scholarly journals Angiogenesis and proliferation of endothelial cells in hypertrophic and nodular port-wine stain

Author(s):  
Wenxin Yu ◽  
Jiafang Zhu ◽  
Lizhen Wang ◽  
Gang Ma ◽  
Xiaoxi Lin
2019 ◽  
Vol 20 (9) ◽  
pp. 2243 ◽  
Author(s):  
Vi Nguyen ◽  
Marcelo Hochman ◽  
Martin C. Mihm ◽  
J. Stuart Nelson ◽  
Wenbin Tan

Port wine stain (PWS) is a congenital vascular malformation involving human skin. Approximately 15–20% of children a facial PWS involving the ophthalmic (V1) trigeminal dermatome are at risk for Sturge Weber syndrome (SWS), a neurocutaneous disorder with vascular malformations in the cerebral cortex on the same side of the facial PWS lesions. Recently, evidence has surfaced that advanced our understanding of the pathogenesis of PWS/SWS, including discoveries of somatic genetic mutations (GNAQ, PI3K), MAPK and PI3K aberrant activations, and molecular phenotypes of PWS endothelial cells. In this review, we summarize current knowledge on the etiology and pathology of PWS/SWS based on evidence that the activation of MAPK and/or PI3K contributes to the malformations, as well as potential futuristic treatment approaches targeting these aberrantly dysregulated signaling pathways. Current data support that: (1) PWS is a multifactorial malformation involving the entire physiological structure of human skin; (2) PWS should be pathoanatomically re-defined as “a malformation resulting from differentiation-impaired endothelial cells with a progressive dilatation of immature venule-like vasculatures”; (3) dysregulation of vascular MAPK and/or PI3K signaling during human embryonic development plays a part in the pathogenesis and progression of PWS/SWS; and (4) sporadic low frequency somatic mutations, such as GNAQ, PI3K, work as team players but not as a lone wolf, contributing to the development of vascular phenotypes. We also address many crucial questions yet to be answered in the future research investigations.


2019 ◽  
Vol 31 (Suppl) ◽  
pp. S5
Author(s):  
Geun-Hwi Park ◽  
Woo-Il Kim ◽  
Min-Young Yang ◽  
Won-Ku Lee ◽  
Tae-Wook Kim ◽  
...  

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Butchibabu Kalakonda ◽  
Koppolu Pradeep ◽  
Ashank Mishra ◽  
Krishnanjaneya Reddy ◽  
Tupili Muralikrishna ◽  
...  

Sturge-Weber syndrome (SWS) is a sporadic disorder and is frequent among the neurocutaneous syndromes specifically with vascular predominance. This syndrome consists of constellation of clinical features like facial nevus, seizures, hemiparesis, intracranial calcifications, and mental retardation. It is characterized by focal port-wine stain, ocular abnormalities (glaucoma), and choroidal hemangioma and leptomeningeal angioma most often involving occipital and parietal lobes. The present paper reports three cases of SWS with oral manifestations and periodontal management, which included thorough scaling and root planing followed by gingivectomy with scalpel and laser in cases 1 and 3 consecutively to treat the gingival enlargement. However, the treatment in case 2 was deferred as the patient was not a candidate for periodontal surgery.


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