Abstract：
:The photodynamic effects of sulphonated aluminium phthalocyanine (SALPC) have been compared on cultured AR4-2J cells of a pancreatic carcinoma cell line and on exocrine cells of the normal phenotype freshly isolated from the rat pancreas; a multi-channel perifusion system was used for this kinetic study in vitro. Whereas light alone or SALPC alone was without effect on either cell type, photon activation of cellularly-bound SALPC with light greater than 570 nm permeabilised the cells and caused an increase in amylase secretion from normal acinar cells but a dose-dependent inhibition (10(-7) to 10(-5) M) of amylase release from AR4-2J cells. In contrast, direct permeabilisation of the plasma membrane with digitonin, 10 micrograms ml-1, evoked a marked release of amylase from both types of cell. Elevation of [Ca2+]i by the ionophore A23187, 10(-6) M, elicited secretion of amylase from normal cells but had little effect on AR4-2J cells. Finally, it was established that the differential photodynamic effects of SALPC on amylase release were not attributable to any topographical differences in the microanatomical organisation of normal or tumour-derived cells; furthermore, the structural integrity of normal and AR4-2J cells was maintained after the photodynamic action of SALPC. It is concluded that the generation of singlet oxygen is responsible for permeabilisation of both types of cell and that photon-activated SALPC has functionally distinct effects on the constitutive secretion of amylase of tumour cells and the regulated secretory pathway of normal cells. These observations may be important in the development of drugs with a selective photodynamic action on pancreatic tumour cells.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Matthews EK,Cui ZJdoi
10.1038/bjc.1990.157subject
Has Abstractpub_date
1990-05-01 00:00:00pages
695-701issue
5eissn
0007-0920issn
1532-1827journal_volume
61pub_type
杂志文章abstract：:Lower pre-chemotherapy night time cortisol excretion predicted more severe cisplatin induced nausea and vomiting in 42 ovarian cancer patients receiving ondansetron as a single antiemetic agent. Dexamethasone administration added to the antiemetic effect of ondansetron principally in patients who had low excretion of ...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1038/bjc.1993.295
更新日期：1993-07-01 00:00:00
abstract：:Records of approximately 310,000 patients admitted to the 10 hospitals in Botswana between 1960 and 1972 have been studied and details of 1445 patients with malignant tumours abstracted. For the 894 tumours for which there was some supporting evidence--at best histological proof and minimally a clinical description of...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1975.138
更新日期：1975-07-01 00:00:00
abstract：:To distinguish risk factors for acquisition of cervical human papillomavirus (HPV) infection from the determinants of neoplasia among infected individuals we have conducted a three-arm case-control study nested within a large population-based cohort of women (the Manchester cohort) screened for HPV at entry using L1 c...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.2000.1523
更新日期：2000-12-01 00:00:00
abstract：:Extramammary Paget's disease is a particular form of skin cancer of unknown histogenesis. To look for the genetic defects underlying the pathogenesis of this tumour, we have examined loss of heterozygosity (LOH), p53 and human papillomavirus (HPV) status, and the expression of c-erbB-2 and bcl-2 proteins in 14 cases. ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1997.482
更新日期：1997-01-01 00:00:00
abstract：BACKGROUND:Subgroup analyses of clinical studies suggest that bevacizumab plus XELOX is effective and tolerable in elderly patients with metastatic colorectal cancer (mCRC). The prospective BECOX study examined the efficacy and safety of bevacizumab plus XELOX, followed by bevacizumab plus capecitabine in elderly patie...
journal_title：British journal of cancer
pub_type： 杂志文章,多中心研究
doi：10.1038/bjc.2014.346
更新日期：2014-07-15 00:00:00
abstract：:Primary liver cancer, predominantly consisting of hepatocellular carcinoma (HCC), is one of the most common and aggressive human malignancies worldwide. MicroRNAs (miRNAs) are a class of small non-coding RNAs that regulate gene expression post-transcriptionally. Emerging evidence indicates that miRNAs are often deregu...
