Abstract:
:Optimal stimulation of signal transduction and biological functions by IGF-I in porcine smooth muscle cells (pSMC) requires ligand occupancy of the alphaVbeta3 integrin. Binding of heparin-binding domain (HBD) of vitronectin (VN) to the cysteine loop (C-loop) region of beta3 is required for pSMC to respond optimally to IGF-I stimulation. Mouse smooth muscle cells (mSMC), which express a form of beta3 whose sequence within the C-loop region is different than porcine or human beta3, do not respond optimally to IGF-I, and IGF-I stimulated beta3 and SHPS-1 phosphorylation which are necessary for optimal IGF-I signaling were undetectable. VN also had no effect on IGF-I stimulated the cell proliferation. In contrast, when human beta3 (hbeta3) was introduced into mSMC, there was an enhanced VN binding in spite of an equivalent amount of total beta3 expression, and IGF-I-dependent beta3, and SHPS-1 phosphorylation were detected. In addition, there was enhanced IGF-I-stimulated Shc association with SHPS-1, Shc tyrosine phosphorylation, Shc and Grb2 association, and MAP kinase activation leading to increased cell proliferation. These enhancements could be further augmented by adding a peptide containing the HBD of VN. To determine if these changes were mediated by the C-loop region of beta3, an antibody that reacts with that region of beta3 was utilized. The addition of the hbeta3 C-loop antibody abolished VN-induced enhancement of IGF-I signaling and IGF-I-stimulated cell proliferation. These results strongly support the conclusion that optimal SMC responsiveness to IGF-I requires ligand interaction with the C-loop domain of hbeta3.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Xi G,Maile LA,Yoo SE,Clemmons DRdoi
10.1002/jcp.21196subject
Has Abstractpub_date
2008-02-01 00:00:00pages
306-15issue
2eissn
0021-9541issn
1097-4652journal_volume
214pub_type
杂志文章abstract::A successful aging could be gained by life satisfaction, social functioning, or psychological resources and, definitely, by increasing resistance to diverse age-related pathologies. Nowadays, cancer can be considered an age-related disease since the incidence of most cancers increases with age, rising more rapidly beg...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.26825
更新日期:2018-11-01 00:00:00
abstract::Kaposi's sarcoma (KS) is the most frequent malignant lesion in patients with AIDS and is characterized by spindle cell proliferation, inflammatory cell infiltration, angiogenesis, edema, and invasiveness. KS origin is still debated. The complex aspect of this disease is probably supported by multiple concomitant patho...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/1097-4652(200008)184:2<246::AID-JCP13>3.0.
更新日期:2000-08-01 00:00:00
abstract::Growing evidence has shown that pulsed electromagnetic fields (PEMF) can modulate bone metabolism in vivo and regulate the activities of osteoblasts and osteoclasts in vitro. Osteocytes, accounting for 95% of bone cells, act as the major mechanosensors in bone for transducing external mechanical signals and producing ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27734
更新日期:2019-07-01 00:00:00
abstract::The transport of L-alanine in human diploid fibroblasts was investigated. Transport measurements were performed on subcultures between the third and eighth passages with subconfluent cells growing on glass coverslips. Kinetic analysis of approximate initial rates of transport at substrate concentrations from 0.05 to 1...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041090105
更新日期:1981-10-01 00:00:00
abstract::The purpose of this study was to evaluate the anti-head and neck squamous cell carcinoma (anti-HNSCC) cell activity by C6 ceramide and multikinase inhibitor PKC412. Experiments were performed on HNSCC cell lines (SQ20B and SCC-9) and primary human oral carcinoma cells. Results showed that PKC412 inhibited HNSCC cell p...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26831
更新日期:2018-12-01 00:00:00
abstract::This study sought to evaluate the prospective role exerted by vascular endothelial growth factor (VEGF) in the modulation of nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) signalling pathways in the rabbit retina. To reach this aim, the anti-VEGF agents aflibercept and ranibizumab were used as ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28462
更新日期:2019-08-01 00:00:00
abstract::Alkaptonuria (AKU) is a rare genetic disease that affects the entire joint. Current standard of treatment is palliative and little is known about AKU physiopathology. Chondroptosis, a peculiar type of cell death in cartilage, has been so far reported to occur in osteoarthritis, a rheumatic disease that shares some fea...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24850
更新日期:2015-05-01 00:00:00
