1
|
Zhao G, Dong Y, Ye Z, Yao S, Wang L, Zhao Y, Chen B, Liu D, Dai J, Hu Y. Vaginal reconstruction by collagen scaffolds loaded with vaginal epithelial and smooth muscle cells in pigs. Biomater Sci 2024; 12:1042-1054. [PMID: 38221811 DOI: 10.1039/d3bm01611k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
In women, a healthy and functional vagina is important for the maintenance of a good quality of life. Various factors, including congenital anomalies, cancer, trauma, infections, inflammation, or iatrogenic injuries, can lead to damage or loss of the vaginal structure, necessitating repair or replacement. Often, such reconstruction procedures involve the use of nonvaginal tissue substitutes, like segments of the large intestine or skin, which are less than ideal both anatomically and functionally. Therefore, there is an urgent need to develop new methods of vaginal reconstruction. In this study, we established a new method for isolation and expansion of vaginal epithelial and smooth muscle cells. Subsequently, collagen scaffolds designed for vaginal reconstruction were loaded with vaginal epithelial and smooth muscle cells in vitro and tested in vivo using the vaginal excision pig model. The results showed that the collagen scaffold loaded with vaginal epithelial and smooth muscle cells significantly promotes the reconstruction of the vagina compared with small intestinal submucosa (SIS) membrane or bare collagen scaffold. Notably, the reconstructed vaginal tissues exhibit remarkable similarity to their normal counterparts, encompassing not only the vaginal epithelium and smooth muscle but also the intricate networks of blood vessels and nerves. These compelling results underscore the feasibility of a tissue engineering approach in vaginal reconstruction, offering promising prospects for improving the quality of life in affected individuals.
Collapse
Affiliation(s)
- Guangfeng Zhao
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Yishan Dong
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing 210000, China
| | - Ziying Ye
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Simin Yao
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Limin Wang
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Yannan Zhao
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing 100190, China.
| | - Bing Chen
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing 100190, China.
| | - Dan Liu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Jianwu Dai
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 3 Nanyitiao, Zhongguancun, Beijing 100190, China.
| | - Yali Hu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| |
Collapse
|
2
|
Svistushkin VM, Timashev PS, Lobacheva VV, Zolotova AV, Svistushkin MV, Kosheleva NV, Shevchik EA, Nikiforova GN, Shpichka AI, Nikiforova AN, Tychkina IA. [Closing of nasal septum perforation using adipose stromal vascular fraction: an experimental study]. Vestn Otorinolaringol 2024; 89:21-27. [PMID: 38805459 DOI: 10.17116/otorino20248902121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Nasal septal perforation (NSP) is a complex problem in otorhinolaryngology, which leads to impaired nasal breathing and dryness in the nose. This reduces the patient's quality of life and leads to psychological discomfort. The treatment of nasal septum perforation is selected taking into account the clinical manifestations, perforation parameters and general condition of the patient. Currently, a large number of different surgical methods have been described in order to closing the defect of nasal septum. To date, there is no universally accepted method for closing NSP, which stimulates the search and development of new treatment options. OBJECTIVE Under experimental conditions, to study a new method for closing nasal septum perforation using a collagen scaffold together with adipose stromal vascular fraction containing multipotent mesenchymal stromal cells. MATERIAL AND METHODS The experiment was carried out on a model of nasal septum perforation in 24 male rabbits divided into four groups, depending on the construct, implanted into the defect zone: the 1st group was the control group - without the introduction of implantation material; the 2nd group - collagen scaffold without adipose stromal vascular fraction; the 3rd group - collagen scaffold with xenogenic adipose stromal vascular fraction; the 4th group - collagen scaffold with allogeneic adipose stromal vascular fraction with further dynamic evaluation of endoscopic control on day 14, after 1 month, 3 months, and 6 months. At month 6, the animals were removed from the experiment, followed by morphological examination in color with hematoxylin and eosin, as well as safranin and methyl green. RESULTS As a result of the experiment using adipose stromal vascular fraction of allogeneic and xenogenic origin, closing of perforation of the nasal septum of a rabbit for 3 months of dynamic endoscopic control, as well as according to morphological research, was demonstrated. CONCLUSION Our study showed that the use of adipose stromal vascular fraction containing not only endothelial cells and pericytes, but also multipotent mesenchymal stromal cells in combination with a collagen scaffold closes the perforation of the nasal septum in a rabbit, without increasing the risk of violations of habitual vital activity.