journal_title：British journal of cancer
pub_type： 杂志文章,评审
doi：10.1038/sj.bjc.6606010
更新日期：2011-01-18 00:00:00
abstract：:Apoptosis plays an important role in tumorigenesis. Tumour growth is determined by the rate of cell proliferation and cell death. We counted the number of apoptotic cells in haematoxylin and eosin (H&E)-stained tumour sections in series of 172 grade I and II invasive breast cancers with long-term follow-up. The number...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.1999.0928
更新日期：2000-01-01 00:00:00
abstract：:To investigate the association between medullary carcinoma of the thyroid (MCT) and carcinoembryonic antigen (CEA), we assayed 78 sera from patients with thyroid diseases for CEA, employing the radioimmunoassay of double antibody technique. All 13 sera from patients with MCT had high levels of CEA, ranging from 14 to ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1976.133
更新日期：1976-08-01 00:00:00
abstract：:The endocrine effects of 125 mg (low dose) aminoglutethimide (AG) twice daily (b.d.) were compared with those of 125 mg AG + 20 mg hydrocortisone (HC) b.d. in 23 and 45 postmenopausal patients with advanced breast cancer, respectively. The patients in each group were drawn from two separate populations, but the mean a...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1985.223
更新日期：1985-10-01 00:00:00
abstract：:The effect of the synthetic progesterone, megestrol acetate, on weight loss induced by both tumour necrosis factor alpha (TNF) as a model for the cachexia accompanying the acquired immunodeficiency syndrome and by a cachexia-inducing tumour (MAC16) has been studied in NMRI mice. Megestrol acetate was effective in prev...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1990.310
更新日期：1990-09-01 00:00:00
abstract：:Immunohistochemical localization of chondroitin sulphate and dermatan sulphate proteoglycans (PGs) was observed in 70 tumour tissues, using monoclonal antibodies 9A-2 and 3B-3 raised against core molecules obtained from chondroitin sulphate PG by chondroitinase ABC-treatment. They recognize a stub of delta Di-4S and d...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1988.12
更新日期：1988-01-01 00:00:00
abstract：BACKGROUND:Placental-site trophoblastic (PSTT) and epithelioid trophoblastic tumours (ETT) are the rarest malignant forms of gestational trophoblastic disease (GTD). Our prior work demonstrated that an interval of ≥48 months from the antecedent pregnancy was associated with 100% death rate, independent of the stage. He...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-019-0402-0
更新日期：2019-03-01 00:00:00
abstract：BACKGROUND:Previous studies on the effects of different prostate cancer treatments on quality of life, were confounded because patients were not comparable. This study examined treatment effects in more comparable groups. METHODS:From 2008-2011, 240 patients with localised prostate cancer were selected to be eligible ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2013.181
更新日期：2013-05-14 00:00:00
abstract：:The purpose of this study was to determine the maximum-tolerated dose of gemcitabine plus mitoxantrone in women with metastatic breast cancer (MBC) and to evaluate activity and toxicity of this combination in a phase II trial. Sixty-three patients with MBC, previously treated with chemotherapy including anthracycline ...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章
doi：10.1038/sj.bjc.6600780
更新日期：2003-02-24 00:00:00
abstract：:Oestrogen (RE) and progesterone (RP) cytosolic receptors have been studied in 59 clinically inflammatory tumours of the human breast. The results were compared to those obtained in a series of 496 operable tumours. A single saturating dose of oestradiol for RE and R 5020 for RP was used and the cut-off between negativ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1981.291
更新日期：1981-12-01 00:00:00
abstract：:Recombinant single-chain fragments (scFv) of the murine anti-MUC1 monoclonal antibody C595 have been produced using the original hybridoma cells as a source of variable heavy (V(H))- and variable light (V(L))-chain-encoding antibody genes. The use of the polymerase chain reaction (PCR), bacteriophage (phage) display t...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1997.434
更新日期：1997-01-01 00:00:00
abstract：BACKGROUND:There are currently two million cancer survivors in the United Kingdom, and in recent years this number has grown by 3% per annum. The aim of this paper is to provide long-term projections of cancer prevalence in the United Kingdom. METHODS:National cancer registry data for England were used to estimate can...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2012.366
更新日期：2012-09-25 00:00:00
abstract：BACKGROUND:Faecal immunochemical tests (FITs) have replaced guaiac-based faecal occult blood test (gFOBTs) in several colorectal cancer (CRC) screening programmes. We aimed to evaluate the benefits of this transition based on the Wallonia-Brussels-organised CRC screening programme. METHODS:A total of 1,569,868 individ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-020-0754-5
