Abstract:
:It is believed that telomerase is a terminal effector and its role is to maintain the length of telomeres. However, the main rate-limiting subunit of telomerase, human telomerase reverse transcriptase (hTERT), has been recently proved to have the ability to affect a variety of other genes such as p53 independently of the decurtation of telomere. To test whether this extra-telomeric effect could contribute to additional and immediate alterations in cellular proliferation and apoptosis, three epithelial ovarian cancer cell lines (A2780 [wild-type p53], OVCAR3 [mutant p53], and SKOV3 [p53 null]) were treated with hTERT-targeted short-hairpin RNA (shRNA), and their short-term effects were evaluated. A very fast growth inhibiting response to downregulation of hTERT was observed in all three cell lines with S-phase arrest karyotypes. But apoptosis appeared only in A2780 and OVCAR3 cells with p53 accumulation and elevated p21. In contrast, a decrease in expression of p21 was observed in SKOV3 and cell death appeared to be unaffected. These results indicated for the first time that inhibition of hTERT could induce immediate growth arrest in human ovarian carcinoma cells by blocking them in S phase, but apoptosis may only be induced via extra-telomeric effects on activation of p53 and p21.
journal_name
Cancer Investjournal_title
Cancer investigationauthors
Luo Y,Yi Y,Yao Zdoi
10.3109/07357900802491451subject
Has Abstractpub_date
2009-12-01 00:00:00pages
960-70issue
10eissn
0735-7907issn
1532-4192pii
10.3109/07357900802491451journal_volume
27pub_type
杂志文章abstract::Drug resistance to TKIs and the existance of CML leukemia stem cells is an urgent problem. In this study, we demonstrate that quinacrine (QC) induces apoptosis in BCR-ABL positive CML and acute lymphoblastic leukemia (ALL) cells. Interestingly, QC inhibits the colony formation of primary CD34+ progenitor/stem leukemia...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2019.1630633
更新日期:2019-01-01 00:00:00
abstract::The immunotherapeutic effects of interleukin-1 alpha (IL-1 alpha) encapsulated within 1-5 microns-diameter poly (D, L-lactide) microspheres and delivered intratumorally into fibrosarcoma-bearing mice were investigated. Such microspheres are avidly taken up by macrophages, and directing IL-1 alpha into these cells may ...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1081/cnv-120023770
更新日期:2003-01-01 00:00:00
abstract::Cancer is a proficient evader of the immune system and is responsible for a high number of deaths annually. Most of these cancer cases are associated with genetic mutations, viruses, radiations or other carcinogenic substances like tobacco smoke. However, a significant number of cases arise as a result of infection by...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1080/07357907.2019.1662918
更新日期:2019-01-01 00:00:00
abstract::In the present study, we searched selective cytotoxicity and mitochondria mediated apoptosis of novel COX-2 inhibitor 2-(4-(Methylsulfonyl)phenyl)imidazo[1,2-a] pyridine-8-carboxylic acid on B-lymphocytes and their mitochondria isolated from normal subjects and acute lymphoblastic leukemia (ALL) patients' blood. Our r...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2020.1808898
更新日期:2020-09-01 00:00:00
abstract::In this study, we evaluated SEA-H61D, a staphylococcal enterotoxin A mutant without emetic activity, as an antitumor agent in vitro and in vivo. It showed that SEA-H61D could significantly inhibit the growth of many cancer cell lines in vitro at very low concentrations by activating human peripheral blood mononuclear ...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357900903286982
更新日期:2010-10-01 00:00:00
abstract::The scientific rationale to block angiogenesis as a treatment strategy for human cancer has been developed over the last 30 years, but is only now entering the clinical arena. Preclinical studies have demonstrated the importance of the vascular endothelial growth factor (VEGF) pathways in both physiologic and patholog...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1080/07357900500360024
更新日期:2005-01-01 00:00:00
abstract::Adjuvant and neoadjuvant chemotherapy is being used increasingly in the treatment of breast cancer patients. However, drug resistance plays an important role in the failure of chemotherapy in breast cancer. The aim of this study was to compare technetium-99m tetrofosmin (Tc-TETRO) mammoscintigraphic findings with the ...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1081/cnv-120001147
