Abstract:
:The single-copy gene of human basic fibroblast growth factor (bFGF) encodes four co-expressed isoforms, with an apparent molecular weight (M(r)) of 24 kD, 22.5 kD, 22 kD, and 18 kD, co-translated from a single mRNA. As a tool for the study of the role exerted by the different bFGF isoforms in the biology of endothelial cells, human recombinant 24-kD bFGF was produced and purified from transformed Escherichia coli cells. To this purpose, the novel CUG start codon present in human bFGF cDNA and responsible for the synthesis of 24-kD bFGF was mutagenized to the classic AUG start codon. Transient expression of the mutagenized cDNA in simian COS-1 cells, followed by immunolocalization and subcellular fractionation, resulted in the synthesis of high levels of 24-kD bFGF, which localizes in the cell nucleus as an intact protein. When the same 24-kD bFGF cDNA was expressed in E. coli, the recombinant protein was purified to homogeneity by heparin-Sepharose and ion-exchange chromatography. Recombinant 24-kD bFGF was similar to recombinant 18-kD bFGF in receptor-binding activity and in inducing cell proliferation, plasminogen activator production, and chemotactic movement in cultured endothelial cells. In agreement with the in vitro observations, 24-kD bFGF and 18-kD bFGF exerted a similar angiogenic response when assayed in vivo in the rabbit cornea. Experiments performed with the radiolabeled molecule demonstrated that 24-kD bFGF has an intrinsic ability to bind to high-affinity receptors when added to endothelial GM 7373 cell cultures. Receptor-bound 24-kD bFGF is internalized within the cell and associates with the nucleus with kinetics similar to 18-kD bFGF. Internalized 24-kD bFGF is first processed to the 18-kD form via a chloroquine-insensitive pathway and then to smaller fragments into the lysosomal compartment. At variance with the data obtained in transfected COS-1 cells, only limited amounts of exogenous internalized 24-kD bFGF associates with the nucleus in the intact form, mostly of the nuclear-bound molecule being represented by the processed 18-kD protein and by smaller degradation products. In conclusion, human recombinant 24-kD bFGF exerts a biological response in endothelial cells similar to 18-kD bFGF both in vitro and in vivo. Our data point to a different intracellular behavior of the high-molecular-weight bFGF isoform when added exogenously to cultured cells or when produced endogenously in transfected cells.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Gualandris A,Urbinati C,Rusnati M,Ziche M,Presta Mdoi
10.1002/jcp.1041610118subject
Has Abstractpub_date
1994-10-01 00:00:00pages
149-59issue
1eissn
0021-9541issn
1097-4652journal_volume
161pub_type
杂志文章abstract::The expression profile and functions of the brain-enriched Rab22B/Rab31 small GTPase had remained uncharacterized. Using specific antibodies against Rab22B, we found the protein to be exceptionally enriched in nestin and RC2-positive radial glia of the embryonic mouse brain. In the adult brain, Rab22B is rather specif...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21911
更新日期:2009-12-01 00:00:00
abstract::Amylin is a 37 amino acid peptide produced mainly by beta-cells of the endocrine pancreas. Human amylin has 43% homology with human calcitonin gene-related peptide (CGRP) and 13% homology with human calcitonin (CT). Amylin and CGRP have been reported to have CT-like hypocalcemic activity in vivo. To investigate the ro...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041530103
更新日期:1992-10-01 00:00:00
abstract::Cell division in fertilized sea urchin eggs was reversibly inhibited when the ketoaldehyde phenyl glyoxal (PG) at a concentration of 0.1 mM was added to eggs for ten minutes prior to the formation of the mitotic spindle. We investigated whether inhibition of mitosis was due to PG binding to the cell surface (as previo...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041000119
更新日期:1979-07-01 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::Pterostilbene (PTS), a naturally occurring stilbene, confers protection against oxidative and cytokine stress induced pancreatic β-cell apoptosis in vitro and in vivo. To provide insights into the molecular mechanism, we performed a proteomic study on the pancreas of PTS-treated diabetic mice using electrospray ioniza...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26835
