1
|
Nomura K, Fiala T, Wennemers H. Carbohydrate Co-Solutes Stabilize Collagen Triple Helices. Chembiochem 2024; 25:e202300860. [PMID: 38233350 DOI: 10.1002/cbic.202300860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 01/19/2024]
Abstract
Carbohydrates are common co-solutes for the stabilization of proteins. The effect of carbohydrate solutions on the stability of collagen, the most abundant protein in mammals, is, however, underexplored. In this work, we studied the thermal stability of collagen triple helices derived from a molecularly defined collagen model peptide (CMP), Ac-(Pro-Hyp-Gly)7 -NH2 , in solutions of six common mono- and disaccharides. We show that the carbohydrates stabilize the collagen triple helix in a concentration-dependent manner, with an increase of the melting temperature of up to 17 °C. In addition, we show that the stabilizing effect is similar for all studied sugars, including trehalose, which is otherwise considered a privileged bioprotectant. The results provided insight into the effects of sugar co-solutes on collagen triple helices and can aid the selection of storage environments for collagen-based materials and probes.
Collapse
Affiliation(s)
- Kota Nomura
- Laboratory of Organic Chemistry, D-CHAB, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Tomas Fiala
- Laboratory of Organic Chemistry, D-CHAB, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Helma Wennemers
- Laboratory of Organic Chemistry, D-CHAB, ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| |
Collapse
|
2
|
Zhang J, Sui P, Yang W, Shirshin EA, Zheng M, Wei B, Xu C, Wang H. Site-specific modification of N-terminal α-amino groups of succinylated collagen. Int J Biol Macromol 2023; 225:310-317. [PMID: 36356876 DOI: 10.1016/j.ijbiomac.2022.11.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/23/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022]
Abstract
Polymer based protein engineering provides an attractive strategy to endow novel properties to protein and overcome the inherent limitations of both counterparts. The exquisite control of site and density of attached polymers on the proteins is crucial for the bioactivities and properties of the protein-polymer bioconjugates, but is still a challenge. Collagen is the major structural protein in extracellular matrix of animals. Based on the advancements of polymer-based protein engineering, collagen bioconjugates has been widely fabricated and applied as biomaterials. However, the site-specific synthesis of well-defined collagen-polymer bioconjugates is still not achieved. Herein, a versatile strategy for the specific modification of N-terminal α-amino groups in collagen was developed. Firstly, all reactive amino groups of tropocollagen (collagen with telopeptides) were protected by succinic anhydride. Then, the telopeptides were digested to give the active N-terminal α-amino groups, which were subsequently attached with poly(N-isopropylacrylamide) (PNIPAAm) via "grafting from" method based on the atom transfer radical polymerization (ATRP). The site-specific N-terminal PNIPAAm modified succinylated collagen was prepared and its structure, thermal responsive behaviour, and properties was explored.
Collapse
Affiliation(s)
- Juntao Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Peishan Sui
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Wendian Yang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Evgeny A Shirshin
- Department of Physics, M. V. Lomonosov Moscow State University, Leninskie gory 1/2, 119991 Moscow, Russia
| | - Mingming Zheng
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China; Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Wuhan, Hubei, China
| | - Benmei Wei
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Chengzhi Xu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Haibo Wang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China.
| |
Collapse
|
3
|
Zhang J, Liu W, Sui P, Nan J, Wei B, Xu C, He L, Zheng M, Wang H. Fabrication of a stepwise degradable hybrid bioscaffold based on the natural and partially denatured collagen. Int J Biol Macromol 2022; 213:416-426. [PMID: 35661667 DOI: 10.1016/j.ijbiomac.2022.05.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/24/2022] [Accepted: 05/29/2022] [Indexed: 11/05/2022]
Abstract
As a major component of extracellular matrixes (ECMs), collagen is an attractive biomaterial to fabricate porous scaffold for tissue engineering due to their similarity to the in vivo static microenvironment. However, the collagen-based porous scaffolds were difficult to mimic the dynamically remolded porous structure of ECM during the cell proliferation and tissue development, and always have poor mechanical property and not easy to handle. Here, natural collagen and partially denatured collagen was used to prepare the stepwise degradable hybrid bioscaffold with suitable mechanical property and dynamically remolded inner porous structure, which is desirable for the applications of tissue engineering. The collagen-based microporous scaffold was first prepared and used as physical support, then, the mechanical strength of which was reinforced by the import of the partially denatured collagen to give the hybrid bioscaffold. The fabrication conditions of the hybrid scaffolds were optimized, of which the thermal stability, mechanical property, and swelling property was explored. The stepwise enzymatic degradation process and the corresponding porous structure variation of the hybrid scaffold was confirmed by SEM and cell culture assays.
Collapse
Affiliation(s)
- Juntao Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Wei Liu
- School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, Hubei, 430023, China
| | - Peishan Sui
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Jie Nan
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Benmei Wei
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Chengzhi Xu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Lang He
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China
| | - Mingming Zheng
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China; Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, No. 2 Xudong second Road, Wuhan, Hubei 430062, China
| | - Haibo Wang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China.
| |
Collapse
|