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Evaluation of p16 and Id1 status and endogenous reference genes in human chondrosarcoma by real-time PCR.

Artikel i vetenskaplig tidskrift
Författare Julia Asp
Camilla Brantsing
Karina Lövstedt
Maria Serena Benassi
Sven Inerot
Gabriella Gamberi
Piero Picci
Anders Lindahl
Publicerad i International journal of oncology
Volym 27
Nummer/häfte 6
Sidor 1577-82
ISSN 1019-6439
Publiceringsår 2005
Publicerad vid Institutionen för de kirurgiska disciplinerna, Avdelningen för ortopedi
Institutionen för laboratoriemedicin, Avdelningen för klinisk kemi/transfusionsmedicin
Sidor 1577-82
Språk en
Länkar www.ncbi.nlm.nih.gov/entrez/query.f...
Ämnesord Bone Neoplasms, genetics, pathology, Chondrocytes, metabolism, Chondrosarcoma, genetics, pathology, Cyclin-Dependent Kinase Inhibitor p16, genetics, Gene Expression Profiling, Gene Expression Regulation, Neoplastic, Humans, Inhibitor of Differentiation Protein 1, genetics, Prognosis, RNA, Messenger, genetics, metabolism, RNA, Ribosomal, 18S, genetics, Reverse Transcriptase Polymerase Chain Reaction, methods
Ämneskategorier Ortopedi

Sammanfattning

Both the tumour suppressor, p16, and the helix-loop-helix transcription factor, Id1, have been assigned roles in tumour growth in general and appear to be involved in chondrosarcoma. Id1 has further been found to repress the expression of p16. Therefore, the mRNA expression of these two genes was studied by real-time PCR in a search for prognostic markers in human chondrosarcoma. To get reliable quantitative data, however, the choice of endogenous reference gene for use in the assay is important. Therefore, eleven different endogenous reference genes were evaluated in chondrosarcoma cells and articular chondrocytes. 18S rRNA appeared to be the best choice to use as endogenous reference gene, since it was suitable for both kinds of cells. Several of the other reference genes tested showed variation between individuals or between normal chondrocytes and chondrosarcoma cells. This demonstrates the importance of using a correct endogenous reference gene to get reliable results from quantitative measurements. Both p16 and Id1 showed varied gene expression patterns among the samples and none of these genes could be significantly correlated to prognosis.

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