abstract::The simultaneous exposure of WI-38 human fibroblasts (HF) to a heat shock (45 degrees C, 30 min) and an alkaline shift (> or = pH 8.0) in the incubation medium increased and extended the expression of heat shock proteins (hsps). Hsp70 was the most prominent inducible hsp synthesized during the recovery phase after the...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041620304
更新日期:1995-03-01 00:00:00
abstract::Several studies have shown that interleukin-4 (IL-4) down-regulates synthesis of prostaglandin E2 (PGE2). We evaluated the mechanisms for this suppression in human alveolar macrophages (HAMs). Normal HAMs were obtained from healthy nonsmoking volunteers. The cells either remained unstimulated, or were exposed to 10 mi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041650110
更新日期:1995-10-01 00:00:00
abstract::The development of resistance accounts for therapy failure in the majority of advanced cases of neuroblastoma in children. A new transplantable murine C-1300 neuroblastoma cell line was developed in vitro, by repeated exposure of a sensitive cell line to increasing, but sublethal, doses of Homoharringtonine (HHT). The...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041480319
更新日期:1991-09-01 00:00:00
abstract::A mutant (A204) of Chinese hamster ovary cells (CHO-K1), which is deficient in dihydroorotate (DHO) dehydrogenase (E.C. 1.3,3.1) activity, has been isolated by a replica plating procedure. The mutant does not show a requirement for exogenously added pyrimidines. Examination of intact cells shows that the mutant accumu...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040980304
更新日期:1979-03-01 00:00:00
abstract::Cardiac progenitor cells (CPCs) have the potential to differentiate into several cell lineages with the ability to restore in cardiac tissue. Multipotency and self-renewal activity are the crucial characteristics of CPCs. Also, CPCs have promising therapeutic roles in cardiac diseases such as valvular disease, thrombo...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.28738
更新日期:2019-11-01 00:00:00
abstract::Schizophrenia (SZ) is characterized by a high morbidity and disability rate and has gradually increased in rate and caused much burden. However, the pathogenesis of SZ is elusive and may include changes in the biological molecules in exosomes. In this study, we first compared the alterations of plasma exosomal circula...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29873
更新日期:2021-01-01 00:00:00
abstract::Insulin-like growth factor-I receptor (IGF-IR) is often overexpressed in malignant tumors, and is involved in the establishment and maintenance of malignant phenotypes. Tyrosine kinase receptor endocytosis is commonly triggered by ligand binding and occurs via clathrin-coated vescicles that transfer the receptor to th...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20670
更新日期:2006-08-01 00:00:00
abstract::Fibroblast growth factors (FGFs) are important regulators of the dynamic development and turnover of tissues. Among FGF receptors, FGFR3 expression is confined in the intestinal crypts. We examined FGFR3-deficient mice and saw increased intestinal crypt depth but no change in villae length or in the distribution of di...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21401
更新日期:2008-07-01 00:00:00
abstract::Mesenchymal stem/stromal cells (MSCs) have gained considerable popularity owing to the vast possibilities and lack of ethical constraints and risks normally associated with other stem cells, such as embryonic stem cells. However, they are morphologically indistinguishable from fibroblasts. This review aims to assess t...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.26860
更新日期:2018-12-01 00:00:00
abstract::We report the continuous growth maintenance of untransformed and chemically transformed fibroblasts (AKR-2B, AKR-MCA cells) in low concentrations of serum (0.1% FBS). The cell lines established (AKR-0.1F, MCA-0.1F) proliferated at rates comparable to cells maintained under high serum conditions (10% FBS). Complete rem...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041380303
更新日期:1989-03-01 00:00:00
abstract::Hair follicle stem cells (HFSCs) are able to differentiate into neurons and glial cells. Distinct microRNAs (miRNAs) regulate the proliferation and differentiation of HFSCs. However, the exact role of miR-124 in the neural differentiation of HFSCs has not been elucidated. HFSCs were isolated from mouse whisker follicl...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27563
更新日期:2019-06-01 00:00:00
abstract::We have previously isolated 3T3 cell variants unable to respond to specific mitogens. In this report we analyze the dominant and/or recessive nature of these variants. Two independently isolated EGF nonproliferative variants are unable to bind EGF. Hybrids between 3T3R5 cells (thymidine kinase deficient, ouabain-resis...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041230305
