scholarly journals Expression Pattern and Role of a 60-Kilodalton Progesterone Binding Protein in Regulating Granulosa Cell Apoptosis: Involvement of the Mitogen-Activated Protein Kinase Cascade1

2003 ◽  
Vol 68 (1) ◽  
pp. 122-128 ◽  
Author(s):  
J.J. Peluso ◽  
T. Bremner ◽  
G. Fernandez ◽  
A. Pappalardo ◽  
B.A. White
Keyword(s):  
Protein Kinase ◽  
Expression Pattern ◽  
Granulosa Cell ◽  
Cell Apoptosis ◽  
Binding Protein ◽  
Mitogen Activated Protein Kinase ◽  
Mitogen Activated Protein

Role of granulosa cell mitogen-activated protein kinase 3/1 in gonadotropin-mediated meiotic resumption from diplotene arrest of mammalian oocytes

2018 ◽  
Vol 36 (1-2) ◽  
pp. 41-47 ◽  
Author(s):  
Kankshi Sahu ◽  
Anumegha Gupta ◽  
Alka Sharma ◽  
Meenakshi Tiwari ◽  
Ashutosh N. Pandey ◽  
...  
Keyword(s):  
Protein Kinase ◽  
Granulosa Cell ◽  
Mitogen Activated Protein Kinase ◽  
Mitogen Activated Protein ◽  
Cell Mitogen

scholarly journals The RNA-Binding Protein PCBP1 Functions as a Tumor Suppressor in Prostate Cancer by Inhibiting Mitogen Activated Protein Kinase 1

2018 ◽  
Vol 48 (4) ◽  
pp. 1747-1754 ◽  
Author(s):  
Yingying Zhang ◽  
Lin Meng ◽  
Lin Xiao ◽  
Ruiwang Liu ◽  
Zhonghai Li ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Protein Kinase ◽  
Rna Binding ◽  
Binding Protein ◽  
Rna Binding Protein ◽  
Mitogen Activated Protein Kinase ◽  
Mrna Levels ◽  
Mitogen Activated Protein

Background/Aims: Poly r(C) binding protein (PCBP) 1 or heterogeneous ribonucleoprotein (hnRNP) E1 is a RNA binding protein functional in multiple biological processes. In prostate cancer (PCa), PCBP1 loss was shown to be involved with increased stemness in PCacells; however, the underlying mechanism remains unclear. Method: The role of PCBP1 in prostate tumor formationwas determined by xenograft assays. Immunoprecipitationand mass spectrometry were performed to find the pathways altered after PCBP1 knockdown. Cell proliferation, migration, invasion, and soft agar colony formationassays and xenograft assays were used to determine the role of target protein pathogenesis regulation and formation of PCa. QRT-PCR was performedto quantify relative mRNA expression. Results: The expression of mitogen activated protein kinase 1 (MAPK1) or extracellular signal regulated kinase 2 (ERK2) was increased following PCBP1 loss. Attenuation of MAPK1 inhibited in vitro and in vivo tumorigenicity and metastasis in PCa cell line, PC3. Overexpression of MAPK1 in the PC3 cells increased the tumorigenicity and metastasis. Analysis of PCBP1 and MAPK1 mRNA levels in 25 PCa patients compared to tumor-adjacent normal tissue confirmed an inverse correlation between PCBP1 and MAPK1 expression. Conclusions: PCBP1 can act as a suppressor of tumor in prostate epithelial cells by inhibiting MAPK1 expression.

scholarly journals Comparative Proteomics for Identification of ReproductionRelated Proteins in Testes of the Giant Tiger Shrimp Penaeus monodon

