Abstract:
:Lymphocytes isolated from the peripheral blood of patients with chronic lymphocytic leukemia (CLL) and from healthy donors were studied for membrane fluidity and lipid phase separation. The degree of fluidity of the surface membrane lipids was estimated by fluorescence polarization analysis using the probe 1,6-diphenyl-1,3,5-hexatriene (DPH) embedded in the lipid core of the surface membrane of intact cells. CLL lymphocytes showed a more fluid lipid bilayer in their plasma membrane than normal lymphocytes. Treatment of both groups of lymphocytes with cholesteryl hemisuccinate (CHS) complexed with PVP and BSA resulted in rigidification of cell membranes. A lipid thermotropic transition temperatures was observed at 23.6 + 1.1 degree in normal lymphocytes and 16.3 + 1.0 degree in CLL lymphocytes, which rose to 32.3 + 1.3 degree in normal and was abolished in CLL lymphocytes after treatment with CHS. "Compound lipid fluidizer" reduced the thermotropic transition temperature to 17.5 + 1.0 degree and 15.1 + 0.9 degree in normal and CLL lymphocytes, respectively. A statistically significant increase (p less than 0.01) in the specific activity of the ecto-ATPase was observed in CLL lymphocytes as compared to normal cells. A dramatic increase of the ecto-ATPase activity was also observed when normal lymphocytes were treated with 0.05-0.5 mM CHS. The biological significance of these results is discussed in terms of modifications in the lipid-protein interactions in lymphocyte plasma membrane induced by CHS and the implications in the proliferation of leukemic cells.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Deliconstantinos G,Daefler S,Krueger GRsubject
Has Abstractpub_date
1987-05-01 00:00:00pages
347-52issue
3 Pt Beissn
0250-7005issn
1791-7530journal_volume
7pub_type
杂志文章abstract::An examination of eighteen thiols and thio ethers revealed that the simultaneous administration of several of these with cis-platinum (CDDP) at 7.5 mg/kg (25 mumols/kg) iv, as a single injection to rats bearing the Walker 256 carcinosarcoma led to significant reduction in the nephrotoxicity typically found with cis-pl...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1989-11-01 00:00:00
abstract::The in vitro antiproliferative or stimulatory activity of an aqueous mistletoe extract (AME) with a defined content of bioactive mistletoe lectin (ML) was investigated in 6 human tumor cell lines, including two melanomas and leiomyosarcomas, each of which had previously been reported to show evidence of growth stimula...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2003-09-01 00:00:00
abstract::The time course and characteristics of the tumor marker CASA (Cancer Associated Serum Antigen) during the menstrual cycle were analysed. We investigated whether hormonal influences in women and the score of this tumor marker ought to be considered in diagnosis. It could be demonstrated that CASA is not influenced by p...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00
abstract::We report on the case of a 19-year-old male with an alpha-fetoprotein (AFP)-producing acinar cell carcinoma of the pancreas. Tumour markers other than AFP were normal. Because of inoperability, a combined radiochemotherapy was initiated with a hyperfractionated dose of 44.8 Gy. Initially, the tumour showed a good resp...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2005-05-01 00:00:00
abstract:BACKGROUND:Hyperbaric oxygen (HBO) seems to intensify the effect of ionising radiation. We investigated whether HBO combined with irradiation decreases the capability of U251 glioblastoma cells for relapse and metastasis. MATERIALS AND METHODS:Cells were treated with O2 at 1.3 bar and then irradiated with 2 Gy photons...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2015-04-01 00:00:00
abstract:AIM:To evaluate the role of radiotherapy alone or combined with chemotherapy in the treatment of recurrent vulvar cancer, emphasising the prognostic factors and outcomes. MATERIALS AND METHODS:Twenty women with loco-regional recurrence of vulvar carcinoma were retrospectively reviewed. Eleven patients were managed wit...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2003-05-01 00:00:00
abstract:BACKGROUND/AIM:Cold atmospheric plasma (CAP) attenuates tumor cell proliferation and induces apoptosis in various cell lines. While exerting marginal effects on non-neoplastic cells this unfolds promising applications in cancer therapy. The aim of the study was to analyse the effects of different CAP sources and applic...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.11968
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:Protein kinase C (PKC) activity is increased and gap junctional intercellular communication (GJIC) is decreased frequently in Ras-transformed cells. We investigated the roles of Ras and PKC in the deficient gap junctional intercellular communication (GJIC) of K-ras-transformed E9 mouse lung carcinoma cells. ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1998-11-01 00:00:00
