期刊
LIFE-BASEL
卷 12, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/life12050703
关键词
systemic sclerosis; Raynaud's phenomenon; nailfold capillaroscopy; animal models; fibrosis; vasculopathy
Systemic sclerosis is an autoimmune disease characterized by inflammation, vasculopathy, and fibrosis. Despite the development of various animal models, none fully replicate all aspects of the disease. Nailfold capillaroscopy, widely used in humans, has potential applications in animal models for studying vasculopathy and developing novel treatment options.
Systemic sclerosis (SSc) is an autoimmune disease with three pathogenic hallmarks, i.e., inflammation, vasculopathy, and fibrosis. A wide plethora of animal models have been developed to address the complex pathophysiology and for the development of possible anti-fibrotic treatments. However, no current model comprises all three pathological mechanisms of the disease. To highlight the lack of a complete model, a review of some of the most widely used animal models for SSc was performed. In addition, to date, no model has accomplished the recreation of primary or secondary Raynaud's phenomenon, a key feature in SSc. In humans, nailfold capillaroscopy (NFC) has been used to evaluate secondary Raynaud's phenomenon and microvasculature changes in SSc. Being a non-invasive technique, it is widely used both in clinical studies and as a tool for clinical evaluation. Because of this, its potential use in animal models has been neglected. We evaluated NFC in guinea pigs to investigate the possibility of applying this technique to study microcirculation in the nailfold of animal models and in the future, development of an animal model for Raynaud's phenomenon. The applications are not only to elucidate the pathophysiological mechanisms of vasculopathy but can also be used in the development of novel treatment options.
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