更新日期:2002-01-01 00:00:00
abstract::The standard staging evaluation of prostate cancer includes digital rectal examination, measurement of serum tumor markers, radionuclide bone scan, and abdominal pelvic computed tomography (CT) or nuclear magnetic resonance imaging (MRI). We retrospectively reviewed 300 cases of newly diagnosed, untreated adenocarcino...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357909509024892
更新日期:1995-01-01 00:00:00
abstract::Ammonium sulfate (AS) precipitation by consecutive steps at 10% to 50% saturation has been utilized for fractionation of cytoplasmic estrogen receptor (ER) and progesterone receptor (PgR). The highest percentage of both receptor activities are confined mainly in two fractions at AS saturation from 20% to 30% and 30% t...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357908909039842
更新日期:1989-01-01 00:00:00
abstract::Human mesenchymal stem cells (hMSCs) play an important role in the development of human cancers. In the present study, we observed that hMSCs promoted human prostate cancer (PCa) cell PC-3 growth in vivo and in vitro. The conditional medium of hMSCs promoted the proliferation, migration, and invasion of PC-3 cells. Th...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2012.692171
更新日期:2012-08-01 00:00:00
abstract::The response rate (RR) to single-agent chemotherapy with doxorubicin or ifosfamide in patients with advanced soft-tissue sarcoma (STS) is in the range of 20%. Paclitaxel is clinically useful in treating several solid tumors and has demonstrated activity in a series of human sarcoma cell lines. Twenty-eight patients wi...
journal_title:Cancer investigation
pub_type: 临床试验,杂志文章
doi:10.3109/07357909809011697
更新日期:1998-01-01 00:00:00
abstract::We have analyzed allelic loss of the short arm of chromosome 9 in 39 head and neck cancers using 13 polymorphic markers and found two deletions of hot spots at 9p21 and 9p24. Loss of heterozygosity was detected at least at one locus in 28 of 39 cases (71.8%). P16, a well-known tumor suppressor gene, is considered to b...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900802563010
更新日期:2009-07-01 00:00:00
abstract::Fulvestrant (Faslodex) is a new type of estrogen receptor (ER) antagonist that binds, blocks, and degrades the ER, leading to reduced expression of the progesterone receptor (PgR). Unlike the selective ER modulator tamoxifen, fulvestrant is devoid of any known agonist activity. Fulvestrant has a steroidal structure th...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1081/cnv-50480
更新日期:2005-01-01 00:00:00
abstract::A meta-analysis of 14 studies (16 cohorts) incorporating 1751 participants was performed to evaluate the correlation between baseline neutrophil-to-lymphocyte ratio (NLR) and outcome of immune checkpoint inhibitors (ICI). The pooled hazard ratio (HR) suggested elevated pretreatment NLR was associated with poor OS (HR:...
journal_title:Cancer investigation
pub_type: 杂志文章,meta分析
doi:10.1080/07357907.2019.1639057
更新日期:2019-01-01 00:00:00
abstract::Serum C-reactive protein (CRP), a sensitive marker of systemic inflammation, has been reported to be associated with the risk of a number of cancers including breast cancer. However, the results are inconsistent. To investigate the association between serum CRP levels and early breast cancer, we conducted a hospital-b...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2013.789898
更新日期:2013-05-01 00:00:00
abstract::Following is a review of altered fractionation in radiation therapy for head and neck cancer. The goals of altered fractionation are to increase local-regional control and/or reduce the risk of late complications. Altered fractionation schedules can be broadly classified as accelerated fractionation and hyperfractiona...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357909809032890
更新日期:1998-01-01 00:00:00
abstract::To study the efficiency of high-dose melphalan in previously untreated patients with advanced myeloma, we performed a Phase I-II trial. Twenty-eight patients were treated at dose level of 60-140 mg/m2. Each patient was first treated with a priming dose of cyclophosphamide (300 mg) followed by high-dose melphalen 1 wee...