Collapse
Affiliation(s)
- V M Svistushkin
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - P S Timashev
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - V V Lobacheva
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - A V Zolotova
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - M V Svistushkin
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - N V Kosheleva
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - E A Shevchik
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - G N Nikiforova
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - A I Shpichka
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - A N Nikiforova
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - I A Tychkina
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| |
Collapse
|
3
|
Zhao X, Gu R, Zhao Y, Wei F, Gao X, Zhuang Y, Xiao Z, Shen H, Dai J. Adult spinal cord tissue transplantation combined with local tacrolimus sustained-release collagen hydrogel promotes complete spinal cord injury repair. Cell Prolif 2023; 56:e13451. [PMID: 36916024 DOI: 10.1111/cpr.13451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/26/2023] [Accepted: 03/03/2023] [Indexed: 03/16/2023] Open
Abstract
The strategy of replacing a completely damaged spinal cord with allogenic adult spinal cord tissues (aSCs) can potentially repair complete spinal cord injury (SCI) in combination with immunosuppressive drugs, such as tacrolimus (Tac), which suppress transplant rejection and improve graft survival. However, daily systemic administration of immunosuppressive agents may cause harsh side effects. Herein, a localized, sustained Tac-release collagen hydrogel (Col/Tac) was developed to maximize the immune regulatory efficacy but minimize the side effects of Tac after aSC transplantation in complete SCI recipients. Thoracic aSCs of rat donors were transplanted into the complete thoracic spinal cord transection rat recipients, after which Col/Tac hydrogel was implanted. The Tac-encapsulated collagen hydrogel exhibited suitable mechanical properties and long-term sustained Tac release behaviour. After Col/Tac hydrogel implantation in SCI rats with aSC transplantation, the recipients' survival rate significantly improved and the side effects on tissues were reduced compared with those with conventional Tac medication. Moreover, treatment with the Col/Tac hydrogel exhibited similarly reduced immune rejection levels by regulating immune responses and promoted neurogenesis compared to daily Tac injections, and thus improved functional restoration. Localized delivery of immunosuppressive agents by the Col/Tac hydrogel may be a promising strategy for overcoming immune rejection of transplants, with significant potential for clinical application in the future.
Collapse
Affiliation(s)
- Xinhao Zhao
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of NanoTech and NanoBionics, Chinese Academy of Sciences, Suzhou, China.,China-Japan Union Hospital of Jilin University, Changchun, China.,State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Rui Gu
- China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yannan Zhao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Feng Wei
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of NanoTech and NanoBionics, Chinese Academy of Sciences, Suzhou, China.,School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China
| | - Xu Gao
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of NanoTech and NanoBionics, Chinese Academy of Sciences, Suzhou, China.,China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yan Zhuang
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of NanoTech and NanoBionics, Chinese Academy of Sciences, Suzhou, China.,School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China
| | - Zhifeng Xiao
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - He Shen
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of NanoTech and NanoBionics, Chinese Academy of Sciences, Suzhou, China.,School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China
| | - Jianwu Dai
- Key Laboratory for Nano-Bio Interface Research, Division of Nanobiomedicine, Suzhou Institute of NanoTech and NanoBionics, Chinese Academy of Sciences, Suzhou, China.,State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.,School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, China
| |
Collapse
|
4
|
Shen H, Chen G, Pei R, Wang Q. A special issue focusing on CAS key laboratory of nano-bio interface at Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO). Biomed Mater 2023; 18. [PMID: 36912753 DOI: 10.1088/1748-605x/acbf17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 02/24/2023] [Indexed: 03/14/2023]
Affiliation(s)
- He Shen
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123 Jiangsu, People's Republic of China
| | - Guangcun Chen
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123 Jiangsu, People's Republic of China
| | - Renjun Pei
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123 Jiangsu, People's Republic of China
| | - Qiangbin Wang
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123 Jiangsu, People's Republic of China
| |
Collapse
|