Encephalomyocarditis virus(EMCV)is a zoonotic pathogen that causes encephalitis and myocarditis as its primary clinical manifestations.To explore effective preventive measures,this study utilized a Bac-to-Bac expression system to insert the EMCV P12A and 3C genes into the pFastBacDual shuttle vector,resulting in the generation of the recombinant baculovirus Ac-P12A-3C.This facilitated the large-scale expression and purification of EMCV virus-like particles(VLPs),which were correctly assembled into particles of approximately 30 nm in diameter,as ob-served by electron microscopy.Immunization and challenge experiments in mice demonstrated that these VLPs could effectively protect against EMCV infection,achieving a protection rate of 100％.Histopathological sections indicated that,compared to the PBS control group,the VLP immuniza-tion group exhibited significantly reduced tissue damage,along with a marked decrease in viral load within the tissues.In piglets,immunization with the VLPs elicited a robust humoral response,with neutralizing antibody titers reaching 1∶320 to 1∶640 after a second immunization,and no signifi-cant adverse reactions were observed throughout the immunization process.This study preliminarily explores the immunogenicity and safety of the VLP vaccine,laying the foundation for the development of a subunit vaccine based on EMCV VLPs and offering a new strategy for the prevention and control of encephalomyocarditis.

Encephalomyocarditis virus(EMCV)is a zoonotic pathogen that causes encephalitis and myocarditis as its primary clinical manifestations.To explore effective preventive measures,this study utilized a Bac-to-Bac expression system to insert the EMCV P12A and 3C genes into the pFastBacDual shuttle vector,resulting in the generation of the recombinant baculovirus Ac-P12A-3C.This facilitated the large-scale expression and purification of EMCV virus-like particles(VLPs),which were correctly assembled into particles of approximately 30 nm in diameter,as ob-served by electron microscopy.Immunization and challenge experiments in mice demonstrated that these VLPs could effectively protect against EMCV infection,achieving a protection rate of 100％.Histopathological sections indicated that,compared to the PBS control group,the VLP immuniza-tion group exhibited significantly reduced tissue damage,along with a marked decrease in viral load within the tissues.In piglets,immunization with the VLPs elicited a robust humoral response,with neutralizing antibody titers reaching 1∶320 to 1∶640 after a second immunization,and no signifi-cant adverse reactions were observed throughout the immunization process.This study preliminarily explores the immunogenicity and safety of the VLP vaccine,laying the foundation for the development of a subunit vaccine based on EMCV VLPs and offering a new strategy for the prevention and control of encephalomyocarditis.

Objective To observe the expression of ciz1 in human colorectal cancer tissues and analyse the relationship between their expression and clinicopathologic features.Methods We detected the expression of Ciz1 and Ciz1 mRNA by immunohistochemistry and Western blotting.The relationship between the expression of ciz1 and clinicopathologic features was analied.Results According to immunohistochemical results,Ciz1 showed significant high expression in the primary lesion of colorectal cancer tissue,compared to normal adjacent tissues(66.7%vs.35.0%,P=0.001).Through Western blot analysis,it was found that the relative expression level in colorectal cancer tissue was 0.32±0.03,while in normal colorectal mucosal tissue it was 0.11±0.01.In addition,the relative expression level of Ciz1 in colorectal cancer tissue was significantly higher than that in normal intestinal mucosal tissue(P<0.05).The study found that the overexpression of Ciz1 in colorectal cancer tissue is significantly correlated with the T stage(P=0.018),lymph node metastasis(P=0.022),and AJCC stage(P=0.017)of the cancer.The age,gender,tumor location,degree of differentiation,and the presence of distant metastasis of patients were not correlated with this(P>0.05).The expression level of Ciz1 in colorectal cancer tissue is significantly increased,which is closely related to the T stage(P=0.018),lymph node metastasis(P=0.022),and American Joint Committee on Cancer stage(P=0.017)of colorectal cancer.Conclusion This association suggests that Ciz1 may play an important role in tumor staging,participating in the development and spread of tumors.Therefore,it can be foreseen that Ciz1 is expected to become a new biomarker for evaluating the prognosis of colorectal cancer patients.

Traditional Chinese medicines have demonstrated clinical efficacy in preventing and treating chemotherapy-induced peripheral neuropathic pain(CIPNP).However,their specific clinical application and mechanism of action require further in-depth study and exploration.There is thus a need to develop more accurate and clinically relevant animal models that reflect the occurrence and development of human diseases as a tool for research.This review provides an in-depth analysis and discussion of the recent establishment and detection criteria of existing rat and mouse animal models of paclitaxel-induced peripheral neuropathic pain.We also evaluate and explain the application of these models for the prevention and treatment of CIPNP in traditional Chinese medicine,thus providing a theoretical basis and reference for future experimental and mechanistic research on the subject.This research will benefit clinical practice and promotion,offering valuable insights into preventing and treating CIPNP using traditional Chinese medicines.