journal_title:Cancer investigation
pub_type: 临床试验,杂志文章
doi:10.3109/07357909209032784
更新日期:1992-01-01 00:00:00
abstract::The microvasculature is a ubiquitous organ system having a major role in the pathogenesis of radiation damage to normal tissues. Although the kinetics of radiation damage to endothelial cells is similar to other tissues (as reflected by Do and Dq) the late effect is a manifestation of injury, not only to the endotheli...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357908909039849
更新日期:1989-01-01 00:00:00
abstract::The purpose of this study was to investigate whether the intelligence quotient (IQ) in children treated for leukemia decreases in the years following whole brain irradiation. Twenty-seven leukemic children were assessed following a mean time lapse between radiotherapy and IQ measurement of 9 years. The IQ test used wa...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1081/cnv-100104285
更新日期:2001-01-01 00:00:00
abstract::Enthusiasms into the application of PI3K-δ inhibitor CAL-101 has been muted due to the over-activation of compensatory molecules. Our results delineated that c-Myc suppression using 10058-F4 enhanced CAL-101 cytotoxicity in less sensitive cells through different mechanisms based on p53 status; while CAL-101-plus-10058...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2019.1651328
更新日期:2019-01-01 00:00:00
abstract::Pancreatic cancer is the fourth leading cause of cancer death with a 5-year survival less than 5 percent despite rigorous interventions. This largely is due to its late presentation, aggressive metastasis, and a lack of effective adjuvant therapies. Cytokines have been studied in many tumor types, where they have been...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1080/07357900600981398
更新日期:2006-11-01 00:00:00
abstract:BACKGROUND:Premenopausal women treated for early stage breast cancer (ESBC) are at risk for chemotherapy-related amenorrhea (CRA). Prospectively-validated, predictive markers of CRA are needed. PATIENTS AND METHODS:Premenopausal women with ESBC and planned chemotherapy (>/= 25% risk of amenorrhea) were evaluated. Foll...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900701829777
更新日期:2008-04-01 00:00:00
abstract::The study investigated the human cytomegalovirus (HCMV) and human papillomavirus (HPV) in gliomas. A retrospective study was conducted on 112 samples. HCMV was investigated by PCR, in situ hybridization (ISH) and immunohistochemistry. HPV was tested by PCR and DNA ISH. HCMV was identified in 60 gliomas, including 55 G...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2020.1793352
更新日期:2020-08-01 00:00:00
abstract::Cisplatin (CDDP) was administered to a 49-year-old dialysis female patient with advanced uterine cervical cancer. Analysis of the pharmacokinetics of CDDP in the patient with renal failure and at hemodialysis were compared with that of patients without renal impairment. CDDP at 30 mg was administered by drip infusion....
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357909109039874
更新日期:1991-01-01 00:00:00
abstract::Mucositis is a common and often serious acute morbidity when radiation is delivered to portals encompassing the oral cavity, pharynx, or esophagus. In an effort to minimize this side effect, the combination of sucralfate and fluconazole was prescribed to 40 patients. Half were given sucralfate, 1 g in suspension q.i.d...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357909509024890
更新日期:1995-01-01 00:00:00
abstract::Hospice programs do not identify burnout as a significant staff problem, even though there are many significant stressors for staff members doing hospice work. Hospices offer support in a wide variety of ways and settings through their human resources management. All this support is predicated on the assumption that t...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357909709039724
更新日期:1997-01-01 00:00:00
abstract::Expression of epidermal growth factor and its transmembrane receptor (EGFR) stimulates tumor growth. Matuzumab is a humanized anti-EGFR monoclonal antibody that blocks EGFR activation and downstream signaling, inhibits tumor growth, and provides a clinical benefit for some patients. The plasma half-life (6-10 days) an...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1080/07357900701511847
更新日期:2008-02-01 00:00:00
abstract::The aim of our study was to investigate the role of nerve growth factor (NGF) on the expression of the p73 protein in human ependymoblastoma (EP) and medulloblastoma (MB) cells. It was found that NGF exposure on MB cells blocks proliferation, as well as on EP cells and induces overexpression of p73. NGF reduces the nu...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900701205689
更新日期:2007-03-01 00:00:00
abstract::Lung cancer is the leading cause of cancer death worldwide and small cell lung cancer (SCLC) accounts for a significant proportion of all lung cancer cases. Even so, the underlying mechanism governing SCLC development remains poorly understood and SCLC related cancer death stands high despite decades of intensive inve...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2015.1006329
更新日期:2015-04-01 00:00:00
abstract::Autologous bone marrow transplantation (AuBMT) is an accepted treatment modality for patients with high-risk or relapsed hematological malignancies. Hepatotoxicity, in particular veno-occlusive disease (VOD), is a significant complication of this therapy. The purpose of this study was to determine the clinical relevan...
journal_title:Cancer investigation
pub_type: 临床试验,杂志文章
doi:10.3109/07357909509031914
更新日期:1995-01-01 00:00:00