更新日期:2019-03-01 00:00:00
abstract::The basic fibroblast growth factor (FGF) is a potent mitogen that has vascular endothelium as one of its principle target cells. Recent work has provided both the complete amino acid sequence of basic FGF and the nucleotide sequence of the genes for both human and bovine basic FGF. Although capillary endothelial cells...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041380116
更新日期:1989-01-01 00:00:00
abstract::The polyphenolic compounds curcumin and quercetin increased sensitivity of ovarian cancer cells (CAOV3 and SKOV3) to cisplatin. The effect was obtained when the compounds were added simultaneously with cisplatin, as well as when they were added 24 h before. High serum levels of certain cytokines, for example interleuk...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10186
更新日期:2003-01-01 00:00:00
abstract::Cultures of HeLa cells, strains S3G (HeLa65) and S3K (HeLa71) were grown in plastic dishes until firmly attached and were then treated with sonic dispersions of Rosenthal's phospholipase inhibitor. A rapid increase in alkaline phosphatase activity occurred following this treatment in the S3G strain (low inducible alka...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040920111
更新日期:1977-07-01 00:00:00
abstract::The toxicity of cationic fluorescent dye, rhodamine 123, towards a number of independently established cell lines from three different species, namely human, mouse, and Chinese hamster, has been examined. All of the cell lines from any one species that were examined were found to exhibit similar sensitivities towards ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041300303
更新日期:1987-03-01 00:00:00
abstract::CRM197 is a naturally nontoxic diphtheria toxin mutant that binds and inhibits heparin-binding epidermal growth factor-like growth factor. CRM197 serves as carrier protein for vaccine and other therapeutic agents. CRM197 also inhibits the growth, migration, invasion, and induces apoptosis in various tumors. Vascular c...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24798
更新日期:2015-08-01 00:00:00
abstract::MCF-10A human mammary epithelial cells cultured inside reconstituted basement membrane form acini that resemble the acinar structures of mammary lobules. This three-dimensional culture system has been used for identifying and characterizing the signal transduction pathways controlling cell proliferation and death, and...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20639
更新日期:2006-07-01 00:00:00
abstract::Activation of the receptor tyrosine kinase c-kit by the kit-ligand, also known as stem cell factor (SCF), is essential to melanocyte and germ cell development and during the early stages of hematopoiesis. Deregulated expression of c-kit has been reported in malignancies affecting these lineages, i.e., myeloid leukemia...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199707)172:1<1::AID-JCP1>3
更新日期:1997-07-01 00:00:00
abstract::The possibility that one or both of the synthetic triamines, 1,3,6-triaminohexane and 1,4,7-triaminoheptane, could substitute for the naturally occurring polyamines in the growth of SV-3T3 cells was investigated. It was found that these triamines did lead to a restoration of growth in cells in which spermidine content...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041270219
更新日期:1986-05-01 00:00:00
abstract::Tumor ischemia participates in angiogenesis and cancer progression through cellular responses to hypoxia and nutrient deprivation. However, the contribution of amino acids limitation to this process remains poorly understood. Using serum-free cell culture conditions, we tested the impact of L-glutamine deprivation on ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21044
更新日期:2007-08-01 00:00:00
abstract::Heparin-binding epidermal growth factor-like growth factor (HB-EGF) mRNA and protein expression is induced by EGF in MCF-10A nontransformed and Ha-ras transfected human mammary epithelial cells. The anti-EGF receptor (EGFR) blocking monoclonal antibody (MAb) 225 and the EGFR tyrosine kinase inhibitor PD153035 were abl...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/1097-4652(200002)186:2<233::AID-JCP1017>3.
