Abstract:
:Formation of human T lymphocyte colonies in semisolid medium from T lymphocyte colony-forming units (TL-CFUs) under stimulation of phytohemagglutinin (PHA) has been reported by several authors. These TL-CFUs were present in unsensitized lymphocyte populations. We report here that such TL-CFUs are capable of renewing themselves. This was observed when colony cells from primary T cell colonies that developed in the presence of PHA were replated in methylcellulose medium containing irradiated autologous leukocytes and PHA. We have also been able to demonstrate serial transfer of TL-CFU for up to six passages. At each passage, colony-forming frequency was determined from the proportional relationship between the number of new colonies obtained and the number of colony cells plated. Examination of the number of new colonies derived from each individual T cell colony ("burst size of TL-CFU") showed that most colonies contained very few new TL-CFU and only a very small number of colonies contained many new TL-CFU. The distribution of burst sizes could be well fitted to a gamma distribution, in agreement with prediction from a stochastic model. We have identified an activity that enhanced the mean TL-CFU burst size three to ten times. This work provides the first evidence in vitro that self-renewal of human T lymphocyte progenitor cells can be stimulated by specific regulatory proteins.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Wu AMdoi
10.1002/jcp.1041170114subject
Has Abstractpub_date
1983-10-01 00:00:00pages
101-8issue
1eissn
0021-9541issn
1097-4652journal_volume
117pub_type
杂志文章abstract:OBJECTIVE:To investigate whether mature human articular chondrocytes (AC) exhibit an antiproliferative effect on activated peripheral blood mononuclear cells (PBMC) and to compare this effect with other cells of mesenchymal origin. METHODS:AC from healthy cadaveric cartilage were grown for different passages, in the a...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20789
更新日期:2006-12-01 00:00:00
abstract::Eukaryotic organisms package DNA into chromatin for compact storage in the cell nucleus. However, this process promotes transcriptional repression of genes. To overcome the transcriptional repression, chromatin remodeling complexes have evolved that alter the configuration of chromatin packaging of DNA into nucleosome...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.22533
更新日期:2011-08-01 00:00:00
abstract::Restenosis after angioplasty or stent is a major clinical problem. While long noncoding RNAs (lncRNAs) are implicated in a variety of diseases, their role in restenosis is not well understood. This study aims to investigate how dysregulated lncRNAs and messenger RNAs (mRNAs) contribute to restenosis. By microarray ana...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28284
更新日期:2019-02-10 00:00:00
abstract::Keratin intermediate filaments play an important role in maintaining the integrity of the skin structure. Understanding the importance of this subject is possible with the investigation of keratin defects in epidermolysis bullosa simplex (EBS). Nowadays, in addition to clinical criteria, new molecular diagnostic metho...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.26898
更新日期:2018-01-01 00:00:00
abstract::Hemodynamic forces influence many endothelial cell functions. The coupling between hemodynamic forces and cell function could be mediated by mechano-sensitive ion channels present in the plasma membrane of endothelial cells. Because one of these channels is permeable to Ca2+, we tested whether hemodynamic forces influ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041510107
更新日期:1992-04-01 00:00:00
abstract::Phospholipase C-ε (PLCε) is frequently overexpressed in tumors and plays an important role in the regulation of tumorigenesis. Although great progress has been made in understanding biological roles of PLCε, the relevant molecular mechanisms underlying its pro-tumor activity remain largely unclear. Here, we demonstrat...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29698
更新日期:2020-11-01 00:00:00
abstract::Elevated levels of follistatin-like protein 1 (FSTL1) have been found both in mouse models for human rheumatoid arthritis (RA) and collagen-induced arthritis (CIA). In this study, we elucidated the potential mechanisms by which FSTL1 contributes to the pathogenesis of RA. Fibroblast-like synoviocytes (FLSs) were estab...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26580
更新日期:2018-01-01 00:00:00
abstract::Suppression of PKC activity can selectively induce apoptosis in cells expressing a constitutively activated p21Ras protein. We demonstrate that continued expression of p21Ras activity is required in PKC-mediated apoptosis because farnesyltransferase inhibitors abrogated the loss of viability in p21Ras-transformed cell...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10409
