Abstract：
BACKGROUND:SagA1 and SagA2 molecules produced from beta-hemolytic Streptococcus anginosus subsp. anginosus are composed of a leader peptide and a propeptide, and their mature form has hemolytic activity as a well-known Streptococcal peptide toxin, streptolysin. The function of these SagA molecules is thought to be dependent on intra-molecular heterocycle formation. In this study, we examined the heterocycle-involved molecular features of SagA1, SagA2, and S. pyogenes SagA (SPySagA), focusing on their heterocycle formation. MATERIALS AND METHODS:Molecular models of SagA1, SagA2, and SPySagA were constructed using a molecular modeling technique. Molecular dynamics and molecular mechanic analyses of the modeled SagA molecules were performed to obtain their energy profiles. RESULTS:Total energy of the modeled SagA1, SagA2, and SPySagA decreased with heterocycle formation, and the border between the leader peptide and propeptide was clearly observed after heterocycle formation. CONCLUSION:The flexibility of SagA molecules was changed by intramolecular heterocycle formation, and their function (e.g. hemolytic activity) seems to be regulated by structural transition with heterocycle formation.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Kawaguchi Y,Tabata A,Nagamune H,Ohkura Ksubject
Has Abstractpub_date
2014-08-01 00:00:00pages
4627-31issue
8eissn
0250-7005issn
1791-7530pii
34/8/4627journal_volume
34pub_type
杂志文章abstract：BACKGROUND/AIM:Human lectins translate sugar-encoded signals of cell surface glycoconjugates into biological effects, and this is what is known for the adhesion/growth-regulatory galectins. In addition, the multifunctional members of this group can be intracellular, binding to distinct proteins. The presence of galecti...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-08-01 00:00:00
abstract：:P53 mutation, through defects in repairing DNA damages, is associated with genomic instability. In 24 adult patients with relapsed acute lymphoblastic leukemia (ALL), the status of the p53 gene at different stages was serially followed by cytogenetic and polymerase-chain reaction/single strand conformation polymorphis...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-03-01 00:00:00
abstract：BACKGROUND:Trastuzumab has no major side-effects except the potential for cardiac toxicity. The main objective of this study was to evaluate the association between trastuzumab-associated cardiac toxicity and two potential risk factors: alcohol intake and HER2 polymorphisms. PATIENTS AND METHODS:In a retrospective coh...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-06-01 00:00:00
abstract：:The expression of the HMG-CoA-reductase and LDL-receptor genes was examined in primary human embryonic tumours and in normal human first trimester foetal tissues. All embryonic and extra-embryonic tissues examined contained RNA that hybridized with the HMG-CoA-reductase and LDL-receptor cDNA-probes. However, the trans...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1987-05-01 00:00:00
abstract：BACKGROUND:Locoregional treatments represent a good option for patients suffering from hepatocellular carcinoma (HCC) not eligible for resection or transplantation. Locoregional approaches include a wide spectrum of therapeutic methods and hepatic intra-arterial drug infusion is also considered. Fotemustine is a chemot...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-12-01 00:00:00
abstract：:In this study, we set out to determine if the differential sensitivities to CPT between a radioresistant (Sk-Mel-3) and a radiosensitive (HT-144) human melanoma cell line, and also between cultures with a different growth phase in each cell line, were related to endogenous differences in cellular transport of CPT or t...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
abstract：:The effect of 5,6,7,8-tetrahydrobiopterin (BPH4) on HL-60 cell damage induced by a nitric oxide (NO) donor, S-nitroso-N-acetyl-penicillamine (SNAP), was investigated. The activity of lactate dehydrogenase (LDH), a marker of cell damage, was elevated dose- and time-dependently after treatment with SNAP. The cells under...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-03-01 00:00:00
abstract：BACKGROUND:Since tumor markers can be increased in the course of many benign diseases, the aim of this study was to verify if this also occurs in the course of rheumatic diseases. MATERIALS AND METHODS:We investigated the incidence and characteristics of Tumor M2-PK in the EDTA-plasma of 137 patients suffering from rh...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-03-01 00:00:00
abstract：BACKGROUND:In germ cell testicular tumors (GCTT) mdm-2 gene was analyzed for amplification and transcripts but not for protein. The purpose of this study is to determine whether mdm-2 protein level is aberrant in GCTT and if so, what is the relationship between mdm-2 overexpression and other disease parameters includin...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-07-01 00:00:00
abstract：:The bcl-2 proto-oncogene suppresses apoptosis in a variety of cell types and is essential for normal renal development. PAX8 is a member of the paired box class of transcription factors and is developmentally regulated. bcl-2 and PAX8 are both expressed in the kidney during development and throughout life, demonstrati...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-09-01 00:00:00
abstract：BACKGROUND/AIM:Biosimilar agents are biologic products that have no clinically meaningful differences in terms of quality, efficacy, safety and immunogenicity compared to an already approved reference biological product, with the potential to reduce the costs of biologics. Considering the increasing numbers of oncology...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13552
更新日期：2019-07-01 00:00:00
abstract：:A large variety of models of both artificial and spontaneous metastases have been developed in experimental animals. These models have enabled the characterization of metastatic cancer cells and have helped in understanding the metastatic process. Studies of experimental metastases of human tumors have so far been rat...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：1987-09-01 00:00:00
abstract：:Gynaecologic oncology day surgery deals primarily with the diagnosis of endometrial, cervical, vulvar and vaginal tumors. Conscious sedation is an important technique used in gynaecologic oncology day surgery. It is often associated with regional anaesthesia. The goals of conscious sedation are to provide effective pa...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：2004-11-01 00:00:00
