PMID- 22562364 OWN - NLM STAT- MEDLINE DCOM- 20120904 LR - 20161125 IS - 1791-2431 (Electronic) IS - 1021-335X (Linking) VI - 28 IP - 1 DP - 2012 Jul TI - Expression and correlation of Bcl-2 with pathological grades in human glioma stem cells. PG - 155-60 LID - 10.3892/or.2012.1800 [doi] AB - The anti-apoptotic gene, B-cell lymphoma-2 (Bcl-2), has been reported to be overexpressed in gliomas and is related to tumor prognosis, suggesting a potential therapeutic target. Additionally, recent studies have demonstrated the existence of brain glioma stem cells (BGSCs) which are tumorigenic, self-renewable and dominate the biological behavior of gliomas. Currently BGSCs are committed as a new target of glioma therapies. However, few studies have focused on the expression of Bcl-2 in BGSCs. We performed a series of experiments to culture BGSCs from eight clinical specimens, followed by real-time RT-PCR and immunoassays to compare the expression levels of Bcl-2 in BGSCs and their corresponding primary glioma cells (PGCs). The results showed that Bcl-2 mRNA and protein expression levels are higher in BGSCs compared to their counterparts, and the expression levels are related to glioma malignancies. As an anti-apoptotic gene, Bcl-2 assigns immortality characteristics to cells, which coincide with the pivotal biological feature of BGSCs. The experimental results indicated that BGSCs would evade apoptosis for higher Bcl-2 expression, and may interpret the drug resistance of glioma to cytotoxic drugs and other pro-apoptotic agents. New therapies targeting Bcl-2 must induce apoptosis in BGSCs, thus, resulting in treatment or even eradication of glioma. FAU - Qiu, Bo AU - Qiu B AD - Department of Neurosurgery, First Hospital of China Medical University, Heping District, Shenyang, Liaoning 110001, PR China. FAU - Wang, Yong AU - Wang Y FAU - Tao, Jun AU - Tao J FAU - Wang, Yunjie AU - Wang Y LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120504 PL - Greece TA - Oncol Rep JT - Oncology reports JID - 9422756 RN - 0 (AC133 Antigen) RN - 0 (Antigens, CD) RN - 0 (Glycoproteins) RN - 0 (Peptides) RN - 0 (Proto-Oncogene Proteins c-bcl-2) SB - IM MH - AC133 Antigen MH - Antigens, CD/metabolism MH - Brain Neoplasms/metabolism/*pathology MH - Cell Proliferation MH - Glioma/metabolism/*pathology MH - Glycoproteins/metabolism MH - Humans MH - Neoplastic Stem Cells/*metabolism MH - Peptides/metabolism MH - Proto-Oncogene Proteins c-bcl-2/genetics/*metabolism MH - Real-Time Polymerase Chain Reaction MH - Spheroids, Cellular/metabolism MH - Transcription, Genetic MH - Tumor Cells, Cultured EDAT- 2012/05/09 06:00 MHDA- 2012/09/05 06:00 CRDT- 2012/05/08 06:00 PHST- 2012/02/24 00:00 [received] PHST- 2012/04/12 00:00 [accepted] PHST- 2012/05/08 06:00 [entrez] PHST- 2012/05/09 06:00 [pubmed] PHST- 2012/09/05 06:00 [medline] AID - 10.3892/or.2012.1800 [doi] PST - ppublish SO - Oncol Rep. 2012 Jul;28(1):155-60. doi: 10.3892/or.2012.1800. Epub 2012 May 4.