Long non-coding RNA MSTRG.81401 short hairpin RNA relieves diabetic neuropathic pain and behaviors of depression by inhibiting P2X4 receptor expression in type 2 diabetic rats

• Published in: Purinergic signalling 2023-03, Vol.19 (1), p.123-133
• Main Authors: Sun, Mengyun, Zhang, Mingming, Yin, Haoming, Tu, Hongcheng, Wen, Yuqing, Wei, Xingyu, shen, Wenhao, Huang, Ruoyu, Xiong, Wei, Li, Guodong, Gao, Yun
• Format: Article
• Language: English
• Subjects: Animals; Biomedical and Life Sciences; Biomedicine; Cancer Research; Depression; Depressive Disorder, Major; Diabetes; Diabetes mellitus; Diabetes Mellitus, Experimental - metabolism; Diabetes Mellitus, Type 2; Diabetic Neuropathies - metabolism; Diabetic neuropathy; Extracellular signal-regulated kinase; Hippocampus; Human Physiology; Latency; Mental depression; Mental disorders; Neuralgia - metabolism; Neurosciences; Non-coding RNA; Open-field behavior; Original; Original Article; Pharmacology/Toxicology; Phosphorylation; Purine receptors; Rats; Rats, Sprague-Dawley; Receptors, Purinergic P2X4; RNA, Long Noncoding; RNA, Small Interfering; Spinal cord; Spinal Cord - metabolism; Sucrose
• ISSN: 1573-9538; 1573-9546
• DOI: 10.1007/s11302-021-09828-0

Patients with diabetic neuropathic pain (DNP) experience immense physical and mental suffering, which is comorbid with other mental disorders, including major depressive disorder (MDD). P2X4 receptor, one of the purinergic receptors, is a significant mediator of DNP and MDD. The present study aimed to identify the roles and mechanisms of MSTRG.81401, a long non-coding RNA (lncRNA), in alleviating DNP and MDD-like behaviors in type 2 diabetic rats. After administration with MSTRG.81401 short hairpin RNA (shRNA), the model + MSTRG.81401 shRNA group demonstrated increased mechanical withdrawal threshold, thermal withdrawal latency, open-field test, and sucrose preference test; however, immobility time on the forced swimming test decreased. MSTRG.81401 shRNA administration significantly decreased the expression of the P2X4 receptor, tumor necrosis factor-α, and interleukin-1β in the hippocampus and spinal cord in the model + MSTRG.81401 shRNA group. Simultaneously, MSTRG.81401 shRNA administration downregulated phosphorylation of ERK1/2 in the hippocampus and spinal cord. Thus, lncRNA MSTRG.81401 shRNA can alleviate DNP and MDD-like behaviors in type 2 diabetic rats and may downregulate the expression of P2X4 receptors in the hippocampus and spinal cord of rats.