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29 Results Found

  • Article
  • Open Access
7 Citations
3,372 Views
12 Pages

Dephosphorylation of LjMPK6 by Phosphatase LjPP2C is Involved in Regulating Nodule Organogenesis in Lotus japonicus

  • Zhongyuan Yan,
  • Jingjing Cao,
  • Qiuling Fan,
  • Hongmin Chao,
  • Xiaomin Guan,
  • Zhongming Zhang and
  • Deqiang Duanmu

The mitogen-activated protein kinase (MAPK) LjMPK6 is a phosphorylation target of SIP2, a MAPK kinase that interacts with SymRK (symbiosis receptor-like kinase) for regulation of legume-rhizobia symbiosis. Both LjMPK6 and SIP2 are required for nodula...

  • Review
  • Open Access
27 Citations
6,040 Views
21 Pages

26 October 2021

Mitogen-activated protein kinases (MAPKs) are essential for proper cell functioning as they regulate many molecular effectors. Careful regulation of MAPKs is therefore required to avoid MAPK pathway dysfunctions and pathologies. The mammalian genome...

  • Article
  • Open Access
20 Citations
4,067 Views
21 Pages

Differential Role of Threonine and Tyrosine Phosphorylation in the Activation and Activity of the Yeast MAPK Slt2

  • Gema González-Rubio,
  • Ángela Sellers-Moya,
  • Humberto Martín and
  • María Molina

23 January 2021

The Mitogen-Activated Protein Kinase (MAPK) Slt2 is central to signaling through the yeast Cell Wall Integrity (CWI) pathway. MAPKs are regulated by phosphorylation at both the threonine and tyrosine of the conserved TXY motif within the activation l...

  • Review
  • Open Access
58 Citations
8,046 Views
14 Pages

Pseudophosphatases as Regulators of MAPK Signaling

  • Emma Marie Wilber Hepworth and
  • Shantá D. Hinton

22 November 2021

Mitogen-activated protein kinase (MAPK) signaling pathways are highly conserved regulators of eukaryotic cell function. These enzymes regulate many biological processes, including the cell cycle, apoptosis, differentiation, protein biosynthesis, and...

  • Article
  • Open Access
10 Citations
3,244 Views
20 Pages

26 January 2021

Protein phosphorylation cascades are universal in cell signaling. While kinome diversity allows specific phosphorylation events, relatively few phosphatases dephosphorylate key signaling proteins. Fungal mitogen activated protein kinases (MAPK), in c...

  • Review
  • Open Access
13 Citations
5,596 Views
19 Pages

Dual-Specificity Phosphatases in Neuroblastoma Cell Growth and Differentiation

  • Caroline E. Nunes-Xavier,
  • Laura Zaldumbide,
  • Olaia Aurtenetxe,
  • Ricardo López-Almaraz,
  • José I. López and
  • Rafael Pulido

Dual-specificity phosphatases (DUSPs) are important regulators of neuronal cell growth and differentiation by targeting proteins essential to neuronal survival in signaling pathways, among which the MAP kinases (MAPKs) stand out. DUSPs include the MA...

  • Review
  • Open Access
62 Citations
6,951 Views
13 Pages

The Dual-Specificity Phosphatase 10 (DUSP10): Its Role in Cancer, Inflammation, and Immunity

  • Marta Jiménez-Martínez,
  • Konstantinos Stamatakis and
  • Manuel Fresno

Cancer is one of the most diagnosed diseases in developed countries. Inflammation is a common response to different stress situations including cancer and infection. In those processes, the family of mitogen-activated protein kinases (MAPKs) has an i...

  • Review
  • Open Access
165 Citations
15,550 Views
17 Pages

Mitogen-activated protein kinases (MAPKs) are key regulators of signal transduction and cell responses. Abnormalities in MAPKs are associated with multiple diseases. Dual-specificity phosphatases (DUSPs) dephosphorylate many key signaling molecules,...

  • Review
  • Open Access
1,940 Views
29 Pages

28 August 2025

Dual-specificity protein phosphatases (DUSPs) are a family of proteins that dephosphorylate both phospho-serine/threonine and phospho-tyrosine residues of Mitogen-Activated Protein Kinases (MAPKs). MAPKs are involved in a large number of cellular pro...