更新日期:2001-02-01 00:00:00
abstract::Vitamin C is an essential micronutrient for the development of male germ cells. In the gonad, the germ cells are isolated from the systemic circulation by the blood-testis barrier, which consists of a basal layer of Sertoli cells that communicate through an extensive array of tight junction complexes. To study the beh...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21545
更新日期:2008-12-01 00:00:00
abstract::The percentage of T and B lymphocytes expressing a distinct cytoplasmic aggregate enriched in spectrin, ankyrin, and in several other proteins including protein kinase C greatly increases following various activation protocols. Members of the 70 kDa family of heat shock proteins (hsp70) temporarily bind to and stabili...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041650203
更新日期:1995-11-01 00:00:00
abstract::The export of rRNP particles from nuclei isolated from Tetrahymena was investigated after preincubating the nuclei at different temperatures under nonpermissive export-conditions. We observed a new phenomenon: Temperature elevation from the sublethal cells' growth temperature, 8 degrees C, to the optimal temperature, ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041200215
更新日期:1984-08-01 00:00:00
abstract::We have previously shown that 24,25-(OH)2D3 plays a major role in resting zone (RC) chondrocyte differentiation and that this vitamin D metabolite regulates protein kinase C (PKC). The aim of the present study was to identify the signal transduction pathway used by 24,25-(OH)2D3 to stimulate PKC activation. Confluent,...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199612)169:3<509::AID-JCP1
更新日期:1996-12-01 00:00:00
abstract::Maintenance of intestinal epithelial barrier functions is crucial to prevent systemic contamination by microbes that penetrate from the gut lumen. GTPases of the Rho-family such as RhoA, Rac1, and Cdc42 are known to be critically involved in the regulation of intestinal epithelial barrier functions. However, it is sti...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22446
更新日期:2011-05-01 00:00:00
abstract::Addition of prostaglandin E1 (PGE1) to quiescent cultures of Swiss 3T3 cells rapidly elevates the intracellular levels of cAMP and increases the activity of adenylate cyclase in particulate fractions of these cells. In the presence of insulin, PGE1 stimulates the reinitiation of DNA synthesis. Both effects (increase i...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041160316
更新日期:1983-09-01 00:00:00
abstract::The INI1 gene, which encodes a functionally uncharacterized protein component of the hSWI/SNF chromatin remodeling complex, is often mutated or deleted in malignant rhabdoid tumor (MRT). Two isoforms of INI1, that differ by the variable inclusion of nine amino acids, potentially are produced by differential RNA splici...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10201
更新日期:2003-03-01 00:00:00
abstract::Secretory leukocyte protease inhibitor (SLPI) is a serine protease inhibitor that was related to cancer development and metastasis dissemination on several types of tumors. However, it is not known the effect of SLPI on mammary and colon tumors. The aim of this study was to examine the effect of SLPI on mammary and co...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24153
更新日期:2013-02-01 00:00:00
abstract::Integrin α2β1 plays an important role in cellular migration and metastasis processes associated with prostate cancer. The aim of this study was to assess whether selective inhibition of integrin α2β1 is an effective strategy to target metastatic prostate cancer cells. In this regard, we examined the effects of the inh...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.30202
更新日期:2020-12-10 00:00:00
abstract::The signaling pathways that stimulate glucose uptake in response to muscle contraction are not well defined. Recently, we showed that carbachol, an acetylcholine analog, stimulates contraction of C2C12 myotube cultures and the rapid arrival of myc-epitope tagged GLUT4 glucose transporters at the cell surface. Here, we...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22320
更新日期:2011-01-01 00:00:00
abstract::Anti-angiogenic agents regulate tumor growth by inhibiting endothelial cell proliferation and invasion. Carboxyamido-triazole (CAI), an inhibitor of non-voltage-operated calcium entry and calcium influx-mediated pathways, has angiogenesis and invasion inhibitory activity. We hypothesized that CAI may express its anti-...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10350
更新日期:2003-10-01 00:00:00
abstract::Cancer cell lines have contributed immensely in understanding the complex physiology of cancers. They are excellent material for studies as they offer homogenous samples without individual variations and can be utilised with ease and flexibility. Also, the number of assays and end-points one can study is almost limitl...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.25664
更新日期:2017-10-01 00:00:00
abstract::Upregulation and overexpression of discoidin domain receptor 1 (DDR1) have been implied in the regulation of kidney development and progression of cancers. Our previous studies with Mardin-Darby canine kidney (MDCK) cells showed that overexpression of DDR1 inhibited cell spreading, whereas dominant negative DDR1 promo...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21578
更新日期:2009-01-01 00:00:00
abstract::Derivation of insulin producing cells (IPCs) from embryonic stem (ES) cells provides a potentially innovative form of treatment for type 1 diabetes. Here, we discuss the current state of the art, unique challenges, and future directions on generating IPCs. ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.21615
更新日期:2009-02-01 00:00:00
abstract::Chemokines play an important role in regulating the complex immune system at the maternal-fetal interface during pregnancy. Among various chemokines, CC motif chemokine ligand 2 (CCL2) plays a role in the recruitment of immune regulatory cells to implantation sites within the endometrium. In cattle, CCL2 is abundantl...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26151
更新日期:2018-04-01 00:00:00