2020 ◽  
Vol 4 (2) ◽  
pp. 69-79
Author(s):  
Sirawut Klinbunga ◽  
Sasithorn Petkorn ◽  
Narumon Phaonakrop ◽  
Sirithorn Janpoom ◽  
Sirikan Prasertlux ◽  
...  
Keyword(s):  
Protein Kinase ◽  
Binding Protein ◽  
Expression Profiles ◽  
Penaeus Monodon ◽  
Mitogen Activated Protein Kinase ◽  
Testicular Development ◽  
Tiger Shrimp ◽  
Mitogen Activated Protein ◽  
Related Proteins

Testicular proteome of wild and domesticated 14- and 18-month-old broodstock of the giant tiger shrimp Penaeus monodon was examined. Among 344 differentially expressed proteins identified, 11 proteins (e.g. p97/VCP-binding protein p135, lipoxygenase homology domains 1 and dipeptidyl-peptidase, accounting for 4.95% of proteins with known functions) were found in wild broodstock but not in domesticated broodstock while 152 (68.47%) proteins were commonly found in all groups of samples. Reproduction-related proteins such as vasa-like protein, Wee1-like protein kinase, serine/threonine protein kinase, mitogen activated protein kinase kinase 2, GTP-binding protein alpha subunit, seven membrane helix receptor, nuclear receptor subfamily 3, were identified. To examine a possible role of the signal transduction system in development of testes of P. monodon, the expression level of testicular serine/arginine rich-protein kinase 3 (PmSrpk3) mRNA of domesticated juveniles and broodstock was examined and it was significantly lower than that of wild P. monodon broodstock (P<0.05). PmSrpk3 expression was significantly induced by serotonin (P<0.05) but not progesterone (P>0.05) injection. The expression profiles of PmSrpk3 indicated reduced reproductive maturation of domesticated male P. monodon and exogenous administration of serotonin may be applied for promoting the testicular development of captive P. monodon

Role of p38 Mitogen-Activated Protein Kinase in Thrombus Formation

2004 ◽  
Vol 24 (4) ◽  
pp. 283-296 ◽  
Author(s):  
Kanako Sakurai ◽  
Yuji Matsuo ◽  
Tatsuhiko Sudo ◽  
Yoh Takuwa ◽  
Sadao Kimura ◽  
...  
Keyword(s):  
Protein Kinase ◽  
Thrombus Formation ◽  
Mitogen Activated Protein Kinase ◽  
Mitogen Activated Protein

scholarly journals Dual-mode regulation of the APC/C by CDK1 and MAPK controls meiosis I progression and fidelity

2014 ◽  
Vol 204 (6) ◽  
pp. 891-900 ◽  
Author(s):  
Ibtissem Nabti ◽  
Petros Marangos ◽  
Jenny Bormann ◽  
Nobuaki R. Kudo ◽  
John Carroll
Keyword(s):  
Protein Kinase ◽  
Spindle Assembly Checkpoint ◽  
Mitogen Activated Protein Kinase ◽  
Cyclin Dependent Kinase ◽  
Anaphase Promoting Complex ◽  
Female Meiosis ◽  
Dual Mode ◽  
Mitogen Activated Protein ◽  
Meiosis I

Female meiosis is driven by the activities of two major kinases, cyclin-dependent kinase 1 (Cdk1) and mitogen-activated protein kinase (MAPK). To date, the role of MAPK in control of meiosis is thought to be restricted to maintaining metaphase II arrest through stabilizing Cdk1 activity. In this paper, we find that MAPK and Cdk1 play compensatory roles to suppress the anaphase-promoting complex/cyclosome (APC/C) activity early in prometaphase, thereby allowing accumulation of APC/C substrates essential for meiosis I. Furthermore, inhibition of MAPK around the onset of APC/C activity at the transition from meiosis I to meiosis II led to accelerated completion of meiosis I and an increase in aneuploidy at metaphase II. These effects appear to be mediated via a Cdk1/MAPK-dependent stabilization of the spindle assembly checkpoint, which when inhibited leads to increased APC/C activity. These findings demonstrate new roles for MAPK in the regulation of meiosis in mammalian oocytes.

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