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Sheet-like cell-cultured product for regeneration of gastrointestinal tract

A technology of sheet cells and cultures, applied in animal cells, tissue regeneration, vertebrate cells, etc., can solve problems such as perforation, and achieve the effects of promoting healing, preventing complications, and improving prognosis

Pending Publication Date: 2020-10-16
NAGASAKI UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been reported that especially in duodenal ESD, complications such as perforation occur at a rate of about 30% due to the operability of the endoscope, the thinness of the intestinal wall, etc.

Method used

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  • Sheet-like cell-cultured product for regeneration of gastrointestinal tract
  • Sheet-like cell-cultured product for regeneration of gastrointestinal tract
  • Sheet-like cell-cultured product for regeneration of gastrointestinal tract

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0191] Example 1. Fabrication of Sheet Cell Culture

[0192] (1) Sheet-shaped porcine skeletal muscle myoblast culture

[0193] The striated muscle of the pig's lower limbs was collected under general anesthesia, and the collected tissue was treated with an enzymatic digestion solution containing collagenase and trypsin to disperse into single cells. The above cells were incubated at 37°C, 5% CO 2 The cells were cultured in MCDB131 medium containing 15% FBS to confluence under the condition of , and the cells were recovered. The recovered cells were divided into 2.2×10 7 A 60mm temperature-responsive Petri dish (UpCell (R) , Cell Seed) were cultured in DMEM / F12 medium containing 20% ​​FBS for 12 hours. The temperature was then lowered to 20°C, whereby the sheet-like cell culture was peeled off from the dish and recovered. A reinforcement layer was formed from fibrin gel on the above sheet cell culture.

[0194] The sheet-shaped porcine skeletal muscle myoblast cultures...

example 2

[0197] Example 2. Production of Duodenal ESD Pig Model

[0198] Duodenal ESD was performed under general anesthesia on pigs from which striated muscle was collected in Example 1 (1), and they were used as a slice treatment group (n=5). In addition, duodenal ESD was also performed on control pigs under general anesthesia as a control group (n=7). That is, as duodenal ESD, a part of the lumen surface of the porcine duodenum was peeled off. On the serosal surface of the outer side of the duodenum corresponding to the ESD operation site (dissection site of the lumen surface of the duodenum) of pigs in the slice treatment group, so as to completely cover the dissection site of the lumen surface Paste (apply) the sheet-shaped skeletal muscle myoblast culture made in Example 1 (1). Furthermore, the pedicled omentum sheet was applied from above (outside) the adhered sheet-shaped skeletal muscle myoblast culture so as to completely cover the dissected part of the lumen surface. In...

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Abstract

Provided in the present specification are: a sheet-like cell-cultured product for promoting healing of a hollow organ having a damaged area, in particular, tissues of duodenum; a method for producingthe sheet-like cell-cultured product; a method for regenerating the damaged area of a hollow organ by using the sheet-like cell-cultured product; and the like.

Description

technical field [0001] The present invention relates to a sheet-like cell culture for treating a luminal organ having a lesion, a method for producing the sheet-like cell culture, a method for treating a luminal organ using the sheet-like cell culture, and the like. Background technique [0002] In recent years, attempts have been made to transplant various cells in order to repair damaged tissues and the like. For example, in order to repair myocardial tissue damaged by ischemic heart disease such as angina pectoris and myocardial infarction, fetal cardiomyocytes, skeletal myoblasts, mesenchymal stem cells, cardiac stem cells, ES cells, iPS cells, etc. ( Non-Patent Document 1). [0003] As part of the above-mentioned attempts, sheet-like cell cultures in which cells are formed into sheets using cell structures formed of scaffolds have been developed (Patent Document 1, Non-Patent Document 2). [0004] Regarding the application of sheet cell cultures in therapy, the follow...

Claims

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Application Information

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IPC IPC(8): A61L27/38A61L27/18A61L27/22A61L27/24A61L27/36A61L27/40A61L27/52C12N5/071C12N5/077
CPCA61L27/24A61L27/52A61L2430/22A61L27/3882A61L27/3826A61L27/225A61L27/38A61L27/222A61L27/18A61L27/3834C08L67/04A61K35/28A61K35/34A61L27/3839
Inventor 丸屋安广松本亮小林慎一朗金高贤悟江口晋大仁田贤桥口庆一大桥文哉松村匡记
Owner NAGASAKI UNIVERSITY