  • Feature Paper
  • Article
  • Open Access
5 Citations
5,084 Views
26 Pages

17 October 2021

Eukaryotes utilize distinct mitogen/messenger-activated protein kinase (MAPK) pathways to evoke appropriate responses when confronted with different stimuli. In yeast, hyperosmotic stress activates MAPK Hog1, whereas mating pheromones activate MAPK F...

  • Review
  • Open Access
98 Citations
7,121 Views
13 Pages

MAPK Cascades and Transcriptional Factors: Regulation of Heavy Metal Tolerance in Plants

  • Shaocui Li,
  • Xiaojiao Han,
  • Zhuchou Lu,
  • Wenmin Qiu,
  • Miao Yu,
  • Haiying Li,
  • Zhengquan He and
  • Renying Zhuo

In nature, heavy metal (HM) stress is one of the most destructive abiotic stresses for plants. Heavy metals produce toxicity by targeting key molecules and important processes in plant cells. The mitogen-activated protein kinase (MAPK) cascade transf...

  • Article
  • Open Access
5 Citations
3,525 Views
18 Pages

Cellular Protein Phosphatase 2A Regulates Cell Survival Mechanisms in Influenza A Virus Infection

  • Vanessa Gerlt,
  • Juliane Mayr,
  • Juliana Del Sarto,
  • Stephan Ludwig and
  • Yvonne Boergeling

16 October 2021

Influenza A viruses (IAVs) are respiratory pathogens that are able to hijack multiple cellular mechanisms to drive their replication. Consequently, several viral and cellular proteins undergo posttranslational modifications such as dynamic phosphoryl...

  • Article
  • Open Access
8 Citations
3,668 Views
14 Pages

ERK Dephosphorylation through MKP1 Deacetylation by SIRT1 Attenuates RAS-Driven Tumorigenesis

  • Ok-Seon Kwon,
  • Haeseung Lee,
  • Yun-Jeong Kim,
  • Hyuk-Jin Cha,
  • Na-Young Song and
  • Mi-Ok Lee

8 April 2020

The role of Situin 1 (SIRT1) in tumorigenesis is still controversial due to its wide range of substrates, including both oncoproteins and tumor suppressors. A recent study has demonstrated that SIRT1 interferes in the Kirsten rat sarcoma viral oncoge...

  • Article
  • Open Access
5 Citations
2,251 Views
18 Pages

Cerebroprotective Effect of 17β-Estradiol Replacement Therapy in Ovariectomy-Induced Post-Menopausal Rats Subjected to Ischemic Stroke: Role of MAPK/ERK1/2 Pathway and PI3K-Independent Akt Activation

  • María C. Burguete,
  • Teresa Jover-Mengual,
  • María Castelló-Ruiz,
  • Mikahela A. López-Morales,
  • José M. Centeno,
  • Alicia Aliena-Valero,
  • Enrique Alborch,
  • Germán Torregrosa and
  • Juan B. Salom

19 September 2023

Despite the overwhelming advances in the understanding of the pathogenesis of stroke, a devastating disease affecting millions of people worldwide, currently there are only a limited number of effective treatments available. Preclinical and clinical...

  • Article
  • Open Access
17 Citations
4,593 Views
15 Pages

The Selective Acetamidine-Based iNOS Inhibitor CM544 Reduces Glioma Cell Proliferation by Enhancing PARP-1 Cleavage In Vitro

  • Marialucia Gallorini,
  • Cristina Maccallini,
  • Alessandra Ammazzalorso,
  • Pasquale Amoia,
  • Barbara De Filippis,
  • Marialuigia Fantacuzzi,
  • Letizia Giampietro,
  • Amelia Cataldi and
  • Rosa Amoroso

Gliomas are the most aggressive adult primary brain tumors. Expression of inducible Nitric Oxide Synthase has been reported as a hallmark of chemoresistance in gliomas and several studies have reported that inhibition of inducible Nitric Oxide Syntha...

