Abstract:
:Bruton's tyrosine kinase (BTK) is a non-receptor tyrosine kinase that has mainly been studied in haematopoietic cells. We have investigated whether BTK is a potential therapeutic target in prostate cancer. We find that BTK is expressed in prostate cells, with the alternate BTK-C isoform predominantly expressed in prostate cancer cells and tumors. This isoform is transcribed from an alternative promoter and results in a protein with an amino-terminal extension. Prostate cancer cell lines and prostate tumors express more BTK-C transcript than the malignant NAMALWA B-cell line or human lymphomas. BTK protein expression is also observed in tumor tissue from prostate cancer patients. Down regulation of this protein with RNAi or inhibition with BTK-specific inhibitors, Ibrutinib, AVL-292 or CGI-1746 decrease cell survival and induce apoptosis in prostate cancer cells. Microarray results show that inhibiting BTK under these conditions increases expression of apoptosis related genes, while overexpression of BTK-C is associated with elevated expression of genes with functions related to cell adhesion, cytoskeletal structure and the extracellular matrix. These results are consistent with studies that show that BTK signaling is important for adhesion and migration of B cells and suggest that BTK-C may confer similar properties to prostate cancer cells. Since BTK-C is a survival factor for these cells, it represents both a potential biomarker and novel therapeutic target for prostate cancer.
journal_name
Cancer Biol Therjournal_title
Cancer biology & therapyauthors
Kokabee L,Wang X,Sevinsky CJ,Wang WL,Cheu L,Chittur SV,Karimipoor M,Tenniswood M,Conklin DSdoi
10.1080/15384047.2015.1078023subject
Has Abstractpub_date
2015-01-01 00:00:00pages
1604-15issue
11eissn
1538-4047issn
1555-8576journal_volume
16pub_type
杂志文章abstract::The hypoxia-inducible factor 1alpha (HIF-1alpha) plays a major role in cancer progression. The role of this transcription factor in prostate cancer development and its transition to a metastatic and androgen refractory state remains to be elucidated. Previous reports have identified the existence of single nucleotide ...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.4.11.2091
更新日期:2005-11-01 00:00:00
abstract::The serine/threonine protein kinase Aurora A is known to interact with and phosphorylate tumor suppressor p53 at Serine 215 (S215), inhibiting the transcriptional activity of p53. We show that Aurora A positively regulates human p53 protein levels and, using isogenic p53 wild-type and p53-null colorectal carcinoma cel...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.12.12.18141
更新日期:2011-12-15 00:00:00
abstract:BACKGROUND:Primary brain tumors have always been associated with high morbidity and mortality. Glioma is the most common type of malignant brain tumors,with a high probability of recurrence after surgical excision and with poor prognosis.The purpose of this study was to compare the therapeutic efficacy of computed tomo...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.20834
更新日期:2012-08-01 00:00:00
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journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.5.7.2971
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abstract::Hypermethylation at certain CpG-rich promoters and hypomethylation at repeated DNA sequences are very frequently found in cancers. We provide the first report that a DNA sequence (NBL2) can be either extensively hypermethylated or hypomethylated in cancer. Previously, it was shown that NBL2, a complex tandem DNA repea...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
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更新日期:2005-04-01 00:00:00
abstract::Hypoxia is known to play important role in cancer biology. In sarcomas, hypoxia-induced protein biomarkers such as Hypoxia Inducible Factor-1a (HIF-1a), vascular endothelial growth factor (VEGF), and Erythropoietin (Epo) have been previously reported in only a few studies. Moreover, the biologic significance and rel...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
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更新日期:2010-02-01 00:00:00
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journal_title:Cancer biology & therapy
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doi:10.1080/15384047.2018.1537575
更新日期:2019-01-01 00:00:00
abstract::Angiogenesis plays an essential role in tumor growth and metastasis and is a promising target for cancer therapy. We characterized the effects of selective CIAPIN1 inhibition on the angiogenesis gastric cancer cell line SGC7901 by stable transfection of CIAPIN1 siRNA. Our study has been shown that CIAPIN1 play the det...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.8.11.8795
更新日期:2009-06-01 00:00:00
abstract::Current knowledge of changes in the mammary epithelium relevant to breast carcinogenesis is limited to when histological changes are already present because of a lack of biomarkers needed to identify where such molecular changes might be ongoing at earlier during the of decades-long latent stages of breast carcinogene...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.13.2.18873
更新日期:2012-01-15 00:00:00
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journal_title:Cancer biology & therapy
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更新日期:2017-05-04 00:00:00
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journal_title:Cancer biology & therapy
pub_type: 杂志文章,评审
doi:10.4161/cbt.5.11.3456
更新日期:2006-11-01 00:00:00
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journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.8.22.10446
更新日期:2009-11-01 00:00:00
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journal_title:Cancer biology & therapy
pub_type: 杂志文章,评审
doi:10.4161/cbt.2.5.445
更新日期:2003-09-01 00:00:00
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journal_title:Cancer biology & therapy
pub_type: 杂志文章
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更新日期:2010-11-01 00:00:00
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journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.29112
更新日期:2014-08-01 00:00:00
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journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.2.5.532
更新日期:2003-09-01 00:00:00
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journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.1080/15384047.2018.1423922
更新日期:2018-05-04 00:00:00
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doi:10.1080/15384047.2019.1647051
更新日期:2019-01-01 00:00:00
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journal_title:Cancer biology & therapy
pub_type: 杂志文章
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更新日期:2014-01-01 00:00:00
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journal_title:Cancer biology & therapy
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更新日期:2007-07-01 00:00:00
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journal_title:Cancer biology & therapy
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更新日期:2018-06-03 00:00:00
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journal_title:Cancer biology & therapy
pub_type: 杂志文章
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更新日期:2013-06-01 00:00:00
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更新日期:2002-01-01 00:00:00
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更新日期:2002-11-01 00:00:00
abstract::Despite its low transfer efficiency, suicide gene therapy with HSV-TK is known for its bystander killing effect. The connexin-based gap junction is believed to mediate the bystander effect. Recently, we found that resveratrol, a polyphenol compound, increased the expression of Cx26 and Cx43, which are connexins and im...
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pub_type: 评论,杂志文章
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