Patents Assigned to LYSANDO AG
  • Patent number: 11958890
    Abstract: The present invention relates to a polypeptide comprising a Gram negative endolysin and a peptide selected from the group consisting of an antimicrobial peptide, an amphipathic peptide, a cationic peptide, a sushi peptide or a defensin, wherein the endolysin in turn is selected from the group consisting of SEQ ID NO:1, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8, SEQ ID NO:9 and sequences having at least 80% sequence identity with SEQ ID NO:1, SEQ ID NO:2, SEQ ID NO:3, SEQ ID NO:4, SEQ ID NO:5, SEQ ID NO:6, SEQ ID NO:7, SEQ ID NO:8 and/or SEQ ID NO:9. The present invention relates also to corresponding nucleic acids, vectors, bacteriophages, host cells, compositions and kits. The present inventions also relates to the use of said polypeptides, nucleic acids, vectors, bacteriophages, host cells, compositions and kits in methods for treatment of the human or animal body by surgery or therapy or in diagnostic methods practiced on the human or animal body.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: April 16, 2024
    Assignee: LYSANDO AG
    Inventors: Manfred Biebl, Martin Griessl
  • Patent number: 11427812
    Abstract: The present invention relates to the field of antimicrobial agents active against Staphylococcus aureus bacteria. In particular, the present invention relates to polypeptides comprising the CHAP domain of LysK endolysin, the M23 endopeptidase domain of lysostaphin, the cell wall binding domain (CBD) of ALE-1, and a further peptide selected from the group consisting of an antimicrobial peptide, an amphipathic peptide, a cationic peptide, a hydrophobic peptide, a sushi peptide and a defensin. In addition, the present invention relates to nucleic acids encoding such polypeptides, vectors comprising such nucleic acids, and corresponding host cells, compositions and devices. Finally, the present invention relates to applications of the inventive polypeptides, in particular in the pharmaceutical field.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: August 30, 2022
    Assignee: LYSANDO AG
    Inventors: Manfred Biebl, Martin Griessl, Kristin Neumann
  • Patent number: 11136570
    Abstract: The present invention relates to antimicrobial agents against Gram-positive bacteria, in particular to fusion proteins composed of an enzyme having the activity of degrading the cell wall of Gram-positive bacteria and an additional peptide stretch fused to the enzyme at the N- or C-terminus. Moreover, the present invention relates to nucleic acid molecules encoding said fusion protein, vectors comprising said nucleic acid molecules and host cells comprising either said nucleic acid molecules or said vectors. In addition, the present invention relates to said fusion protein for use as a medicament, in particular for the treatment or prevention of Gram-positive bacterial infections, as diagnostic means or as cosmetic substance. The present invention also relates to the treatment or prevention of Gram-positive bacterial contamination of foodstuff, of food processing equipment, of food processing plants, of surfaces coming into contact with foodstuff, of medical devices, of surfaces in hospitals and surgeries.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: October 5, 2021
    Assignee: LYSANDO AG
    Inventor: Stefan Miller
  • Patent number: 11052137
    Abstract: The application relates to antimicrobial agents against Gram-negative bacteria, in particular to fusion proteins composed of an enzyme having the activity of degrading the cell wall of Gram-negative bacteria and a peptide stretch fused to the enzyme at the N- or C-terminus, as well as pharmaceutical compositions comprising the same. Moreover, it relates to nucleic acid molecules encoding such a fusion protein, vectors comprising said nucleic acid molecules and host cells comprising either said nucleic acid molecules or said vectors. In addition, it relates to such a fusion protein for use as a medicament, in particular for the treatment or prevention of Gram-negative bacterial infections, as diagnostic means or as cosmetic substance. The application also relates to the treatment or prevention of Gram-negative bacterial contamination of foodstuff, of food processing equipment, of food processing plants, of surfaces coming into contact with foodstuff, of medical devices, of surfaces in hospitals and surgeries.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: July 6, 2021