  • Article
  • Open Access
3 Citations
1,088 Views
14 Pages

21 March 2025

Colorectal cancer is currently the third most common malignancy, and the toxic side effects of clinical therapeutic drugs often influence treatment outcomes. Marine-derived quinolone alkaloids exhibit various biological activities and are particularl...

  • Article
  • Open Access
6 Citations
2,227 Views
18 Pages

Inhibitory Effects of Ehretia tinifolia Extract on the Excessive Oxidative and Inflammatory Responses in Lipopolysaccharide-Stimulated Mouse Kupffer Cells

  • Jae Sung Lim,
  • Sung Ho Lee,
  • Hyosuk Yun,
  • Da Young Lee,
  • Namki Cho,
  • Guijae Yoo,
  • Jeong Uk Choi,
  • Kwang Youl Lee,
  • Tran The Bach and
  • Su-Jin Park
  • + 1 author

22 September 2023

Ehretia tinifolia (E. tinifolia) L., an evergreen tree with substantial biological activity, including antioxidant and anti-inflammatory effects, has been used in many herbal and traditional medicines. To elucidate its antioxidant and anti-inflammato...

  • Article
  • Open Access
11 Citations
4,184 Views
25 Pages

Divergent Molecular and Cellular Responses to Low and High-Dose Ionizing Radiation

  • Bharath Sampadi,
  • Sylvia Vermeulen,
  • Branislav Mišovic,
  • Jan J. Boei,
  • Tanveer S. Batth,
  • Jer-Gung Chang,
  • Michelle T. Paulsen,
  • Brian Magnuson,
  • Joost Schimmel and
  • Hanneke Kool
  • + 8 authors

27 November 2022

Cancer risk after ionizing radiation (IR) is assumed to be linear with the dose; however, for low doses, definite evidence is lacking. Here, using temporal multi-omic systems analyses after a low (LD; 0.1 Gy) or a high (HD; 1 Gy) dose of X-rays, we s...

  • Review
  • Open Access
3 Citations
3,562 Views
18 Pages

Regulation of the Activity of the Dual Leucine Zipper Kinase by Distinct Mechanisms

  • Kyra-Alexandra Köster,
  • Marten Dethlefs,
  • Jorge Duque Escobar and
  • Elke Oetjen

11 February 2024

The dual leucine zipper kinase (DLK) alias mitogen-activated protein 3 kinase 12 (MAP3K12) has gained much attention in recent years. DLK belongs to the mixed lineage kinases, characterized by homology to serine/threonine and tyrosine kinase, but exe...

  • Article
  • Open Access
20 Citations
6,115 Views
40 Pages

31 July 2021

Reactive oxygen species (ROS) regulate several aspects of cell physiology in filamentous fungi including the antioxidant response and development. However, little is known about the signaling pathways involved in these processes. Here, we report Aspe...

  • Article
  • Open Access
9 Citations
2,127 Views
15 Pages

6-Pentyl-α-Pyrone from Trichoderma gamsii Exert Antioxidant and Anti-Inflammatory Properties in Lipopolysaccharide-Stimulated Mouse Macrophages

  • Jae Sung Lim,
  • Joo-Hyun Hong,
  • Da Young Lee,
  • Xiangying Li,
  • Da Eun Lee,
  • Jeong Uk Choi,
  • Kwang Youl Lee,
  • Ki Hyun Kim and
  • Young-Chang Cho

22 November 2023

Filamentous fungi produce several beneficial secondary metabolites, including bioactive compounds, food additives, and biofuels. Trichoderma, which is a teleomorphic Hypocrea that falls under the taxonomic groups Ascomycota and Dikarya, is an extensi...

  • Article
  • Open Access
21 Citations
5,162 Views
12 Pages

8 October 2020

The objective of this study was to assess the inhibitory effect of the flavonoid aromadendrin on T cell activity to identify a non-cytotoxic immunosuppressive reagent. Conventional and qualitative PCR, MTT assays, flow cytometry and Western blotting...

