Abstract:
:Release of DNA fragments into the culture supernatant of human promyelocytic cell line HL-60 was investigated. The released DNA has previously been shown to have a strong immunosuppressive effect on the proliferation of mitogen-stimulated human peripheral lymphocytes and some cancer cell lines. In this study, HL-60 cells were cultured for four days in serum-free medium and the amount of extracellular nucleic acid was monitored daily. Nucleic acids were isolated by phenol/chloroform extractions, followed by ethanol precipitations. A similar amount of DNA was identified in the HL-60 culture supernatant regardless of whether the cells were incubated for one day or up to four days. Also, the same amount of DNA was isolated from culture supernatants after washing the cells daily and reincubating into the fresh medium. During the first 8 hours of incubation no DNA material was detected in the culture supernatant, whereas at 24 h the concentration of the extracellular DNA reached a plateau. The data suggest the extracellular DNA is not accounted for totally by DNA from dying cells, and a regulatory mechanism may be involved which controls the release of DNA into the medium.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Abolhassani M,Tillotson J,Chiao Jdoi
10.3892/ijo.4.2.417subject
Has Abstractpub_date
1994-02-01 00:00:00pages
417-21issue
2eissn
1019-6439issn
1791-2423journal_volume
4pub_type
杂志文章abstract::The pituitary gland is an organ that functionally connects the hypothalamus with the peripheral organs. The pituitary gland is an important regulator of body homeostasis during development, stress, and other processes. Pituitary adenomas are a group of tumors arising from the pituitary gland: they may be subdivided in...
journal_title:International journal of oncology
pub_type: 杂志文章,评审
doi:10.3892/ijo.2017.4120
更新日期:2017-10-01 00:00:00
abstract::The proteins of the rho gene family have been isolated from cytosolic as well as particulate fractions. The rho proteins have values of about 22KDa and have consensus amino acid sequences for GTP/GDP-binding and GTPase activities. We have localized the rho proteins in mammalian cells by using affinity-purified anti-pe...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.3.6.1103
更新日期:1993-12-01 00:00:00
abstract::Sphingosine-1-phosphate (S1P) is a bioactive phospholipid that transmits signals through G-protein-coupled receptors to control cellular differentiation, survival, and several functions of immune cells. S1P is a chemoattractant for NK cells, which are critical members of the immunological tumor surveillance machinery....
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2009-01-01 00:00:00
abstract::On the basis of the gene expression profiles of 120 lung cancer cases using a cDNA microarray containing 27,648 genes or expressed sequence tags (ESTs), we identified LRRC42 (Leucine-rich repeat containing 42) to be significantly upregulated in the majority of lung cancers. Northern blot analysis demonstrated that LRR...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2418
更新日期:2014-07-01 00:00:00
abstract::Early gastric cancers (EGC) may be subdivided into 2 groups by means of the use of mitotic index, apoptotic index and cell density: EGCs with high cell turnover and low cell density, which show high cell dissociation and, more frequently, lymph node invasion; EGCs with low cell turnover and high cell density. The same...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.12.4.883
更新日期:1998-04-01 00:00:00
abstract::Malignant pleural mesothelioma (MPM) is an aggressive cancer for which more effective treatments are needed. In this study, strong to moderate staining of MET and ERK5 was detected in 67.1 and 48% of the analyzed 73 human mesothelioma tumors, and significant correlation of MET and ERK5 expression was identified (P<0.0...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2017.4021
更新日期:2017-07-01 00:00:00
abstract::Breast cancer is the neoplasia with the highest incidence in women worldwide. Proteomics approaches have accelerated the discovery of diagnostic and prognostic biomarkers. Here, we compared the proteomic profiles of breast tumors versus non-tumoral tissues in order to identify modul...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2012.1478
更新日期:2012-08-01 00:00:00
abstract::A normal human lymphocyte-derived 54 kDa polypeptide, capable of regulating cell growth has been identified as an isoform variant (abbreviated as NP54) of protein neuroleukin-phosphoglucose isomerase (PGI). Since distinct PGI variants undetectable in normal tissues had been identified in breast cancer tissues, the eff...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.15.4.835
