In this study, we intended to describe a human case of lumbosacral canal sparganosis in People’s Republic of China (China). A 56-year-old man was admitted to Xiangya Hospital Central South University in Changsha, Hunan province, China after having an experience of perianal pain for a week. An enhancing mass, a tumor clinically suggested, was showed at the S1-S2 level of the lumbosacral spine by the examination of magnetic resonance imaging (MRI) with gadolinium contrast. The patient was received the laminectomy from S1 to S2, and an ivory-white living worm was detected in inferior margin of L5. In ELISA-test with cerebrospinal fluid (CSF) and serum samples, anti-sparganum antibodies were detected. He had a ingesting history of undercooked frog meat in his youth. By the present study, a human case of spinal sparganosis invaded in lumbosacral canal at the S1-S2 level was diagnosed in China. Although the surgical removal of larvae is known to be the best way of treatment for sparganosis, we administered the high-dosage of praziquantel, albendazole and dexamethasone to prevent the occurrence of another remain worms in this study.
The serum IgG antibody level as a biomarker for clinical outcome in patients with cerebral sparganosis after treatment Haijie Xiang, Jie Wang, Dandan Tan, Ying Xiong, Pengcheng Huang, Yu Shen, Yun Xu, Zhihong Gong, Fei Hu, Chunhua Xu, Jie Wu, Wei Liu, Junpu Liu, Hui Wan, Daojun Hong, Huiqun Xie Frontiers in Immunology.2023;[Epub] CrossRef
Multiple sparganosis spinal infections mainly in the thoracic region: A case report Gan-Jun Wen, Jian Chen, Shi-Fei Zhang, Zhi-Sen Zhou, Gen-Long Jiao World Journal of Clinical Cases.2023; 11(36): 8507. CrossRef
Cystic echinococcosis (CE) treatment urgently requires a novel drug. The p38 mitogen-activated protein kinases (MAPKs) are a family of Ser/Thr protein kinases, but still have to be characterized in Echinococcus granulosus. We identified a 1,107 bp cDNA encoding a 368 amino acid MAPK protein (Egp38) in E. granulosus. Egp38 exhibits 2 distinguishing features of p38-like kinases: a highly conserved T-X-Y motif and an activation loop segment. Structural homology modeling indicated a conserved structure among Egp38, EmMPK2, and H. sapiens p38α, implying a common binding mechanism for the ligand domain and downstream signal transduction processing similar to that described for p38α. Egp38 and its phosphorylated form are expressed in the E. granulosus larval stages vesicle and protoscolices during intermediate host infection of an intermediate host. Treatment of in vitro cultivated protoscolices with the p38-MAPK inhibitor ML3403 effectively suppressed Egp38 activity and led to significant protoscolices death within 5 days. Treatment of in vitro-cultivated protoscolices with TGF-β1 effectively induced Egp38 phosphorylation. In summary, the MAPK, Egp38, was identified in E. granulosus, as an anti-CE drug target and participates in the interplay between the host and E. granulosus via human TGF-β1.
In vitro Scolicidal Efficacy of 5-Fluorouracil and Radiation Against Protoscoleces of Echinococcus granulosus Sensu Lato Pengfei Lu, Jun Li, Rui Mao, Hongzhi Qi, Liping Yang, Qin Zhou, Mengxiao Tian, Wenbao Zhang, Yongxing Bao Acta Parasitologica.2022; 67(2): 820. CrossRef
Transcriptome analysis uncovers the key pathways and candidate genes related to the treatment of Echinococcus granulosus protoscoleces with the repurposed drug pyronaridine Yingfang Yu, Jun Li, Weisi Wang, Tian Wang, Wenjing Qi, Xueting Zheng, Lei Duan, Jiaxu Chen, Shizhu Li, Xiumin Han, Wenbao Zhang, Liping Duan BMC Genomics.2021;[Epub] CrossRef
Knock Down the Egp38 and Combine with Radiation to Increase Its Inhibitory Effect on Echinococcus granulosus Pengfei Lu, Mengxiao Tian, Na Yi, Rui Mao, Hongzhi Qi, Liping Yang, Qin Zhou, Jun Li, Wenbao Zhang, Yongxing Bao SSRN Electronic Journal .2021;[Epub] CrossRef
Identification of Functional MKK3/6 and MEK1/2 Homologs from Echinococcus granulosus and Investigation of Protoscolecidal Activity of Mitogen-Activated Protein Kinase Signaling Pathway Inhibitors
In Vitro
and
Chuanshan Zhang, Jing Li, Tuerganaili Aji, Liang Li, Xiaojuan Bi, Ning Yang, Zhide Li, Hui Wang, Rui Mao, Guodong Lü, Yingmei Shao, Dominique A. Vuitton, Hao Wen, Renyong Lin Antimicrobial Agents and Chemotherapy.2019;[Epub] CrossRef
Echinococcosis: Advances in the 21st Century Hao Wen, Lucine Vuitton, Tuerhongjiang Tuxun, Jun Li, Dominique A. Vuitton, Wenbao Zhang, Donald P. McManus Clinical Microbiology Reviews.2019;[Epub] CrossRef
Toxoplasmosis is a serious disease caused by Toxoplasma gondii, one of the most widespread parasites in the world. Lipid metabolism is important in the intracellular stage of T. gondii. Stearoyl-CoA desaturase (SCD), a key enzyme for the synthesis of unsaturated fatty acid is predicted to exist in T. gondii. Sterculic acid has been shown to specifically inhibit SCD activity. Here, we examined whether sterculic acid and its methyl ester analogues exhibit anti-T. gondii effects in vitro. T. gondii-infected Vero cells were disintegrated at 36 hr because of the propagation and egress of intracellular tachyzoites. All test compounds inhibited tachyzoite propagation and egress, reducing the number of ruptured Vero cells by the parasites. Sterculic acid and the methyl esters also inhibited replication of intracellular tachyzoites in HFF cells. Among the test compounds, sterculic acid showed the most potent activity against T. gondii, with an EC50 value of 36.2 μM, compared with EC50 values of 248-428 μM for the methyl esters. Our study demonstrated that sterculic acid and its analogues are effective in inhibition of T. gondii growth in vitro, suggesting that these compounds or analogues targeting SCD could be effective agents for the treatment of toxoplasmosis.
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