Merozoite surface antigens can induce protective immune responses and may becandidate antigens for malaria vaccine.Four hybridoma cell lines secreting monoclonalantibodies against Plasmodium falciparum Fcc7801/HN were...Merozoite surface antigens can induce protective immune responses and may becandidate antigens for malaria vaccine.Four hybridoma cell lines secreting monoclonalantibodies against Plasmodium falciparum Fcc7801/HN were produced.Antibodies fromthree of the four lines showed significant growth-inhibiting effect on P.falciparum invitro.One monoclonal antibody,known as C6,conjugated the antigen located exclusivelyon the merozoite surface and distributed evenly over the entire surface,as wasdemonstrated by immunoelectron microscopy.C6 also precipitated a single protein of Mr71000.展开更多
In this study,the DNA probe pPF14 was nonradioactively labelled by sulfo-modifica-tion,and used in a dot blot hybridization assay for detection of P.falciparum.The resultsshowed that the sulfoprobe successfully detect...In this study,the DNA probe pPF14 was nonradioactively labelled by sulfo-modifica-tion,and used in a dot blot hybridization assay for detection of P.falciparum.The resultsshowed that the sulfoprobe successfully detected 25pg purified DNA and 0.001% parasitemia ofcultured P.falciparum,and did not react with human leukocyte DNA.In the study of 179clinical blood samples of malaria patients from Yunnan province,the DNA probe results corre-lated well with blood smear ones.Of 107 P.falciparum samples determined by microscope ex-amination,99 were positive by sulfoprobe (92.5%);Of 72 P.vivax samples,1 was crosslyreacted;no cross reactions were found with any of 48 normal blood samples.It is indicated thatsulfoprobe may be useful in specific diagnosis and epidemiological investigation of P.falciparuminfection.展开更多
基金The project was supported by the National Natural Science Foundation of China,No 3860869
文摘Merozoite surface antigens can induce protective immune responses and may becandidate antigens for malaria vaccine.Four hybridoma cell lines secreting monoclonalantibodies against Plasmodium falciparum Fcc7801/HN were produced.Antibodies fromthree of the four lines showed significant growth-inhibiting effect on P.falciparum invitro.One monoclonal antibody,known as C6,conjugated the antigen located exclusivelyon the merozoite surface and distributed evenly over the entire surface,as wasdemonstrated by immunoelectron microscopy.C6 also precipitated a single protein of Mr71000.
文摘In this study,the DNA probe pPF14 was nonradioactively labelled by sulfo-modifica-tion,and used in a dot blot hybridization assay for detection of P.falciparum.The resultsshowed that the sulfoprobe successfully detected 25pg purified DNA and 0.001% parasitemia ofcultured P.falciparum,and did not react with human leukocyte DNA.In the study of 179clinical blood samples of malaria patients from Yunnan province,the DNA probe results corre-lated well with blood smear ones.Of 107 P.falciparum samples determined by microscope ex-amination,99 were positive by sulfoprobe (92.5%);Of 72 P.vivax samples,1 was crosslyreacted;no cross reactions were found with any of 48 normal blood samples.It is indicated thatsulfoprobe may be useful in specific diagnosis and epidemiological investigation of P.falciparuminfection.
