Abstract:
BACKGROUND:It has recently been suggested that overexpression of palladin in sporadic pancreatic cancer may contribute to pancreatic cancer's invasive and migratory abilities. This hypothesis was based on reverse transcriptase-polymerase chain reaction analyses of bulk pancreatic tissue, yet pancreatic cancer is a complex admixture of neoplastic epithelial cells and desmoplastic stroma. DESIGN:Immunohistochemical labeling of tissue microarrays was used to define the patterns of palladin protein expression in 177 ductal adenocarcinomas of the pancreas. Western blot analysis was used to determine the epitope(s) of palladin recognized by the antibody as well as the relative levels of palladin expression in short-term cultures of stromal fibroblasts, non-neoplastic ductal cells and pancreatic cancer cell lines. RESULTS:Immunolabeling revealed that the palladin protein was strongly overexpressed in non-neoplastic stromal cells in 171 (96.6%) of the 177 evaluable pancreatic cancers. By contrast, the overexpression of palladin protein by the neoplastic epithelial cells relative to normal pancreatic epithelium was observed in only 22 (12.4%) of the 177 cancers. Western blot analysis confirmed that the antibody recognizes the -90 kDa isoform of palladin, and demonstrated that fibroblast cell lines had higher expression of palladin than pancreatic cancer cell lines. CONCLUSIONS:The overexpression of palladin relative to normal pancreas in the majority of pancreatic cancers is limited to non-neoplastic stromal cells. This observation highlights the limitations of relying on bulk tissues when analyzing gene expression. Since palladin is not overexpressed in most pancreatic cancer cells, the overexpression of palladin is not likely to be responsible for pancreatic cancer cells invasive and migratory abilities.
journal_name
Cancer Biol Therjournal_title
Cancer biology & therapyauthors
Salaria SN,Illei P,Sharma R,Walter KM,Klein AP,Eshleman JR,Maitra A,Schulick R,Winter J,Ouellette MM,Goggins M,Hruban Rdoi
10.4161/cbt.6.3.3904subject
Has Abstractpub_date
2007-03-01 00:00:00pages
324-8issue
3eissn
1538-4047issn
1555-8576pii
3904journal_volume
6pub_type
杂志文章abstract::Phorbol 12-myristate 13-acetate (PMA) modulates cell proliferation and survival by activating several intracellular signaling pathways. Protein kinase C (PKC) plays a key role in PMA-induced growth arrest of non-small cell lung cancer (NSCLC) cells. Kruppel-like transcription factor 6 (KLF6), which is associated with ...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.8.9.8186
更新日期:2009-05-01 00:00:00
abstract::The aim of this study was to examine the cytotoxicity and mechanism of apoptosis induction of verotoxin-1 (VT-1) in human glioma cell lines. VT-1 is a member of the shiga-toxin family expressed by some serotypes of Escherichia coli and Shigella dysenteriae. Shiga-toxins have been shown to induce apoptosis by binding t...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.5.9.3173
更新日期:2006-09-01 00:00:00
abstract::We investigated the expression of annexin-1 (ANXA1) in thyroid carcinoma cell lines and in thyroid cancers with a different degree of differentiation. The highest level of ANXA1 expression examined by Western blotting was detected in the papillary carcinoma cells (NPA) and in the follicular cells (WRO). On the other h...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.5.6.2700
更新日期:2006-06-01 00:00:00
abstract::A number of discoveries have clarified the molecular mechanism of apoptosis, thus clarifying the link between apoptosis and therapeutic outcome. Even though apoptosis is thought to play a major role in anticancer therapy, the clinical relevance of induction of apoptosis remains uncertain, particularly in solid tumors....