  • Article
  • Open Access
15 Citations
4,769 Views
32 Pages

Identification of a Potent Cytotoxic Pyrazole with Anti-Breast Cancer Activity That Alters Multiple Pathways

  • Denisse A. Gutierrez,
  • Lisett Contreras,
  • Paulina J. Villanueva,
  • Edgar A. Borrego,
  • Karla Morán-Santibañez,
  • Jessica D. Hess,
  • Rebecca DeJesus,
  • Manuel Larragoity,
  • Ana P. Betancourt and
  • Jonathon E. Mohl
  • + 6 authors

12 January 2022

In this study, we identified a novel pyrazole-based derivative (P3C) that displayed potent cytotoxicity against 27 human cancer cell lines derived from different tissue origins with 50% cytotoxic concentrations (CC50) in the low micromolar and nanomo...

  • Article
  • Open Access
24 Citations
5,354 Views
30 Pages

27 November 2021

Protein phosphorylation plays an important role in mediating signal transduction in cold response in plants. To better understand how plants sense and respond to the early temperature drop, we performed data-independent acquisition (DIA) method-based...

  • Article
  • Open Access
8 Citations
2,534 Views
20 Pages

Synaptotagmin 1 Suppresses Colorectal Cancer Metastasis by Inhibiting ERK/MAPK Signaling-Mediated Tumor Cell Pseudopodial Formation and Migration

  • Jianyun Shi,
  • Wenjing Li,
  • Zhenhua Jia,
  • Ying Peng,
  • Jiayi Hou,
  • Ning Li,
  • Ruijuan Meng,
  • Wei Fu,
  • Yanlin Feng and
  • Lifei Wu
  • + 6 authors

3 November 2023

Although synaptotagmin 1 (SYT1) has been identified participating in a variety of cancers, its role in colorectal cancer (CRC) remains an enigma. This study aimed to demonstrate the effect of SYT1 on CRC metastasis and the underlying mechanism. We fi...

  • Review
  • Open Access
48 Citations
10,244 Views
19 Pages

28 June 2023

Endoplasmic reticulum (ER) stress and its adaptive mechanism, the unfolded protein response (UPR), are triggered by the accumulation of unfolded and misfolded proteins. During osteoclastogenesis, a large number of active proteins are synthesized. Whe...

  • Article
  • Open Access
8 Citations
3,222 Views
17 Pages

Bis(maltolato)oxovanadium(IV) Induces Angiogenesis via Phosphorylation of VEGFR2

  • Laura Parma,
  • Hendrika A.B. Peters,
  • Maria E. Johansson,
  • Saray Gutiérrez,
  • Henk Meijerink,
  • Sjef de Kimpe,
  • Margreet R. de Vries and
  • Paul H.A. Quax

VEGFR2 and VEGF-A play a pivotal role in the process of angiogenesis. VEGFR2 activation is regulated by protein tyrosine phosphatases (PTPs), enzymes that dephosphorylate the receptor and reduce angiogenesis. We aim to study the effect of PTPs blocka...

  • Article
  • Open Access
21 Citations
6,830 Views
28 Pages

The Cell Cycle Checkpoint System MAST(L)-ENSA/ARPP19-PP2A is Targeted by cAMP/PKA and cGMP/PKG in Anucleate Human Platelets

  • Elena J. Kumm,
  • Oliver Pagel,
  • Stepan Gambaryan,
  • Ulrich Walter,
  • René P. Zahedi,
  • Albert Smolenski and
  • Kerstin Jurk

18 February 2020

The cell cycle is controlled by microtubule-associated serine/threonine kinase-like (MASTL), which phosphorylates the cAMP-regulated phosphoproteins 19 (ARPP19) at S62 and 19e/α-endosulfine (ENSA) at S67and converts them into protein phosphatas...

  • Article
  • Open Access
3 Citations
6,395 Views
12 Pages

Decreased STAT3 Phosphorylation Mediates Cell Swelling in Ammonia-Treated Astrocyte Cultures

  • Arumugam R. Jayakumar,
  • Kevin M. Curtis,
  • Kiran S. Panickar,
  • Nagarajarao Shamaladevi and
  • Michael D. Norenberg

2 December 2016

Brain edema, due largely to astrocyte swelling, and the subsequent increase in intracranial pressure and brain herniation, are major complications of acute liver failure (ALF). Elevated level of brain ammonia has been strongly implicated in the devel...