Abstract:
BACKGROUND:Abnormal amplification/expression of HER-2/neu oncogene has been causally linked with tumorigenesis and metastasis in breast cancer and associated with shortened overall survival of patients. Recently, heat shock protein 27 (Hsp27) was reported to be highly expressed in HER-2/neu positive tumors and cell lines. However, putative functional links between phosphorylation of Hsp27 with HER-2/neu status and other clinicopathological features remain to be elucidated. RESULTS:Comparative phosphoproteomic studies of HER-2/neu positive and -negative breast tumors revealed that Hsp27, one of the identified phosphoproteins, was highly phosphorylated in HER-2/neu positive tumors. The extent of Hsp27 phosphorylation at its Ser15, Ser78 and Ser82 residues were further evaluated with site-specific antibodies in tumor samples by tissue lysate array- and tissue microarray-based analyses, and in the BT474 breast cancer cell line treated with heregulin alpha1 (HRG alpha1) or the p38 MAPK inhibitor, SB203580. The tissue lysate array study indicated that only the level of pSer78 in HER-2/neu positive tumors was more than 2-fold that in HER-2/neu negative tumors. Treatment of BT474 cells with HRG alpha1 and SB203580 indicated that Ser78 phosphorylation was mainly regulated by the HER-2/neu-p38 MAPK pathway. Immunohistochemical staining of sections from a tissue microarray with 97 breast tumors showed that positive staining of pSer78 significantly correlated with HER-2/neu (p = 0.004) and lymph node positivity (p = 0.026). CONCLUSION:This investigation demonstrated the significant correlation of enhanced phosphorylation of the Ser78 residue of Hsp27 with HER-2/neu and lymph node positivity in breast cancer.
journal_name
Mol Cancerjournal_title
Molecular cancerauthors
Zhang D,Wong LL,Koay ESdoi
10.1186/1476-4598-6-52subject
Has Abstractpub_date
2007-08-14 00:00:00pages
52issn
1476-4598pii
1476-4598-6-52journal_volume
6pub_type
杂志文章相关文献
Molecular Cancer文献大全abstract:BACKGROUND:Although the prognosis of gastric cancer patients have a favorable progression, there are some patients with unusual patterns of locoregional and systemic recurrence. Therefore, a better understanding of early molecular events of the disease is needed. Current evidences demonstrate that long noncoding RNAs (...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/s12943-017-0588-9
更新日期:2017-02-16 00:00:00
abstract:BACKGROUND:Truncated dopamine and cyclic-AMP-regulated phosphoprotein (t-DARPP) is frequently overexpressed in gastrointestinal malignancies. In this study, we examined the role of t-DARPP in regulating β-catenin. RESULTS:The pTopFlash construct that contains multiple TCF/LEF-binding sites was used as a measure of β-c...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-10-32
更新日期:2011-03-29 00:00:00
abstract:BACKGROUND:Fusion of the MOZ and TIF2 genes by an inv (8) (p11q13) translocation has been identified in patients with acute mixed-lineage leukemia. Characterization of the molecular structure of the MOZ-TIF2 fusion protein suggested that the fusion protein would effect on nuclear receptor signaling. RESULTS:A series o...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-6-51
更新日期:2007-08-13 00:00:00
abstract:BACKGROUND:To clarify the implications of cell-free nucleic acids (cfNA) in the plasma in neoplastic disease, it is necessary to determine the kinetics of their release into the circulation. METHODS:To quantify non-tumor and tumor DNA and RNA in the plasma of tumor-bearing rats and to correlate such levels with tumor ...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-12-8
更新日期:2013-02-04 00:00:00
abstract:BACKGROUND:Aspartate β-hydroxylase (ASPH) is silent in normal adult tissues only to re-emerge during oncogenesis where its function is required for generation and maintenance of malignant phenotypes. Exosomes enable prooncogenic secretome delivering and trafficking for long-distance cell-to-cell communication. This stu...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/s12943-019-1077-0
更新日期:2019-11-07 00:00:00
abstract::Autophagy is a highly conserved catabolic process that mediates degradation of pernicious or dysfunctional cellular components, such as invasive pathogens, senescent proteins, and organelles. It can promote or suppress tumor development, so it is a "double-edged sword" in tumors that depends on the cell and tissue typ...
