Abstract：
BACKGROUND:Previous reports indicate that the p53 yeast functional assay is a highly sensitive method of detection of p53 mutations in clinical specimens. Our earlier report (1) showed a 35.4% p53 mutation frequency in Hong Kong colorectal carcinoma (CRC) patients, when conventional molecular screening techniques were utilized to assess the mutation rate in the hot spots in exons 5-8. MATERIALS AND METHODS:The yeast functional assay was used to determine if the previous mutation frequency determined by PCR-SSCP techniques was under-estimated, and if so, to see if other hot spots for mutations explain this difference. RESULTS:The p53 functional yeast assay results showed an increased mutation frequency. However, sequencing showed the mutations were confined to common hot spots for mutations in exons 6 and 7. CONCLUSIONS:The mutation frequency in CRC patients observed with the yeast assay is higher than previously reported. Forty-five percent of 20 SSCP-negative specimens were positive by the yeast assay, which this study shows is superior for detection of p53 mutations directly in clinical specimens containing varying amounts of normal tissue contamination.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Leung CS,Lung MLsubject
Has Abstractpub_date
1999-01-01 00:00:00pages
625-8issue
1Aeissn
0250-7005issn
1791-7530journal_volume
19pub_type
杂志文章abstract：:An unselected series of 19 colorectal adenocarcinomas obtained from patients treated by surgery at Memorial Sloan-Kettering Cancer Center (MSKCC), New York, USA was investigated for mutations in exons 5, 6, 7 and 8 of the p53 gene. Ten of the tumors revealed at least one somatic mutation either in the exon 5 or 8. Two...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-09-01 00:00:00
abstract：:Telomeres, the tandem-repeated hexamers at the termini of mammalian chromosomes, form protective complexes in association with specific proteins that together with telomerase, a specialised telomere-synthesizing enzyme, regulate telomere length. Telomere shortening is associated with cellular senescence and is implica...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2005-07-01 00:00:00
abstract：:Tumour growth curve experiments play an important role in experimental oncology and established methods exist for their unbiased interpretation. However, many authors till introduce systemic biases to their data by using the so-called "relative tumour size" transformation, inspite of wide awarance about the limitation...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-03-01 00:00:00
abstract：BACKGROUND:To study the neuropathology and selected tumour markers of malignant gliomas, an animal glioma model was developed using the implantation of human glioblastoma clone U87 into rat brains. MATERIALS AND METHODS:The U87 cell suspension, or precultured U87 tumour spheroids, were inoculated into the brain of 4-w...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-07-01 00:00:00
abstract：BACKGROUND:Despite having disseminated cancer, not all patients are eligible for palliative chemotherapy or targeted therapies. AIM:To study reasons for withholding palliative chemotherapy, to survey which alternatives were offered and to study survival outcomes. MATERIALS AND METHODS:Medical records of 346 patients ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-12-01 00:00:00
abstract：:An in vitro cell line (HT 58) has been established from a human (B) NHL xenograft. The lymphoma cells in culture retained their lymphoblastic appearance, DNA-content, IgM/lambda monoclonality and many immunophenotypic markers. The clonal chromosomal abnormalities involved the chromosomes 1, 2, 3 and 14. The cells expr...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1991-07-01 00:00:00
abstract：:The mouse/human chimeric antibody Ch F11-39, recently generated by ourselves, shows the same high specificity and affinity for carcinoembryonic antigen (CEA) as those of its parental mouse monoclonal antibody. Ch F11-39 is capable of mediating antibody-dependent cell-mediated cytotoxicity (ADCC) with human peripheral ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:Thirty-five (34 evaluable) consecutive postmenopausal women with estrogen receptor positive (greater than or equal to 10 fmol/mg) or unknown advanced breast cancer were treated with high dose toremifene in a phase II study. All patients had progressed during prior adjuvant or palliativ antiestrogen treatment. The dose...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章
doi：
更新日期：1991-03-01 00:00:00
abstract：PURPOSE:Despite more than four decades of fluoro-pyrimidine treatment in different cancers, the optimal schedule is still not known. The plasma half-life of 5-fluorouracil (5-FU) is extremely short and continuous infusion has gained popularity. In this study we explored whether repeated bolus 5-FU injections could impr...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章
doi：
更新日期：2003-03-01 00:00:00
abstract：:In human colorectal tissue samples, the gene expressions of 4 coactivators, p300, pCAF, TIF-2 and TRAP 220, and 7 corepressors, N-CoR, REA, MTA1, MTA1L1, HDAC1, HDAC2 and HDAC3, linked to estrogen receptors (ER), were revealed by traditional RT-PCR. Cofactors ERalpha, ERbeta and ERRalpha mRNA levels were then measured...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-11-01 00:00:00
abstract：BACKGROUND:Ribonucleotide reductase composed of the hRRM1 and hRRM2 subunits catalyzes the conversion of ribonucleotides to their corresponding deoxy forms for DNA replication. Anti-hRRM2 siRNA degrades hRRM2's mRNA and suppresses tumorigenesis. A Phase I clinical trial demonstrated its therapy potential. HN-1 represen...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2012-11-01 00:00:00
abstract：BACKGROUND/AIM:In the last years, the use of Image Guided Stereotactic Radiotherapy (IG-SBRT) in patients with metastatic prostate cancer has increased. In this study, we aimed to assess the role of IG-SBRT in terms of local control and safety in patients with metastatic prostate cancer. MATERIALS AND METHODS:Primary ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12572
