Abstract:
:Neural stem cells (NSC) are capable of differentiating toward neuronal, astrocytic, oligodendrocytic and glial lineages, depending on their spatial location within the central nervous system (CNS). Although, a lot of knowledge has been gained in the understanding of differentiation-specific signaling in hematopoietic (HSC) and mesenchymal (MSC) counterparts, the molecular mechanisms underlying lineage commitment in NSCs are just beginning to be understood. Furthermore, it is not well comprehended as to how the specification of one cell lineage can result in the suppression of parallel pathways in the NSCs. Thus, a thorough understanding of various signal transduction cascades activated via cytokines and growth factors, and the confounding effects of different CNS microenvironments are critically required to determine the full potential of NSCs. Our knowledge on the clonogenic ability, differentiation potential, and the inherent plasticity in both HSCs and MSCs may facilitate the understanding of lineage commitment in the NSCs as well. The information available from the marrow-derived stem cells may be extrapolated toward the similar signaling pathways in the neural precursors. From a number of previous studies, it is apparent that four distinctly different subsets of ligand-receptor superfamilies are involved in determining the fate of NSCs. These include 1) the transforming growth factor type-beta-1 (TGF-beta1) and bone morphogenetic protein (BMP) superfamily; 2) the platelet-derived and epidermal (PDGF/EGF) growth factors; 3) the interleukin-6, leukemia inhibitory factor, and ciliary neurotrophic factor (IL-6/LIF/CNTF) superfamily; and 4) the EGF-like Notch/Delta group of extracellular ligands. Ligand binding to the cell surface receptor activates the receptor's cytosolic catalytic domain and/or the receptor-associated protein-kinases, which in turn activate intracellular second messengers and different sets of transcription factors. Transcription factor oligomerization, nuclear localization, followed by their recognition of DNA elements, leads to the expression of lineage-specific genes. Association between different groups of transcription factors can also regulate their ability to transcriptionally activate different genes. The limited availability of coactivators and cosuppressors, which can sequester the transcription factor complexes toward or away from a specific gene locus, further adds to the complexity in the cross talk between different signaling cascades. Both concerted actions of temporally regulated signals and convergent effects of different signaling cascades can thus ultimately precipitate the phenotypic changes. It is beginning to be realized that in addition to the cytokines and growth factors, cell-to-cell and cell-to-extracellular matrix (ECM) interactions, are also important within the molecular scenario linked to both proliferation and differentiation of the stem cells. The cell surface molecules, which include cell adhesion molecules (CAMs), integrins, selectins, and the immunoglobulins, are well known to regulate HSC and MSC commitment within different tissue microenvironments and may have direct implications in understanding the NSC cell fate determination within different regions of the brain.
journal_name
Cancer Investjournal_title
Cancer investigationauthors
Mondal D,Pradhan L,LaRussa VFdoi
10.1081/cnv-200039679subject
Has Abstractpub_date
2004-01-01 00:00:00pages
925-43issue
6eissn
0735-7907issn
1532-4192journal_volume
22pub_type
杂志文章,评审abstract::CD147 is highly expressed on many tumor cells; its role for tumor invasiveness and metastasis has been deduced from its capacity to induce MMPs, i.e., MMP-1, -2, -3, and -9. However, in the murine B16 melanoma model, MMP-2/-9 expression occurs independent of CD147. To scrutinize the impact of CD147 on metastasis forma...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900802392675
更新日期:2009-03-01 00:00:00
abstract::The transforming growth factor beta 1 (TGF-beta1) is a multifunctional cytokine with several regulatory activities in tumor cells affecting growth, differentiation, and function. Alterations in gene expression, secretion, and regulation of TGF-beta1 may lead to a favorable environment for tumor development by angiogen...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900701600921
更新日期:2007-12-01 00:00:00
abstract::The overexpression of HER-2/neu and p53 has been associated with poor outcome in many neoplasms. Their role in patients with osteosarcoma is unclear. We studied the expression of HER-2/neu and p53 in 22 osteosarcoma samples (from 20 patients--2 had locally recurrent disease) biopsied at the University of Medicine and ...
journal_title:Cancer investigation
pub_type: 临床试验,杂志文章
doi:10.1081/cnv-120027577
更新日期:2004-01-01 00:00:00
abstract::Tumor-infiltrating leukocytes and other immunohistochemical parameters were evaluated in pretherapeutic biopsies and resection specimens in 73 patients undergoing neoadjuvant chemotherapy with doxorubicin and paclitaxel. Ten patients with pathological complete response had significantly higher p53 expression, CD3(+) l...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900802098165
更新日期:2008-12-01 00:00:00
abstract::Soft tissue sarcomas are generally resistant to most chemotherapeutic agents, and individuals with advanced disease have a poor prognosis. We evaluated amonafide, a new drug that has significant activity against several tumor cell lines, to determine its activity against sarcomas. Amonafide was administered to 18 pati...