更新日期:1985-06-01 00:00:00
abstract::Differentiated embryo chondrocyte 1 (DEC1), a member of basic-helix-loop-helix transcription factor Bhlhe40, also called stimulated by retinoic acid 13, STRA13, plays an important role in the regulation of adipogenesis, tumorigenesis, peripheral circadian output, response to hypoxia, and development of metabolic syndr...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26471
更新日期:2018-12-01 00:00:00
abstract::Interleukin-10 (IL-10) has been shown to exert anti-inflammatory effects by suppressing macrophage proliferation and inhibiting cytokine production. In this study we show that in the presence of erythropoietin (EPO), the addition of IL-10 results in a significant dose-dependent increase in both Burst Forming Unit-Eryt...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199602)166:2<305::AID-JCP8
更新日期:1996-02-01 00:00:00
abstract::Photoperiod regulates the seasonal reproductive rhythms of mammals by influencing the development and function of sexual organs; however, the underlying mechanism remains unclear. We examined the morphology and functioning of the main sex organs of striped dwarf hamsters (Cricetulus barabensis) under different photope...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29998
更新日期:2021-03-01 00:00:00
abstract::Activation of the epidermal growth factor receptor (EGFR) has been shown to occur by ligand-dependent and ligand-independent mechanisms. Different molecular mechanisms have been found to be responsible for ligand-independent receptor transactivation. Here, we show that hyperosmolar concentrations of sorbitol activate ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10134
更新日期:2002-08-01 00:00:00
abstract::The aim of the yearly National Congress of the Italian Society of Virology (SIV) is to promote the discussion between senior and younger researchers to improve the knowledge and scientific collaboration among the various areas of Virology. The invited and selected lecturers of the fourth National Congress of SIV cover...
journal_title:Journal of cellular physiology
pub_type:
doi:10.1002/jcp.20430
更新日期:2005-09-01 00:00:00
abstract::Vascular endothelial cells (ECs) are constantly subjected to flow-induced shear stress that is crucial for endothelial functions. Laminar shear stress (LSS) exerts atheroprotection to ECs. Mitochondrial homeostasis is essential for cellular survival. However, the effects of LSS on mitochondrial homeostasis in ECs rema...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26375
更新日期:2018-06-01 00:00:00
abstract::Chronic hyperglycemia and activation of receptor for advanced glycation end products (RAGE) are known risk factors for microvascular disease development in diabetic retinopathy. Thioredoxin-interacting protein (TXNIP), an endogenous inhibitor of antioxidant thioredoxin (TRX), plays a causative role in diabetes and its...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21852
更新日期:2009-10-01 00:00:00
abstract::To date, little is known concerning the promyelocytic leukemia gene (PML) status in tumors of different origin, and its expression has never been evaluated in soft tissue sarcoma. The aim of the present study is focused on the identification of differences in terms of PML protein expression between different types of ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22161
更新日期:2010-09-01 00:00:00
abstract::Epidermal growth factor (EGF) has been shown rapidly to inhibit the transition from G2 phase to mitosis: beyond this transition point the cells are refractory to EGF (Kinzel et al., 1990, Cancer Res., 50:7932-7936). Using synchronized HeLa cells, EGF has now been shown to induce an overall decrease of the histone H1 k...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041620107
更新日期:1995-01-01 00:00:00
abstract::We have previously demonstrated that insulin-like growth factor binding protein-5 (IGFBP-5) is upregulated following treatment of the mouse mammary epithelial cell line HC11 with lactogenic hormones (dexamethasone, insulin, and prolactin-DIP). In addition, we have also shown that IGFBP-5 is upregulated in mammary epit...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20587
更新日期:2006-05-01 00:00:00
abstract::Bone morphogenetic protein-2 (BMP-2), a member of transforming growth factor-beta superfamily, plays a crucial role in migration and metastasis of human cancer cells. Integrins are the major adhesive molecules in mammalian cells. Here we found that BMP-2 directed the migration and increased cell surface and mRNA expre...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21568
更新日期:2008-12-01 00:00:00