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Targeted Cancer Therapies02:57

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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
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Therapeutic Apheresis Using a β2-Microglobulin Removal Column Reduces Circulating Tumor Cell Count.

Yasuo Komura1, Shintarou Kimura2, Ayana Takaura1

  • 1Rinku Medical Clinic, 2F Medical Rinku Port, 3-41 Rinku Ouraiminami, Osaka 598-0047, Japan.

Journal of Personalized Medicine
|June 27, 2024
PubMed
Summary
This summary is machine-generated.

This study shows that Filtor, a novel β2-microglobulin (β2M) removal column, effectively reduces β2M levels and circulating tumor cells (CTCs). This suggests Filtor can prevent cancer metastasis and recurrence.

Keywords:
circulating tumor cellmetastasisrecurrencetherapeutic apheresisβ2-microglobulin

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Area of Science:

  • Oncology
  • Nephrology
  • Biomedical Engineering

Background:

  • Elevated serum β2-microglobulin (β2M) indicates impaired kidney function and is linked to diseases like cancer and autoimmune disorders.
  • High β2M levels can promote cancer metastasis by inducing epithelial-mesenchymal transition (EMT).
  • The therapeutic value of targeting β2M for cancer treatment is not well understood.

Purpose of the Study:

  • To evaluate the efficacy of Filtor, a polymethyl methacrylate fiber-based β2M removal column.
  • To determine if Filtor can reduce β2M levels and inhibit cancer cell-induced EMT and metastasis.
  • To assess the impact of Filtor on circulating tumor cells (CTCs) as a measure of metastasis.

Main Methods:

  • Therapeutic apheresis was performed using the Filtor column on three patients with advanced cancers.
  • Patients included those with sinonasal neuroendocrine carcinoma, colorectal cancer, and pancreatic ductal adenocarcinoma.
  • Serum β2M levels and CTC counts were measured before and after treatment.

Main Results:

  • Serum β2M levels and CTC counts significantly decreased immediately and 4 weeks post-treatment.
  • A marked reduction in CTC count was observed immediately after apheresis, suggesting direct trapping of CTCs by Filtor.
  • The study demonstrated successful reduction of β2M and CTCs, indicating potential anti-metastatic effects.

Conclusions:

  • Therapeutic apheresis with Filtor effectively lowers serum β2M and CTC counts.
  • Filtor shows promise in preventing cancer metastasis and recurrence by directly removing CTCs.
  • Targeting β2M with Filtor represents a potential new strategy in cancer therapy.