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Related Concept Videos

cAMP-dependent Protein Kinase Pathways01:25

cAMP-dependent Protein Kinase Pathways

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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Fluorinated N,N'-diarylureas as AMPK activators.

Vitaliy Sviripa1, Wen Zhang, Michael D Conroy

  • 1Department of Molecular and Cellular Biochemistry, College of Medicine, University of Kentucky, Lexington, KY 40536-0509, United States.

Bioorganic & Medicinal Chemistry Letters
|February 19, 2013
PubMed
Summary
This summary is machine-generated.

Researchers discovered novel fluorinated N,N'-diarylureas that potently activate AMP-activated protein kinase (AMPK) at low concentrations. These compounds show promise for treating metabolic diseases and cancer by enhancing AMPK signaling.

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Area of Science:

  • Cellular metabolism and signaling
  • Medicinal chemistry
  • Cancer biology

Background:

  • AMP-activated protein kinase (AMPK) is crucial for cellular energy homeostasis, regulating lipid synthesis and mTOR signaling.
  • AMPK is a therapeutic target for metabolic diseases like type II diabetes and obesity, and its activators show anticancer potential.
  • Existing AMPK activators, such as metformin, have limitations due to relatively low efficacy (millimolar concentrations).

Purpose of the Study:

  • To identify novel, potent activators of AMPK.
  • To investigate the therapeutic potential of these new activators in cancer.
  • To elucidate the structure-activity relationships (SAR) of novel AMPK activators.

Main Methods:

  • Screening for novel AMPK activators.
  • Structure-activity relationship (SAR) studies of identified compounds.
  • Assays to determine compound efficacy in inhibiting cancer cell proliferation.

Main Results:

  • Identification of a novel class of AMPK activators: fluorinated N,N'-diarylureas.
  • These compounds activate AMPK at significantly lower concentrations (1-3 μM) compared to existing drugs.
  • Demonstrated potent inhibition of colon cancer cell proliferation by these novel agents.

Conclusions:

  • Fluorinated N,N'-diarylureas represent a promising new class of potent AMPK activators.
  • These compounds offer potential for developing new therapeutic strategies for metabolic diseases and cancer.
  • Further research into their mechanisms and SAR can lead to optimized drug candidates.