GDF15 FUSION PROTEINS AND USES THEREOF

Provided are GDF15 fusion proteins and uses thereof. The fusion protein comprises an Fc variant and a GDF15 active domain, wherein the Fc variant has amino acid substitutions at position 356 and/or position 439 of the IgG Fc according to EU numbering and still has the ability to form homodimer. By f...

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Hauptverfasser: CHEN, Xiaofeng, HUANG, Limei, GONG, Qingwei, CAO, Rongbo, LI, Jing, YAN, Xingguo, XIAO, Lin, ZENG, Junnan, LI, Wenjia, WEI, Xiling, YAN, Jiangyu, HUANG, Danxia, LI, Zhaofeng
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creator CHEN, Xiaofeng
HUANG, Limei
GONG, Qingwei
CAO, Rongbo
LI, Jing
YAN, Xingguo
XIAO, Lin
ZENG, Junnan
LI, Wenjia
WEI, Xiling
YAN, Jiangyu
HUANG, Danxia
LI, Zhaofeng
description Provided are GDF15 fusion proteins and uses thereof. The fusion protein comprises an Fc variant and a GDF15 active domain, wherein the Fc variant has amino acid substitutions at position 356 and/or position 439 of the IgG Fc according to EU numbering and still has the ability to form homodimer. By fusing the Fc variant with the GDF15 active domain, the Fc-GDF15 fusion protein has significantly improved physicochemical properties and recombinant expression levels, has in vitro activity equivalent to or better than natural GDF15 molecules, and has significantly prolonged in vivo circulating half-life, which can support the dosing frequency of once every two weeks or even once a month. L'invention concerne des protéines de fusion GDF15 et leurs utilisations. La protéine de fusion comprend un variant Fc et un domaine actif GDF15, le variant Fc ayant des substitutions d'acides aminés en position 356 et/ou en position 439 de l'IgG Fc selon la numérotation EU et ayant encore la capacité de former un homodimère. Par fusion du variant Fc avec le domaine actif GDF15, la protéine de fusion Fc-GDF15 présente des propriétés physico-chimiques et des niveaux d'expression recombinants significativement améliorés, a une activité in vitro équivalente ou meilleure que les molécules de GDF15 naturelles, et a une demi-vie circulante in vivo significativement prolongée, qui peut supporter la fréquence de dosage d'une fois toutes les deux semaines ou même une fois par mois.
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subjects CHEMISTRY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PEPTIDES
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
title GDF15 FUSION PROTEINS AND USES THEREOF
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