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Types of Stem Cells used in Stem Cell Therapy
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Development of Combinatorial Therapeutics for Spinal Cord Injury using Stem Cell Delivery
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Cell and Hydrogel-Integrated Therapies for Intervertebral Disc Regeneration.

Yuanzhang Tang1, Xiaojie Lin2, Avik Som3

  • 1Pain Management Department, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510000, China.

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|September 9, 2025
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Intervertebral disc degeneration (IDD) causes low back pain. Hydrogel-assisted cell therapy offers a promising regenerative approach by supporting cell survival and function within the degenerated disc environment.

Keywords:
cell therapyhydrogel‐assistedintervertebral disc degenerationtussue regeneration

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Orthopedics

Background:

  • Intervertebral disc degeneration (IDD) is a primary cause of low back pain (LBP), leading to significant disability and healthcare expenses.
  • Current treatments for IDD often manage symptoms rather than address root causes like nucleus pulposus (NP) cell decline and reduced extracellular matrix (ECM) synthesis.
  • Cell therapy presents a potential solution by replacing or activating cells to enhance ECM production, but transplanted cells face challenges in the harsh IDD microenvironment.

Purpose of the Study:

  • To review the fundamental concepts of IDD progression and current treatment strategies.
  • To explore the potential of stem/progenitor cell therapy for IDD.
  • To highlight the role of hydrogels as delivery systems in enhancing cell therapy for IDD.

Main Methods:

  • Review of existing literature on IDD, cell therapy, and hydrogel applications.
  • Analysis of hydrogel properties relevant to supporting cell therapy in IDD.
  • Discussion of various hydrogel-based cell therapy methods and recent advancements.

Main Results:

  • Hydrogels mimic the ECM, providing a supportive niche for transplanted cells in IDD.
  • Hydrogels facilitate controlled delivery of therapeutics and biologics, improving cell survival and function.
  • Various hydrogel formulations are being explored for effective IDD treatment strategies.

Conclusions:

  • Hydrogel-assisted cell therapy shows significant regenerative potential for IDD.
  • Addressing limitations and challenges in current hydrogel-based approaches is crucial for future clinical translation.
  • Further research into hydrogel-biomaterial interactions and in vivo efficacy is warranted for advancing IDD treatment.