abstract::Human papillomaviruses (HPVs) express various proteins which have been proven to interact with some cellular functions playing a role in cell cycle progression and differentiation. Therefore, these viral gene products might be candidates for interfering with IFN-mediated antiproliferative actions. Condyloma biopsies f...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract::To evaluate the association and interaction of genotypic polymorphism the gene for DNA-apurinic/apyrimidinic endonuclease (APEX1) with personal smoking habit and lung cancer risk in Taiwan, the polymorphic variants of APEX1, Asp(148)Glu (rs1130409), were analyzed in association with lung cancer risk, and their joint e...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2013-06-01 00:00:00
abstract:AIM:The evaluation of toxicity after high-dose-rate interstitial brachytherapy (HDR-ISBT) as monotherapy for localized prostate cancer. MATERIALS AND METHODS:We analyzed early and late toxicities in 100 patients treated by HDR-ISBT as monotherapy at the National Hospital Organization Osaka National Hospital using both...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2014-04-01 00:00:00
abstract::A relationship was established between estradiol 16 alpha-hydroxylation, papillomavirus and its malignant sequelae. In this study, we determined that 16 alpha-hydroxylation was substantial in normal larynx and further increased in laryngeal papillomas. Estradiol or 16 alpha-hydroxyestrone stimulated proliferation in b...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1993-03-01 00:00:00
abstract::Cytotropic heterogeneous molecular lipid (CHML), which is a new anticancer agent with US patent number 5,260,067, has recently been shown to suppress tumor cell growth in multiple tumor lines and induce apoptosis in vitro (1). These results indicate that CHML may be an effective antitumor agent. In the present study, ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2001-07-01 00:00:00
abstract::The distribution of receptors for estradiol (ER), progesterone (PgR) and androgens (DHTR) in 104 primary and 49 metastatic breast tumours from Indian women is herein being reported for the first time. When compared to reports in the literature, a lower percentage (47%) of ER (+) tumours and a higher percentage (49%) o...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1984-11-01 00:00:00
abstract:UNLABELLED:Backgroud: Helicobacter pylori (Hp) rarely proliferates in patients with fundic gland polyps (FGPs). We recently found that FGPs express lysozyme, one of the natural defence substances against infection. We aimed to assess the degree of lysozyme expression in a cohort of consecutive FGPs. MATERIALS AND METH...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2010-03-01 00:00:00
abstract::Bone only metastasis in patients with estrogen receptor (ER) positive breast cancer reported to have favorable response to chemotherapy, favorable prognosis, and an "indolent" course. Therefore, we assessed the ability of MG-63 osteoblast-like human osteosarcoma cells (MG-63 cells) and MG-63 conditioned media (CM) to ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1998-11-01 00:00:00
abstract:BACKGROUND/AIM:Despite an expected prognostic disadvantage for upper tract versus lower tract metastatic urothelial carcinomas (UTUC/LTUC), only few studies have been conducted to elucidate potential differences in chemotherapy treatment. PATIENTS AND METHODS:A post-hoc subgroup analysis of a non-interventional study ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:10.21873/anticanres.12098
更新日期:2017-11-01 00:00:00
abstract:BACKGROUND:The efficacy of positron emission tomography with 18F fluoro-2-deoxy-D-glucose (FDG-PET) is obscure in evaluating viability or the extent of colorectal hepatic metastasis (CHM), down-staged by chemotherapy. PATIENTS AND METHODS:A retrospective lesion-by-lesion analysis was performed for seven consecutive pa...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2006-11-01 00:00:00
abstract::We assessed the prognostic value of the local tumor characteristics inflammatory stromal reaction (ISR) and vascular space invasion (VSI) together with established prognostic criteria, in cervical cancer patients. One hundred and forty-two patients with carcinoma of the cervix stage IB to IIB undergoing radical hyster...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1994-09-01 00:00:00
abstract::The identification of new prognostic parameters in Superficial Transitional Cell Carcinoma of the Bladder (STCCB) is important since conventional methods are often insufficient for prognostic purposes. We studied the proliferation activity and the DNA ploidy status of 60 pTa and pT1 Superficial Transitional Cell Carci...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1997-01-01 00:00:00
abstract::Para-aminobenzoic acid (PABA) has been previously reported as being an inhibitor of DDP toxicity, and its use did not result in any observable loss in antitumor activity of DDP. The following studies investigated the effect of PABA on the pharmacokinetics and urinary excretion of cis-diamminedichloroplatinum(II) (DDP)...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract:BACKGROUND:The area under the curve (AUC) of free carboplatin, is a major determinant of toxicity and response. A conventional pharmacokinetic study to determine AUC requires frequent blood sampling. One strategy for overcoming this problem is to apply a limited sampling model (LSM). MATERIALS AND METHODS:We developed...
