A bivalent, bispecific Dab-Fc antibody molecule for dual targeting of HER2 and HER3

Dual targeting of surface receptors with bispecific antibodies is attracting increasing interest in cancer therapy. Here, we present a novel bivalent and bispecific antagonistic molecule (Dab-Fc) targeting human epidermal growth factors 2 and 3 (HER2 and HER3) derived from the Db-Ig platform, which...

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Main Authors: Alexander Rau (Author), Katharina Kocher (Author), Mirjam Rommel (Author), Lennart Kühl (Author), Maximilian Albrecht (Author), Hannes Gotthard (Author), Nadine Aschmoneit (Author), Bettina Noll (Author), Monilola A. Olayioye (Author), Roland E. Kontermann (Author), Oliver Seifert (Author)
Format: Book
Published: Taylor & Francis Group, 2021-01-01T00:00:00Z.
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042 |a dc 
100 1 0 |a Alexander Rau  |e author 
700 1 0 |a Katharina Kocher  |e author 
700 1 0 |a Mirjam Rommel  |e author 
700 1 0 |a Lennart Kühl  |e author 
700 1 0 |a Maximilian Albrecht  |e author 
700 1 0 |a Hannes Gotthard  |e author 
700 1 0 |a Nadine Aschmoneit  |e author 
700 1 0 |a Bettina Noll  |e author 
700 1 0 |a Monilola A. Olayioye  |e author 
700 1 0 |a Roland E. Kontermann  |e author 
700 1 0 |a Oliver Seifert  |e author 
245 0 0 |a A bivalent, bispecific Dab-Fc antibody molecule for dual targeting of HER2 and HER3 
260 |b Taylor & Francis Group,   |c 2021-01-01T00:00:00Z. 
500 |a 10.1080/19420862.2021.1902034 
500 |a 1942-0870 
500 |a 1942-0862 
520 |a Dual targeting of surface receptors with bispecific antibodies is attracting increasing interest in cancer therapy. Here, we present a novel bivalent and bispecific antagonistic molecule (Dab-Fc) targeting human epidermal growth factors 2 and 3 (HER2 and HER3) derived from the Db-Ig platform, which was developed for the generation of multivalent and multispecific antibody molecules. Dab-Fc comprises the variable domains of the anti-HER2 antibody trastuzumab and the anti-HER3 antibody 3-43 assembled into a diabody-like structure stabilized by CH1 and CL domains and further fused to a human γ1 Fc region. The resulting Dab-Fc 2 × 3 molecule retained unhindered binding to both antigens and was able to bind both antigens sequentially. In cellular experiments, the Dab-Fc 2 × 3 molecule strongly bound to different tumor cell lines expressing HER2 and HER3 and was efficiently internalized. This was associated with potent inhibition of the proliferation and migration of these tumor cell lines. Furthermore, IgG-like pharmacokinetics and anti-tumoral activity were demonstrated in a xenograft tumor model of the gastric cancer cell-line NCI-N87. These results illustrate the suitability of our versatile Db-Ig platform technology for the generation of bivalent bispecific molecules, which has been successfully used here for the dual targeting of HER2 and HER3. 
546 |a EN 
690 |a Bispecific antibody 
690 |a diabody-ig 
690 |a Db-Ig 
690 |a dual targeting 
690 |a HER2 
690 |a HER3 
690 |a Therapeutics. Pharmacology 
690 |a RM1-950 
690 |a Immunologic diseases. Allergy 
690 |a RC581-607 
655 7 |a article  |2 local 
786 0 |n mAbs, Vol 13, Iss 1 (2021) 
787 0 |n https://www.tandfonline.com/doi/10.1080/19420862.2021.1902034 
787 0 |n https://doaj.org/toc/1942-0862 
787 0 |n https://doaj.org/toc/1942-0870 
856 4 1 |u https://doaj.org/article/8f87b491057b4795a191a891a563a0e7  |z Connect to this object online.