the network. To capture the regulations of the molecules, we developed a master Boolean model of all the interactions between the proteins and created different cancer scenarios, such as
Glioma
,
Colon
and Pancreatic. We performed perturbation analysis on these cancer conditions to identify the important and minimal combinations of proteins that can be used as drug targets. From our study we observed the under expressions of various oncoproteins in Hedgehog pathway while perturbing at a time the combinations of the proteins GLI1, GLI2 and SMO in
Glioma
; SMO, HFU, ULK3 and RAS in Colon cancer; SMO, HFU, ULK3, RAS and ERK12 in Pancreatic cancer. This reconstructed Hedgehog signaling pathway and the computational analysis for identifying new combinatory drug targets will be useful for future in-vitro and in-vivo analysis to control different cancers.
...
PMID:Structural and logical analysis of a comprehensive hedgehog signaling pathway to identify alternative drug targets for glioma, colon and pancreatic cancer. 2393 37