Induction of interleukin 3 and tumor resistance by SSM, a cancer immunotherapeutic agent extracted from Mycobacterium tuberculosis

Hidetaka Sasaki, David Schmitt, Yoshiro Hayashi, Fujio Suzuki, Fujio Suzuki

Research output: Contribution to journalArticle

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Abstract

Interleukin 3 (IL-3) activity was demonstrated when inguinal lymph node cells obtained from Bacillus Calmette-Guérin-sensitized mice (BCG-ILNC) were stimulated in vitro with SSM, an immunomodulator extracted from Mycobacterium tuberculosis. The IL-3 activity was first., detected on Day 1 in culture fluids of BCG-ILNC stimulated with SSM, reached a peak on Day 3, and then gradually decreased. The activity was completely neutralized by treatment with anti-murine IL-3 monoclonal antibody (mAb). When BCG-ILNC were treated with anti-Thy 1.2 or anti-Lyt 1.2 mAb followed by complement, IL-3 was not produced in the culture fluids. However, IL-3 in the culture fluids was detected when BCG-ILNC were treated with anti-Lyt 2.2 mAb, anti-asialo-GM1, or anti-mouse immunoglobulin antiserum followed by complement. These results suggested that Lyt 1+ T-cells appeared to be required for the production of IL-3 from BCG-ILNC stimulated with SSM. In addition, low but significant IL-3 activity was also observed in sera of mice treated with SSM. However, serum IL-3 activity was not detected in mice treated with both SSM and Thy 1.2 or Lyt 1.2 mAb, whereas the activity was induced by SSM in mice treated with anti-Lyt 2.2 mAb or anti-asialo-GM1 antiserum. On the other hand, the in vivo growth of IMC tumors inoculated in BALB/c x DBA/2 F1 mice was significantly decreased by intralesional injection of culture fluids containing IL-3, as well as by SSM itself. This antitumor activity of the culture fluids was not altered when it was treated with mAbs for interleukin 1, interleukin 2, or anti-mouse γ-interferon antiserum. The antitumor activity of the fluid was only eliminated when it was treated with anti-mouse IL-3 mAb. Since nonspecific resistance to tumors in mice stimulated with SSM appears to require Lyt 1+ T-cells, these results suggest that, in part, nonspecific resistance to tumors of mice stimulated with SSM may be developed through IL-3, which was produced by Lyt 1+ T-cells after SSM stimulation.

Original languageEnglish (US)
Pages (from-to)4032-4037
Number of pages6
JournalCancer Research
Volume50
Issue number13
StatePublished - Jul 1 1990

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Interleukin-3
Mycobacterium tuberculosis
Mycobacterium bovis
Neoplasms
Monoclonal Antibodies
Immune Sera
T-Lymphocytes
Intralesional Injections
Complement C3
Groin
Immunologic Factors
Serum
Interleukin-1
Bacillus
Interferons
Interleukin-2
Immunoglobulins
Lymph Nodes

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Induction of interleukin 3 and tumor resistance by SSM, a cancer immunotherapeutic agent extracted from Mycobacterium tuberculosis. / Sasaki, Hidetaka; Schmitt, David; Hayashi, Yoshiro; Suzuki, Fujio; Suzuki, Fujio.

In: Cancer Research, Vol. 50, No. 13, 01.07.1990, p. 4032-4037.

