Kalvala Anil Kumar, Bagde Arvind, Arthur Peggy, Kulkarni Tanmay, Bhattacharya Santanu, Surapaneni Sunil, Patel Nil Kumar, Nimma Ramesh, Gebeyehu Aragaw, Kommineni Nagavendra, Meckes David G, Sun Li, Banjara Bipika, Mosley-Kellum Keb, Dinh Thanh Cong, Singh Mandip
Department of Pharmaceutics, College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32301, USA.
Department of Biochemistry and Molecular Biology, Mayo College of Medicine and Science, Jacksonville, FL 32224, USA.
Pharmaceutics. 2023 Feb 7;15(2):554. doi: 10.3390/pharmaceutics15020554.
In cancer patients, chronic paclitaxel (PTX) treatment causes excruciating pain, limiting its use in cancer chemotherapy. The neuroprotective potential of synthetic cannabidiol (CBD) and CBD formulated in extracellular vesicles (CBD-EVs) isolated from human umbilical cord derived mesenchymal stem cells was investigated in C57BL/6J mice with PTX-induced neuropathic pain (PIPN). The particle size of EVs and CBD-EVs, surface roughness, nanomechanical properties, stability, and release studies were all investigated. To develop neuropathy in mice, PTX (8 mg/kg, i.p.) was administered every other day (four doses). In terms of decreasing mechanical and thermal hypersensitivity, CBD-EVs treatment was superior to EVs treatment or CBD treatment alone ( < 0.001). CBD and CBD-EVs significantly reduced mitochondrial dysfunction in dorsal root ganglions and spinal homogenates of PTX-treated animals by modulating the AMPK pathway ( < 0.001). Studies inhibiting the AMPK and 5HT1A receptors found that CBD did not influence the neurobehavioral or mitochondrial function of PIPN. Based on these results, we hypothesize that CBD and CBD-EVs mitigated PIPN by modulating AMPK and mitochondrial function.
在癌症患者中,长期使用紫杉醇(PTX)会导致极度疼痛,限制了其在癌症化疗中的应用。在患有PTX诱导的神经性疼痛(PIPN)的C57BL/6J小鼠中,研究了合成大麻二酚(CBD)以及从人脐带间充质干细胞分离的细胞外囊泡中配制的CBD(CBD-EVs)的神经保护潜力。对细胞外囊泡和CBD-EVs的粒径、表面粗糙度、纳米力学性能、稳定性和释放研究均进行了调查。为了使小鼠发生神经病变,每隔一天给予PTX(8mg/kg,腹腔注射)(共四剂)。在减轻机械性和热超敏反应方面,CBD-EVs治疗优于单独的细胞外囊泡治疗或CBD治疗(P<0.001)。CBD和CBD-EVs通过调节AMPK途径,显著降低了PTX处理动物的背根神经节和脊髓匀浆中的线粒体功能障碍(P<0.001)。抑制AMPK和5HT1A受体的研究发现,CBD不影响PIPN的神经行为或线粒体功能。基于这些结果,我们推测CBD和CBD-EVs通过调节AMPK和线粒体功能减轻了PIPN。