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Влияние препарата тимодепрессин на течение аутоиммунного процесса у самок мышей линии mrl/1

Влияние препарата тимодепрессин на течение аутоиммунного процесса у самок мышей линии mrl/1

Abstract

Цель. Оценить эффективность нового иммуноаюгивного пептида тимодепрессина (ТД), селективно ингибирующего Т-клеточный иммунитет при ревматических заболеваниях. Материал и методы. Изучали выживаемость животных и морфологические изменения в селезенке, почках и синовиальной оболочке у 100 самок мышей линии MRL/1. Использовали ТД в дозе 10 мкг/кг и Ю+ЮОмкг/кг по 20 и 40 инъекций на животное. Мышам группы сравнения вводили физиологический раствор в качестве плацебо. Результаты оценивали двойным слепым методом. Результаты. Выживаемость леченных мышей (10+100 мкг/кг) к 6-ти мес возрасту была в два раза выше, чем в контрольной группе. Морфометрические показатели иммуногенеза в селезенке леченных животных оказались сопоставимыми с параметрами одномесячных особей. Нарастала площадь белой и красной пульпы, увеличивалось число зрелых и незрелых плазмоцитов на 1 мм 2, а также количество мегакариоцитов в поле зрения. Результаты исследования селезенки свидетельствовали об иммуносупрессивном действии ТД, подавляющего лимфопролиферативный процесс и как следствие увеличивающего выживаемость животных носителей гена lpr/lpr. Однако препарат не влиял на течение аутоиммунного процесса, отраженного в ревматоидоподобных изменених в почках и синовиальной оболочке животных. Заключение. ТД оказывает дозозависимый эффект на выживаемость и морфологические показатели мышей линии MRL/1: выживаемость животных при дозе 10+100 мкг/кг выше, однако доза 10 мкг/кг оказывает более выраженное положительное действие на морфологические показатели иммунои гемопоэза. Целесообразны дальнейшие исследования для отработки дозы и схемы препарата.

Objective. To assess efficacy of new immunoactive peptide thymodepressine (TD) selectively inhibiting T-cell immunity in rheumatic diseases Methods. Spleen, kidneys and synovial membrane morphological changes and survival were assessed in 100 MRL/1 female mice. 20 and 40 per animal TD injections in doses 10 mcg/kg and 10+100 mcg/kg were made. Control group animals received placebo (saline solution). Results were assessed by double blind method. Results. Survival of treated mice (10+100 mcg/kg) at the 6 months age was two times higher than in control group. Morphometric indices of immunogenesis in spleen of treated animals were comparable with parameters of one month age mice. White and red pulp area, number of mature and immature plasmacytes per 1 mm 2, number of megacariocytes were increased. Results of the spleen examination shows immunosuppressive action of TD suppressing lymphoprolipherative process and increasing survival of animals having lpr/lpr gen. But TD does not influence course of autoimmune process providing rheumatoid like changes in kidneys and synovial membrane of mice. Conclusion. TD has dose-dependent effect on survival and morphological indices in MRL/1 mice. Survival of animals at dose 10+100 mcg/kg was higher but dose 10 mcg/kg more expressively effected morphological indices of immunoand hemopoiesis. Additional examinations are needed to determine optimal dose and scheme of treatment.

Keywords

ИММУНОГЕНЕЗ, БИОЛОГИЧЕСКИЕ MODEJUT, АУТОИММУННАЯ ПАТОЛОГИЯ, ТИМОДЕПРЕССИН

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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