Vestnik Transplantologii i Iskusstvennyh Organov (Oct 2019)

Profiling microRNA in the potential lung recipients

  • O. P. Shevchenko,
  • O. M. Tsirulnikova,
  • O. E. Gichkun,
  • I. V. Pashkov,
  • S. O. Sharapchenko,
  • D. A. Velikiy

DOI
https://doi.org/10.15825/1995-1191-2019-3-33-38
Journal volume & issue
Vol. 21, no. 3
pp. 33 – 38

Abstract

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MicroRNAs are small RNA molecules stable in blood serum (plasma) samples. Their level of expression is associated with the severity and nature of physiological and pathological processes in the body.Aim: to evaluate the expression levels of five microRNAs (miR-27, miR-101, miR-142, miR-339 and miR-424) in potential lung recipients with end-stage chronic lung diseases of various etiologies.Materials and methods. The study included 16 patients with end-stage chronic lung diseases (potential lung recipients) aged 4 to 74 years (average 36 ± 18). Among them were two children (12.5%) – girls aged 4 and 14 years, and 14 adults aged from 21 to 74 (40 ± 16) years – 6 men (42.9%) and 8 women. The control group consisted of 12 healthy individuals. The main diseases that caused severe respiratory failure were: cystic fibrosis (n = 5), primary pulmonary hypertension (PPH; n = 4), pulmonary fibrosis of various etiologies (idiopathic pulmonary fibrosis – 1; pulmonary fibrosis associated with exogenous allergic alveolitis – 1; radiation-induced pulmonary fibrosis – 1), lymphangioleiomyomatosis (n = 2), histiocytosis (n = 1) and pulmonary emphysema (n = 1). MicroRNA expression was detected through real-time PCR. The level of microRNA expression in plasma was estimated in accordance with instructions for reagent kits (Qiagen, USA).Results. The levels of miR-27, miR-101 and miR-339 in potential lung recipients were significantly higher than in healthy individuals. The levels differed depending on the etiology of diseases: the levels of miR-27, miR-101, miR-142 and miR-339 were higher in patients with cystic fibrosis than in healthy individuals; in patients with other lung diseases, only miR-101 levels where higher than in healthy individuals. The miR-424 level in healthy individuals did not differ from that in potential lung recipients or in subgroups.Conclusion. Results obtained show the features of a number of microRNA levels (miR-27, miR-101, miR-142, and miR-339) under certain lung diseases and suggest a possibility of a diagnostic value in patients with chronic respiratory failure during pre-transplant examination.

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