Interrelationship between angiogenesis, inflammation and oxidative stress in Indian patients with multiple myeloma

S Joshi1, N Gupta1, R Khan1

  • 1Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, 110029, India.

Abstract

Insights

This study reveals that elevated angiogenesis and inflammation markers, alongside reduced oxidative stress, are strongly associated with multiple myeloma (MM) progression. These factors collectively create a bone marrow microenvironment conducive to cancer cell growth.

Area of Science:

  • Hematology
  • Oncology
  • Molecular Biology

Background:

  • Multiple myeloma (MM) is a bone marrow malignancy driven by clonal plasma cells.
  • The bone marrow microenvironment is shaped by angiogenic factors, proteases, reactive oxygen species, and inflammatory cytokines.
  • Previous research highlighted individual roles of angiogenesis, inflammation, and oxidative stress in MM, but their interplay remains understudied.

Purpose of the Study:

  • To investigate the combined contribution of angiogenesis, inflammation, and oxidative stress to the MM bone marrow microenvironment.
  • To explore the interrelationships between key molecular markers in MM patients.

Main Methods:

  • Circulatory levels of VEGF, angiopoietin-2 (Ang-2), IL-6, and TNF-α were measured.
  • Activities of superoxide dismutase (SOD) and glutathione peroxidase (GPx) were assessed.
  • Correlation and regression analyses were performed on 62 MM patients and 50 healthy controls.

Main Results:

  • MM patients exhibited higher VEGF, Ang-2, IL-6, and TNF-α levels compared to controls.
  • MM patients showed decreased SOD and GPx activity.
  • A significant association was found between these molecular markers and disease severity.

Conclusions:

  • Angiogenesis, inflammation, and oxidative stress are interconnected in MM.
  • These factors collectively promote the growth, survival, and proliferation of malignant plasma cells within the bone marrow.
  • Understanding this interplay is crucial for developing targeted MM therapies.

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