Abstract:
:1,25-Dihydroxyvitamin D3 (1,25(OH)2D3) and the vitamin D receptor (VDR) have been reported to have an important role in the regulation of innate immunity. We earlier reported that the antimicrobial peptide cathelicidin is induced by 1,25(OH)2D3 in normal human bronchial epithelial cells with a resultant increase in antimicrobial activity against airway pathogens. In this study, we demonstrate that C/EBP alpha (C/EBPα) is a potent enhancer of human cathelicidin antimicrobial peptide (CAMP) gene transcription in human lung epithelial cells. In addition we found that C/EBPα functionally cooperates with VDR in the regulation of CAMP transcription. A C/EBP binding site was identified at -627/-619 within the CAMP promoter, adjacent to the vitamin D response element (VDRE; -615/-600). Mutation of this site markedly attenuated the transcriptional response to C/EBPα as well as to 1,25(OH)2D3, further indicating cooperation between these two factors in the regulation of CAMP. ChIP analysis using 1,25(OH)2D3 treated human lung epithelial cells showed C/EBPα and VDR binding to the CAMP promoter. C/EBPα has previously been reported to cooperate with Brahma (Brm), an ATPase that is component of the SWI/SNF chromatin remodeling complex. We found that dominant negative Brm significantly inhibited C/EBPα as well as 1,25(OH)2D3 mediated induction of CAMP transcription, suggesting the functional involvement of Brm. These findings define novel mechanisms involving C/EBPα, SWI/SNF, and 1,25(OH)2D3 in the regulation of CAMP in lung epithelial cells. These mechanisms of enhanced activation of the CAMP gene in lung epithelial cells suggest potential candidates for the development of modulators of innate immune responses for adjunct therapy in the treatment of airway infections.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Dhawan P,Wei R,Sun C,Gombart AF,Koeffler HP,Diamond G,Christakos Sdoi
10.1002/jcp.24729subject
Has Abstractpub_date
2015-02-01 00:00:00pages
464-72issue
2eissn
0021-9541issn
1097-4652journal_volume
230pub_type
杂志文章abstract::Numerous reports have appeared on the occurrence of undefined protein factors in male reproductive fluids that promote motility of mature sperm and initiate forward motility in the immature (immotile) caput-epididymal sperm. This study reports for the first time purification to apparent homogeneity of a motility initi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21947
更新日期:2010-01-01 00:00:00
abstract::A variant of the hypoxanthine-guanine phosphoribosyltransferase deficient, and adenine phosphoribosyltransferase deficient mouse resistant to 6-azauridine. These cells are not only resistant to 6-azauridine (5 X 10(-4) M), but also to adenosine (10(-3) M). Resistance persists indefinitely even in the absence of both c...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040860202
更新日期:1975-10-01 00:00:00
abstract::Sarcolectin is an endolectin present in a great variety of conjunctival tissues (muscles, cartilage, sarcomas), but also in brain or placental extracts of vertebrates, including primates. When purified to electrophoretical homogeneity as a 65-kd protein, it agglutinates cells and has an affinity for simple sugars. In ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041450123
更新日期:1990-10-01 00:00:00
abstract::A human osteosarcoma cell line, U-2 OS, cultured under serum-free conditions, was shown to produce a growth factor (osteosarcoma-derived growth factor, ODGF) for human-cultured glial cells, fibroblasts, and other cells. ODGF, collected from the spent medium of 2 OS cultures, was purified by a sequence involving hepari...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041050207
更新日期:1980-11-01 00:00:00
abstract::The smooth muscle cell population in major arteries of humans and experimental animals is heterogeneous with regard to cellular DNA content. A proportion of cells has polyploid DNA content and this proportion increases with normal aging and with hypertension. We have isolated pure populations of rat aortic smooth musc...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041250322
更新日期:1985-12-01 00:00:00
abstract::In previous studies on HeLa cells we demonstrated estrogen-responsiveness of the epidermal growth factor receptor (EGFR) gene, as 17beta-estradiol (E(2)) and selective estrogen receptor modulators (SERMs) genistein (G), daidzein (D), and 4-hydroxytamoxifen (4OH-T) modulated its transcription in a ligand- and estrogen ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21724
更新日期:2009-07-01 00:00:00
abstract::Despite being densely packed with chromatin, nuclear bodies and a nucleoskeletal network, the nucleus is a remarkably dynamic organelle. Chromatin loops form and relax, RNA transcripts and transcription factors move diffusively, and nuclear bodies move. We show here that RNA splicing speckled domains (splicing speckle...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25224
更新日期:2016-06-01 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::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::Rooibos (Aspalathus linearis) has various health benefits. Two case studies have associated chronic Rooibos consumption with conventional prescription medications, including atorvastatin (ATV), with hepatotoxicity. Statins act by inhibiting hydroxymethylglutaryl-coenzyme A reductase, a rate-limiting enzyme in choleste...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29756
更新日期:2020-12-01 00:00:00
abstract::Toll-like receptors (TLRs) are usually expressed on immune cells such as macrophages, dendritic cells, mast cells, as well as on eosinophils and some epithelial cells. They play a central role in the recognition of harmful molecules that belong to invading microorganisms or internal damaged tissues, which lead to infl...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.28879
更新日期:2019-12-01 00:00:00
abstract::New compounds with promising antidiabetic activity were synthesized. For the first time, a portion of the glibenclamide molecule was bound to a part of the core structure of thiazolidinedione to evaluate insulin secretagogue activity. Following studies in our laboratory, 4-{2-[2-(3,4-dichlorophenyl)-4-oxo-1,3-thiazoli...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26746
更新日期:2018-01-01 00:00:00
abstract::Autophagy is an evolutionarily conserved intracellular process and is considered one of the main catabolism pathways. In the process of autophagy, cells are digested nonselectively or selectively to recover nutrients and energy, so it is regarded as an antiaging process. In addition to the essential role of autophagy ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.30111