    Assignees: LYSANDO AG, KATHOLIEKE UNIVERSITES LEUVEN, K.U. LEUVEN R&D
    Inventors: Rob Lavigne, Stefan Miller, Yves Briers, Guido Volckaert, Maarten Walmagh
  • Patent number: 10485854
    Abstract: The present invention relates to methods of eliminating, reducing or preventing bacterial biofilms by means of a fusion protein comprising an endolysin, an autolysin or a bacteriocin to which a peptide with membrane or LPS disrupting activity is fused. Further, the present invention relates to fusion proteins for use as a medicament, in particular for the treatment or prevention of Gram-negative and/or Gram-positive bacterial infections associated with bacterial biofilm, as diagnostic means, disinfectant or as cosmetic substance. The present invention also relates to the removal or reduction or prevention of Gram-negative and/or Gram-positive bacterial contamination associated with bacterial biofilm of foodstuff, of food processing equipment, of food processing plants, of surfaces coming into contact with foodstuff, of medical devices, of surfaces in hospitals and surgeries.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: November 26, 2019
    Assignee: LYSANDO AG
    Inventor: Stefan Miller
  • Publication number: 20190209663
    Abstract: The application relates to antimicrobial agents against Gram-negative bacteria, in particular to fusion proteins composed of an enzyme having the activity of degrading the cell wall of Gram-negative bacteria and a peptide stretch fused to the enzyme at the N- or C-terminus, as well as pharmaceutical compositions comprising the same. Moreover, it relates to nucleic acid molecules encoding such a fusion protein, vectors comprising said nucleic acid molecules and host cells comprising either said nucleic acid molecules or said vectors. In addition, it relates to such a fusion protein for use as a medicament, in particular for the treatment or prevention of Gram-negative bacterial infections, as diagnostic means or as cosmetic substance. The application also relates to the treatment or prevention of Gram-negative bacterial contamination of foodstuff, of food processing equipment, of food processing plants, of surfaces coming into contact with foodstuff, of medical devices, of surfaces in hospitals and surgeries.
    Type: Application
    Filed: October 24, 2018
    Publication date: July 11, 2019
    Applicants: LYSANDO AG, KATHOLIEKE UNIVERSITEIT LEUVEN, K.U. LEUVEN R&D
    Inventors: Rob Lavigne, Stefan Miller, Yves Briers, Guido Volckaert, Maarten Walmagh
  • Patent number: 10329550
    Abstract: The present invention relates to polypeptides comprising an amino sequence selected from the group consisting of: SEQ ID NO: 1, and fragments and derivatives of these. The invention also relates to the corresponding nucleic acids vectors, host cells and compositions. The present inventions also relates to the use of said polypeptides, nucleic acids, vectors, host cells and compositions in a method for treatment of the human or animal body by surgery or therapy or in diagnostic methods practiced on the human or animal body, in particular for the treatment or prevention of Gram-negative bacterial infections. The polypeptides, nucleic acids, vectors, host cells and compositions according to the invention may also be used as an antimicrobial in food or feed, or in cosmetics, as disinfecting agent or in the environmental field.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: June 25, 2019
    Assignee: LYSANDO AG
    Inventors: Yves Briers, Rob Lavigne, Martin Griessl
  • Patent number: 10184120
    Abstract: The present invention relates to polypeptides comprising an amino acid sequence exhibiting at least about 90% sequence identity with the sequence of SEQ ID NO: 1. Said polypeptides preferably degrade the peptidoglycan of Gram-negative bacteria, in particular of Pseudomonas and/or Campylobacter bacteria. In addition, the present invention relates to nucleic acids encoding such polypeptides, vectors comprising such nucleic acids, and corresponding host cells. Finally, the present invention relates to compositions comprising such polypeptides, nucleic acids, vectors, and/or host cells according to the present invention.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: January 22, 2019