更新日期:2004-02-01 00:00:00
abstract::We have investigated the role of the plasminogen activation cascade in skeletal muscle differentiation. Migrating, undifferentiated myoblasts express urokinase plasminogen activator (uPA) and its cell surface receptor (uPAR). Consequently, uPA is localized predominantly to the cell surface. Preventing uPA from associa...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199705)171:2<217::AID-JCP1
更新日期:1997-05-01 00:00:00
abstract::B16 mouse melanoma cells are grown inhibited by cyclic AMP or by retinoic acid (RA). However, the combination of these two agents results in less growth inhibition than either agent alone. In order to investigate this interaction, cells were selected for resistance to 8-bromo-cyclic AMP-induced growth inhibition. Two ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041470122
更新日期:1991-04-01 00:00:00
abstract::We recently reported that the growth of normal rat pleural mesothelial cells (RPMCs) is inhibited by conditioned media from either in vivo or in vitro transformed RPMCs. In this study we report that the growth of normal RPMCs is inhibited by epidermal growth factor (EGF). This was demonstrated by using three methods o...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041440118
更新日期:1990-07-01 00:00:00
abstract::A mouse mammary epithelial cell line, NMuMG, exhibits a low capacity to grow in semisolid medium as colonies and it is not tumorigenic in nude mice. In contrast, NMuMG cells which have been transformed by an activated c-Harvey ras proto-oncogene, NMuMG/rasH, or by the polyoma middle T-transforming gene, NMuMG/pyt, are...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041300313
更新日期:1987-03-01 00:00:00
abstract::Epithelial Cell Adhesion Molecule (EpCAM), or CD326, is a trans-membrane glycoprotein expressed by multiple normal epithelia as well as carcinoma. Human hepatic stem cells and bile duct epithelium of the liver are EpCAM positive. In tumor cell lines, its intracellular domain can be released after cleavage of the extra...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26286
更新日期:2018-06-01 00:00:00
abstract::The permeability of human platelets to glycerol was determined at 37 degrees C, 25 degrees C, and 0 degrees C from the rate of change of cell volume after abrupt addition of 0.5 mol/liter glycerol in phosphate-buffered saline. Intracellular water volume was measured employing both tritiated water and a photometric met...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041280118
更新日期:1986-07-01 00:00:00
abstract::This study examines the mechanism by which TGF-beta 1, an important mediator of cell growth and differentiation, blocks the differentiation of normal rat diploid fetal osteoblasts in vitro. We have established that the inability for pre-osteoblasts to differentiate is associated with changes in the expression of cell ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041600214
更新日期:1994-08-01 00:00:00
abstract::In areolar "loose" connective tissue, fibroblasts remodel their cytoskeleton within minutes in response to static stretch resulting in increased cell body cross-sectional area that relaxes the tissue to a lower state of resting tension. It remains unknown whether the loosely arranged collagen matrix, characteristic of...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24102
更新日期:2013-01-01 00:00:00
abstract::Rat 3Y1 cells arrested at early S by hydroxyurea traversed the remainder of S and G2 and completed mitosis after removal of the drug, irrespective of the absence of serum from the culture medium. When cells were deprived of serum for a period between early S and mitosis after removal of hydroxyurea, the cells delayed ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041100308
更新日期:1982-03-01 00:00:00
abstract::In spite of the apparent depletion of mast cells in tissues of mutant mice of W/Wv genotype, cells with many features of mast cells do develop when bone marrow cells of W/Wv mice are cultured in the presence of pokeweed mitogen-stimulated spleen cell-conditioned medium (PWM-SCM). In order to resolve this discrepancy a...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041340109
更新日期:1988-01-01 00:00:00
abstract::We have examined the effects of constitutive expression of PTHrP on the growth and differentiation of populations of cells derived from a clonal chondrocytic cell line, CFK2. Cells were stably transfected with cDNA encoding either full-length, secretory PTHrP (CFK2P) or nonsecretory PTHrP (CFK2P-SS). In cultures of ce...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199610)169:1<33::AID-JCP4>
