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About

Ismo Virtanen is a leading researcher in the pathophysiology of systemic sclerosis (SSc) and inflammatory myopathies, with a particular focus on the mechanisms of vascular damage and failed angiogenesis. His seminal work, including his most-cited paper (67 citations), demonstrated that in SSc skin, the expression of vascular endothelial growth factor (VEGF) and its receptors is paradoxically increased yet imbalanced, failing to promote effective angiogenesis and instead correlating with vascular damage. This key finding, further supported by his study on "Vascular damage and lack of angiogenesis in systemic sclerosis skin" (42 citations), challenged prevailing assumptions about VEGF’s role in fibrotic diseases. Virtanen also made significant contributions to understanding muscle degeneration, showing that in inflammatory myopathies, elevated levels of HIF-1, αvβ3 integrin, and Flt-1 are insufficient to counteract the loss of blood vessels (24 citations). His work on the dual effects of caspase-1, IL-1β, TNF-α, and nerve growth factor receptor in these conditions (25 citations) has deepened insight into the molecular interplay driving tissue injury. Virtanen’s research has been instrumental in revealing why protective angiogenic signals fail in autoimmune vascular disease, offering critical foundations for future therapeutic strategies aimed at restoring microvascular integrity.