Scaffolds fabricated via two-photon polymerisation for regulating cell morphology and differentiation

Three-dimensional (3D) cell culture scaffolds play a key role in guiding cell fate. The fine-tunability of these scaffolds is essential for accurately replicating in vivo conditions and revealing cellular behaviours. In this study, two-photon polymerisation (TPP) technology was employed to create 3D...

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Main Authors: Zheyu Yao, Xiuzhen Zhang, Wenhui Yu, Zhen Xiao, Wenli Zhou, Dongfeng Qi, Wuhong Xin, Weilong Cao, Hongyu Zheng
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Virtual and Physical Prototyping
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Online Access:https://www.tandfonline.com/doi/10.1080/17452759.2024.2447934
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author Zheyu Yao
Xiuzhen Zhang
Wenhui Yu
Zhen Xiao
Wenli Zhou
Dongfeng Qi
Wuhong Xin
Weilong Cao
Hongyu Zheng
author_facet Zheyu Yao
Xiuzhen Zhang
Wenhui Yu
Zhen Xiao
Wenli Zhou
Dongfeng Qi
Wuhong Xin
Weilong Cao
Hongyu Zheng
author_sort Zheyu Yao
collection DOAJ
description Three-dimensional (3D) cell culture scaffolds play a key role in guiding cell fate. The fine-tunability of these scaffolds is essential for accurately replicating in vivo conditions and revealing cellular behaviours. In this study, two-photon polymerisation (TPP) technology was employed to create 3D scaffolds with woodpile and honeycomb architectures. The influence of scaffold geometry and pore dimensions on the proliferation, morphology, orientation, and differentiation of human mesenchymal stem cells (hMSCs) was investigated through multi-staining fluorescence and 3D confocal imaging technique. It was revealed that hMSCs cultured within these 3D scaffolds demonstrated higher density up to 15.04 ± 1.46 cells/100 × 100 μm2 after a 6-day culture compared to their 2D counterparts (7.47 ± 1.42 cells/100 × 100 μm2). Furthermore, hMSCs grown on the woodpile scaffolds displayed elongated morphology, with approximately 50% aligning along the columns. In contrast, hMSCs cultivated on honeycomb structures exhibited triangular and crescent cellular shapes, with a random orientation. Notably, compared to the control group, the cells on the scaffolds exhibited smaller nucleus areas, lower circularity, and aspect ratios, but these values increased as pore size increased. Furthermore, ALP staining showed a greater tendency for osteogenic differentiation with larger pore sizes. These TPP-fabricated 3D scaffolds hold immense promise for advancing understanding of cellular behaviour.
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spelling doaj-art-252847ee526b49d8b6a338e5243312bc2025-01-27T18:42:51ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672025-12-0120110.1080/17452759.2024.2447934Scaffolds fabricated via two-photon polymerisation for regulating cell morphology and differentiationZheyu Yao0Xiuzhen Zhang1Wenhui Yu2Zhen Xiao3Wenli Zhou4Dongfeng Qi5Wuhong Xin6Weilong Cao7Hongyu Zheng8School of Mechanical Engineering, Shandong University of Technology, Zibo, People’s Republic of ChinaSchool of Life Sciences and Medicine, Shandong University of Technology, Zibo, People’s Republic of ChinaSchool of Mechanical Engineering, Shandong University of Technology, Zibo, People’s Republic of ChinaSchool of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo, People’s Republic of ChinaSchool of Life Sciences and Medicine, Shandong University of Technology, Zibo, People’s Republic of ChinaSchool of Mechanical Engineering, Shandong University of Technology, Zibo, People’s Republic of ChinaAnalytical Testing Center, Shandong University of Technology, Zibo, People’s Republic of ChinaSchool of Mechanical Engineering, Shandong University of Technology, Zibo, People’s Republic of ChinaSchool of Mechanical Engineering, Shandong University of Technology, Zibo, People’s Republic of ChinaThree-dimensional (3D) cell culture scaffolds play a key role in guiding cell fate. The fine-tunability of these scaffolds is essential for accurately replicating in vivo conditions and revealing cellular behaviours. In this study, two-photon polymerisation (TPP) technology was employed to create 3D scaffolds with woodpile and honeycomb architectures. The influence of scaffold geometry and pore dimensions on the proliferation, morphology, orientation, and differentiation of human mesenchymal stem cells (hMSCs) was investigated through multi-staining fluorescence and 3D confocal imaging technique. It was revealed that hMSCs cultured within these 3D scaffolds demonstrated higher density up to 15.04 ± 1.46 cells/100 × 100 μm2 after a 6-day culture compared to their 2D counterparts (7.47 ± 1.42 cells/100 × 100 μm2). Furthermore, hMSCs grown on the woodpile scaffolds displayed elongated morphology, with approximately 50% aligning along the columns. In contrast, hMSCs cultivated on honeycomb structures exhibited triangular and crescent cellular shapes, with a random orientation. Notably, compared to the control group, the cells on the scaffolds exhibited smaller nucleus areas, lower circularity, and aspect ratios, but these values increased as pore size increased. Furthermore, ALP staining showed a greater tendency for osteogenic differentiation with larger pore sizes. These TPP-fabricated 3D scaffolds hold immense promise for advancing understanding of cellular behaviour.https://www.tandfonline.com/doi/10.1080/17452759.2024.2447934Two-photon polymerisationthree-dimensional scaffoldshuman mesenchymal stem cellscellular morphology
spellingShingle Zheyu Yao
Xiuzhen Zhang
Wenhui Yu
Zhen Xiao
Wenli Zhou
Dongfeng Qi
Wuhong Xin
Weilong Cao
Hongyu Zheng
Scaffolds fabricated via two-photon polymerisation for regulating cell morphology and differentiation
Virtual and Physical Prototyping
Two-photon polymerisation
three-dimensional scaffolds
human mesenchymal stem cells
cellular morphology
title Scaffolds fabricated via two-photon polymerisation for regulating cell morphology and differentiation
title_full Scaffolds fabricated via two-photon polymerisation for regulating cell morphology and differentiation
title_fullStr Scaffolds fabricated via two-photon polymerisation for regulating cell morphology and differentiation
title_full_unstemmed Scaffolds fabricated via two-photon polymerisation for regulating cell morphology and differentiation
title_short Scaffolds fabricated via two-photon polymerisation for regulating cell morphology and differentiation
title_sort scaffolds fabricated via two photon polymerisation for regulating cell morphology and differentiation
topic Two-photon polymerisation
three-dimensional scaffolds
human mesenchymal stem cells
cellular morphology
url https://www.tandfonline.com/doi/10.1080/17452759.2024.2447934
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