journal_title:Anticancer research
pub_type: 临床试验,杂志文章
doi:
更新日期:1997-11-01 00:00:00
abstract::We present a new approach towards the detection of the mRNAs in formalin-fixed, paraffin-embedded samples using a reverse transcriptase (RT)-polymerase chain reaction (PCR). The total RNAs were extracted from 10-micron-thick sections and were reverse-transcribed, then the RT-products were subjected to PCR amplificatio...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2003-05-01 00:00:00
abstract:BACKGROUND:Parathyroid hormone-related protein (PTHrP) is a key regulator of osteolytic metastasis of breast cancer (BC) cells, but its targets and mechanisms of action are not fully understood. This study investigated whether/how PTHrP (1-34) signaling regulates expression of vascular endothelial growth factor (VEGF) ...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2010-07-01 00:00:00
abstract::Cytotoxic efficacy of anticancer drugs has been widely studied with monolayer-cultured cancer cells. However, the drug efficacy under two-dimensional (2D) culture conditions usually differs from that of three-dimensional (3D) culture conditions. In the present study, an in vitro tumor tissue model was constructed by s...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2015-12-01 00:00:00
abstract::The tumour samples ot 23 patients (9 male, 14 female, aged 28-85) were randomly selected for the study. DNA was isolated from paraffin embedded tissue for quantitative dot-blot hybridization, in order to determine the amplification values for the c-myc and K-ras oncogenes. The clinical and histological parameters stud...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2001-01-01 00:00:00
abstract::D-penicillamine (PSH) is a copper chelator that generates hydrogen peroxide and inhibits neovascularization. As hydrogen peroxide is toxic to some tumor cells and to blood vessels, we reasoned that PSH plus copper would inhibit tumors in vivo and in vitro. To test this hypothesis, we first incubated murine J558L plasm...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1996-05-01 00:00:00
abstract:AIM:To determine the predictive value of HIF-1α and VEGF-C in primary neuroendocrine breast cancers (NEBC) and their correlation with other clinico-pathological characteristics of NEBC. MATERIALS AND METHODS:HIF-1α and VEGF-C were determined immunohistochemically in tissue samples from 31 cases of NEBC. RESULTS:The H...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2012-12-01 00:00:00
abstract:BACKGROUND/AIM:Although insulin-like growth factor-1 (IGF-1) is well-implicated in cancer biology, the potential roles of IGF-1 variants in different types of cancer are largely unknown. The aim of the present study was to in vitro characterize several human cancers for their IGF-1 variant expression patterns. MATERIA...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2015-01-01 00:00:00
abstract::A 67-year-old man presented with leg edema. Laboratory data showed elevated blood glucose and carbohydrate antigen (CA) 19-9 levels, and anemia. Further imaging studies revealed a relatively clear-margined tumor totally occupying the main pancreatic duct (MPD) from the head to the tail of the pancreas (maximum diamete...
journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:2010-11-01 00:00:00