iScience (Jul 2020)

MicroRNA-30e-5p has an Integrated Role in the Regulation of the Innate Immune Response during Virus Infection and Systemic Lupus Erythematosus

  • Richa Mishra,
  • Sanjana Bhattacharya,
  • Bhupendra Singh Rawat,
  • Ashish Kumar,
  • Akhilesh Kumar,
  • Kavita Niraj,
  • Ajit Chande,
  • Puneet Gandhi,
  • Dheeraj Khetan,
  • Amita Aggarwal,
  • Seiichi Sato,
  • Prafullakumar Tailor,
  • Akinori Takaoka,
  • Himanshu Kumar

Journal volume & issue
Vol. 23, no. 7
p. 101322

Abstract

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Summary: Precise regulation of innate immunity is crucial for development of appropriate host immunity against microbial infections and maintenance of immune homeostasis. MicroRNAs are small non-coding RNAs, post-transcriptional regulator of multiple genes, and act as a rheostat for protein expression. Here, we identified microRNA-30e-5p induced by hepatitis B virus and other viruses that act as a master regulator for innate immunity. Moreover, pegylated interferons treatment of patients with HBV for viral reduction also reduces miRNA. Additionally, we have also shown the immuno-pathological effects of miR-30e in patients with systemic lupus erythematosus (SLE) and mouse model. Mechanistically, miR-30e targets multiple negative regulators of innate immune signaling and enhances immune responses. Furthermore, sequestering of miR-30e in patients with SLE and mouse model significantly reduces type-I interferon and pro-inflammatory cytokines. Collectively, our study demonstrates the novel role of miR-30e in innate immunity and its prognostic and therapeutic potential in infectious and autoimmune diseases.

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