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Related Concept Videos

MAPK Signaling Cascades01:07

MAPK Signaling Cascades

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Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
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Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

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The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
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cAMP-dependent Protein Kinase Pathways01:25

cAMP-dependent Protein Kinase Pathways

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Cyclic Adenosine Monophosphate (cAMP) is an essential second messenger that activates protein kinase A (PKA) and regulates various biological processes. A single epinephrine molecule binds to GPCR and activates several heterotrimeric G proteins, each stimulating multiple adenylyl cyclase, amplifying the signal, and synthesizing large numbers of cAMP molecules. Small changes in cAMP concentration affect PKA activity. The binding of four cAMP molecules induces a conformational change in PKA,...
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Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

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Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
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Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
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Mechanisms of Retrovirus-induced Cancers01:51

Mechanisms of Retrovirus-induced Cancers

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Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...
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Inhibition of Cdk Activity02:34

Inhibition of Cdk Activity

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The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
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Related Experiment Video

Updated: Sep 14, 2025

Assessment of Mitochondrial Functions and Cell Viability in Renal Cells Overexpressing Protein Kinase C Isozymes
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The MAPK Response to Virus Infection Is Modified by Probenecid.

Les P Jones1, David E Martin2, Ralph A Tripp1

  • 1Department of Infectious Diseases, University of Georgia, Athens, GA 30605, USA.

Current Issues in Molecular Biology
|July 23, 2025
PubMed
Summary
This summary is machine-generated.

Probenecid, an anti-inflammatory drug, can inhibit viral replication by targeting the mitogen-activated protein kinase (MAPK) pathway. This review explores how probenecid alters host responses to respiratory viruses like RSV.

Keywords:
MAPKc-Jun N-terminal kinases (JNKs)cell signalingextracellular signal-regulated kinases (ERKs)innate immunitymitogen-activated protein kinase p38 (p38)probenecidrespiratory syncytial virus (RSV)virus

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Area of Science:

  • Virology
  • Immunology
  • Pharmacology

Background:

  • Respiratory viruses, including respiratory syncytial virus (RSV), cause significant illness and mortality.
  • Viral replication hijacks host cell machinery, notably activating the mitogen-activated protein kinases (MAPK) pathway.
  • MAPK pathways are crucial for regulating immune and inflammatory responses upon pathogen recognition.

Purpose of the Study:

  • To review the molecular mechanisms of host response to viral infections.
  • To explore the therapeutic potential of probenecid in modulating these responses.
  • To summarize how probenecid inhibits viral replication via the MAPK pathway.

Main Methods:

  • Literature review of host-pathogen interactions.
  • Analysis of signaling cascades in viral infections.
  • Examination of probenecid's anti-inflammatory and antiviral mechanisms.

Main Results:

  • Viruses activate MAPK pathways essential for their replication.
  • Probenecid demonstrates efficacy in reducing inflammation.
  • Probenecid inhibits viral replication by targeting MAPK pathway components.

Conclusions:

  • Probenecid offers a potential therapeutic strategy against respiratory viruses.
  • Modulating MAPK pathways with probenecid can disrupt viral replication cycles.
  • Understanding host-virus interactions is key to developing novel antiviral treatments.