abstract：BACKGROUND:Breast cancer is the most frequent cancer and the second leading cause of cancer deaths in women today. A number of 1,4-naphthoquinone derivatives have been found to possess significant pharmacological effects associated with marked antimicrobial and antitumor activities. In the present study, the in vitro e...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-01-01 00:00:00
abstract：:The majority of human tumors display a high rate of glycolysis under aerobic conditions. This phenomenon was recognized approximately seven decades ago and is known as the Warburg effect. Several key enzymes required to maintain this high level of glucose metabolism are found in tumor cells. The effects of the glycoly...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2013-07-01 00:00:00
abstract：BACKGROUND:Basic conventional prognostic factors for breast cancer include the age of the patient, tumor grade, regional lymph nodes status, and estrogen (ER) and progesterone (PR) receptor status. Positivity of the HER2 receptor (c-erbB-2) seems to be a new prognostic and predictive factor. Prognostic factors seem to ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-07-01 00:00:00
abstract：:Iron overload has been shown to impair the immune response of the liver, and induce hepatic fibrosis and cirrhosis. Opinions differ concerning the relative risk of developing hepatocellular carcinoma (HCC) in siderotic patients as compared with patients with hepatic fibrosis and cirrhosis and the possible mechanism of...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-09-01 00:00:00
abstract：BACKGROUND:The association of TN expression, tumour grading and expression of commonly used histopathologic prognostic factors (p53 and estrogen receptor) was examined in 62 cases of invasive ductal carcinoma of the breast. MATERIAL AND METHODS:Following histological grading immunohistochemical reactions were undertak...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:Mediation of cellular interactions by protein (lectin)-carbohydrate recognition presupposes the expression of respective surface determinants. Due to the importance of cellular contacts between bone marrow stromal cells, recently shown to express cell surface lectins, and tumor or normal progenitor cells for biosignal...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1991-03-01 00:00:00
abstract：:Adult lymphoblastic lymphoma (LBL) can be of T-cell or B-cell lineage. However, the clinical significance of immunophenotypes is largely unknown. We conducted a retrospective study to compare T-cell LBL with its B-cell counterpart. Between 1983 and 1995, 50 adult patients were diagnosed as LBL at National Taiwan Unive...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-05-01 00:00:00
abstract：AIM:The expression level of DNA repair-related genes and their association with breast cancer status among participants of the New York site of the Breast Cancer Family Registry was investigated. MATERIALS AND METHODS:RNA from mononuclear cells in 194 sister sets (n=475 women) were assayed for ATM, BRCA1, MSH2, MUTYH ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-08-01 00:00:00
abstract：BACKGROUND/AIM:We undertook a case-control and a case-case study to examine the possible association of p53 codon72 polymorphism with the breast cancer risk and resistance to anthracycline-based chemotherapy. PATIENTS AND METHODS:Case-control study: This study enrolled 175 patients with breast cancer treated at the Sa...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-03-01 00:00:00
abstract：:Bisphosphonates are strong inhibitors of osteoclastic bone resorption in both benign and malignant bone diseases. The nitrogen-containing bisphosphonates (N-BPs) have strong cytotoxicity via inhibition of protein prenylation in the mevalonate pathway, and also demonstrate direct cytostatic and proapoptotic effects on ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-04-01 00:00:00
abstract：:Phorbol ester, 12-0-Tetradecanoyl-13-Phorbol-Acetate (TPA), induces a terminal macrophage-like differentiation of cells from human acute myelogenous leukemia cell lines. We report here that blastoid cells obtained from acute nonlymphocytic leukemia (M1-M2) undergo differentiation-related changes characteristic of macr...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1988-11-01 00:00:00
abstract：:Paclitaxel has been approved as second-line therapy after anthracyclines in AIDS-Kaposi's sarcoma (KS) patients. To date, only one patient with classical KS and treated with standard dose (175 mg/m2) 3-weekly paclitaxel as first line therapy has been reported in the literature. Herein, the first case is presented of a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-02-01 00:00:00
abstract：AIM:We screened nine 1,2-dihydro-quinolines using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cytotoxicity assay in HepG2 and SMMC cells and identified ethyl-2-cyano-2-(2- (methoxycarbonyl)allyl)quinoline-1(2H)-carboxylate (compound 5) as a potential anticancer agent. In order to further deve...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-05-01 00:00:00
abstract：BACKGROUND:The tumor microenvironment is an emerging source of novel therapeutic targets in cancer. The glycosaminoglycan hyaluronan (HA) accumulates in 20-30% of tumors and is often associated with poor prognosis. MATERIALS AND METHODS:We developed a digitized, semiquantitative scoring system for tumor-associated HA ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2012-04-01 00:00:00
abstract：:Intracellular accumulation of adriamycin (ADR) has been reported to be influenced by cell membrane potential. We first evaluated intracellular accumulation of ADR and 3,3'-(di-n-hexyl)-2,2'-oxacarbocyanine iodide (NK-2280), an indicator of cell membrane potential, and found a good correlation between ADR and NK-2280 i...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-03-01 00:00:00
abstract：:Almost all individuals with neurofibromatosis type 1 (NF1) develop peripheral nerve sheath tumors (PNSTs), mainly benign neurofibromas, however about 10% of PNSTs will undergo transformation to malignant peripheral nerve sheath tumors (MPNSTs). Surgical treatment of PNSTs has traditionally been regarded as a standard ...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：10.21873/anticanres.14136
更新日期：2020-04-01 00:00:00
abstract：BACKGROUND/AIM:This study's aim was to investigate the safety and effectiveness of asunaprevir and daclatasvir treatment for recurrent hepatitis C virus (HCV) infection in transplant recipients. The study cohort comprised 14 transplant recipients with recurrent hepatitis C who were receiving asunaprevir and daclatasvir...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12885
更新日期：2018-09-01 00:00:00