Research output: Contribution to journalArticle

Sasaki, Hidetaka ; Schmitt, David ; Hayashi, Yoshiro ; Suzuki, Fujio ; Suzuki, Fujio. / Induction of interleukin 3 and tumor resistance by SSM, a cancer immunotherapeutic agent extracted from Mycobacterium tuberculosis. In: Cancer Research. 1990 ; Vol. 50, No. 13. pp. 4032-4037.
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abstract = "Interleukin 3 (IL-3) activity was demonstrated when inguinal lymph node cells obtained from Bacillus Calmette-Gu{\'e}rin-sensitized mice (BCG-ILNC) were stimulated in vitro with SSM, an immunomodulator extracted from Mycobacterium tuberculosis. The IL-3 activity was first., detected on Day 1 in culture fluids of BCG-ILNC stimulated with SSM, reached a peak on Day 3, and then gradually decreased. The activity was completely neutralized by treatment with anti-murine IL-3 monoclonal antibody (mAb). When BCG-ILNC were treated with anti-Thy 1.2 or anti-Lyt 1.2 mAb followed by complement, IL-3 was not produced in the culture fluids. However, IL-3 in the culture fluids was detected when BCG-ILNC were treated with anti-Lyt 2.2 mAb, anti-asialo-GM1, or anti-mouse immunoglobulin antiserum followed by complement. These results suggested that Lyt 1+ T-cells appeared to be required for the production of IL-3 from BCG-ILNC stimulated with SSM. In addition, low but significant IL-3 activity was also observed in sera of mice treated with SSM. However, serum IL-3 activity was not detected in mice treated with both SSM and Thy 1.2 or Lyt 1.2 mAb, whereas the activity was induced by SSM in mice treated with anti-Lyt 2.2 mAb or anti-asialo-GM1 antiserum. On the other hand, the in vivo growth of IMC tumors inoculated in BALB/c x DBA/2 F1 mice was significantly decreased by intralesional injection of culture fluids containing IL-3, as well as by SSM itself. This antitumor activity of the culture fluids was not altered when it was treated with mAbs for interleukin 1, interleukin 2, or anti-mouse γ-interferon antiserum. The antitumor activity of the fluid was only eliminated when it was treated with anti-mouse IL-3 mAb. Since nonspecific resistance to tumors in mice stimulated with SSM appears to require Lyt 1+ T-cells, these results suggest that, in part, nonspecific resistance to tumors of mice stimulated with SSM may be developed through IL-3, which was produced by Lyt 1+ T-cells after SSM stimulation.",
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AU - Schmitt, David

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AU - Suzuki, Fujio

AU - Suzuki, Fujio

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N2 - Interleukin 3 (IL-3) activity was demonstrated when inguinal lymph node cells obtained from Bacillus Calmette-Guérin-sensitized mice (BCG-ILNC) were stimulated in vitro with SSM, an immunomodulator extracted from Mycobacterium tuberculosis. The IL-3 activity was first., detected on Day 1 in culture fluids of BCG-ILNC stimulated with SSM, reached a peak on Day 3, and then gradually decreased. The activity was completely neutralized by treatment with anti-murine IL-3 monoclonal antibody (mAb). When BCG-ILNC were treated with anti-Thy 1.2 or anti-Lyt 1.2 mAb followed by complement, IL-3 was not produced in the culture fluids. However, IL-3 in the culture fluids was detected when BCG-ILNC were treated with anti-Lyt 2.2 mAb, anti-asialo-GM1, or anti-mouse immunoglobulin antiserum followed by complement. These results suggested that Lyt 1+ T-cells appeared to be required for the production of IL-3 from BCG-ILNC stimulated with SSM. In addition, low but significant IL-3 activity was also observed in sera of mice treated with SSM. However, serum IL-3 activity was not detected in mice treated with both SSM and Thy 1.2 or Lyt 1.2 mAb, whereas the activity was induced by SSM in mice treated with anti-Lyt 2.2 mAb or anti-asialo-GM1 antiserum. On the other hand, the in vivo growth of IMC tumors inoculated in BALB/c x DBA/2 F1 mice was significantly decreased by intralesional injection of culture fluids containing IL-3, as well as by SSM itself. This antitumor activity of the culture fluids was not altered when it was treated with mAbs for interleukin 1, interleukin 2, or anti-mouse γ-interferon antiserum. The antitumor activity of the fluid was only eliminated when it was treated with anti-mouse IL-3 mAb. Since nonspecific resistance to tumors in mice stimulated with SSM appears to require Lyt 1+ T-cells, these results suggest that, in part, nonspecific resistance to tumors of mice stimulated with SSM may be developed through IL-3, which was produced by Lyt 1+ T-cells after SSM stimulation.

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