Abstract:
BACKGROUND:We studied the role of caspase-2 in apoptosis induction by taxanes (paclitaxel, novel taxane SB-T-1216) in breast cancer cells using SK-BR-3 (nonfunctional p53, functional caspase-3) and MCF-7 (functional p53, nonfunctional caspase-3) cell lines. RESULTS:Both taxanes induced apoptosis in SK-BR-3 as well as MCF-7 cells. Caspase-2 activity in SK-BR-3 cells increased approximately 15-fold within 48 h after the application of both taxanes at the death-inducing concentration (100 nM). In MCF-7 cells, caspase-2 activity increased approximately 11-fold within 60 h after the application of taxanes (300 nM). Caspase-2 activation was confirmed by decreasing levels of procaspase-2, increasing levels of cleaved caspase-2 and the cleavage of caspase-2 substrate golgin-160. The inhibition of caspase-2 expression using siRNA increased the number of surviving cells more than 2-fold in MCF-7 cells, and at least 4-fold in SK-BR-3 cells, 96 h after the application of death-inducing concentration of taxanes. The inhibition of caspase-2 expression also resulted in decreased cleavage of initiator caspases (caspase-8, caspase-9) as well as executioner caspases (caspase-3, caspase-7) in both cell lines after the application of taxanes. In control cells, caspase-2 seemed to be mainly localized in the nucleus. After the application of taxanes, it was released from the nucleus to the cytosol, due to the long-term disintegration of the nuclear envelope, in both cell lines. Taxane application led to some formation of PIDDosome complex in both cell lines within 24 h after the application. After taxane application, p21WAF1/CIP1 expression was only induced in MCF-7 cells with functional p53. However, taxane application did not result in a significant increase of PIDD expression in either SK-BR-3 or MCF-7 cells. The inhibition of RAIDD expression using siRNA did not affect the number of surviving SK-BR-3 and MCF-7 cells after taxane application at all. CONCLUSION:Caspase-2 is required, at least partially, for apoptosis induction by taxanes in tested breast cancer cells. We suggest that caspase-2 plays the role of an apical caspase in these cells. Caspase-2 seems to be activated via other mechanism than PIDDosome formation. It follows the release of caspase-2 from the nucleus to the cytosol.
journal_name
Cancer Cell Intjournal_title
Cancer cell internationalauthors
Jelínek M,Balušíková K,Kopperová D,Nĕmcová-Fürstová V,Šrámek J,Fidlerová J,Zanardi I,Ojima I,Kovář Jdoi
10.1186/1475-2867-13-42subject
Has Abstractpub_date
2013-05-15 00:00:00pages
42issue
1issn
1475-2867pii
1475-2867-13-42journal_volume
13pub_type
杂志文章abstract:Background:Growing evidence suggests that MiRNAs play essential roles in the initiation and progression of colorectal cancer (CRC). The aberrant expression of miR-384 has been reported in some cancers. However, the role and mechanism of miR-384 in CRC proliferation remains unknown. Methods:The expression of miR-384 wa...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-018-0628-6
更新日期:2018-09-03 00:00:00
abstract:Background:Estrogen sulfotransferase catalyzes conjugation of sulfuryl-group to estradiol/estrone and regulates E2 availability/activity via estrogen-receptor or non-receptor mediated pathways. Sulfoconjugated estrogen fails to bind estrogen-receptor (ER). High estrogen is a known carcinogen in postmenopausal women. Re...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-1153-y
更新日期:2020-03-04 00:00:00
abstract::Circular RNAs (circRNAs) are small non-coding RNAs with a unique ring structure and play important roles as gene regulators. Disturbed expressions of circRNAs is closely related to varieties of pathological processes. The roles of circRNAs in cancers have gained increasing concerns. The communications between the canc...
journal_title:Cancer cell international
pub_type: 杂志文章,评审
doi:10.1186/s12935-020-01301-z
更新日期:2020-06-03 00:00:00
abstract:Background:Programmed cell death 1 (PD-1) functions as an immune checkpoint in the process of anti-tumor immune response. The PD-1 blockade is now becoming a fundamental part in cancer immunotherapy. So it's essential to elicit the PD-1 related immune process in different types of cancer. Methods:The Cancer Genome Atl...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-018-0712-y
更新日期:2018-12-27 00:00:00
abstract::[This corrects the article DOI: 10.1186/s12935-019-0742-0.]. ...
