Abstract：
:The bone morphogenetic proteins (BMPs) are potent osteoinductive factors that accelerate osteoblast maturation, accompanied by increased cell-substrate adhesion. BMP-2 treatment of osteoblastic cells increases phosphorylation of the cytoplasmic BMP-2 signaling molecules, Smad1 and Smad5. We have previously reported that BMP-2 treatment increase cytoskeletal organization of human trabecular bone-derived osteoblast-like cells (osteoblasts), which is also accompanied by an activation of the focal adhesion kinase p125(FAK). We report here that activation of p125(FAK) occurs with the same kinetics as the phosphorylation of Smad1, suggesting that BMP-2 initiates cross-talk between Smad signaling and the adhesion-mediated signaling pathway. As an adjunct to these effects, we examined activation of mitogen-activated protein (MAP) kinase family members in response to focal adhesion contact formation. Although phosphorylated forms of all three kinases were apparent, only SAPK2alpha/p38 (p38) was activated in response to BMP-2 treatment. Inhibition of p38 kinase activity suppressed BMP-2 induced Smad1 phosphorylation, as well as its translocation to the nucleus, suggesting the integration of p38 activation with Smad1 signaling. Finally, inhibition of p38 in osteoblasts also led to the complete abrogation of BMP-2 induced osteocalcin gene expression and matrix mineralization. These findings suggest that BMP-2 must activate p38 in order to mediate osteogenic differentiation and maturation.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Nöth U,Tuli R,Seghatoleslami R,Howard M,Shah A,Hall DJ,Hickok NJ,Tuan RSdoi
10.1016/s0014-4827(03)00386-0keywords:
subject
Has Abstractpub_date
2003-11-15 00:00:00pages
201-11issue
1eissn
0014-4827issn
1090-2422pii
S0014482703003860journal_volume
291pub_type
杂志文章abstract：:The neurohormone serotonin (5HT) triggers meiosis reinitiation in oocytes of the pelecypod molluscs Spisula solidissima and Ruditapes philippinarum. However, while Spisula oocytes complete maturation, Ruditapes oocytes arrest in metaphase I. Anti-phosphotyrosine antibody revealed that serotonin triggered an early tyro...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1994.1163
更新日期：1994-06-01 00:00:00
abstract：:We have compared dye coupling in pairs of small (less than 10 microns in diameter) and large (greater than 20 microns in diameter) keratinocytes isolated from normal human epidermis, using Lucifer yellow microinjection. Under control conditions, dye coupling was found in only 1 out of the 25 small pairs tested, wherea...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(92)90294-i
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abstract：:It has been reported that cholesterol-lowing agents can ameliorate severity of myocarditis. However, the beneficial effect of the agents has been claimed to be independent of cholesterol reduction as there is no significant change in the plasma cholesterol level in myocarditis. In the present study, using experimental...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2020.112169
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(86)90460-x
更新日期：1986-05-01 00:00:00
abstract：:Chondrocytes express CD44 as a primary receptor for the matrix macromolecule hyaluronan. Hyaluronan is responsible for the retention and organization of proteoglycan within cartilage, and hyaluronan-chondrocyte interactions are important for the assembly and maintenance of the cartilage matrix. Bovine articular chondr...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1999.4641
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(91)90056-z
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(87)90011-5
更新日期：1987-02-01 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2013.03.002
更新日期：2013-05-01 00:00:00
abstract：:Taking the advantage of single-molecule imaging, our recent study has revealed surprisingly long processive movement of a Formin protein, mDia1, surfing along with the growing end of actin filaments in living cells. This finding provides direct evidence for the ability of Formins to function as processive cappers that...