更新日期:1996-10-01 00:00:00
abstract::Cellular senescence is a growth-arrest program that limits cell proliferation. Low-power laser irradiation (LPLI) has been demonstrated to promote cell proliferation. However, whether LPLI can inhibit cellular senescence remains unknown. In the present study, to investigate the functional role of LPLI against skin agi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24425
更新日期:2014-01-01 00:00:00
abstract::The extracellular matrix (ECM) is present in a range of molecular conformations and intermolecular arrangements. Fibronectin (Fn) molecules that constitute fibers within the ECM can exist in a variety of conformations that result from both mechanical stress and chemical factors such as allosteric binding partners. The...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25271
更新日期:2016-08-01 00:00:00
abstract::Irritable bowel syndrome (IBS) is a prolonged and disabling functional gastrointestinal disorder with the incidence rate of 18% in the world. IBS could seriously affect lifetime of patients and cause high economic burden on the community. The pathophysiology of the IBS is hardly understood, whereas several possible me...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.27828
更新日期:2019-06-01 00:00:00
abstract::The high requirement of O2 in the renal proximal tubule stems from a high rate of Na(+) transport. Adenosine A1 receptor (A1R) activation regulates Na(+) transport in this nephron segment. Thus, the effect of the acute activation and the mechanisms of A1R on the rate of O2 consumption were evaluated. The A1R-antagonis...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25050
更新日期:2015-12-01 00:00:00
abstract::Earlier studies in multiple epithelia have shown that cell-cell actin-based adherens junction (AJ) dynamics are regulated, at least in part, by the interplay of kinases and phosphatases that determines the intracellular phosphoprotein content. Yet it is virtually unknown regarding the role of protein kinases in Sertol...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20119
更新日期:2005-02-01 00:00:00
abstract::Ion channels are pivotal to many aspects of sperm physiology and function. We have used the patch clamp technique to investigate the distribution of ion channels in the plasma membrane of the head of human spermatozoa. We report that three types of activity are common in the equatorial and acrosomal regions of the spe...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21153
更新日期:2007-12-01 00:00:00
abstract::We determined whether the multi-kinase inhibitor sorafenib or its derivative regorafenib interacted with phosphodiesterase 5 (PDE5) inhibitors such as Viagra (sildenafil) to kill tumor cells. PDE5 and PDGFRα/β were over-expressed in liver tumors compared to normal liver tissue. In multiple cell types in vitro sorafeni...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24961
更新日期:2015-09-01 00:00:00
abstract::It is well known that cell proliferation (and hence, DNA synthesis) declines in human diploid fibroblast-like cells with increasing passage number. It is not clear whether DNA synthesis declines in the remaining cells that are still actively proliferating. Estimations of cell kinetic parameters permitted extrapolation...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041240126
更新日期:1985-07-01 00:00:00
abstract::Although the type 1 insulin-like growth factor receptor (IGF-IR) is a potent inhibitor of apoptosis, its C-terminus sequence sends contradictory signals, including a clearly proapoptotic signal. We have synthesized a peptide, peptide 2, having the sequence of the IGF-IR from residue 1282 to residue 1298 (C-terminus of...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199910)181:1<124::AID-JCP1
更新日期:1999-10-01 00:00:00
abstract::Proteinuria in diabetic nephropathy has been correlated with reduction in heparan sulfate proteoglycan (HSPG) content of the glomerular basement membrane. We have previously shown that the underlying mechanism probably involves reduction in the synthesis by glomerular epithelial cells. In this study we explored whethe...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199604)167:1<131::AID-JCP1
更新日期:1996-04-01 00:00:00
abstract::The phenotype of a ouabain-resistant Aedes albopictus cell line has been partially characterized. Treatment of ouabain-sensitive cells with 0.005-1.0 mM ouabain resulted in an 80% reduction in the uptake of 86rubidium (86Rb+), an ion with an affinity for the K+ pump binding site; ouabain-resistant cells showed only a ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041010317
更新日期:1979-12-01 00:00:00