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  • 1
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    Migration of Plasmodium sporozoites through cells before infection (2001)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2001-01-06
    Description: Intracellular bacteria and parasites typically invade host cells through the formation of an internalization vacuole around the invading pathogen. Plasmodium sporozoites, the infective stage of the malaria parasite transmitted by mosquitoes, have an alternative mechanism to enter cells. We observed breaching of the plasma membrane of the host cell followed by rapid repair. This mode of entry did not result in the formation of a vacuole around the sporozoite, and was followed by exit of the parasite from the host cell. Sporozoites traversed the cytosol of several cells before invading a hepatocyte by formation of a parasitophorous vacuole, in which they developed into the next infective stage. Sporozoite migration through several cells in the mammalian host appears to be essential for the completion of the life cycle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mota, M M -- Pradel, G -- Vanderberg, J P -- Hafalla, J C -- Frevert, U -- Nussenzweig, R S -- Nussenzweig, V -- Rodriguez, A -- New York, N.Y. -- Science. 2001 Jan 5;291(5501):141-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, New York University School of Medicine, 341 East 25 Street, New York, NY 10010, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11141568" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Membrane/parasitology/physiology/ultrastructure ; Cell Movement ; Cytosol/metabolism/parasitology ; Dextrans/metabolism ; Endocytosis ; Flow Cytometry ; Fluorescein-5-isothiocyanate/*analogs & derivatives/metabolism ; Hepatocytes/*parasitology/ultrastructure ; Malaria/parasitology ; Mice ; Mice, Inbred BALB C ; Plasmodium/physiology ; Plasmodium yoelii/growth & development/*physiology ; Propidium/metabolism ; Toxoplasma/physiology ; Tumor Cells, Cultured ; Vacuoles/parasitology/ultrastructure
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Malaria vaccine trials (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-09-09
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nussenzweig, R S -- Nussenzweig, V -- New York, N.Y. -- Science. 1988 Sep 9;241(4871):1278.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3413491" target="_blank"〉PubMed〈/a〉
    Keywords: Humans ; Malaria/*prevention & control ; Vaccines, Synthetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Progress toward malaria preerythrocytic vaccines (1991)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1991-04-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoffman, S L -- Nussenzweig, V -- Sadoff, J C -- Nussenzweig, R S -- New York, N.Y. -- Science. 1991 Apr 26;252(5005):520-1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Malaria Program, Naval Medical Research Institute, Bethesda, MD 20889.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2020852" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibody Formation ; Antigens, Protozoan/genetics/*immunology ; Humans ; Malaria/epidemiology/immunology/*prevention & control ; Molecular Sequence Data ; Plasmodium falciparum/physiology ; Protozoan Proteins/immunology ; *Vaccines, Synthetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Malaria vaccines: multiple targets (1994)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1994-09-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nussenzweig, R S -- Long, C A -- AI21089/AI/NIAID NIH HHS/ -- AI35703-01/AI/NIAID NIH HHS/ -- AI37542-01/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1994 Sep 2;265(5177):1381-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical and Molecular Parasitology, New York University Medical Center, NY 10010.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8073276" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anopheles/parasitology ; Antigens, Protozoan/immunology ; Humans ; Insect Vectors/parasitology ; Malaria/*prevention & control/transmission ; *Malaria Vaccines/immunology ; Malaria, Falciparum/prevention & control/transmission ; Plasmodium/growth & development/immunology ; Plasmodium falciparum/growth & development/immunology ; T-Lymphocytes, Cytotoxic/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    Plasmodium knowlesi sporozoite antigen: expression by infectious recombinant vaccinia virus (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-04-27
    Description: The gene coding for the circumsporozoite antigen of the malaria parasite Plasmodium knowlesi was inserted into the vaccinia virus genome under the control of a defined vaccinia virus promoter. Cells infected with the recombinant virus synthesized polypeptides of 53,000 to 56,000 daltons that reacted with monoclonal antibody against the repeating epitope of the malaria protein. Furthermore, rabbits vaccinated with the recombinant virus produced antibodies that bound specifically to sporozoites. These data provide evidence for expression of a cloned malaria gene in mammalian cells and illustrate the potential of vaccinia virus recombinants as live malaria vaccines.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Smith, G L -- Godson, G N -- Nussenzweig, V -- Nussenzweig, R S -- Barnwell, J -- Moss, B -- New York, N.Y. -- Science. 1984 Apr 27;224(4647):397-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6200932" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antibody Formation ; Antigens, Surface/analysis/*genetics/immunology ; *Cloning, Molecular ; *DNA, Recombinant ; Epitopes/immunology ; Genes ; Genes, Viral ; Genetic Vectors ; Operon ; Plasmodium/*genetics/immunology ; Rabbits ; Vaccination ; Vaccinia virus/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    DNA cloning of Plasmodium falciparum circumsporozoite gene: amino acid sequence of repetitive epitope (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-08-10
