Patents by Inventor Koussay Dellagi

Koussay Dellagi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8715697
    Abstract: The invention relates to the field of combating leishmaniases. Said invention results from the isolation, from wild isolates of Leishmania major, of a protein-coding gene known as LmPDI which has two regions that are identical to the sequence (Cys-Gly-His-Cys) of the potential active site of the protein disulphide isomerase (PDI). The LmPDI protein is predominantly expressed in the most virulent isolates of the parasite. Said protein forms a novel therapeutic target for developing anti-leishmaniasis medicaments and a novel element that can be used in the composition of immunogenic, and possibly vaccinating, preparations which are intended to protect a human or animal host against Leishmania.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: May 6, 2014
    Assignees: Institut Pasteur de Tunis, Institut Pasteur
    Inventors: Yosser Ben Achour, Mehdi Chenik, Hechmi Louzir, Koussay Dellagi
  • Patent number: 8551500
    Abstract: The invention concerns an immunogenic composition comprising: i) an antigenic polypeptide consisting of a fragment of the protein histone H2B of Leishmania, said fragment including the N-terminal region of said protein histone H2B, and ii) an adjuvant stimulating the immune response.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: October 8, 2013
    Assignees: Institut Pastuer, Institut Pasteur De Tunis
    Inventors: Mehdi Chenik, Hechmi Louzir, Koussay Dellagi
  • Patent number: 7888492
    Abstract: The present invention relates to new proteins of Leishmania major and to therapeutical and diagnostic applications thereof. More particularly, the present invention relates to excreted/secreted polypeptides and polynucleotides encoding same, compositions comprising the same, and methods of diagnosis, vaccination and treatment of Leishmaniasis.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: February 15, 2011
    Assignees: Institut Pasteur, Institut Pasteur De Tunis
    Inventors: Mehdi Chenik, Sami Lakhal, Hechmi Louzir, Koussay Dellagi
  • Publication number: 20100119532
    Abstract: The invention concerns an immunogenic composition comprising: i) an antigenic polypeptide consisting of a fragment of the protein histone H2B of Leishmania, said fragment including the N-terminal region of said protein histone H2B, and ii) an adjuvant stimulating the immune response.
    Type: Application
    Filed: May 8, 2008
    Publication date: May 13, 2010
    Inventors: Mehdi Chenik, Hechmi Louzir, Koussay Dellagi
  • Patent number: 7700121
    Abstract: The invention relates to the field of combating leishmaniases. Said invention results from the isolation, from wild isolates of Leishmania major, of a protein-coding gene known as LmPDI which has two regions that are identical to the sequence (Cys-Gly-His-Cys) of the potential active site of the protein disulphide isomerases (PDI). The LmPDI protein is predominantly expressed in the most virulent isolates of the parasite. Said protein forms a novel therapeutic target for developing anti-leishmaniasis medicaments and a novel element that can be used in the composition of immunogenic, and possibly vaccinating, preparations which are intended to protect a human or animal host against Leishmania.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: April 20, 2010
    Assignees: Institut Pasteur, Institut Pasteur de Tunis
    Inventors: Yosser Ben Achour, Mehdi Chenik, Hechmi Louzir, Koussay Dellagi
  • Publication number: 20090169554
    Abstract: The present invention relates to new proteins of Leishmania major and to therapeutical and diagnostic applications thereof. More particularly, the present invention relates to excreted/secreted polypeptides and polynucleotides encoding same, compositions comprising the same, and methods of diagnosis, vaccination and treatment of Leishmaniasis.
    Type: Application
    Filed: April 7, 2006
    Publication date: July 2, 2009
    Inventors: Mehdi Chenik, Sami Lakhal, Hechmi Louzir, Koussay Dellagi
  • Publication number: 20080199496
    Abstract: The invention relates to the field of combating leishmaniases. Said invention results from the isolation, from wild isolates of Leishmania major, of a protein-coding gene known as LmPDI which has two regions that are identical to the sequence (Cys-Gly-His-Cys) of the potential active site of the protein disulphide isomerase (PDI). The LmPDI protein is predominantly expressed in the most virulent isolates of the parasite. Said protein forms a novel therapeutic target for developing anti-leishmaniasis medicaments and a novel element that can be used in the composition of immunogenic, and possibly vaccinating, preparations which are intended to protect a human or animal host against Leishmania.
    Type: Application
    Filed: March 27, 2008
    Publication date: August 21, 2008
    Inventors: Yosser Ben Achour, Mehdi Chenik, Hechmi Louzir, Koussay Dellagi
  • Publication number: 20060211056
    Abstract: A purified Leishmania infantum polypeptide comprising at least 10 consecutive amino acids of a protein is provided. The protein is mitochondrial integral ADP/ATP carrier protein, NADH-cytochrome b5 reductase, mitochondrial carrier protein, guanine nucleotide binding protein beta subunit (LACK), aldehyde reductase, ubiquinol-cytochrome-c reductase Rieske iron-sulfur protein, truncated elongation factor 1-alpha having a molecular weight as determined by SDS-PAGE of 36.4 kDa, truncated elongation factor 1-alpha having a molecular weight as determined by SDS-PAGE of 34.5 kDa, or truncated elongation factor 1-alpha having a molecular weight as determined by SDS-PAGE of 30.6 kDa. Methods for using the polypeptides for diagnosing MVL are disclosed.
    Type: Application
    Filed: January 24, 2006
    Publication date: September 21, 2006
    Inventors: Koussay Dellagi, Sayda Kamoun-Essghaier, Ikram Guizani
  • Publication number: 20050119460
    Abstract: The invention relates to the field of combating leishmaniases. Said invention results from the isolation, from wild isolates of Leishmania major, of a protein-coding gene known as LmPDI which has two regions that are identical to the sequence (Cys-Gly-His-Cys) of the potential active site of the protein disulphide isomerases (PDI). The LmPDI protein is predominantly expressed in the most virulent isolates of the parasite. Said protein forms a novel therapeutic target for developing anti-leishmaniasis medicaments and a novel element that can be used in the composition of immunogenic, and possibly vaccinating, preparations which are intended to protect a human or animal host against Leishmania.
    Type: Application
    Filed: December 12, 2003
    Publication date: June 2, 2005
    Inventors: Yosser Ben Achour, Mehdi Chenik, Hechmi Louzir, Koussay Dellagi