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
abstract::Although most researchers in biology tend to focus on very specific issues and questions about their preferred gene or pathway, sometimes we face situations in which nature presents us with a remarkable example of a gene with multiple functions. Since the discovery of the early growth response 1 (EGR1) gene in the mid...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.8.20.9804
更新日期:2009-10-01 00:00:00
abstract:PURPOSE:genetic polymorphisms in DNA repair genes are thought to represent important determinants of platinum drug efficacy. The current study investigated whether single nucleotide polymorphisms (SNPs) in the X-ray repair cross complementing protein 1 (XRCC1) gene are associated with survival in non-small-cell lung ca...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.10.9.13238
更新日期:2010-11-01 00:00:00
abstract::Patients with serosal (pleural or peritoneal) spread of malignancy have few definitive treatment options and consequently have a very poor prognosis. We have previously shown that photodynamic therapy (PDT) can be an effective treatment for these patients, but that the therapeutic index is relatively narrow. Here, we ...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.22256
更新日期:2012-12-01 00:00:00
abstract::Multiple myeloma (MM) is an incurable B-cell malignancy characterized by accumulation of malignant plasma cells in the bone marrow and by recurrent or persistent infections. Toll-like receptors (TLRs) are essential in the host defense against infections. The aim of this study was to investigate TLR initiated responses...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.11.1.13878
更新日期:2011-01-01 00:00:00
abstract::Any drug selects for drug resistance. But super-antagonistic drug combinations can select for drug sensitivity. This has important application not only for antibacterial therapy but also for cancer therapy: to control cancer with lesser side effects and to eliminate drug-resistant cancer cells, while sparing sensitive...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.6.7.4340
更新日期:2007-07-01 00:00:00
abstract:BACKGROUND:The expression of indoleamine 2,3-dioxygenase (IDO) by tumor cells has been considered as a major tumor immune escape mechanism. The aim of this study was to investigate the expression of IDO in lung cancer cell lines as well as in surgically resected lung cancer specimens comparing the latter, to the expres...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.6.8.4446
更新日期:2007-08-01 00:00:00
abstract::Copy-number variants such as germ-line deletions and amplifications are associated with inherited genetic disorders including familial cancer. The gene or genes responsible for the majority of familial clustering of pancreatic cancer have not been identified. We used representational oligonucleotide microarray analysi...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.6.10.4725
更新日期:2007-10-01 00:00:00
abstract::Resistance to apoptosis is one reason for the poor response of malignant brain tumors to therapy. The PPARgamma-modulating drug Troglitazone downregulates the anti-apoptotic FLIP protein and sensitizes glioblastoma cells to apoptosis induced by the death ligand TRAIL. To investigate the molecular basis of an experimen...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.7.12.6966
更新日期:2008-12-01 00:00:00
abstract::The novel synthetic triterpenoid methyl-2-cyano-3, 12-dioxooleana-1, 9-dien-28-oate (CDDO-Me) induces apoptosis of cancer cells, enhances tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-induced apoptosis, and exhibits potent anticancer activity in animal models with a favorable pharmacokinetic profile....
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.6.10.4763
更新日期:2007-10-01 00:00:00
abstract::Microtubule-active drugs, including paclitaxel (Taxol, PTX), cause mitotic arrest, and this can result in apoptosis. A recently study has reported that PTX mediates apoptosis by upregulating FasL in Jurkat and MDA-231 cells. In contrast to the previous report, we found that anti-FasL antibodies failed to inhibit PTX-i...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.53
更新日期:2002-03-01 00:00:00
abstract:OBJECTIVE:EphA2 overexpression predicts poor prognosis in endometrial cancer. To explore mechanisms for this association and assess its potential as therapeutic target, the relationship of EphA2 expression to markers of angiogenesis was examined using patient samples and an orthotopic mouse model of uterine cancer. EX...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.10.12.13582
更新日期:2010-12-15 00:00:00
abstract::Poor oxygenation is a unique and prevalent feature of solid tumors associated with poor patient prognosis. In part, this is caused by a series of adaptive cellular responses that together have a large impact on gene expression and cell phenotype. HIF plays a key role in this response by activating a transcriptional pr...
journal_title:Cancer biology & therapy
pub_type: 杂志文章,评审
doi:10.4161/cbt.5.7.2972
更新日期:2006-07-01 00:00:00
abstract::The selectively oncolytic mtHSV, a HSV icp34.5 mutant with lacz gene insertion, was proved that it was targeted for treating tumors but not other organs, however, its oncolytic mechanism is under confirmation. The results showed that HeLa cells could be lysed efficiently by mtHSV in vitro. In the flow cytometry and We...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.6.2.3628
更新日期:2007-02-01 00:00:00
abstract::The phosphoinositide 3-kinase (PI3K)/Akt signaling pathway is important in nasopharyngeal carcinoma (NPC) pathogenesis. Activated PI3K and its downstream target Akt are concernful signaling molecules and key survival factors involved in the control of cell proliferation, apoptosis and oncogenesis. The protein kinase A...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.8.4.7433
更新日期:2009-02-01 00:00:00
abstract::Chronic myeloid leukemia (CML) progresses from a chronic phase to a deadly blast crisis phase. While it is known that BCR-ABL initiates the disease and that secondary molecular and genetic abnormalities likely contribute to progression of the disease to blast crisis, details regarding the mechanism(s) of blast phase p...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.10.10.14010
更新日期:2010-11-15 00:00:00
abstract::Epidemiological studies suggest that obesity increases the risk of developing several cancers, including melanoma. Obesity increases the expression of angiogenic factors, such as leptin, that may contribute to tumor growth. However, a direct cause and effect relationship between obesity and tumor growth has not been c...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.8.19.9650
更新日期:2009-10-01 00:00:00
abstract::As a kinase at the crossroads of numerous metabolic and cell growth signaling pathways, glycogen synthase kinase-3 beta (GSK-3β) is a highly desirable therapeutic target in cancer. Despite its involvement in pathways associated with the pathogenesis of several malignancies, no selective GSK-3β inhibitor has been appro...
