Cited by 256Monoclonal and Polyclonal Antibodies ResearchImmunotherapy and Immune ResponsesToxin Mechanisms and Immunotoxins

MT110: A novel bispecific single-chain antibody construct with high efficacy in eradicating established tumors

Brischwein, Klaus, Schlereth, Bernd, Guller, Benjamin, Steiger, Carola, Wolf, Andreas, Lutterbuese, Ralf, Offner, Sonja, Locher, Mathias +10 more·2006·Molecular Immunology

Abstract

We have developed a novel single-chain Ep-CAM-/CD3-bispecific single-chain antibody construct designated MT110. MT110 redirected unstimulated human peripheral T cells to induce the specific lysis of every Ep-CAM-expressing tumor cell line tested. MT110 induced a costimulation independent polyclonal activation of CD4- and CD8-positive T cells as seen by de novo expression of CD69 and CD25, and secretion of interferon gamma, tumor necrosis factor alpha, and interleukins 2, 4 and 10. CD8-positive T cells made the major contribution to redirected tumor cell lysis by MT110. With a delay, CD4-positive cells could also contribute presumably as consequence of a dramatic upregulation of granzyme B expression. MT110 was highly efficacious in a NOD/SCID mouse model with subcutaneously growing SW480 human colon cancer cells. Five daily doses of 1 microg MT110 on days 0-4 completely prevented tumor outgrowth in all mice treated. The bispecific antibody construct also led to a durable eradication of established tumors in all mice treated with 1 microg doses of MT110 on days 8-12 after tumor inoculation. Finally, MT110 could eradicate patient-derived metastatic ovarian cancer tissue growing under the skin of NOD/SCID mice. MT110 appears as an attractive bispecific antibody candidate for treatment of human Ep-CAM-overexpressing carcinomas.

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Crossref · 10.1016/j.molimm.2005.07.034

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  • In vitro characterizations of MT110 recapitulated the results obtained with MT103 on tumor cell lines, demonstrating the generality of the BiTE format.

    “In vitro characterizations of MT110 have recapitulated the results obtained with MT103 on tumor cell lines, thereby demonstrating the generality of the BiTE format. 55”
  • In NOD/SCID mice, as little as 100 ng of MT110 can prevent tumor outgrowth after injection of a 1:1 ratio of human colon carcinoma cells mixed with unstimulated human peripheral mononuclear cells.

    “A study in NOD/SCID mice demonstrated that as little as 100 ng of MT110 can prevent tumor outgrowth after an injection of a 1:1 ratio of human colon carcinoma cells mixed with unstimulated human peripheral mononuclear cells.”

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Authors
Brischwein, K., Schlereth, B., Guller, B., Steiger, C., Wolf, A., Lutterbuese, R., Offner, S., Locher, M., Urbig, T., Raum, T., Kleindienst, P., Wimberger, P., Kimmig, R., Fichtner, I., Kufer, P., Hofmeister, R., da Silva, A. J., & Baeuerle, P. A.
Affiliations
University of Duisburg-Essen (DE)
Corresponding author
Baeuerle, Patrick A.
Venue
Molecular Immunology
Publisher
Elsevier BV
Published
2006-03
Volume
43
Issue
8
Pages
1129-1143
ISSN
0161-5890 (ISSN-L)
OpenAlex
W1993325062
Cited by
256
References
64
Citations by year
2026: 4 · 2025: 5 · 2024: 6 · 2023: 14 · 2022: 17 · 2021: 18 · 2020: 14 · 2019: 13 · 2018: 10 · 2017: 18 · 2016: 11 · 2015: 22 · 2014: 15 · 2013: 11 · 2012: 16
FWCI
5.35
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Immunology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Life Sciences › Immunology and Microbiology › Immunology › Toxin Mechanisms and Immunotoxins
Keywords
bispecific single-chain antibody, EpCAM, CD3, T cell redirection, adoptive T cell therapy, CD8+ T cells, CD4+ T cells, granzyme B, tumor cell lysis, colon cancer, metastatic ovarian cancer, NOD/SCID mouse model, tumor eradication, interferon-gamma, CD69, CD25
MeSH terms
Animals, Antibodies, Monoclonal, Antibody Specificity, Cytotoxicity, Immunologic, Disease Models, Animal, Dose-Response Relationship, Drug, Humans, Kinetics, Lymphocyte Activation, Neoplasms, Recombinant Proteins, CD4-Positive T-Lymphocytes, Mice, SCID, Mice, Inbred NOD, CD3 Complex, Antibodies, Bispecific, CD8-Positive T-Lymphocytes, Antigens, CD19, Cell Line, Tumor, Mice, Single-Chain Antibodies

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