journal_title:Molecular cancer
pub_type: 杂志文章,评审
doi:10.1186/s12943-019-1030-2
更新日期:2019-05-24 00:00:00
abstract:BACKGROUND:Increasing evidence supports the role of small nucleolar RNAs (snoRNAs) and long non-coding RNAs (lncRNAs) as master gene regulators at the epigenetic modification level. However, the underlying mechanism of these functional ncRNAs in colorectal cancer (CRC) has not been well investigated. METHODS:The dysre...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/s12943-020-01201-w
更新日期:2020-05-22 00:00:00
abstract::The HER4 intracellular domain (4ICD) is a potent estrogen receptor (ERalpha) coactivator with activities in breast cancer and the developing mammary gland that appear to overlap with progesterone receptor (PgR). In fact, 4ICD has recently emerged as an important regulator and predictor of tamoxifen response, a role pr...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-9-150
更新日期:2010-06-15 00:00:00
abstract::A vast array of tumor-derived genetic, proteomic and cellular components are constantly released into the circulation of cancer patients. These molecules including circulating tumor DNA and RNA, proteins, tumor and immune cells are emerging as convenient and accurate liquid biomarkers of cancer. Circulating cancer bio...
journal_title:Molecular cancer
pub_type: 杂志文章,评审
doi:10.1186/s12943-018-0757-5
更新日期:2018-01-17 00:00:00
abstract:BACKGROUND:Phospholipid phosphatase 4 (PPAPDC1A or PLPP4) has been demonstrated to be involved in the malignant process of many cancers. The purpose of this study was to investigate the clinical significance and biological roles of PLPP4 in lung carcinoma. METHODS:PLPP4 expression was examined in 8 paired lung carcino...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/s12943-017-0717-5
更新日期:2017-08-29 00:00:00
abstract:BACKGROUND:Alterations of chromosome 8 and hypomethylation of LINE-1 retrotransposons are common alterations in advanced prostate carcinoma. In a former study including many metastatic cases, they strongly correlated with each other. To elucidate a possible interaction between the two alterations, we investigated their...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-6-14
更新日期:2007-02-05 00:00:00
abstract:BACKGROUND:Epidermal growth factor receptor (EGFR), a well-known oncogenic driver, contributes to the initiation and progression of a wide range of cancer types. Aberrant lipid metabolism including highly produced monounsaturated fatty acids (MUFA) is recognized as a hallmark of cancer. However, how EGFR regulates MUFA...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/s12943-017-0704-x
更新日期:2017-07-19 00:00:00
abstract::Live animal imaging is becoming an increasingly common technique for accurate and quantitative assessment of tumor burden over time. Bioluminescence imaging systems rely on a bioluminescent signal from tumor cells, typically generated from expression of the firefly luciferase gene. However, previous reports have sugge...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-9-299
更新日期:2010-11-22 00:00:00
abstract:BACKGROUND:In our previous studies, we have demonstrated that insulin-like growth factor binding protein-related protein1 (IGFBP-rP1) played its potential tumor suppressor role in colon cancer cells through apoptosis and senescence induction. In this study, we will further uncover the role of IGFBP-rP1 in colon cancer ...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-9-281
更新日期:2010-10-26 00:00:00
abstract:BACKGROUND:Human or animals lacking either JAK3 or the common gamma chain (gammac) expression display severe combined immunodeficiency disease, indicating the crucial role of JAK3 in T-cell development and the homeostasis of the immune system. JAK3 has also been suggested to contribute to the pathogenesis of tumorigene...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-9-36
更新日期:2010-02-11 00:00:00
abstract:BACKGROUND:Although chemotherapy represents a predominant anti-cancer therapeutic modality, drug treatment efficacy is often limited due to the development of resistant tumor cells. The pregnane X receptor (PXR) affects chemotherapeutic effects by regulating targets involved in drug metabolism and transportation, but t...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/s12943-017-0641-8
更新日期:2017-03-29 00:00:00
abstract::Chimeric antigen receptor T (CAR-T) cell therapy is an emerging and effective cancer immunotherapy. Especially in hematological malignancies, CAR-T cells have achieved exciting results. Two Anti-CD19 CAR-T therapies have been approved for the treatment of CD19-positive leukemia or lymphoma. However, the application of...
journal_title:Molecular cancer
pub_type: 杂志文章,评审
doi:10.1186/s12943-019-1057-4
更新日期:2019-08-20 00:00:00
abstract::Sema4D, also known as CD100, is a protein belonging to class IV semaphorin. Its physiologic roles in the immune and nervous systems have been extensively explored. However, the roles of Sema4D have extended beyond these traditionally studied territories. Via interaction with its high affinity receptor Plexin-B1, Sema4...