journal_title：Experimental cell research
pub_type： 杂志文章,评审
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更新日期：2004-11-15 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2015.03.001
更新日期：2015-06-10 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(85)90177-6
更新日期：1985-10-01 00:00:00
abstract：:Megakaryocytes (Mks) are unique cells in the human body in that they carry a single and polyploid nucleus. It is therefore of interest to understand their nuclear ultrastructure. PML oncogenic domains (PODs) were described in several types of eukaryotic cells using human autoantibodies which recognize nuclear antigens...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.2001.5377
更新日期：2001-12-10 00:00:00
abstract：:An implantation-competent blastocyst, several hours prior to its attachment on the uterine wall, transmits signals to surrounding uterine cells and vice-versa to initiate a two-way interaction. The language of this precocious dialogue is versatile, taking advantage of secreted molecules for long-range interactions and...
journal_title：Experimental cell research
pub_type： 杂志文章,评审
doi：10.1016/j.yexcr.2008.07.025
更新日期：2009-02-15 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1998.4372
更新日期：1999-03-15 00:00:00
abstract：:As chemical reactions related to the regulation of cell proliferation are governed by availability, amount, and concentration of relevant molecules, it has been suggested that cell size is an important factor in the control of cell cycle. We have measured the size of proliferating cells of Allium cepa roots in which g...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(89)90056-6
更新日期：1989-11-01 00:00:00
abstract：:The casein kinase I (CKI) family consists of at least seven vertebrate genes, some of which can be alternatively spliced. Previously, we have studied the four splice variants of the chicken CKIalpha gene. The four proteins differ only by the presence or absence of two peptides, a 28-amino-acid "L" insert in the cataly...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.2001.5324
更新日期：2001-10-01 00:00:00
abstract：:The rate-limiting step in melanogenesis is catalyzed by tyrosinase, a multifunctional enzyme encoded by the albino locus. We have previously reported that depletion of protein kinase C by long-term treatment of B16 mouse melanoma cells with phorbol dibutyrate (PDBu) prevented cell density-dependent melanogenesis. This...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1997.3773
更新日期：1997-11-25 00:00:00
abstract：:Uterine fibroids, also known as uterine leiomyomas, are a benign tumor of the human uterus and the commonest estrogen-dependent benign tumor found in women. Myocardin is an important transcriptional regulator in smooth and cardiac muscle development. The role of myocardin and its relationship with ERα in uterine fibro...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2016.11.007
更新日期：2017-01-01 00:00:00
abstract：:Müller cells are the predominant retinal glial cells. One of the key roles of Müller cells is in the uptake of the neurotransmitter glutamate and in its conversion to glutamine. Müller cell dysfunction due to oxidative stress elicited by high glutamate concentrations can lead to toxicity, which promote the pathogenesi...
journal_title：Experimental cell research
pub_type： 杂志文章
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1996.3452
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(89)90405-9
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journal_title：Experimental cell research
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doi：10.1016/j.yexcr.2013.08.005
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abstract：:NIH3T3 cells carrying a dominant negative H-ras mutant 116Y acquired resistance to transformation by some PTK oncogenes, i.e., v-fes, v-abl, and v-fms, but were sensitive to viral ras and serine threonine kinase oncogenes, v-raf and v-mos. One clone, designated 1-20, infected with v-fes (1-20 fes) exhibited flat morph...
journal_title：Experimental cell research
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doi：10.1006/excr.1993.1263
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journal_title：Experimental cell research
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doi：10.1016/j.yexcr.2018.03.013
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journal_title：Experimental cell research
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journal_title：Experimental cell research
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2007.01.006
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abstract：:The Saccharomyces cerevisiae ALG7 gene, which functions by initiating the dolichol pathway of protein N-glycosylation, displays properties of an early growth-response gene. To initiate studies of the involvement of ALG7 in cellular proliferation, we have now more precisely analyzed ALG7 expression in the G1 phase of c...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1995.1255
更新日期：1995-08-01 00:00:00
abstract：:We have isolated a clone of human lymphoblastoid cells that is capable of undergoing the phenomenon of contact-mediated cell spreading in vitro. We have detected this behavior when using both transmission electron microscopy (TEM), and differential interference contrast microscopy. Upon cell-cell contact, cells become...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(83)90015-0
更新日期：1983-05-01 00:00:00
