Collagen-Based Hydrogels: Volume II

A special issue of Gels (ISSN 2310-2861).

Deadline for manuscript submissions: closed (31 May 2021) | Viewed by 11164

Special Issue Editor


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Guest Editor
Department of Materials Science & Engineering, Stanford University, Stanford, CA 94305, USA
Interests: bioprinting; biofabrication; tissue/organ engineering; disease modeling
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Special Issue Information

Dear Colleagues,

Collagen is the most abundant protein in the body. Collagen-based hydrogels and hybrids thereof have been extensively used in tissue/organ engineering and drug discovery in past decades. Applications in tissue/organ engineering include vascular grafts, bone and cartilage substitutes, corneal tissue, skin, and dental pulp. In drug discovery, collagen-based hydrogels have been used as platforms for cancer research and in the modeling of other diseases in vitro. Advances in biomanufacturing methods such as 3D/4D bioprinting and biofabrication have attracted attention regarding the development of collagen-based hydrogels as bioinks suitable to these technologies. Intelligent, stimuli-responsive, and reversibly crosslinkable collagen-based hydrogels with self-healing properties were recently used as injectable hydrogels for drug delivery and regenerative medicine, as bioinks for biomanufacturing and tissue engineering, and as in vitro models to study mechanobiological details at the cell–biomaterial interface. This Special Issue on “Collagen-Based Hydrogels” invites the submission of original research, opinions, and review articles on topics including the use of collagen-based hydrogels in in vitro, in situ, and in vivo studies in the fields of tissue/organ engineering, disease modeling, and drug discovery.

Dr. Daniela Filipa Duarte Campos
Guest Editor

Manuscript Submission Information

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Keywords

  • Collagen hydrogel
  • Responsive hydrogel
  • Hybrid hydrogel
  • Tissue/organ engineering
  • Disease modeling
  • Drug discovery
  • Bioprinting
  • Biofabrication
  • In vitro/in situ/in vivo

Related Special Issue

Published Papers (2 papers)

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Research

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15 pages, 4601 KiB  
Article
A Collagen-Mimetic Organic-Inorganic Hydrogel for Cartilage Engineering
by Laurine Valot, Marie Maumus, Luc Brunel, Jean Martinez, Muriel Amblard, Danièle Noël, Ahmad Mehdi and Gilles Subra
Gels 2021, 7(2), 73; https://doi.org/10.3390/gels7020073 - 15 Jun 2021
Cited by 12 | Viewed by 2905
Abstract
Promising strategies for cartilage regeneration rely on the encapsulation of mesenchymal stromal cells (MSCs) in a hydrogel followed by an injection into the injured joint. Preclinical and clinical data using MSCs embedded in a collagen gel have demonstrated improvements in patients with focal [...] Read more.
Promising strategies for cartilage regeneration rely on the encapsulation of mesenchymal stromal cells (MSCs) in a hydrogel followed by an injection into the injured joint. Preclinical and clinical data using MSCs embedded in a collagen gel have demonstrated improvements in patients with focal lesions and osteoarthritis. However, an improvement is often observed in the short or medium term due to the loss of the chondrocyte capacity to produce the correct extracellular matrix and to respond to mechanical stimulation. Developing novel biomimetic materials with better chondroconductive and mechanical properties is still a challenge for cartilage engineering. Herein, we have designed a biomimetic chemical hydrogel based on silylated collagen-mimetic synthetic peptides having the ability to encapsulate MSCs using a biorthogonal sol-gel cross-linking reaction. By tuning the hydrogel composition using both mono- and bi-functional peptides, we succeeded in improving its mechanical properties, yielding a more elastic scaffold and achieving the survival of embedded MSCs for 21 days as well as the up-regulation of chondrocyte markers. This biomimetic long-standing hybrid hydrogel is of interest as a synthetic and modular scaffold for cartilage tissue engineering. Full article
(This article belongs to the Special Issue Collagen-Based Hydrogels: Volume II)
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Review

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35 pages, 4016 KiB  
Review
Modeling the Mechanobiology of Cancer Cell Migration Using 3D Biomimetic Hydrogels
by Xabier Morales, Iván Cortés-Domínguez and Carlos Ortiz-de-Solorzano
Gels 2021, 7(1), 17; https://doi.org/10.3390/gels7010017 - 12 Feb 2021
Cited by 23 | Viewed by 7711
Abstract
Understanding how cancer cells migrate, and how this migration is affected by the mechanical and chemical composition of the extracellular matrix (ECM) is critical to investigate and possibly interfere with the metastatic process, which is responsible for most cancer-related deaths. In this article [...] Read more.
Understanding how cancer cells migrate, and how this migration is affected by the mechanical and chemical composition of the extracellular matrix (ECM) is critical to investigate and possibly interfere with the metastatic process, which is responsible for most cancer-related deaths. In this article we review the state of the art about the use of hydrogel-based three-dimensional (3D) scaffolds as artificial platforms to model the mechanobiology of cancer cell migration. We start by briefly reviewing the concept and composition of the extracellular matrix (ECM) and the materials commonly used to recreate the cancerous ECM. Then we summarize the most relevant knowledge about the mechanobiology of cancer cell migration that has been obtained using 3D hydrogel scaffolds, and relate those discoveries to what has been observed in the clinical management of solid tumors. Finally, we review some recent methodological developments, specifically the use of novel bioprinting techniques and microfluidics to create realistic hydrogel-based models of the cancer ECM, and some of their applications in the context of the study of cancer cell migration. Full article
(This article belongs to the Special Issue Collagen-Based Hydrogels: Volume II)
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