    Assignee: LYSANDO AG
    Inventors: Stefan Miller, Reinhard Sterner, Heike Stüer
  • Patent number: 10167462
    Abstract: The present invention relates to polypeptides comprising an amino acid sequence exhibiting at least about 90% sequence identity with the sequence of SEQ ID NO: 1. Said polypeptides preferably degrade the peptidoglycan of Gram-negative bacteria, in particular of Pseudomonas and/or Campylobacter bacteria. In addition, the present invention relates to nucleic acids encoding such polypeptides, vectors comprising such nucleic acids, and corresponding host cells. Finally, the present invention relates to compositions comprising such polypeptides, nucleic acids, vectors, and/or host cells according to the present invention.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: January 1, 2019
    Assignee: LYSANDO AG
    Inventor: Irina Anosova
  • Patent number: 10137175
    Abstract: The application relates to antimicrobial agents against Gram-negative bacteria, in particular to fusion proteins composed of an enzyme having the activity of degrading the cell wall of Gram-negative bacteria and a peptide stretch fused to the enzyme at the N- or C-terminus, as well as pharmaceutical compositions comprising the same. Moreover, it relates to nucleic acid molecules encoding such a fusion protein, vectors comprising said nucleic acid molecules and host cells comprising either said nucleic acid molecules or said vectors. In addition, it relates to such a fusion protein for use as a medicament, in particular for the treatment or prevention of Gram-negative bacterial infections, as diagnostic means or as cosmetic substance. The application also relates to the treatment or prevention of Gram-negative bacterial contamination of foodstuff, of food processing equipment, of food processing plants, of surfaces coming into contact with foodstuff, of medical devices, of surfaces in hospitals and surgeries.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: November 27, 2018
    Assignees: LYSANDO AG, KATHOLIEKE UNIVERSITEIT LEUVEN, K.U. LEUVEN R&D
    Inventors: Rob Lavigne, Stefan Miller, Yves Briers, Guido Volckaert, Maarten Walmagh
  • Publication number: 20170051266
    Abstract: The present invention relates to polypeptides comprising an amino sequence selected from the group consisting of: SEQ ID NO: 1, and fragments and derivatives of these. The invention also relates to the corresponding nucleic acids vectors, host cells and compositions. The present inventions also relates to the use of said polypeptides, nucleic acids, vectors, host cells and compositions in a method for treatment of the human or animal body by surgery or therapy or in diagnostic methods practiced on the human or animal body, in particular for the treatment or prevention of Gram-negative bacterial infections. The polypeptides, nucleic acids, vectors, host cells and compositions according to the invention may also be used as an antimicrobial in food or feed, or in cosmetics, as disinfecting agent or in the environmental field.
    Type: Application
    Filed: February 13, 2015
    Publication date: February 23, 2017
    Applicant: Lysando AG
    Inventors: Yves BRIERS, Rob LAVIGNE, Martin GRIESSL
  • Patent number: 9534223
    Abstract: The present invention relates to methods of eliminating, reducing or preventing bacterial biofilms by means of a fusion protein comprising an endolysin, an autolysin or a bacteriocin to which a peptide with membrane or LPS disrupting activity is fused. Further, the present invention relates to fusion proteins for use as a medicament, in particular for the treatment or prevention of Gram-negative and/or Gram-positive bacterial infections associated with bacterial biofilm, as diagnostic means, disinfectant or as cosmetic substance. The present invention also relates to the removal or reduction or prevention of Gram-negative and/or Gram-positive bacterial contamination associated with bacterial biofilm of foodstuff, of food processing equipment, of food processing plants, of surfaces coming into contact with foodstuff, of medical devices, of surfaces in hospitals and surgeries.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: January 3, 2017
    Assignee: LYSANDO AG
    Inventor: Stefan Miller
  • Patent number: 9388400