更新日期：2020-03-01 00:00:00
abstract：:The aim of the study is to assess the value of carbonic anhydrase isozyme IX (CA IX) expression as a predictor of disease-free survival (DFS) and disease-specific survival (DSS) in rectal cancer treated by preoperative radio- or chemoradiotherapy or surgery only. Archival tumour samples from 166 patients were analysed...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604949
更新日期：2009-03-24 00:00:00
abstract：BACKGROUND:Focal adhesion kinase (FAK) is overexpressed in a variety of cancers, such as breast, colon, prostate, ovary, and lung cancers. However, the mechanism by which extracellular matrix fibronectin stimulates lung cancer cell migration and invasion through FAK remains to be investigated. METHODS:The signalling p...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6605154
更新日期：2009-07-21 00:00:00
abstract：:Treatment failure in AML is often attributed to P-glycoprotein-associated multidrug resistance. However, the importance of increased DNA repair in resistant cells is becoming more apparent. In order to investigate the ability of the DNA repair inhibitor aphidicolin to modulate drug resistance, we continually exposed b...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.2000.1639
更新日期：2001-03-02 00:00:00
abstract：BACKGROUND:Dysplasia is a marker of cancer risk in Barrett's oesophagus (BO), but this risk is variable and diagnosis is subject to inter-observer variability. Cancer risk in BO is increased when chromosomal instability is present. Nucleotyping (NT) is a new method that uses high-resolution digital images of nuclei to ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2011.353
更新日期：2011-10-11 00:00:00
abstract：BACKGROUND:Robot-assisted radical prostatectomy (RARP) has been rapidly adopted without robust evidence comparing its functional outcomes against laparoscopic radical prostatectomy (LRP) or open retropubic radical prostatectomy (ORP) approaches. This study compared patient-reported functional outcomes following RARP, L...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2017.454
更新日期：2018-02-20 00:00:00
abstract：:Fibroblast growth factor receptor 3 (FGFR3) is one of four high-affinity tyrosine kinase receptors for the FGF family of ligands, frequently associated with growth arrest and induction of differentiation. The extracellular immunoglobulin (IgG)-like domains II and III are responsible for ligand binding; alternative usa...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6601249
更新日期：2003-10-06 00:00:00
abstract：:Although it is generally accepted that proteolytic degradation is an important mechanism used by malignant cells in the process of metastasis, comparatively little is known about the regulation of molecules responsible for proteolysis and how they become de-regulated during human tumour progression. Using a geneticall...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6690385
更新日期：1999-05-01 00:00:00
abstract：:Chemical structures of the sugar chains of various human alpha-fetoprotein (AFP) species with different affinity for Concanavalin A (Con A) and Lens culinaris agglutinin (LCA) were examined by pyridylamination of their oligosaccharides and stepwise exoglycosidase digestion. Using reversed-phase and size-fractionation ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1993.91
更新日期：1993-03-01 00:00:00
abstract：:We examined the expression of the midkine (MK) and alpha-fetoprotein (AFP) genes in 15 paired human specimens obtained from hepatocellular carcinoma (HCC) and the corresponding noncancerous regions of the same patients. A total of 14 HCC but none of the noncancerous specimens were positive for the MK mRNA. In contrast...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6601246
更新日期：2003-09-15 00:00:00
abstract：BACKGROUND:Uterine serous papillary carcinoma (USPC) is a biologically aggressive variant of endometrial cancer. We investigated the expression of Serum Amyloid A (SAA) and evaluated its potential as a serum biomarker in USPC patients. METHODS:SAA gene and protein expression levels were evaluated in USPC and normal en...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6605129
更新日期：2009-07-21 00:00:00
abstract：:Androgen receptor (AR) signalling drives neoplastic growth and therapy resistance in prostate cancer. Recent clinical data show that docetaxel combined with androgen deprivation therapy improves outcome in hormone-sensitive disease. We studied whether testosterone and AR signalling interferes with docetaxel treatment ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-020-01105-y
更新日期：2020-12-01 00:00:00
abstract：:'de novo' carcinogenesis has been advocated besides 'adenoma carcinoma sequence' as another dominant pathway leading to colorectal carcinoma. Our recent study has demonstrated that the distribution of brain (fetal)-type glycogen phosphorylase (BGP) positive foci (BGP foci) has a close relationship with the location of...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.2001.1824
更新日期：2001-06-01 00:00:00