journal_title:Cancer cell international
pub_type: 杂志文章,已发布勘误
doi:10.1186/s12935-019-0797-y
更新日期:2019-04-11 00:00:00
abstract:BACKGROUND:Gastric carcinoma (GC) is currently one of the most common malignant tumors of the digestive system, and gastric precancerous lesions play a vital role in studying the mechanism of GC. Multiple microRNAs (miRNAs) have been documented to be potential biomarkers to indicate progression of gastric precancerous ...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01578-0
更新日期:2020-11-13 00:00:00
abstract:Background:Inflammation is one of a main reason for colon cancer progression and poor prognosis. The high-mobility group box-1 (HMGB1) and glutathione peroxidase 4 (GPX4) are responsible for inflammation, but the relationship between HMGB1 and GPX4 remains unknown about inflammation in colon cancer. Methods:RT-qPCR wa...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01289-6
更新日期:2020-05-29 00:00:00
abstract:BACKGROUND:The voltage gated potassium (K+) channels Eag and HERG have been implicated in the pathogenesis of various cancers, through association with cell cycle changes and programmed cell death. The role of these channels in the onset and progression of ovarian cancer is unknown. An understanding of mechanism by whi...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-11-6
更新日期:2011-03-10 00:00:00
abstract:BACKGROUND:Pancreatic cancer is currently one of the leading causes of cancer deaths without any effective therapies. Mir-145 has been found to be tumor-suppressive in various types of cancers. The aim of this study is to investigate the role of miR-145 in pancreatic cancer cells and explore its underlying mechanism. ...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-016-0331-4
更新日期:2016-08-25 00:00:00
abstract:BACKGROUND:Prostate cancer progression to androgen independence is the primary cause of mortality by this tumor type. The IGF-1/IGF-1R axis is well known to contribute to prostate cancer initiation, but its contribution to invasiveness and the downstream signalling mechanisms that are involved are unclear at present. ...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-8-10
更新日期:2008-07-03 00:00:00
abstract:BACKGROUND:We previously observed that the TGFbeta-Par6 pathway mediates loss of polarity and apoptosis in NMuMG cells. Here we investigate the contribution of Par6 versus TGFbeta receptor I activation to TGFbeta-induced apoptosis in association with changes in apico-basal polarity. We focus on the effect of Par6 activ...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-14-19
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND:This last decade, a lot of emphasis has been placed on developing new cancer cell culture models, closer to in vivo condition, in order to test new drugs and therapies. In the case of colorectal cancer, the use of patient biopsies to seed 3D primary cultures and mimic tumor initiation necessitates the use of...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-016-0277-6
更新日期:2016-02-12 00:00:00
abstract:Background:Acute myeloid leukemia (AML) is a clinically and biologically heterogeneous disease. The survival of older patients is generally poor. In the current study, we sought to investigate the differences in molecular gene mutations between younger and older AML patients, and to identify those newly diagnosed AML p...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-018-0716-7
更新日期:2018-12-22 00:00:00
abstract:BACKGROUND:Mutational inactivation of the von Hippel-Lindau (VHL) tumor suppressor gene has been linked to hereditary as well as sporadic clear cell renal carcinomas. The product of the VHL gene, pVHL, acts to target hypoxia-inducible factor alpha (HIF-alpha) subunits for ubiquitination and subsequent degradation. Usin...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-7-13
更新日期:2007-06-28 00:00:00
abstract:Background:MicroRNAs (miRNAs) play key roles in tumorigenesis and progression of gastric cancer (GC). miR-1269 has been reported to be upregulated in several cancers and plays a crucial role in carcinogenesis and cancer progression. However, the biological function of miR-1269 in human GC and its mechanism remain uncle...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-1026-4
更新日期:2019-11-21 00:00:00
abstract:Background:At the present time, colorectal cancer (CRC) is still known as a disease with a high mortality rate. Theranostics are flawless scenarios that link diagnosis with therapy, including precision medicine as a critical platform that relies on the development of biomarkers particularly "liquid biopsy". Circulating...
journal_title:Cancer cell international
pub_type: 杂志文章,评审
doi:10.1186/s12935-020-01389-3
更新日期:2020-07-06 00:00:00
abstract:: Autoimmune phenomena were identified in many different cases of hematological diseases and solid tumors, which may be due to alterations in the expression and function of the NF-κB signaling pathway. Recently, a number of studies have shown that the deletion or mutation of A20, a negative regulator of NF-κB, is frequ...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-12-44
更新日期:2012-11-07 00:00:00
abstract:Background:miR-429 and TLN1 have been shown to affect the biological behaviours of many carcinomas. However, their effects in nasopharyngeal carcinoma (NPC) are not yet clear. Here, we investigated their regulatory relationships and effects on NPC cells. Methods:TargetScan was used to predict the regulatory relationsh...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-0831-0
更新日期:2019-04-30 00:00:00
abstract::[This retracts the article DOI: 10.1186/s12935-015-0237-6.]. ...