    Description: A clone of complementary DNA encoding the circumsporozoite (CS) protein of the human malaria parasite Plasmodium falciparum has been isolated by screening an Escherichia coli complementary DNA library with a monoclonal antibody to the CS protein. The DNA sequence of the complementary DNA insert encodes a four-amino acid sequence: proline-asparagine-alanine-asparagine, tandemly repeated 23 times. The CS beta-lactamase fusion protein specifically binds monoclonal antibodies to the CS protein and inhibits the binding of these antibodies to native Plasmodium falciparum CS protein. These findings provide a basis for the development of a vaccine against Plasmodium falciparum malaria.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Enea, V -- Ellis, J -- Zavala, F -- Arnot, D E -- Asavanich, A -- Masuda, A -- Quakyi, I -- Nussenzweig, R S -- New York, N.Y. -- Science. 1984 Aug 10;225(4662):628-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6204384" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Antibodies, Monoclonal/immunology ; Antigens, Surface/*genetics/immunology ; *Cloning, Molecular ; DNA/genetics ; Epitopes/*genetics ; *Genes ; Malaria/immunology ; Plasmodium falciparum/*genetics ; *Protozoan Proteins ; *Repetitive Sequences, Nucleic Acid
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Hybridoma produces protective antibodies directed against the sporozoite stage of malaria parasite (1980)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1980-01-04
    Description: Hybrid cells secreting antibodies against sporozoites of Plasmodium berghei were obtained by fusion of plasmacytoma cells with immune murine spleen cells. The monoclonal antibodies bound to a protein with an apparent molecular weight of 44,000 (Pb44), which envelopes the surface membrane of sporozoites. Incubation of sporozoites in vitro with antibodies to Pb44 abolished their infectivity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoshida, N -- Nussenzweig, R S -- Potocnjak, P -- Nussenzweig, V -- Aikawa, M -- New York, N.Y. -- Science. 1980 Jan 4;207(4426):71-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6985745" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibodies ; Antigens, Surface ; Clone Cells/immunology ; Hybrid Cells/immunology ; Malaria/*immunology ; Membrane Proteins/immunology ; Mice ; Molecular Weight ; Myeloma Proteins/immunology ; Neoplasms, Experimental/immunology ; Plasmacytoma/immunology ; Plasmodium berghei/*immunology ; Spleen/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    Antibodies to sporozoites: their frequent occurrence in individuals living in an area of hyperendemic malaria (1979)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1979-11-02
    Description: Serum samples from 158 West Africans were tested for antibodies against sporozoites, the vector stage of the malaria parasite. Antibodies specific for Plasmodium falciparum sporozoites were detected by means of the circumsporozoite precipitation assay and indirect immunofluorescence. More than 90 percent of the serum samples from adults gave positive immunofluorescent reactions against falciparum sporozoites, whereas most of the samples from children gave low or negative reactions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nardin, E H -- Nussenzweig, R S -- McGregor, I A -- Bryan, J H -- New York, N.Y. -- Science. 1979 Nov 2;206(4418):597-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/386511" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Age Factors ; Antibodies/*analysis ; Child ; Child, Preschool ; Disease Reservoirs/immunology ; Fluorescent Antibody Technique ; Humans ; Malaria/*immunology ; Middle Aged ; Plasmodium falciparum/*immunology ; Vaccines
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
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    Research toward malaria vaccines (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-12-12
    Description: Malaria exacts a toll of disease to people in the Tropics that seems incomprehensible to those only familiar with medicine and human health in the developed world. The methods of molecular biology, immunology, and cell biology are now being used to develop an antimalarial vaccine. The Plasmodium parasites that cause malaria have many stages in their life cycle. Each stage is antigenically distinct and potentially could be interrupted by different vaccines. However, achieving complete protection by vaccination may require a better understanding of the complexities of B- and T-cell priming in natural infections and the development of an appropriate adjuvant for use in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Miller, L H -- Howard, R J -- Carter, R -- Good, M F -- Nussenzweig, V -- Nussenzweig, R S -- P01-AI17429/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1986 Dec 12;234(4782):1349-56.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2431481" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, Protozoan/analysis ; Arthropod Vectors ; Epitopes/analysis ; Erythrocytes/parasitology ; Humans ; *Immunotherapy ; Malaria/immunology/*prevention & control/transmission ; Molecular Weight ; Mosquito Control ; Plasmodium/immunology ; Receptors, Antigen, T-Cell/immunology ; T-Lymphocytes, Helper-Inducer/immunology ; *Vaccines
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Circumsporozoite protein of Plasmodium vivax: gene cloning and characterization of the immunodominant epitope (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-11-15
    Description: The gene encoding the circumsporozoite (CS) protein of the human malaria parasite Plasmodium vivax has been cloned. The deduced sequence of the protein consists of 373 amino acids with a central region of 19 tandem repeats of the nonapeptide Asp-Arg-Ala-Asp/Ala-Gly-Gln-Pro-Ala-Gly. A synthetic 18-amino acid peptide containing two tandem repeats binds to a monoclonal antibody directed to the CS protein of Plasmodium vivax and inhibits the interaction of this antibody with the native protein in sporozoite extracts. The portions of the CS gene that do not contain repeats are closely related to the corresponding regions of the CS genes of two simian malarias, Plasmodium cynomolgi and Plasmodium knowlesi. In contrast, the homology between the CS genes of Plasmodium vivax and Plasmodium falciparum, another malaria parasite of humans, is very limited.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Arnot, D E -- Barnwell, J W -- Tam, J P -- Nussenzweig, V -- Nussenzweig, R S -- Enea, V -- New York, N.Y. -- Science. 1985 Nov 15;230(4727):815-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2414847" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibodies, Monoclonal/immunology ; Antigens, Surface/*genetics/immunology ; Cloning, Molecular ; Epitopes/*genetics/immunology ; Haplorhini/parasitology ; Humans ; Malaria/parasitology ; Nucleic Acid Hybridization ; Plasmodium/immunology ; Plasmodium vivax/*genetics/immunology ; *Protozoan Proteins ; Repetitive Sequences, Nucleic Acid
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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