Establishment of a novel experimental model of infected anal fistula in rat

Abstract Refractory Crohn's-like enterocutaneous fistula indicates the aggressive manifestation and lead to poor prognosis of patients. The development of multidisciplinary strategies for fistula administration largely subjects to the deficiency of animal model for disease remodeling and the un...

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Main Authors: Meng Zhao, Aitong Wang, Leisheng Zhang, Hao Yu
Format: Article
Language:English
Published: BMC 2022-06-01
Series:Laboratory Animal Research
Subjects:
Online Access:https://doi.org/10.1186/s42826-022-00125-4
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author Meng Zhao
Aitong Wang
Leisheng Zhang
Hao Yu
author_facet Meng Zhao
Aitong Wang
Leisheng Zhang
Hao Yu
author_sort Meng Zhao
collection DOAJ
description Abstract Refractory Crohn's-like enterocutaneous fistula indicates the aggressive manifestation and lead to poor prognosis of patients. The development of multidisciplinary strategies for fistula administration largely subjects to the deficiency of animal model for disease remodeling and the underlying pathogenic mechanism. For the purpose, infected anal fistula model was conducted by BLV single-core electrolytic aluminum combined with dextran sodium sulfate. Notably, the inflammatory granulation tissue and inflammatory cell infiltration in the perianal tissue were arised on day 7 of the model by utilizing the Hematoxylin–eosin staining. With the aid of magnetic resonance imaging and signals of high-brightness. We intuitively observed the thickening and edema appeared in the fistula wall, which collectively suggested the formation of a fistula in the perianal area of the rat. Distinguish from the current models of anal fistula modeling including the body surface of fistula, backside of fistula and drainage wire of fistula, our model revealed multifaceted advantages such as quicker generation, higher modeling rate, preferable stability, better consistency, cost-effective, and in particular, more convenient to mimic clinical manifestations of anal fistula.
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spelling doaj.art-af9822f83f98452a8f58c08560b499d72022-12-22T00:39:16ZengBMCLaboratory Animal Research2233-76602022-06-013811410.1186/s42826-022-00125-4Establishment of a novel experimental model of infected anal fistula in ratMeng Zhao0Aitong Wang1Leisheng Zhang2Hao Yu3National Engineering Research Center of Cell Products, AmCellGene Engineering Co., LtdNational Engineering Research Center of Cell Products, AmCellGene Engineering Co., LtdInstitute of Stem Cells, Health-Biotech (Tianjin) Stem Cell Research Institute Co., Ltd.The Postdoctoral Research Station, School of Medicine, Nankai UniversityAbstract Refractory Crohn's-like enterocutaneous fistula indicates the aggressive manifestation and lead to poor prognosis of patients. The development of multidisciplinary strategies for fistula administration largely subjects to the deficiency of animal model for disease remodeling and the underlying pathogenic mechanism. For the purpose, infected anal fistula model was conducted by BLV single-core electrolytic aluminum combined with dextran sodium sulfate. Notably, the inflammatory granulation tissue and inflammatory cell infiltration in the perianal tissue were arised on day 7 of the model by utilizing the Hematoxylin–eosin staining. With the aid of magnetic resonance imaging and signals of high-brightness. We intuitively observed the thickening and edema appeared in the fistula wall, which collectively suggested the formation of a fistula in the perianal area of the rat. Distinguish from the current models of anal fistula modeling including the body surface of fistula, backside of fistula and drainage wire of fistula, our model revealed multifaceted advantages such as quicker generation, higher modeling rate, preferable stability, better consistency, cost-effective, and in particular, more convenient to mimic clinical manifestations of anal fistula.https://doi.org/10.1186/s42826-022-00125-4Anal fistula modelingDSSBLV-SCEARat model
spellingShingle Meng Zhao
Aitong Wang
Leisheng Zhang
Hao Yu
Establishment of a novel experimental model of infected anal fistula in rat
Laboratory Animal Research
Anal fistula modeling
DSS
BLV-SCEA
Rat model
title Establishment of a novel experimental model of infected anal fistula in rat
title_full Establishment of a novel experimental model of infected anal fistula in rat
title_fullStr Establishment of a novel experimental model of infected anal fistula in rat
title_full_unstemmed Establishment of a novel experimental model of infected anal fistula in rat
title_short Establishment of a novel experimental model of infected anal fistula in rat
title_sort establishment of a novel experimental model of infected anal fistula in rat
topic Anal fistula modeling
DSS
BLV-SCEA
Rat model
url https://doi.org/10.1186/s42826-022-00125-4
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AT aitongwang establishmentofanovelexperimentalmodelofinfectedanalfistulainrat
AT leishengzhang establishmentofanovelexperimentalmodelofinfectedanalfistulainrat
AT haoyu establishmentofanovelexperimentalmodelofinfectedanalfistulainrat