    Abstract: The present invention relates to a composition having the activity of degrading the cell wall of a Mycobacterium species comprising: (a) a first fusion protein including (i) a domain with a first enzymatic activity, the enzymatic activity being at least one or more of the following: N-acetyl-b-D-muramidase (lysozyme, lytic transglycosylase), N-acetyl-b-D-glucosaminidase, N-acetylmuramoyl-L-alanine amidase, L-alanoyl-D-glutamate (LD) endopeptidase, c-D-glutamyl-meso-diaminopimelic acid (DL) peptidase, D-Ala-m-DAP (DD) endopeptidase, or m-DAP-m-DAP (LD) endopeptidase, (ii) at least one peptide stretch fused to the N- or C-terminus of the domain with the first enzymatic activity; and (iii) a protein transduction domain (PTD) being at the N- or C-terminus of the first fusion protein; and (b) a second fusion protein including (i) a domain with a second enzymatic activity, the enzymatic activity being at least one or more of the following: lipolytic activity, cutinase, mycolarabinogalactanesterase, or alpha/beta hy
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: July 12, 2016
    Assignee: LYSANDO AG
    Inventors: Stefan Miller, Robert Andreas Fischer
  • Patent number: 9169472
    Abstract: The present invention relates to a polypeptide with an amino acid sequence according to SEQ ID NO: 1 and fragments or derivatives thereof. The present invention further relates to fusion proteins comprising said polypeptide and an additional peptide stretch fused to said polypeptide at the N- or C-terminus. Moreover, the present invention relates to nucleic acid molecules encoding said polypeptide or fusion protein, vectors comprising said nucleic acid molecules and host cells comprising either said nucleic acid molecules or said vectors. In addition, the present invention relates to said polypeptide or fusion protein for use as a medicament, in particular for the treatment or prevention of Gram-negative bacterial infections, as diagnostic means, as cosmetic substance or as sanitizing agent.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 27, 2015
    Assignees: LYSANDO AG, KATHOLIEKE UNIVERSITEIT LEUVEN, K.U. LEUVEN R&D
    Inventors: Yves Briers, Rob Lavigne, Maarten Walmagh, Stefan Miller
  • Publication number: 20150118731
    Abstract: The application relates to antimicrobial agents against Gram-negative bacteria, in particular to fusion proteins composed of an enzyme having the activity of degrading the cell wall of Gram-negative bacteria and a peptide stretch fused to the enzyme at the N- or C-terminus, as well as pharmaceutical compositions comprising the same. Moreover, it relates to nucleic acid molecules encoding such a fusion protein, vectors comprising said nucleic acid molecules and host cells comprising either said nucleic acid molecules or said vectors. In addition, it relates to such a fusion protein for use as a medicament, in particular for the treatment or prevention of Gram-negative bacterial infections, as diagnostic means or as cosmetic substance. The application also relates to the treatment or prevention of Gram-negative bacterial contamination of foodstuff, of food processing equipment, of food processing plants, of surfaces coming into contact with foodstuff, of medical devices, of surfaces in hospitals and surgeries.
    Type: Application
    Filed: November 7, 2014
    Publication date: April 30, 2015
    Applicants: LYSANDO AG, KATHOLIEKE UNIVERSITEIT LEUVEN, K.U. LEUVEN R&D
    Inventors: Rob LAVIGNE, Stefan MILLER, Yves BRIERS, Guido VOLCKAERT, Maarten WALMAGH
  • Publication number: 20150024469
    Abstract: The present invention relates to a polypeptide with an amino acid sequence according to SEQ ID NO: 1 and fragments or derivatives thereof. The present invention further relates to fusion proteins comprising said polypeptide and an additional peptide stretch fused to said polypeptide at the N- or C-terminus. Moreover, the present invention relates to nucleic acid molecules encoding said polypeptide or fusion protein, vectors comprising said nucleic acid molecules and host cells comprising either said nucleic acid molecules or said vectors. In addition, the present invention relates to said polypeptide or fusion protein for use as a medicament, in particular for the treatment or prevention of Gram-negative bacterial infections, as diagnostic means, as cosmetic substance or as sanitizing agent.
