Abstract：
BACKGROUND:The mammalian target of rapamycin (mTOR) controls cell growth through protein synthesis regulation. It can be activated by protein kinase B (AKT) or through ribosomal S6 kinase (S6K1). In malignant glioma, mTOR inhibitors have antiproliferative and proapoptotic effects and mTOR has been suggested as a target of therapies, thus it is worthwhile to verify its relations with the phosphatidylinositol-3-kinase (PI3)/AKT cascade, proliferation and apoptosis in human gliomas. MATERIALS AND METHODS:In a series of 64 gliomas, including high- and low-grade tumors, AKT, mTOR, S6, caspase-3, poly(ADP-ribose) polymerase 1 (PARP1) and cleaved PARP1, Ki-67/MIB.1 and beclin 1 were studied by molecular biology techniques, quantitative immunohistochemistry and Western blotting. RESULTS:mTOR (phospho-mTOR), S6 (phospho-S6), AKT (phospho-AKT) levels and Ki-67/MIB.1 labelling index (LI) increased with increasing grade of malignancy. Epithelial growth factor receptor (EGFR) amplification correlated with EGFRwt and EGFRvIII immunohistochemistry, and with AKT expression; the latter correlated with mTOR expression, whereas S6 expression correlated with Ki-67/MIB.1 LI. Within the category of glioblastoma, S6 but not mTOR correlated with proliferation. mTOR did not show correlation with apoptosis, whereas it was inversely correlated with beclin 1, in line with the observation that autophagy is not activated in many malignancies. CONCLUSION:The relationship of S6 with the proliferation markers emphasizes the importance of the position of S6K1 downstream AKT in the PI3/AKT pathway.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Annovazzi L,Mellai M,Caldera V,Valente G,Tessitore L,Schiffer Dsubject
Has Abstractpub_date
2009-08-01 00:00:00pages
3087-94issue
8eissn
0250-7005issn
1791-7530pii
29/8/3087journal_volume
29pub_type
杂志文章abstract：:The chemotherapeutic agent retinoic acid (RA) inhibits the proliferation and invasion of many tumor types. RA chemotherapy in head and neck squamous cell carcinoma (SCC) patients reduces recurrence and induces regression of premalignant lesions. The effects of RA are mediated by both cytoplasmic and nuclear proteins. ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:The content, composition and physicochemical characteristics of glycosaminoglycans in human rectum and rectum carcinoma were investigated by chemical analyses, enzymic treatments, chromatographic and electrophoretic techniques. The overall glycosaminoglycan content was increased about 2 fold in neoplastic tissues comp...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1995-09-01 00:00:00
abstract：:The requirements on sunscreens have essentially changed, since some years ago it was demonstrated that approximately 50% of free radicals, that are formed in the skin by solar radiation, originate from the visible and infrared regions of the solar spectrum. In addition, a critical radical concentration threshold could...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2016-03-01 00:00:00
abstract：BACKGROUND:Venous thromboembolism (VTE) is associated with cancer. Cancer patient with thromboembolism have poorer prognosis. This study assessed the risk and mortality in pancreatic cancer patients who develop VTE. PATIENTS AND METHODS:A retrospective chart review was performed of 201 patients with pancreatic cancer....
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-10-01 00:00:00
abstract：BACKGROUND:Renal oncocytomas (ROs), and clear cell (RCC) and urothelial carcinomas (UC), are common renal neoplasms. Nicotinamide phosphoribosyltransferase (Nampt) catalyzes the rate-limiting step of NAD+ synthesis and its expression is increased in several tumors. Nampt concomitantly regulates hydrogen sulfide (H2S)-s...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11709
更新日期：2017-07-01 00:00:00
abstract：:A possible influence of tamoxifen (TAM) treatment on the measurable content of some steroid hormone receptors (i.e. ER, PgR, AR) from primary breast cancers has been evaluated. In eleven postmenopausal women, two biopsies were taken from the same tumor, the first biopsy before starting endocrine treatment, and a secon...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-05-01 00:00:00
abstract：:The purpose of our study was to evaluate the presence of anatomical and functional damage to the afferent and sensorial fibres using the Neurometer CPT test. A questionnaire regarding pain was sent to 300 women who had undergone surgery six months earlier. Out of 300 patients 67 did not respond; 105 experienced no pai...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-09-01 00:00:00
abstract：BACKGROUND/AIM:Gemcitabine is a drug commonly used to treat pancreatic cancer but chemoresistance to it is a common clinical issue. KML001 (sodium meta-arsenite) has demonstrated certain antitumor activity. The objective of the study was to evaluate the influence of KML001 on the anticancer activity of gemcitabine agai...