更新日期:1999-10-01 00:00:00
abstract::This study defines the role of WWOX in the regulation of epithelial to mesenchymal transition. A group of 164 endometrial adenocarcinoma patients was studied as well as an ECC1 well-differentiated steroid-responsive endometrial cell line, which was transducted with WWOX cDNA by a retroviral system. The relationship be...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2015.2964
更新日期:2015-01-01 00:00:00
abstract::Bovine lactoferricin (LfcinB) is a cationic antimicrobial peptide that selectively induces apoptosis in several different types of human cancer cells. However, the potential use of LfcinB as an anticancer agent is presently limited by the need for relatively high concentrations of the peptide to trigger apoptosis. Cer...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2008-03-01 00:00:00
abstract::Angiogenic factors are major causes of tumor progression in hematological malignancies, particularly multiple myeloma, as well as solid tumors. The introduction of thalidomide as an anti-angiogenic agent in myeloma treatment has demonstrated the importance of angiogenic factors in the progression of myeloma. However, ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract::Selenium is a trace nutrient element that protects cells against oxidative damage. In this study, the potential of selenium to improve stem cell potency through active proliferation and migration of 3T3-L1 preadipocytes was investigated, together with the underlying molecular mechanisms. The results indicated that sel...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2013.2182
更新日期:2014-01-01 00:00:00
abstract::Colorectal cancer (CRC) is the third most common type of cancer; however, the molecular mechanisms underlying colorectal tumor metastasis and growth remain elusive. Recently, accumulating evidence has indicated that long non‑coding RNAs (lncRNAs) play a critical role in CRC progression and metastasis; however, the bio...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2018.4451
更新日期:2018-09-01 00:00:00
abstract::The two-kringle domain of tissue-type plasminogen activator (TK1-2) has been identified as a novel angiogenesis inhibitor. In the previous study, purified Pichia-derived TK1-2 has been shown to suppress in vivo growth of human lung and colon cancer cells. Here, we demonstrate that E. coli-derived non-glycosylated TK1-...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2006-02-01 00:00:00
abstract::Cell division cycle 20 (CDC20) encodes a regulatory protein interacting with the anaphase-promoting complex/cyclosome (APC/C) in the cell cycle and plays important roles in tumorigenesis and progression of multiple tumors. The present study aimed to investigate the clinical significance of CDC20 in hepatocellular carc...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2559
更新日期:2014-10-01 00:00:00
abstract::Family with sequence similarity 83 member A (FAM83A) has been recently observed to be upregulated in various types of cancer and hypothesized to be serve as an oncogene. The present study aimed to determine the functional roles and the underlying molecular mechanism of FAM83A in cervical cancer. The results demonstrat...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2020.5078
更新日期:2020-08-01 00:00:00
abstract::The development of carcinoma is associated with alterations in the expression of many cell adhesion molecules. Syndecan-1 is a cell surface proteoglycan that binds cells to the extracellular matrix and changes its expression following malignant transformation in some tumors. Our purpose was to examine the pattern of s...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2002-01-01 00:00:00
abstract::Primary cilia are microtubule-based organelles that regulate smoothened-dependent activation of the GLI transcription factors in canonical hedgehog signaling. In many cancers, primary cilia are markedly decreased or absent. The lack of primary cilia may inhibit or alter canonical hedgehog signaling and, thereby, inter...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2015.3006
更新日期:2015-07-01 00:00:00
abstract::In solid tumours, necrosis is commonly found in the core region in response to metabolic stress that results from oxygen and glucose depletion (OGD) due to insufficient vascularization and has been implicated in tumour progression. We have previously shown that metabolic stress due to glucose depletion (GD) induces ne...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2010-01-01 00:00:00