journal_title:Cancer biology & therapy
pub_type: 杂志文章,评审
doi:10.1080/15384047.2019.1595283
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVES:Due to the absence of reliable and accurate biomarkers for the early detection of liver malignancy, circulating microRNAs have recently emerged as great candidates for prompt cancer identification. Therefore, the aim of this study was to investigate the potential of liver-specific circulating microRNAs as an...
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
abstract::This study aimed to investigate the inhibitory effect of tyroservaltide (YSV) on the human hepatocarcinoma BEL-7402 transplanted into nude mice and to explore its possible anti-tumor mechanism. Nude mice bearing xenografts of the human BEL-7402 hepatoma were given daily i.p. injections of YSV or saline (as a control) ...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.4.9.1968
更新日期:2005-09-01 00:00:00
abstract::Clear cell RCC is the most common, and more likely to metastasize, of the three main histological types of RCC. Pathologic stage is the most important prognostic indicator and nuclear grade can predict outcome within stages of localized RCC. Epithelial tumors are thought to accumulate a series of genetic and epigeneti...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.27314
更新日期:2014-03-01 00:00:00
abstract::Triple-negative breast cancer (TNBC) represents a collection of malignant breast tumors that are often aggressive and have an increased risk of metastasis and relapse. Long non-coding RNAs are generally defined as RNA transcripts measuring 200 nucleotides or longer that do not encode for any protein. During the past d...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.1080/15384047.2015.1040957
更新日期:2015-01-01 00:00:00
abstract::Polo-like kinase 1 (Plk1) is a key cell cycle regulator that is frequently overexpressed in human hepatocellular carcinomas. Blockade of the Plk1 pathway has been reported to be capable of inducing anti-tumor effect. Here, plasmids containing U6 promoter-driven shRNAs against human Plk1 were constructed and transfecte...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.11.4.14178
更新日期:2011-02-15 00:00:00
abstract::Understanding the biology of breast cancer stem cells and trying new ways to obliterate these cells would be a key step in developing cures for breast cancer. The objective of this study was to investigate the effect of mutant TNFalpha on human breast cancer stem cells derived from MCF7 cell line under the characteriz...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:10.4161/cbt.6.9.4885
更新日期:2007-09-01 00:00:00
abstract::Discovering drugs has never been an easy task. Traditionally, this task has exclusively been undertaken by large pharmaceutical companies that recovered their high research and development costs by selling expensive medications. Despite the huge amount of time and effort devoted towards drug discovery over the last de...
journal_title:Cancer biology & therapy
pub_type: 杂志文章,评审
doi:10.4161/cbt.2.4.448
更新日期:2003-07-01 00:00:00
abstract::Beneficial bacteria (probiotics) and probiotic-derived factors have the potential to ameliorate disorders of the intestine. The aim of this study was to compare live Streptococcus thermophilus TH-4 (TH-4), dead TH-4 and TH-4 supernatant in rats treated with 5-Fluorouracil. Rats were randomly allocated to five treatmen...
journal_title:Cancer biology & therapy
pub_type: 杂志文章
doi:
更新日期:2009-03-15 00:00:00
abstract::The molecular regulation of growth and progression of hormone refractory breast and prostate cancers remains challenging. The Division of Cancer Biology, NCI organized a small "think tank" style workshop and invited scientists in relevant areas to assess the state of science on the biology of hormone refractory tumors...
journal_title:Cancer biology & therapy
pub_type:
doi:10.4161/cbt.8.21.9918
更新日期:2009-11-01 00:00:00