journal_title:Cancer investigation
pub_type: 临床试验,杂志文章,多中心研究
doi:10.3109/07357909409038230
更新日期:1994-01-01 00:00:00
abstract::Neurological paraneoplastic syndromes are exceedingly rare, and often difficult to recognize clinically. Paraneoplastic achalasia is a condition characterized by new-onset dysphagia that is unrelated to tumor burden, most often due to the development of auto-immune antibodies targeting esophageal tissue. Due to the ra...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2020.1852412
更新日期:2021-01-06 00:00:00
abstract::Decisive indulgence of angiogenesis requires a more holistic assessment and several in vivo assays have been developed that permit a more realistic appraisal of the angiogenic response. One of the most popular assays to study angiogenic activity is the chick chorioallantoic membrane (CAM). Although CAM assay is a vita...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900600894773
更新日期:2006-10-01 00:00:00
abstract:INTRODUCTION:A variable repertoire of coagulation protein expression is observed in different cancers. We evaluated expression of thrombin in prostate tissue. METHODS:Detection of thrombin was performed using quantitative real-time PCR in fresh tissue and in situ hybridization (ISH) in archival prostate tissue and by ...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2010.535057
更新日期:2011-01-01 00:00:00
abstract::Most current classifications of lymphoid neoplasms define the tumors based on the cell of origin, phenotype, genetic abnormalities, and clinical features. Here it is proposed that human lymphocytic tumors can be categorized based on the propensity and capacity of the tumor cells to undergo apoptosis. The first categor...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1081/cnv-120002951
更新日期:2002-01-01 00:00:00
abstract::Interferon alpha (IFN-alpha) has been shown to produce antitumor effects in 50-80% of carcinoid tumor patients and has demonstrated anti-proliferative effects in carcinoid tumor cells, but the mechanism is not well established. This study presents evidence that in a carcinoid tumor cell line, Bon1, IFN-alpha increases...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1081/cnv-120001180
更新日期:2002-01-01 00:00:00
abstract::Peroxiredoxins are thiol-specific antioxidant proteins that protect cells from ROS-induced cell death and are elevated in several cancers. We found that five of the six mammalian peroxiredoxins are overexpressed in MCF-7 breast cancer cells at the mRNA and protein levels, compared to noncancerous MCF-10A cells. Inhibi...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2013.802798
更新日期:2013-07-01 00:00:00
abstract::High-dose acetaminophen (HDAC) produces hepatocellular necrosis and cytotoxic changes in other tissues that express mixed-function-oxidase (MFO) activity. N-acetylcysteine (NAC), administered within 8 hr of HDAC exposure, replenishes reduced glutathione and prevents these effects. Numerous cell culture and animal stud...
journal_title:Cancer investigation
pub_type: 临床试验,杂志文章
doi:10.3109/07357909609012140
更新日期:1996-01-01 00:00:00
abstract::Abnormal p53 immunohistochemical pattern (p53-AP) including overexpression, complete absence and heterogeneity is surrogate of TP53 mutation. Using 742 cases of colorectal cancer (CRC), we show p53-AP is more common among type 2 diabetes (T2DM) patients than non-T2DM. Univariately, T2DM was significantly associated wi...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2020.1852411
更新日期:2021-01-01 00:00:00
abstract::Fingerprints from 200 women with histologically proven breast cancer (case group) were compared to fingerprints from 138 women with no history of any malignant disease (control group). Of the patterns analyzed, four were significantly associated with breast cancer: accidentals, transitionals, angled ulnar loops, and h...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357908809077025
更新日期:1988-01-01 00:00:00
abstract::A phase II trial of 5-fluorouracil (5-FU) [250-450 mg/m2/day x 5 days as an intravenous (IV) bolus] combined with calcium leucovorin (500 mg/m2/day x 5 1/2 days by continuous IV infusion) administered on a 28-day schedule was performed in 15 patients with advanced hepatocellular carcinoma. The median age was 58 years;...