    Type: Application
    Filed: September 3, 2014
    Publication date: January 22, 2015
    Applicants: LYSANDO AG, KATHOLIEKE UNIVERSITEIT LEUVEN, K.U. LEUVEN R&D
    Inventors: Yves BRIERS, Rob LAVIGNE, Maarten WALMAGH, Stefan MILLER
  • Patent number: 8906365
    Abstract: The application relates to antimicrobial agents against Gram-negative bacteria, in particular to fusion proteins composed of an enzyme having the activity of degrading the cell wall of Gram-negative bacteria and a peptide stretch fused to the enzyme at the N- or C-terminus, as well as pharmaceutical compositions thereof. Moreover, it relates to nucleic acid molecules encoding such a fusion protein, vectors carrying the nucleic acid molecules and host cells transformed with either the nucleic acid molecules or the vectors. In addition, it relates to such a fusion protein for use as a medicament, in particular for the treatment or prevention of Gram-negative bacterial infections, as diagnostic means or as cosmetic substance. The application also relates to the treatment or prevention of Gram-negative bacterial contamination of foodstuff, of food processing equipment, of food processing plants, of surfaces coming into contact with foodstuff, of medical devices, of surfaces in hospitals and surgeries.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: December 9, 2014
    Assignees: Lysando AG, Katholieke Universiteit Leuven, K.U. Leuven R&D
    Inventors: Rob Lavigne, Stefan Miller, Yves Briers, Guido Volckaert, Maarten Walmagh
  • Patent number: 8846865
    Abstract: The present invention relates to a polypeptide with an amino acid sequence according to SEQ ID NO: 1 and fragments or derivatives thereof. The present invention further relates to fusion proteins comprising said polypeptide and an additional peptide stretch fused to said polypeptide at the N- or C-terminus. Moreover, the present invention relates to nucleic acid molecules encoding said polypeptide or fusion protein, vectors comprising said nucleic acid molecules and host cells comprising either said nucleic acid molecules or said vectors. In addition, the present invention relates to said polypeptide or fusion protein for use as a medicament, in particular for the treatment or prevention of Gram-negative bacterial infections, as diagnostic means, as cosmetic substance or as sanitizing agent.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: September 30, 2014
    Assignees: Lysando AG, Katholieke Universiteit Leuven, K.U. Leuven R&D
    Inventors: Yves Briers, Rob Lavigne, Maarten Walmagh, Stefan Miller
  • Publication number: 20140120074
    Abstract: The present invention relates to a fusion protein comprising an endolysin with an amino acid sequence according to SEQ ID NO: 1 and fragments and/or derivatives thereof and an additional cationic or polycationic peptide, an amphipatic peptide, a sushi peptide, a defensin, a hydrophobic peptide or an antimicrobial peptide fused to said endolysin, fragment and/or derivative at the N- and/or C-terminus. Moreover, the present invention relates to nucleic acid molecules encoding said fusion protein, vectors comprising said nucleic acid molecules and host cells comprising either said nucleic acid molecules or said vectors. In addition, the present invention relates to said fusion protein for use as a medicament, in particular for the treatment or prevention of staphylococcal infections, as diagnostic means, as cosmetic substance or as sanitizing agent.
    Type: Application
    Filed: April 27, 2012
    Publication date: May 1, 2014
    Applicant: LYSANDO AG
    Inventor: Stefan Miller
  • Publication number: 20130344055
    Abstract: The present invention relates to a fusion protein composed of an enzyme having the activity of degrading the cell wall of Gram-negative bacteria and/or Gram-positive bacteria and at least two peptide stretches fused to the enzyme at the N- or C-terminus, wherein the peptide stretches are distinct and selected from the group of synthetic amphiphatic peptide, synthetic cationic peptide, synthetic polycationic peptide, synthetic hydrophobic peptide, or naturally occurring antimicrobial peptide, like sushi peptide and defensin. Moreover, the present invention relates to nucleic acid molecules encoding said fusion protein, vectors comprising said nucleic acid molecules and host cells comprising either said nucleic acid molecules or said vectors. In addition, the present invention relates to said fusion protein for use as a medicament, diagnostic means, cosmetic substance, a disinfectant or a food additive.
    Type: Application
    Filed: December 23, 2011
    Publication date: December 26, 2013
    Applicants: KATHOLIEKE UNIVERSITEIT LEUVEN, LYSANDO AG
    Inventors: Yves Briers, Rob Lavigne, Maarten Walmagh, Stefan Miller