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Hematopoietic growth factors are molecules that regulate the differentiation rate of hematopoietic stem cells (HSCs). Erythropoietin (EPO), primarily produced by the kidneys, plays a crucial role in erythrocyte production. When oxygen levels in the blood are low, EPO is released into the bloodstream, reaching the bone marrow, where it stimulates HSCs to differentiate and mature into erythrocytes, which are vital for oxygen transport.
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Erythropoietin-producing hepatocellular carcinoma receptor (Eph) and its ligand, Eph receptor-interacting protein (Ephrin) were first discovered in the human carcinoma cell line, hence the name. Ephrin-Eph interaction guides cells to reach their appropriate location in adult tissues. They also play an essential role in the immune system by helping in immune cell migration, adhesion, and activation. Based on their structure and function, Eph is divided into two classes — EphA and EphB.
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Hemoperfusion and hemofiltration are critical techniques in medical treatments to eliminate accumulated drugs, metabolites, and electrolytes from the bloodstream. These methods are particularly vital in cases of accidental poisoning and drug overdose.Hemoperfusion involves passing blood through an adsorbent material to remove unwanted substances. The main adsorbents used in hemoperfusion include activated charcoal and Amberlite resins. Activated charcoal can adsorb both polar and nonpolar...
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Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
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Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
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Hemopexin and Cancer.

Veronica Fiorito1, Emanuela Tolosano1

  • 1Molecular Biotechnology Center, Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy.

International Journal of Molecular Sciences
|January 21, 2022
PubMed
Summary

Hemopexin, a protein binding heme, is crucial in heme disorders. This review explores its understudied role in cancer, highlighting heme

Area of Science:

  • Biochemistry
  • Oncology
  • Molecular Biology

Background:

  • Hemopexin (H Px) is the primary plasma protein for heme transport.
  • H Px is vital in managing heme-related pathologies.
  • Its role in cancer remains largely unexplored.

Purpose of the Study:

  • To review current research on hemopexin's involvement in cancer.
  • To emphasize the significance of heme in tumor biology.
  • To encourage future investigations into H Px and cancer.

Main Methods:

  • Literature review of studies on hemopexin and cancer.
  • Analysis of heme's emerging role in tumor development.
  • Synthesis of existing data to identify research gaps.
Keywords:
cancerhemehemopexin

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Main Results:

  • Hemopexin's known functions in heme homeostasis.
  • Evidence suggesting H Px's potential impact on tumor growth and metastasis.
  • Identification of specific cancer types where H Px may be relevant.

Conclusions:

  • Hemopexin's role in cancer is an emerging field.
  • Further research is needed to elucidate H Px's mechanisms in tumorigenesis.
  • Targeting H Px could offer novel therapeutic strategies for cancer.