更新日期:2021-01-16 00:00:00
abstract::Considerable evidence has accumulated for a role of a nonsteroidal mevalonate product in the regulation of DNA replication and cell division. We report here a similar requirement for mevalonate in a nonreplicative function, that of natural killer (NK) cell cytotoxicity. Treatment of NK cells with 10 microM compactin f...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041390314
更新日期:1989-06-01 00:00:00
abstract::The desert hedgehog (Dhh) is crucial for spermatogenesis and Leydig cell differentiation, but little is known regarding its physiological function in cartilage. In this study, Dhh mRNA was abundant in antler chondrocytes, where it advanced cell proliferation concomitant with accelerated transition from the G1 to the S...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29528
更新日期:2020-09-01 00:00:00
abstract::An unusual inward current which is slowly elicited in the Xenopus oocyte membrane during sustained depolarization is reportedly carried by Na+. It is thought that Na+ selective channels are in some way induced to become voltage-sensitive by the depolarization. Earlier studies report that the induction process involves...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199902)178:2<258::AID-JCP1
更新日期:1999-02-01 00:00:00
abstract::The relationship between replication and the synthesis of matrix sulfated proteoglycans was investigated with fetal rat chondrocytes grown in monolayer culture. The effect of N6 O2' dibutyryl adenosine 3', 5' cyclic monophosphate (DBcAMP), adenosine 3', 5' cyclic monophosphate (cAMP), 8 Bromo adenosine 3', 5' cyclic m...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041000107
更新日期:1979-07-01 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
abstract::Increased neovascularization is commonly observed in hemorrhagic plaques and associated with rupture of atherosclerotic lesions. This study aims to investigate whether hemin accumulated at the site of hematoma promotes neovascularization through affecting the growth and function of endothelial progenitor cells (EPCs) ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21711
更新日期:2009-06-01 00:00:00
abstract::The aim of our studies was to identify miRNAs affecting the release of the major ovarian steroid hormones progestagen, androgen and estrogen by human ovarian cells. The effect of transfection of cultured primary ovarian granulosa cells with 80 different gene constructs encoding human pre-miRNAs on release of progester...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21689
更新日期:2009-05-01 00:00:00
abstract::We evaluated the role of CCL20 (MIP-3alpha) chemokine in cells directly involved in the remodeling of bone tissue (osteoblasts and osteoclasts) and we confirmed its expression in the subchondral bone tissue of rheumatoid arthritis (RA) patients. The expression of CCL20 and of its receptor CCR6 was evaluated in osteobl...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20905
更新日期:2007-03-01 00:00:00
abstract::Overexpression of IGF-1 in C2C12 myoblasts causes hypertrophy when myoblasts fuse to form myotubes, a response that requires elevated intracellular calcium. We show that myoblasts contain a store-operated Ca2+ channel (SOCC) whose activity is enhanced with IGF-1 overexpression. A membrane protein, CD20, can cause Ca2+...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10347
更新日期:2003-10-01 00:00:00
abstract::We demonstrated previously that in serum-starved MCF-7 breast cancer cell line, Ang II increased Na+/K+ATPase activity and activated the protein kinase C zeta (PKC-zeta) (Muscella et al., 2002 J Endocrinol 173:315-323; 2003 J Cell Physiol 197:61-68.). The aim of the present study was to investigate the modulation of t...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20396
更新日期:2005-11-01 00:00:00
abstract::The level of poly A+ RNA in growing cultures of human diploid fibroblasts is 1.8-fold times greater than in resting cultures. The level of functional ribosomes in growing cultures is 2.8 times that in resting cultures. Since transit times are similar in both types of cells, it can be concluded that the rate of protein...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040940212
更新日期:1978-02-01 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::Recent studies have indicated that endoplasmic reticulum stress, the unfolded protein response activation and altered GRP78 expression can play an important role in a variety of tumors development and progression. Very recently we reported for the first time that GRP78 is increased in endometrial tumors. However, whet...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24578
更新日期:2014-10-01 00:00:00
abstract::CHFR acts as a tumor suppressor gene, which is frequently inactivated caused by its promoter hypermethylation in various solid tumors. Although a recent study showed that CHFR hypermethylation was a frequent event in acute myeloid leukemia (AML) and correlated with adverse clinical outcome, herein, we found that CHFR ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26253
更新日期:2018-06-01 00:00:00
abstract::Wound healing is critically affected by age, ischemia, and growth factors such as TGFbeta1. The combined effect of these factors on fibroblast migration, an essential component of wound healing, is poorly understood. To address this deficiency, we examined expression of TGFbeta receptor type I and II (TGFbetaRI and RI...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.10060
更新日期:2002-02-01 00:00:00
abstract::The correspondence between K+ uptake in platelets to their responsiveness was studied using 86Rb+ as an analogue of K+. An average 86Rb+ uptake rate of 0.73 (+/- 0.140) x 10(-15) mole Rb+/min-plt (n = 20) was observed. By the use of K(+)-influx inhibitors, we were able to distinguish three distinct 86Rb+ uptake pathwa...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041510205
更新日期:1992-05-01 00:00:00
abstract::Osteoporosis is a class of metabolic bone disease caused by complexed ramifications. Overactivation of osteoclasts due to a sudden decreased estrogen level plays a pivotal role for postmenopausal women suffering from osteoporosis. Therefore, inhibiting osteoclast formation and function has become a major direction for...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28289
更新日期:2019-02-27 00:00:00