journal_title:Cancer cell international
pub_type: 撤回出版物
doi:10.1186/s12935-016-0359-5
更新日期:2016-11-04 00:00:00
abstract:BACKGROUND:Long non-coding RNAs (lncRNAs) are increasingly implicated in the regulation of the progression of malignancy. AIM:To clarify the relations among BCYRN1 (brain cytoplasmic RNA 1, a long non-coding RNA), c-MYC and cell metastasis of non-small-cell lung cancer (NSCLC). METHODS:Real-time PCR was used to measu...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-015-0183-3
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:The present study mainly aimed to investigate the direct effects of Endostar (ES) on the proliferation and radiosensitivity of human lung squamous cancer cell line H-520. RESULTS:ES significantly inhibited H-520 cell proliferation in a time- and dose-dependent manner. According to the colony-forming assays,...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-10-17
更新日期:2010-05-24 00:00:00
abstract::Cancer is a major public health problem as one of the leading causes of death worldwide. Deciphering the molecular regulation mechanisms of tumor progression can make way for tumor diagnosis and therapy. Paternally expressed gene 10 (PEG10), located on human chromosome 7q21.3, has turned out to be an oncogene implicat...
journal_title:Cancer cell international
pub_type: 杂志文章,评审
doi:10.1186/s12935-018-0610-3
更新日期:2018-08-13 00:00:00
abstract:Background:Gastric cancer (GC) is a common cause of cancer-related mortality worldwide, and microRNAs (miRNAs) have been shown to play an important role in GC development. This study aims to explore the effect of microRNA-93-5p (miR-93-5p) on the epithelial-mesenchymal transition (EMT) in GC, via AHNAK and the Wnt sign...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-1092-7
更新日期:2020-03-12 00:00:00
abstract:BACKGROUND:BRAF inhibitors are effective anticancer agents in BRAF-mutated melanomas. By contrast, evidences about sensitivity of thyroid carcinomas to BRAF inhibition are conflicting and it has been proposed that BRAF V600E thyroid carcinoma cells are less sensitive to BRAF inhibitors due to activation of parallel sig...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-017-0457-z
更新日期:2017-10-04 00:00:00
abstract:Background:Tumor necrosis factor-a-induced protein 8 (TNFAIP8) presented a elevated expression in endometrial cancer (EC). However, the relationship of TNFAIP8 gene polymorphisms with EC risk remains unclear. This case-control study aimed to investigate the effect of single nucleotide polymorphisms (SNPs) in TNFAIP8 on...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-0827-9
更新日期:2019-04-23 00:00:00
abstract:Background:Cutaneous melanoma is one of the most aggressive and lethal skin cancers. It is greatly important to identify prognostic biomarkers to guide the clinical management. However, it is technically challenging for untrained researchers to process high dimensional profiling data and identify potential prognostic g...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-020-01262-3
更新日期:2020-05-19 00:00:00
abstract::N6-methyl-adenosine(m6A) modification emerges as an abundant and dynamic regulation throughout the Eukaryotic transcriptome. Dysregulation of the m6A regulators has increasingly been found in many neoplasms. It is reasonable to believe that m6A changes the fate of cancer cells and subsequently affected all aspects of ...
journal_title:Cancer cell international
pub_type: 杂志文章,评审
doi:10.1186/s12935-020-01445-y
更新日期:2020-07-29 00:00:00
abstract:BACKGROUND:The digallic acid (DGA) purified from Pistacia lentiscus. L fruits was investigated for its antiproliferative and apoptotic activities on human lymphoblastoid TK6 cells. METHODS:We attempt to characterize the apoptotic pathway activated by DGA. Apoptosis was detected by DNA fragmentation, PARP cleavage and ...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-12-26
更新日期:2012-06-11 00:00:00
abstract:Background:Hepatocellular carcinoma (HCC) is one of the most common malignancies with a high morbidity and mortality worldwide. MicroRNAs are key regulators of HCC genesis. However, the regulatory role and underlying mechanisms of microRNA in HCC is still limited. Methods:Cyclin B1 (CCNB1) mRNA levels were examined in...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/s12935-019-0729-x
更新日期:2019-01-14 00:00:00
abstract:BACKGROUND:The expression of major histocompatibility complex class II (MHCII) antigens in both mouse and human tumors is rare, and these antigens are not easily inducible by IFN-gamma (IFNg). Since MHCII may play an important role in the development of host antitumor immune response, we explored the possibility of res...
journal_title:Cancer cell international
pub_type: 杂志文章
doi:10.1186/1475-2867-3-4
更新日期:2003-03-25 00:00:00