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Related Experiment Videos

[Regional adoptive immunotherapy using activated lymphocytes]

T Ebina1, N Isono, K Murata

  • 1Division of Immunology, Research Institute Miyagi Cancer Center.

Gan to Kagaku Ryoho. Cancer & Chemotherapy
|September 1, 1996
PubMed
Summary
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PSK immunotherapy demonstrated significant antitumor effects in mice and cancer patients. Adoptive transfer of PSK-immunized spleen cells and BRM-activated killer (BAK) cells showed promise in regression and necrosis of various tumors.

Area of Science:

  • Immunology
  • Oncology
  • Biotechnology

Background:

  • PSK, a biological response modifier, has shown antitumor properties.
  • Adoptive immunotherapy and BRM-activated killer (BAK) cells are emerging cancer treatment strategies.

Purpose of the Study:

  • To evaluate the antitumor efficacy of PSK using a double-grafted tumor system in mice.
  • To assess the potential of PSK-immunized spleen cells and BAK cells in cancer treatment.

Main Methods:

  • A double-grafted tumor system in BALB/c mice was used to analyze PSK's effect.
  • Adoptive transfer of spleen cells from PSK-cured mice and treatment with BAK cells in cancer patients were performed.

Main Results:

  • PSK inhibited the growth of both treated and non-treated tumors in mice.

Related Experiment Videos

  • Adoptive transfer of PSK-immunized spleen cells led to complete tumor regression.
  • BAK cell treatment in cancer patients showed antitumor effects, including tumor necrosis and normalization of serum IAP patterns.

    • Conclusions:

    • PSK exhibits systemic antitumor activity and enhances the efficacy of adoptive immunotherapy.
    • BAK cells represent a potential therapeutic agent for various cancers, inducing immune cell infiltration and tumor regression.