Expression of Genes in Primo Vasculature Floating in Lymphatic Endothelium Under Lipopolysaccharide and Acupuncture Electric Stimulation

Publication date: Available online 4 April 2018Source: Journal of Acupuncture and Meridian StudiesAuthor(s): Jun-Young Shin, Jong-Ok Ji, Da-Woon Choi, Sang-Heon Choi, Jong-Gu Choi, Min-Suk Rho, Ji Yoon Lee, Sang-Suk LeeAbstractIt is known that the primo vascular system (PVS) includes the primo nodes and vessels. However, the relevant genes in the PVS system for both pathologic and physiologic condition are poorly understood. Here, we first examined the gene expression in primo vessels (PVs) floating in lymphatic endothelium by isolation of PVS and lymphatic vessels (LVs) containing PVS. To investigate therapeutic effects, both PVs and LVs containing PVS were isolated after lipopolysaccharide injection and acupuncture electric stimulation at two acupoints Joksamni (ST36) and Hapgok (LI04) following lipopolysaccharide injection. We used reverse transcriptase–polymerase chain reaction to examine expression of lymphatic endothelial cell markers and inflammatory related genes. We found that lymphatic endothelial cell markers such as fms-related tyrosine kinase 4 (Flt4), lymphatic vessel endothelial receptor (Lyve-1), prospero homeobox protein 1 (Prox-1), and podoplanin (Pdpn) were highly expressed in PV compared to that of lymphatic endothelium, suggesting pivotal roles of PV in LV under inflammation. Furthermore, lymphatic-related genes including metal-response element-binding transcription factor 2 (Mtf2), hypoxia inducible factor (Hif1a), angiotensin II type 1 receptor ...

Source: Journal of Acupuncture and Meridian Studies - July 10, 2018 Category: Complementary Medicine Source Type: research