journal_title:Molecular cancer
pub_type: 杂志文章,评审
doi:10.1186/1476-4598-9-251
更新日期:2010-09-21 00:00:00
abstract:BACKGROUND:Relapse due to chemoresistant residual disease is a major cause of death in acute myelogenous leukemia (AML). The present study was undertaken to elucidate the molecular mechanisms of chemoresistance by comparing differential gene expression in blasts from patients with resistant relapsing AML and chemosensi...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-6-31
更新日期:2007-04-23 00:00:00
abstract:BACKGROUND:Sharing the common neuroectodermal origin, melanoma and neuroblastoma are tumors widely diffused among adult and children, respectively. Clinical prognosis of aggressive neuroectodermal cancers remains dismal, therefore the search for novel therapies against such tumors is warranted. Curcumin is a phytochemi...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-9-137
更新日期:2010-06-03 00:00:00
abstract:BACKGROUND:Nilotinib is a tyrosine kinase inhibitor with high target specificity. Here, we characterized the effects of nilotinib for the first time on CD4+CD25+ regulatory T cells (Tregs) which regulate anti-tumor/leukemia immune responses. DESIGN AND METHODS:Carboxyfluorescein diacetate succinimidyl ester (CFSE) and...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-9-22
更新日期:2010-01-29 00:00:00
abstract:BACKGROUND:The role of TNF-alpha in affecting the fate of tumors is controversial, while some studies have reported apoptotic or necrotic effects of TNF-alpha, others provide evidence that endogenous TNF-alpha promotes growth and development of tumors. Understanding the mechanism(s) of TNF-alpha mediated growth arrest ...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-6-42
更新日期:2007-06-12 00:00:00
abstract:BACKGROUND:Glycochenodeoxycholate (GCDA) is one of the major human bile salts. Bile salts stimulate cell survival and proliferation through the mitogen-activated protein kinase, but the downstream signaling mechanism(s) remains enigmatic. Mcl-1 is an antiapoptotic molecule of the Bcl2 family that is extensively overexp...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-10-44
更新日期:2011-04-20 00:00:00
abstract::Cells respond to hypoxia by shifting cellular processes from general housekeeping functions to activating specialized hypoxia-response pathways. Oxygen plays an important role in generating ATP to maintain a productive rate of protein synthesis in normoxia. In hypoxia, the rate of the canonical protein synthesis pathw...
journal_title:Molecular cancer
pub_type: 杂志文章,评审
doi:10.1186/s12943-019-0968-4
更新日期:2019-03-30 00:00:00
abstract:BACKGROUND:Metabolic plasticity has been increasingly thought to be a determinant of tumor growth and metastasis. MACC1, a transcriptional regulator of MET, was recognized as an oncogene in gastric cancer (GC); however, its transcriptional or post-translational regulation was not clear. We previously reported the metab...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/s12943-018-0820-2
更新日期:2018-03-06 00:00:00
abstract:BACKGROUND:Neurofibromatosis type 1 (NF1) is the most common hereditary neurocutaneous disorder and it is associated with an elevated risk for malignant tumors of tissues derived from neural crest cells. The NF1 gene is considered a tumor suppressor gene and inactivation of both copies can be found in NF1-associated be...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-5-36
更新日期:2006-09-10 00:00:00
abstract:BACKGROUND:An organic extract of the recreational herb khat (Catha edulis Forsk.) triggers cell death in various leukemia cell lines in vitro. The chemotherapeutics camptothecin, a plant alkaloid topoisomerase I inhibitor, was tested side-by-side with khat in a panel of acute myeloid leukemia cell lines to elucidate me...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-8-101
更新日期:2009-11-13 00:00:00
abstract:BACKGROUND:In the current study we investigated the role of caveolin-1 (cav-1) in pancreatic adenocarcinoma (PC) cell migration and invasion; initial steps in metastasis. Cav-1 is the major structural protein in caveolae; small Omega-shaped invaginations within the plasma membrane. Caveolae are involved in signal trans...
journal_title:Molecular cancer
pub_type: 杂志文章
doi:10.1186/1476-4598-4-21
更新日期:2005-06-21 00:00:00
abstract::Recent studies have shown that on one hand, tumors need to obtain a sufficient energy supply, and on the other hand they must evade the body's immune surveillance. Because of their metabolic reprogramming characteristics, tumors can modify the physicochemical properties of the microenvironment, which in turn affects t...
journal_title:Molecular cancer
pub_type: 杂志文章,评审
doi:10.1186/s12943-018-0913-y
更新日期:2018-11-26 00:00:00
abstract:BACKGROUND:RNA interference (RNAi), a newly developed method in which RNA molecules inhibit gene expression, has recently received considerable research attention. In the development of RNAi-based therapies, nanoparticles, which have distinctive size effects along with facile modification strategies and are capable of ...
journal_title:Molecular cancer
pub_type: 杂志文章,评审
doi:10.1186/s12943-017-0683-y
更新日期:2017-07-28 00:00:00