Influence of red bone marrow allotransplantation on neuron-specific (NSE) and histamine-containing lymph node cells

Objective: to analyze the functional state of mast cells (MC) after bone marrow allotransplantation at the early stages of the experiment. Materials and Methods. The experiments were carried out on 40 outbred male mice, which were divided into 3 groups: Group 1 with intact animals (n=10); Group 2 with control animals injected with 0.85% sodium chloride solution (n=10); Group 3 with experimental animals (n=30) injected into their tail vein with a cell suspension from another mouse under ether anesthesia. The state of mast cells was evaluated by the method of staining with polychrome toluidine blue sensu P.G. Unna. Results. Forty minutes after the introduction of foreign bone marrow in the medulla, metachromatic MC were found near the vessels, and their proportion (60%) prevailed over orthochromatic MC (40%). MC were most often located in groups, especially near the vessels, in contact with each other. The morphometric parameters of MC were changing (diameter, 8.00-17.00 μm 6.00-12.00 μm vs in intact MC). Two hours after the experiment, in accordance with the degree of heparin sulfation, metachromatic mast cells were predominantly detected (92%), and extensively degranulated MC predominated (61%), p<0.05. The size of MC was changing (diameter: 3.00-9.00 μm; distance between cells: 29.00-53.00 μm). One-way analysis of variance established that there was a significant effect of the experiment duration on the change in the proportion of MC with metachromatic staining. Conclusion. An introduction of bone marrow transplant significantly changes the functional profile of mast cells.

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Impact of bone marrow allotransplantation on functional state of mast cells in lymph nodes

Romanov

Vorobyova

Romanova

2021

Saratov Med J

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Influence of red bone marrow allotransplantation on neuron-specific (NSE) and histamine-containing lymph node cells

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Impact of bone marrow allotransplantation on functional state of mast cells in lymph nodes

Impact of bone marrow allotransplantation on functional state of mast cells in lymph nodes

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