abstract::The relation between the consumption of cruciferous vegetables and reduced prostate cancer occurrence has been documented, although the responsible phytochemicals are unknown. The effects of sulforaphane (SFN) which occurs as the precursor glucosinolate in broccoli and other cruciferous vegetables, and its metabolite ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.20.3.631
更新日期:2002-03-01 00:00:00
abstract::Multidrug-resistance (MDR) is largely caused by the efflux of therapeutics from the tumor cell by means of P-glycoprotein (P-gp), resulting in reduced efficacy of the chemotherapy. In order to overcome MDR, substances, such as verapamil and cyclosporin A (CsA), were employed. As these P-gp modulating agents did not se...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.23.6.1505
更新日期:2003-12-01 00:00:00
abstract::The microtubule associated tumor suppressor gene 1 (MTUS1) is a recently published tumor suppressor gene, which has also been shown to act as an early component in the growth inhibitory signaling cascade of the angiotensin II type 2 receptor (AT2R). In this study we report the generation of MTUS1 knock-out (KO) mice, ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2011.1311
更新日期:2012-04-01 00:00:00
abstract::The purpose of this study was to determine whether DU145, a human prostate cancer cell line: (a) transcribes mRNAs coding for beta A- and beta B-subunits of activin, a member of transforming growth factor beta (TGF beta) superfamily, and activin receptors I, II, and IIB; and (b) produces activin proteins. The expressi...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.7.2.239
更新日期:1995-08-01 00:00:00
abstract::Cancer stem cells (CSCs) in glioma are often responsible for relapse and resistance to therapy. The purpose of the present study was to confirm the self-renewal and migration inhibitory effects of tetrandrine (Tet), which is a compound extracted from the dried root of Stephania tetrandra S. Moore, toward glioma stem-l...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2016.3780
更新日期:2017-01-01 00:00:00
abstract::Cytokine production in squamous cell carcinoma (SCC) of the head and neck may directly influence the clinical behavior of this aggressive neoplasm since cytokines act as autocrine/paracrine growth factors, as well as immunomodulators. In the present study, the cytokine profiles of 16 SCCs of the head and neck and matc...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract::Glutamate is the major excitatory neurotransmitter in the central nervous system (CNS) and binds to a variety of receptors, which recently have also been detected in peripheral, non-excitable cells. New research suggests that this abundant amino acid might also be involved in the growth of tumor cells acting via novel...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2005-09-01 00:00:00
abstract::Continued emphasis on treating endometrial cancer primarily as a surgical disease has led to the institution, in 1988, of a new staging system based on operative findings. Since the system is new, limited experience has been published confirming its theoretical advantage in predicting clinical outcome. In a four year ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.4.1.247
更新日期:1994-01-01 00:00:00
abstract::A multi stage extraction procedure which gives the possibility to analyze both water soluble and lipid components stemming from the same specimen has been developed in our laboratory. Metabolites from brain cancer biopsies have been compared to metabolites in normal human brain, developing mouse brain and primary mous...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2.4.545
更新日期:1993-04-01 00:00:00
abstract::Tumor necrosis factor‑associated apoptosis‑inducing ligand (TRAIL) is considered to be a potential therapeutic target for various types of cancer. However, colon cancer is difficult to treat due to its resistance to TRAIL. Therefore, various trials have been conducted to overcome TRAIL resistance in colon cancer. The ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2020.4970
更新日期:2020-03-01 00:00:00
abstract::Loss of chromosome sequences at 13q14 (Rbl) and 17p13 (p53) associated with squamous cell carcinoma of head and neck (SCCHN) was evaluated in 12 recurrent tumors and 51 primary tumors from 63 patients. The incidence of LOH at 17p13 was 19 of 50 (38%) tumors, and at 13q14 was 21 of 57 (37%). LOH affecting Rbl and/or p5...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.10.6.1235
更新日期:1997-06-01 00:00:00