Department of Bioengineering and Biotechnology, Faculty of Medical Engineering, Polytechnic University of Bucharest, 011061 Bucharest, Romania.
Department of Morphological Sciences, Cell and Molecular Biology and Histology, Carol Davila University of Medicine and Pharmacy, 050474 Bucharest, Romania.
Int J Mol Sci. 2022 Jun 24;23(13):7017. doi: 10.3390/ijms23137017.
This review article explores the telocytes' roles in inflammatory bowel diseases (IBD), presenting the mechanisms and hypotheses related to epithelial regeneration, progressive fibrosis, and dysmotility as a consequence of TCs' reduced or absent number. Based on the presented mechanisms and hypotheses, we aim to provide a functional model to illustrate TCs' possible roles in the normal and pathological functioning of the digestive tract. TCs are influenced by the compression of nearby blood vessels and the degree of fibrosis of the surrounding tissues and mediate these processes in response. The changes in intestinal tube vascularization induced by the movement of the food bowl, and the consequent pH changes that show an anisotropy in the thickness of the intestinal tube wall, have led to the identification of a pattern of intestinal tube development based on telocytes' ability to communicate and modulate surrounding cell functions. In the construction of the theoretical model, given the predictable occurrence of colic in the infant, the two-layer arrangement of the nerve plexuses associated with the intestinal tube was considered to be incompletely adapted to the motility required with a diversified diet. There is resulting evidence of possible therapeutic targets for diseases associated with changes in local nerve tissue development.
这篇综述文章探讨了间质细胞在炎症性肠病(IBD)中的作用,提出了与上皮再生、进行性纤维化和运动障碍相关的机制和假说,这些都是 TCs 数量减少或缺失的结果。基于提出的机制和假说,我们旨在提供一个功能模型,以说明 TCs 在消化道正常和病理功能中的可能作用。TCs 受到附近血管的压迫和周围组织纤维化程度的影响,并对此做出反应进行调解。食物碗的运动引起的肠道管血管变化,以及随之而来的 pH 值变化,表现出肠道管壁厚度的各向异性,这导致了基于间质细胞能够进行沟通和调节周围细胞功能的能力的肠道管发育模式的确定。在理论模型的构建中,考虑到婴儿中可预测的绞痛发生,与肠道相关的神经丛的两层排列被认为不完全适应多样化饮食所需的运动。这为与局部神经组织发育变化相关的疾病的可能治疗靶点提供了证据。