Cited by 122Fibroblast Growth Factor ResearchMonoclonal and Polyclonal Antibodies ResearchDiabetes Treatment and Management

Development of a Novel Long-Acting Antidiabetic FGF21 Mimetic by Targeted Conjugation to a Scaffold Antibody

Huang, Jie, Ishino, Tetsuya, Chen, Gang, Rolzin, Paul, Osothprarop, Trina F., Retting, Kelsey, Li, Lingna, Jin, Ping +10 more·2013·The Journal of Pharmacology and Experimental Therapeutics

Abstract

Fibroblast growth factor (FGF)21 improves insulin sensitivity, reduces body weight, and reverses hepatic steatosis in preclinical species. We generated long-acting FGF21 mimetics by site-specific conjugation of the protein to a scaffold antibody. Linking FGF21 through the C terminus decreased bioactivity, whereas bioactivity was maintained by linkage to selected internal positions. In mice, these CovX-Bodies retain efficacy while increasing half-life up to 70-fold compared with wild-type FGF21. A preferred midlinked CovX-Body, CVX-343, demonstrated enhanced in vivo stability in preclinical species, and a single injection improved glucose tolerance for 6 days in ob/ob mice. In diet-induced obese mice, weekly doses of CVX-343 reduced body weight, blood glucose, and lipids levels. In db/db mice, CVX-343 increased glucose tolerance, pancreatic β-cell mass, and proliferation. CVX-343, created by linkage of the CovX scaffold antibody to the engineered residue A129C of FGF21 protein, demonstrated superior preclinical pharmacodynamics by extending serum half-life of FGF21 while preserving full therapeutic functionality.

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Crossref · 10.1124/jpet.113.204420

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35 of 35 references verified0 citation errors · 0 not checkable

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  • Disrupting leptin signaling using ob/ob or db/db mice abrogates the beneficial effects of FGF21 in lowering body weight in response to extended FGF21 administration.

    “In addition, disrupting leptin signaling using ob/ob or db/db mice abrogates the beneficial effects of FGF21 in lowering body weight in response to extended FGF21 administration (3, 45, 51, 67, 139).”
  • The half-life of FGF21 is approximately 0.4-2 hours, depending on the species and method of delivery.

    “The half-life of FGF21 is approximately 0.4–2 hours, depending on the species and method of delivery (51, 65, 142).”

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Authors
Huang, J., Ishino, T., Chen, G., Rolzin, P., Osothprarop, T. F., Retting, K., Li, L., Jin, P., Matin, M. J., Huyghe, B., Talukdar, S., Bradshaw, C. W., Palanki, M., Violand, B. N., Woodnutt, G., Lappe, R. W., Ogilvie, K., & Levin, N.
Affiliations
Pfizer (United States) (US)
Venue
The Journal of Pharmacology and Experimental Therapeutics
Publisher
Elsevier BV
Published
2013-08
Volume
346
Issue
2
Pages
270-280
ISSN
0022-3565 (ISSN-L)
OpenAlex
W2029880965
Cited by
121
References
36
Citations by year
2026: 4 · 2025: 9 · 2024: 8 · 2023: 5 · 2022: 9 · 2021: 8 · 2020: 11 · 2019: 7 · 2018: 9 · 2017: 11 · 2016: 9 · 2015: 19 · 2014: 9 · 2013: 3
FWCI
5.97
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Pharmacology and Experimental Therapeutics (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fibroblast Growth Factor Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
Keywords
FGF21, protein conjugation, long-acting drugs, protein half-life extension, insulin sensitivity, glucose tolerance, obesity, type 2 diabetes, ob/ob mice, db/db mice, hepatic steatosis
MeSH terms
Animals, Antibodies, Body Weight, Cysteine, Delayed-Action Preparations, Diabetes Mellitus, Energy Metabolism, Fibroblast Growth Factors, Humans, Hypoglycemic Agents, Immunoglobulin Fab Fragments, Lysine, Macaca fascicularis, Male, Mice, Obese, Recombinant Proteins, Rats, Sprague-Dawley, Molecular Mimicry, 3T3-L1 Cells, Insulin-Secreting Cells, Mice, Rats

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