journal_title:Cancer investigation
pub_type: 临床试验,杂志文章
doi:10.3109/07357909509024907
更新日期:1995-01-01 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::IL-5 is primarily a T-cell-derived cytokine that has multiple regulatory functions on eosinophils and (in the mouse) on antibody-secreting B cells. A complex network of cytokines appear to control transcription of the gene for IL-5 and its production. Abnormally high levels of this cytokine are associated with infecti...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357909309011681
更新日期:1993-01-01 00:00:00
abstract::Glioma stem cells (GSCs) play major roles in drug resistance, tumour maintenance and recurrence of glioblastoma. We investigated inhibition of the GTPase dynamin 2 as a therapy for glioblastoma. Glioma cell lines and patient-derived GSCs were treated with dynamin inhibitors, Dynole 34-2 and CyDyn 4-36. We studied abou...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2019.1582060
更新日期:2019-01-01 00:00:00
abstract::We studied the production of chemiluminescence (CL) by peripheral blood neutrophils from 24 normal subjects, 13 lung cancer patients with clinical stages (CS) III and IV, and 27 breast cancer patients with CS II, III, and IV. Evaluations were made before chemo- and radiotherapy treatments. CL was expressed as: baselin...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357909309011669
更新日期:1993-01-01 00:00:00
abstract::Enhanced proteolysis and altered tight junction (TJ) proteins associate with carcinoma invasion. We hypothesized that trypsin-2, a tumor-associated serine proteinase, induces tongue carcinoma invasion by activating pro-membrane type-1 matrix metalloproteinase (MT1-MMP) and disturbing the TJs. The effects of invasion w...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2012.716467
更新日期:2012-10-01 00:00:00
abstract::A small subset of cells in a patient with leukemia, termed leukemic stem cells (LSCs) have been shown to be responsible for the proliferation of disease. LSCs are thought to derive from normal hematopoietic stem cells, but are phenotypically distinguishable in that they are CD90(-), CD117(-), and CD123(+). Research in...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.3109/07357907.2012.700986
更新日期:2013-05-01 00:00:00
abstract::Achieving a cure for metastatic neuroblastoma remains a challenge despite sensitivity to chemotherapy and radiotherapy. Most patients achieve remission, but a failure to eliminate minimal residual disease (MRD) often leads to relapse. Immunotherapy is potentially useful for chemotherapy-resistant disease and may be pa...
journal_title:Cancer investigation
pub_type: 杂志文章,评审
doi:10.1080/07357900601130763
更新日期:2007-02-01 00:00:00
abstract::Ubiquitin ligase Cullin7 has been has been suggested to act as an oncogene in some tumors; however, the prognostic role of Cullin7 has not been evaluated in cancer patients. In this study, we observed that the expression of Cullin7 mRNA was significantly higher in epithelial ovarian cancer (EOC) compared with normal o...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2015.1114123
更新日期:2016-01-01 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::Macrophages in malignant pleural effusions (MPEs) demonstrate a promalignant phenotype. They release mediators, which are a source of inflammation within the pleura. We established in vitro model proving that pleural macrophages isolated from effusions affect cancer cells in their pro- or anti-apoptotic activity via h...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357907.2018.1477158
更新日期:2018-01-01 00:00:00
abstract::We observed that free bile acids (CA, DCA, and CDCA) inhibited the growth of cholangiocarcinoma cells by promoting cell apoptosis, while the conjugated bile acids (GCA, GDCA, and GCDCA) stimulated cell growth. Consistently, we found that GDCA stimulated tumor growth and CDCA decreased tumor growth in xenografted mice....
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.3109/07357907.2012.762781
更新日期:2013-02-01 00:00:00
abstract::Effect of advanced glycation end products (AGEs) in the pathogenesis of cancer could be diminished by interaction with soluble RAGE or by reducing AGE-precursors via glyoxalase I. Glu111Ala polymorphism of glyoxalase I gene, AGEs, and sRAGE serum levels were studied in 113 breast cancer patients and in 58 controls. Hi...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900802350822
更新日期:2009-07-01 00:00:00
abstract:BACKGROUND:Rapid and efficient symptom assessment is an important aspect of palliative care. The objective was to determine whether a smaller number of symptoms from the 32-item Memorial Symptom Assessment Scale Short-Form (MSAS-SF) could convey equivalent quality of life (QOL) information. METHODS:Responses from 479 ...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1081/cnv-200026487
更新日期:2004-01-01 00:00:00
abstract:OBJECTIVES:To evaluate the efficacy and toxicity of the combination of vinorelbine and interleukin (IL)-2 in patients with metastatic melanoma as second-line chemotherapy. PATIENTS AND METHODS:Twenty-two patients with histologically confirmed stage IV melanoma previously treated with temozolomide-based chemotherapy--o...
journal_title:Cancer investigation
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1081/cnv-200039630
更新日期:2004-01-01 00:00:00
abstract::Hand-Foot Syndrome (HFS) is commonly reported in treatment with liposomal doxorubicin (LD) and capecitabine. We present 3 cases of HFS recall with gefitinib after previous LD therapy. The first 2 cases, in patients with head and neck cancer previously treated with paclitaxel and LD, developed on subsequent therapy wit...
journal_title:Cancer investigation
pub_type: 杂志文章
doi:10.1080/07357900600814847
更新日期:2006-08-01 00:00:00