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Conditional Knockdown of Gene Expression in Cancer Cell Lines to Study the Recruitment of Monocytes/Macrophages to the Tumor Microenvironment
10:59

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Published on: November 23, 2017

Control of tumor cell biology through regulation of peptide hormone processing

A M Treston1, J L Mulshine, F Cuttitta

  • 1Biotherapy Section, National Cancer Institute, Bethesda, Md 20895.

Journal of the National Cancer Institute. Monographs
|January 1, 1992
PubMed

Insights

Targeting peptide hormone processing enzymes, particularly those for alpha-amidation, could inhibit tumor cell growth. This strategy offers a novel approach for chemointervention by disrupting autocrine neuropeptide synthesis.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Background:

  • Cellular processes are regulated by peptide hormones.
  • Tumor cells exhibit uncontrolled growth due to autocrine/paracrine signaling.
  • Bioactive peptide hormones require posttranslational processing.

Purpose of the Study:

  • To explore peptide hormone processing as a target for cancer therapy.
  • To investigate the role of posttranslational processing enzymes in tumor progression.
  • To evaluate the potential of inhibiting autocrine neuropeptide synthesis for chemointervention.

Main Methods:

  • Analysis of posttranslational processing pathways for peptide hormones.
  • Identification of enzymes involved in peptide alpha-amidation.
  • Evaluation of enzyme inhibition as a strategy against tumor cell growth.

Main Results:

  • Specific enzymes in peptide hormone production, like those for alpha-amidation, are crucial.
  • These enzymes represent potential targets for therapeutic intervention.
  • Inhibiting autocrine neuropeptide synthesis may regulate tumor cell progression.

Conclusions:

  • Disrupting posttranslational processing of peptide hormones offers a rational basis for cancer chemointervention.
  • Targeting enzymes like those responsible for peptide alpha-amidation is a promising strategy.
  • Inhibition of autocrine neuropeptide synthesis may be a viable therapeutic approach for tumors.

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