Acta Anatomica Sinica ›› 2019, Vol. 50 ›› Issue (6): 827-830.doi: 10.16098/j.issn.0529-1356.2019.06.022

• Bioengineering • Previous Articles     Next Articles

Preparation and identification of thyroid gland decellularized biologic scaffold

WENG Jie1 HUANG Tao-tao2 WANG Zhi-yi 1,3,4* CHEN Chan5 WAN Xin-long3 ZHOU Xiao-ming4 MEI Jin3 WANG Zhi-bin3   

  1. 1.Department of Emergency Medicine, the Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang Wenzhou 3250027, China; 2. The Second Clinical Medical College, Wenzhou Medical University, Zhejiang Wenzhou 325000, China; 3. Institute of Bioscaffold Transplantation and Immunology, Wenzhou Medical University, Zhejiang Wenzhou 32500, China;  4. Department of General Practice, the Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang Wenzhou 325027, China; 5. Department of Geriatric Medicine, the First Affiliated Hospital of Wenzhou Medical University, Zhejiang Wenzhou 325000, China
  • Received:2018-09-14 Revised:2018-12-04 Online:2019-12-06 Published:2019-12-06
  • Contact: Zhiyi Wang E-mail:wzy1063@126.com

Abstract:

Objective To prepare thyroid gland decullularized biologic scaffolds by soaking with rotating and to assess the decullularized scaffolds. Methods According to random number table method, twenty New Zealand white rabbits were divided into control group and decullularized group, 10 cases in each group. The thyroid glands in decullularized group were immersed in 1% SDS and rotated at 37 ℃ for 24 hours. All thyroid gland decullularized scaffolds were rotated in deionized water to wipe off the decullularized reagent and residual DNA. HE staining, DNA concentration examination, electron microscope analysis and immunofluorescence technique were performed to indentify the characteristics of decullularized scaffolds. Results Compared to control group, the DNA concentration in the decellularized scaffold decrease significantly (P<0.01), the removal rate of DNA exceeded 90%; there were no visible cell nuclei remained, the 3D space structure and the protein components preserved well. Conclusion Soaking and rotating method can effectively wipe off the cellular components from the thyroid gland tissue, and preserve the extracellular matrix and three-dimensional structure.

Key words: Decullularization, Thyroid gland, Extracellular matrix, Immunofluorescence, Rabbit