更新日期：2018-05-01 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：BACKGROUND:Carcinoma of the ampulla of Vater is an infrequent tumor that can be diagnosed, early. PATIENTS AND METHODS:Twenty-four patients with histologically proven carcinoma of the ampulla of Vater were retrospectively studied and their data were analyzed. RESULTS:Most common presenting symptoms were jaundice (67%...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
abstract：:Small cell lung cancer (SCLC) is highly sensitive both to radiotherapy and chemotherapy. Given its high chemo sensitivity, even two decades ago, SCLC was one of the first malignancies deemed suitable for maximising the dose and dose intensity with the support of autologous bone marrow (ABMT). On the whole, results wer...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2002-11-01 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：BACKGROUND/AIM:Bone metastases are associated with increased morbidity and poor prognosis in a variety of cancers. The present study investigated the effects of targeted radionuclide therapy with α-emitting, bone-seeking radium-224 (224Ra) on osteolytic bone metastasis of MDA-MB-231(SA)-GFP human breast cancer cells in...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12432
更新日期：2018-04-01 00:00:00
abstract：BACKGROUND/AIM:Activation of the c-JUN N-terminal kinase (JNK) signaling pathway has been associated with poor survival of ovarian cancer patients, but the role(s) and significance of JNK signaling in ovarian cancer cells remain poorly understood. In the present study, we aimed to investigate the role of JNK specifical...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-09-01 00:00:00
abstract：:The influence of cytostatically active alkyllysophospholipid analogs with different chemical structure on IP3 (inositol-1,4,5-trisphosphate) formation and intracellular Ca++ concentration was studied in human mammary epithelial cells before and after transfection with v-erb B oncogene DNA. Transformed cells showed an ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1995-03-01 00:00:00
abstract：BACKGROUND/AIM:HER2-positive breast cancers eventually relapse in about one third of patients. Is anti-HER2-directed therapy with Herceptin® (trastuzumab) effective in re-treatment? Between 2008 and 2018, 216 patients with recurrent HER2-positive breast cancer (BC) were re-treated with Herceptin (HER) during first-line...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14390
更新日期：2020-07-01 00:00:00
abstract：UNLABELLED:The aim of the present study was to investigate hypoxia-inducible factor 1α (HIF-1α) and glucose transporter-1 (GLUT-1) expressions as predictors of response and survival after chemoradiotherapy in pretreatment biopsy specimens from patients with rectal cancer. MATERIALS AND METHODS:The immunohistological e...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-05-01 00:00:00
abstract：BACKGROUND/AIM:Glioblastoma multiforme (GBM) is a malignant primary brain tumor with high rates of recurrence. This study aimed to investigate the effect of repurposed drug combinations on GBM. MATERIALS AND METHODS:Viability of U87 MG and 11ST patient-derived GMB cell lines, after valproic acid, tranylcypromine or ri...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13099
更新日期：2019-01-01 00:00:00
abstract：:Cancer cells are known to shed extracellular membrane vesicles both in vitro and in vivo. To analyse their possible involvement in the metastatic behaviour of tumours, we measured the Matrigel invasion capability and amounts of vesicles shed by four human tumour cell lines (8701-BC, MCF-7, MDA-MB-231 and HT-1080), and...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-09-01 00:00:00
abstract：:The present study assessed the immunohistochemical expression of ras p21 oncoprotein in 41 cases of benign and cancerous lesions of the prostate gland and correlated p21 expression with survival of patients operated for prostate cancer. Our results show that p21 is detected in both categories of patients, the expressi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-09-01 00:00:00
abstract：:Due to its diagnostic application, consideration was given to the therapeutic potential of 131I-MIBG in neural crest tumours, mainly in malignant pheochromocytomas, paragangliomas, neuroblastomas (NB), carcinoids and medullary thyroid carcinomas (MTC). The therapeutic procedure consists of a) thyroid blockade; b) admi...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：1997-05-01 00:00:00
abstract：:Prophylactic cranial irradiation (PCI) is still an open question despite the fact that ten randomized trials have been published in the past, addressing its impact on overall survival, disease-free survival and incidence of brain recurrences. The majority of these trials allow us to conclude that PCI is only useful in...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：1994-01-01 00:00:00
abstract：:Dedifferentiated liposarcoma (DDLS) is a malignant adipocytic tumor showing transition from an atypical lipomatous tumor (ALT)/well-differentiated liposarcoma (WDLS) to a non-lipogenic sarcoma of variable histological grades. We present the immunohistochemical, cytogenetic, and molecular cytogenetic findings of DDLS a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-01-01 00:00:00
abstract：BACKGROUND:Basal cell carcinomas (BCCs) are the most common cutaneous tumors, accounting for approximately 70% of all malignant skin tumors. A morphometric analysis was performed to evaluate whether morphometric parameters of the nuclei of BCC tumor cells may serve as predictors for biological behavior like recurrence ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-05-01 00:00:00
abstract：BACKGROUND:Matrix metalloproteinases (MMPs) are involved with tumour invasion and metastasis. Controversial data exists concerning the prognostic value of MMP-9 in breast carcinoma. We examined, here, whether the MMP-9 immunoreactive protein would correlate with--the prognosis in breast carcinoma treated with hormonal ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-11-01 00:00:00
abstract：:Mast cells are frequently found in close proximity to blood vessels and have been implicated in tumour angiogenesis. The aim of the present ultrastructural study was to characterize, in detail, the mutual association between mast cells and microvasculature in 9 cases of advanced gastric carcinoma. Perivascular mast ce...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-07-01 00:00:00