journal_title：Anticancer research
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doi：
更新日期：2015-01-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11948
更新日期：2017-09-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-12-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-07-01 00:00:00
abstract：BACKGROUND:Mistletoe lectins (MLs) are the active components of aqueous mistletoe extracts widely used in complementary cancer therapy, however, it is not clear if they bind to carbohydrate residues only or whether they interact with proteins as well. Protein-protein interactions do not seem unlikely as MLs act at very...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-12-01 00:00:00
abstract：:We investigated whether the levels of the DNA-dependent protein kinase (DNA-PK) activity and content correlate with drug sensitivity in different tumour materials and if this can be utilised in predicting treatment outcome. DNA-PK activity and expression were investigated in tumour cells from 8 patients with chronic l...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-05-01 00:00:00
abstract：BACKGROUND:Endometrial carcinoma is a well known complex gynecological disorder. Our team suggests that this tumor is related to immortalization-up-regulated protein 1 and 2 (imup-1, imup-2), which are known to be involved in SV40-mediated immortalization. PATIENTS AND METHODS:RT-PCR and immunohistochemical staining w...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-03-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-01-01 00:00:00
abstract：BACKGROUND/AIM:Stage-specific embryonic antigen-4 (SSEA-4) expression is associated with malignant aggressiveness and is useful as a marker for identifying cancer stem cells. Our aim was to assess the relationship between hormonal therapy and SSEA-4 expression in prostate cancer (PC). MATERIALS AND METHODS:SSEA-4 expr...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14569
更新日期：2020-10-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2012-04-01 00:00:00
abstract：BACKGROUND:Pemetrexed and erlotinib represent novel agents for the treatment of non-small cell lung cancer (NSCLC). The role of sequential treatment in NSCLC has not been elucidated yet. We compared the efficacy of second-line pemetrexed followed by third-line erlotinib (P-E) to treatment with the reverse sequence (E-P...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-08-01 00:00:00
abstract：:A significant number of human tumors from diverse histological origins contain c-K-ras oncogenes which have been activated by somatic point mutations resulting in single amino acids substitutions in the encoded p21 ras protein. In addition to these qualitative changes, other genetic alterations leading to increased ex...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：1987-07-01 00:00:00
abstract：:The incorporation and metabolism of delta-6-desaturase substrate and product, [1-14C]-linoleic (18:2n-6) and [1-14C]-gamma-linolenic acid (18:3n-6), was examined in NIH-3T3 cells and the DT subclone which differs only in the presence of the v-Ki-ras oncogene. Similar amounts of post delta-6 and delta-5 desaturase meta...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-07-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：BACKGROUND:Most cancer cells exhibit increased anaerobic glycolysis and use this metabolic pathway for the generation of ATP as a main source of energy. This impaired metabolism of glucose, leading to the secretion of lactic acid even in the presence of oxygen, is named the Warburg effect. Because cancer cells are part...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-04-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12282
更新日期：2018-02-01 00:00:00
abstract：:Colorectal cancers are often preceded by noninvasive neoplasias arising in the surface epithelium, namely tubular, tubulovillous and villous adenomas. That neoplasias may also arise in the colorectal crypts is less well known. Between 1998 and 2002, colonoscopies, rectoscopies and colorectal surgical specimens from 86...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-11-01 00:00:00
abstract：BACKGROUND:Human leukocyte antigen (HLA) class I expression is reportedly frequently reduced in cancer. We examined heat-shock protein (HSP) expression in hepatocellular carcinoma (HCC). PATIENTS AND METHODS:HCV-related HCC was examined in 73 patients who had undergone hepatectomy, and the relationship between HSP70 a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-02-01 00:00:00
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journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-05-01 00:00:00
abstract：BACKGROUND/AIM:Although reckoned necessary for survival benefit, neoadjuvant chemotherapy (NAC) of gastric cancer (GC) patients has so far provided questionable results. Consequently, searching for new and clearer systems of response to NAC, post-NAC re-evaluation and prognostic prediction appears essential. The purpos...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13208
更新日期：2019-02-01 00:00:00
abstract：:Over recent decades there has been debate over whether or not Swedish snuff is carcinogenic in humans. Animal studies and molecular biological and experimental studies have shown the carcinogenic potential of Swedish snuff, but this has not been proved in prospective randomized studies. We present a case series of pat...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2012-08-01 00:00:00
abstract：:Urine and serum samples from a group of 359 individuals were studied in order to evaluate the usefulness of TPA in patients with urological cancers. Serum was taken from 110 people at 12 noon (S1), 5 pm (S2), and 8 am the following day (S3), while urine samples were collected from 73 individuals over three time interv...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1986-07-01 00:00:00
abstract：BACKGROUND/AIM:We aimed to analyze the clinical impact of solid and micropapillary components in a series of Japanese patients resected for ≤3 cm lung adenocarcinoma. PATIENTS AND METHODS:A total of 115 patients with ≤3 cm lung adenocarcinomas were reviewed and classified according to the American Thoracic Society and...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11058
更新日期：2016-09-01 00:00:00
