Evidence map›Paper›PMID 42658403›Full record

ArticleTissue engineering and regenerative medicine2026

Peptide Dissolved in Alkaline Buffer with Blocking Significantly Enhances Performance of Synthetic Peptide-Displaying Surfaces in Supporting Human Pluripotent Stem Cell Culture.

Shengqin Ma, Liying Qin, Shaodong Wang, Ting Meng, Zhengyan Zhao, Maoying Liu, Chuan Zhang, Fang Wu, Ping Zhou

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Article in Tissue engineering and regenerative medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Shengqin Ma *School and Hospital of Stomatology, Lanzhou University, No.222 Tianshui South Road, Chengguan District, Lanzhou, 730000, Gansu Province, People's Republic of China.
Liying Qin *School of Stomatology, Gansu Health Vocational College, No.1666 Jiulongjiang Street, Gaolan County, Lanzhou, 730207, Gansu Province, People's Republic of China.
Shaodong WangSchool and Hospital of Stomatology, Lanzhou University, No.222 Tianshui South Road, Chengguan District, Lanzhou, 730000, Gansu Province, People's Republic of China.
Ting MengSchool and Hospital of Stomatology, Lanzhou University, No.222 Tianshui South Road, Chengguan District, Lanzhou, 730000, Gansu Province, People's Republic of China.
Zhengyan ZhaoSchool and Hospital of Stomatology, Lanzhou University, No.222 Tianshui South Road, Chengguan District, Lanzhou, 730000, Gansu Province, People's Republic of China.
Maoying LiuSchool of Basic, Medical Sciences, Lanzhou University, No.222 Tianshui South Road, Chengguan District, Lanzhou, 730000, Gansu Province, People's Republic of China.
Chuan ZhangGansu Provincial Maternity and Child Care Hospital/Gansu Provincial Central Hospital, Gansu Clinical Medical Research Center of Default Defects and Rare Diseases, Lanzhou, 730050, Gansu Province, People's Republic of China. zhangchuan0404@163.com.
Fang WuThe Second Hospital and Clinical Medical School, Lanzhou University, No.82 Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu Province, People's Republic of China. 15818150553@163.com.
Ping ZhouSchool and Hospital of Stomatology, Lanzhou University, No.222 Tianshui South Road, Chengguan District, Lanzhou, 730000, Gansu Province, People's Republic of China. zhoup@lzu.edu.cn.ORCID http://orcid.org/0000-0002-6128-3951

Funding

CSA West China Clinical Research Fund CSA-W2024-11Fundamental Research Funds for the Central Universities lzujbky-2021-ey14Fundamental Research Funds for the Central Universities lzujbky-2022-kb03Gansu Province Health Industry Planning Project GSWSQNPY2025-19Gansu Province Health Industry Research Project GSWSKY2023-70Hospital Research Support Fund Project GMCCH2024-2-2Joint Research Fund of Gansu Province 24JRRA945Joint Research Fund of Gansu Province 24JRRA948Lanzhou Science and Technology Plan Project 2025-2-151Lanzhou University Hospital of Stomatology Research Support Fund lzukqky-2023-t07Lanzhou University Innovation and Entrepreneurship Cultivation Project cxcy2024010Natural Science Foundation of Gansu Province 22YF7FA017Program for Jiangsu Provincial Excellent Scientific and Technological Innovation Team CY2025-QN-A04Regional Fund of the National Natural Science Foundation of China 82560331
6 · The paper itself

Abstract

backgroundHuman pluripotent stem cells (hPSCs) offer vast potential for cellular therapies due to their unique abilities in self-renewal and differentiation. However, the reliance on animal-derived Matrigel in conventional cell culture limits clinical translation, and developing chemically defined synthetic surfaces remains a key technical challenge.

methodsBased on our previously established synthetic polydopamine-based peptide-displaying surfaces, this study systematically optimized each fabrication step, including substrate selection, raw material screening (dopamine, carboxymethyl chitosan), reaction conditions, post-conjugation medium blocking, and peptide-dissolving buffer systems. Molecular docking was performed to analyze peptide-integrin αVβ5 interactions, and findings were verified using alginate-gelatin hydrogel and Maleylated-BSA coatings.

resultsCompared with commercial plates, pure polystyrene plates showed better abilities in sustaining cell culture, and the optimal raw materials for dopamine and carboxymethyl chitosan as well as their ideal reaction conditions were identified. Interestingly, not only does medium blocking after peptide conjugation play a crucial role, but the use of alkaline peptide-dissolving buffers also provides a significant advantage in supporting hPSCs adhesion and self-renewal. Molecular docking revealed enhanced peptide-integrin αVβ5 binding energetics under alkaline conditions. The optimized peptide-displaying surface demonstrated superior performance in supporting hPSCs culture and differentiation.

conclusionOur study reveals several previously unknown critical factors in the preparation of synthetic peptide-displaying surfaces. The optimized protocol improves hPSC culture performance and provides a reliable foundation for advancing chemically defined, animal component-free coatings toward commercial and clinical applications.

Indexed as

Alkaline bufferBlockingChemically definedHuman pluripotent stem cellsPeptideSelf-renewal

Identifiers

PMID42658403

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.