scholarly journals Platelets Boost Recruitment of CD133+ Bone Marrow Stem Cells to Endothelium and the Rodent Liver—The Role of P-Selectin/PSGL-1 Interactions

2020 ◽  
Vol 21 (17) ◽  
pp. 6431
Author(s):  
Nadja Lehwald ◽  
Constanze Duhme ◽  
Iryna Pinchuk ◽  
Julian Kirchner ◽  
Kristina Wieferich ◽  
...  

We previously demonstrated that clinical administration of mobilized CD133+ bone marrow stem cells (BMSC) accelerates hepatic regeneration. Here, we investigated the potential of platelets to modulate CD133+BMSC homing to hepatic endothelial cells and sequestration to warm ischemic livers. Modulatory effects of platelets on the adhesion of CD133+BMSC to human and mouse liver-sinusoidal- and micro- endothelial cells (EC) respectively were evaluated in in vitro co-culture systems. CD133+BMSC adhesion to all types of EC were increased in the presence of platelets under shear stress. This platelet effect was mostly diminished by antagonization of P-selectin and its ligand P-Selectin-Glyco-Ligand-1 (PSGL-1). Inhibition of PECAM-1 as well as SDF-1 receptor CXCR4 had no such effect. In a model of the isolated reperfused rat liver subsequent to warm ischemia, the co-infusion of platelets augmented CD133+BMSC homing to the injured liver with heightened transmigration towards the extra sinusoidal space when compared to perfusion conditions without platelets. Extravascular co-localization of CD133+BMSC with hepatocytes was confirmed by confocal microscopy. We demonstrated an enhancing effect of platelets on CD133+BMSC homing to and transmigrating along hepatic EC putatively depending on PSGL-1 and P-selectin. Our insights suggest a new mechanism of platelets to augment stem cell dependent hepatic repair.

Nephrology ◽  
2015 ◽  
Vol 20 (9) ◽  
pp. 591-600 ◽  
Author(s):  
Juan He ◽  
Yan Wang ◽  
Xingyan Lu ◽  
Bei Zhu ◽  
Xiaohua Pei ◽  
...  

2008 ◽  
Vol 16 (14) ◽  
pp. 1543
Author(s):  
Ying Luo ◽  
Hui-Ling Xiang ◽  
Fei Tang ◽  
Tao Han

Author(s):  
О.В. Першина ◽  
А.В. Пахомова ◽  
Н.Н. Ермакова ◽  
О.Ю. Рыбалкина ◽  
В.А. Крупин ◽  
...  

Цель исследования состояла в выявлении информативных клеточных маркеров сосудистых осложнений, регенерации микрососудистой сети и воспаления в венозной крови здоровых волонтеров, больных с метаболическим синдромом, сахарным диабетом 1 и 2 типа. Методы. Обследованы больные с метаболическим синдромом (МС), диабетом 2 типа без осложнений, диабетом 1 типа средней степени тяжести и здоровые волонтеры. Диагноз пациентов подтвержден общеклиническими, биохимическими, коагулометрическими и иммуноферментными методами исследования, для оценки экспрессии антигенов использовался многопараметрический цитометрический анализ. Результаты. При анализе экспрессии маркеров показано изменение числа эндотелиальных клеток, мезенхимальных стволовых клеток (МСК) и гемопоэтических стволовых клеток (ГСК) в крови в зависимости от патологии. Эндотелиальные клетки миелоидного (CD45CD14CD34CD309CD144CD31) и немиелоидного (CD45CD14CD34CD309CD144CD31) происхождения, CD309-эндотелиальные клетки и МСК (CD44CD73CD90CD105) предлагаются в качестве маркеров повреждения эндотелия при диабетической симптоматике. При этом ГСК (CD45CD34) могут выступать ценным диагностическим и прогностическим маркером воспаления. Заключение. Для подтверждения сосудистых повреждений и прогноза развития осложнений при диабете 1 и 2 типа в венозной крови пациентов целесообразно оценивать эндотелиальные прогениторные клетки (ЭПК) не костномозговой локализации (CD31CD309CD144) и костномозговой локализации (CD34CD309), и ЭПК c высоким регенеративным потенциалом (CD45CD34CD31CD144). Циркулирующие ЭПК, формирующие колонии in vitro (CD45CD34CD31), рекомендуется использовать в качестве дифференциального маркера состояния регенерации эндотелия при диабете 2 типа. The aim of this study was to identify mesenchymal stem cells (MSC), hematopoietic stem cells (HSC), mature endothelial cells, and endothelial progenitor cells (EPC) in the blood of healthy volunteers, patients with metabolic syndrome, and type 1 and 2 diabetes mellitus as new, informative cellular markers of vascular complications, endothelial regeneration, and inflammation. Methods. The diagnosis was confirmed by general clinical, biochemical, coagulometeric and ELISA studies; multi-parameter cytometric assay was used for evaluation of antigen expression. Results. Changes in the count of MSC, HSC, mature endothelial cells, and endothelial progenitor cells in blood of patients with metabolic syndrome and type 1 and 2 diabetes depended on the type of pathology. We propose using endothelial cells of myeloid (CD45CD14CD34CD309CD144CD31) and non-myeloid origin (CD45CD14CD34CD309CD144CD31), CD309-endothelial cells, and MSCs with the CD44CD73CD90CD105 phenotype as nonspecific markers of endothelial damage in presence of diabetic symptoms. Furthermore, HSCs (CD45CD34) can be used as a valuable diagnostic and prognostic marker of inflammation. Conclusions. It is relevant to evaluate EPCs of non-bone marrow localization (CD31CD309CD144) and bone marrow localization (CD34CD309) and EPCs with a high regenerative potential (CD45CD34CD31CD144) in the blood of patients with type 1 and 2 diabetes to confirm the presence of vascular damage and predict development of complications. Circulating, in vitro colony-forming EPCs (CD45CD34CD31) are recommended as a differential marker for inhibition of endothelial regeneration in type 2 diabetes.


Author(s):  
Ramli Khairunnisa ◽  
Gasim Ifasha ◽  
Ahmad Amir ◽  
Htwe Ohnmar ◽  
Zhe Kang Law ◽  
...  

2020 ◽  
Vol 10 (24) ◽  
pp. 8971
Author(s):  
Sergej V. Belov ◽  
Yakov P. Lobachevsky ◽  
Yurij K. Danilejko ◽  
Aleksej B. Egorov ◽  
Alexander V. Simakin ◽  
...  

The potential use of low-temperature plasma (LTP) for therapeutic purposes has aroused the concern of many researchers. This paper examines the effect of LTP on the morphofunctional state of human bone marrow stem cells (BMSC). It has been established that LTP-induced oxidative stress has a dual effect on the state of stem cells. On the one hand, a cell culture exposed to LTP exhibits the progression of a destructive processes, which is manifested by the perturbation of the cell’s morphology, the initiation of lipid peroxidation and the accumulation of products of this process, like diene conjugates and malondialdehyde, as well as the induction of mitochondrial dysfunction, leading to cell death. On the other hand, the effect of LTP on BMSC located at a distance from the plasma is accompanied by the activation of proliferative processes, as evidenced by the tendency of the activity of mitochondrial biogenesis and fission/fusion processes to increase. The paper discusses the role of mitochondria and reactive oxygen species (ROS) in the cellular response to LTP.


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