2. Academic Validation
  3. Duloxetine-Induced Neural Cell Death and Promoted Neurite Outgrowth in N2a Cells

Duloxetine-Induced Neural Cell Death and Promoted Neurite Outgrowth in N2a Cells

  • Neurotox Res. 2020 Dec;38(4):859-870. doi: 10.1007/s12640-020-00216-x.
Wanli Gao 1 2,  Rui Chen 3,  Nan Xie 4,  Daolin Tang 5,  Borong Zhou 6 7,  Ding Wang 8 9
Affiliations

Affiliations

  • 1 Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Center for DAMP Biology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510510, People's Republic of China.
  • 2 Department of Neurology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510510, People's Republic of China.
  • 3 Department of Reproductive, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510510, People's Republic of China.
  • 4 Department of Oral Pathology, Guanghua School of Stomatology, Research Institute of Stomatology, Guangdong Province Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, 510055, Guangdong, People's Republic of China.
  • 5 Department of Surgery, UT Southwestern Medical Center, Dallas, TX, 75390, USA.
  • 6 Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Center for DAMP Biology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510510, People's Republic of China. zhoubr8@aliyun.com.
  • 7 Department of Neurology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510510, People's Republic of China. zhoubr8@aliyun.com.
  • 8 Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Center for DAMP Biology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510510, People's Republic of China. largestone_1984@163.com.
  • 9 Experimental Department of Institute of Gynecology and Obstetrics, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510510, People's Republic of China. largestone_1984@163.com.
PMID: 32415528 DOI: 10.1007/s12640-020-00216-x
Abstract

Duloxetine is a clinical drug that is primarily used for treatment of depression and pain, but it has side effects of addiction and tolerance. Cytochrome P450 (CYP) is its metabolic Enzyme, and the drug's biofunction results from its neuro-protective effect in animal and cell models. We aimed to investigate the duloxetine-induced neural cytotoxicity effect and its performance in an N2a cell neurite outgrowth model. Cell death was assessed as cell viability using a Cell Count Kit-8 and further evaluated using bright-field images, propidium iodide (PI) and annexin V staining, colony-formation analysis, TUNEL staining of the cells, and biochemical testing. N2a cells were committed to differentiation by serum withdrawal and RA induction, and the neurite outgrowth was evaluated as the number of differentiated cells, longest neurite length, and average neurite length. Cell cycle analysis, PI and annexin V staining, mRNA expression, and biochemical testing were used to evaluate the drug effects on differentiation. The induction of neural cell death by duloxetine was not affected by classic cell death inhibitors but was promoted by the CYP inducer rifampicin. N2a cell neurite outgrowth was promoted by duloxetine via reduction of the CYP2D6 and MDA levels and induction of Bdnf protein levels. Duloxetine induces neural cell death through effects on CYP and promotes N2a cell neurite outgrowth by regulating CYP, Bdnf protein, and the intracellular lipid peroxidation level.

Keywords

Cell death; Duloxetine; N2a cells; Neural cells; Neurite outgrowth.

Figures
Products