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Challenges in validating candidate therapeutic targets in cancer

Jeffrey Settleman1, Charles L Sawyers2, Tony Hunter3

  • 1Calico Life Sciences, South San Francisco, United States.

Elife
|February 9, 2018
PubMed

Insights

Recent studies challenge the role of MELK (maternal embryonic leucine-rich protein kinase) as a cancer therapeutic target. This highlights issues with common research tools used in cancer drug discovery.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Maternal embryonic leucine-rich protein kinase (MELK) has been proposed as a promising therapeutic target for various human cancers.
  • Over 30 publications have supported MELK's role in cancer progression and its potential as a drug target.

Purpose of the Study:

  • To critically evaluate the evidence supporting MELK as a therapeutic target in human cancer.
  • To investigate the reliability of research tools used in validating MELK's role in cancer.

Main Methods:

  • Review of recent scientific literature and published reports.
  • Analysis of experimental data and research methodologies used to study MELK.
  • Assessment of the validity of commonly used research tools in cancer target validation.

Main Results:

  • Three recent reports provide compelling evidence against MELK being a viable therapeutic target.
  • These studies reveal significant caveats and limitations associated with the research tools previously used to support MELK's candidacy.
  • The findings question the established understanding of MELK's function in cancer.

Conclusions:

  • The therapeutic potential of MELK in human cancer is questionable.
  • Caution is advised regarding the interpretation of results obtained using certain research tools in cancer target validation.
  • Further research is needed to identify reliable therapeutic targets and validated tools for cancer treatment.
Keywords:
cancer biologymelkprotein kinasereplicationreproducibilityscientific publishing

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