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Thioredoxin and hematologic malignancies.

Ningfei An1, Yubin Kang2

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|June 30, 2014
PubMed
Summary

Thioredoxin (Trx) protein is crucial for cell health and cancer development. Targeting Trx shows promise for treating hematologic malignancies and improving stem cell transplantation outcomes.

Keywords:
ApoptosisCancerCytokineDrug resistanceHematopoietic stem cell transplantationHematopoietic stem cellsInflammationReactive oxygen speciesThioredoxinTumorigenesis

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Background:

  • Thioredoxin (Trx) is an essential oxidoreductase involved in cellular redox balance and signaling.
  • Trx plays dual roles intracellularly (antioxidant, signaling) and extracellularly (growth factor-like activity).
  • Overexpression of Trx is linked to tumorigenesis, promoting cancer cell survival and angiogenesis.

Purpose of the Study:

  • To provide an overview of Trx isoforms, functions, and compartmentation.
  • To discuss the role of Trx in hematologic malignancies.
  • To summarize recent findings on Trx's role in hematopoietic stem cell expansion and transplantation.

Main Methods:

  • Literature review of Trx functions and roles in cancer.
  • Analysis of Trx involvement in hematologic malignancies.
  • Summary of experimental data on Trx in hematopoietic stem cell transplantation.

Main Results:

  • Trx alleviates oxidative stress and regulates cellular pathways.
  • Trx acts as a proto-oncogene, promoting cancer progression and inhibiting apoptosis.
  • Trx is vital for long-term repopulating hematopoietic stem cells.

Conclusions:

  • Trx is a key regulator in both normal cellular functions and cancer development.
  • Inhibitors of the Trx pathway offer potential therapeutic strategies for cancer.
  • Trx modulation is a promising approach to enhance hematopoietic reconstitution after stem cell transplantation.