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1. WO2022165023 - COMBINATION OF INTRACELLULAR AND EXTRACELLULAR PHOTOSENSITIZERS FOR TREATMENT OF BACTERIAL INFECTION

Publication Number WO/2022/165023
Publication Date 04.08.2022
International Application No. PCT/US2022/014086
International Filing Date 27.01.2022
IPC
C12N 1/20 2006.1
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
1Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
20Bacteria; Culture media therefor
C09K 11/06 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11Luminescent, e.g. electroluminescent, chemiluminescent, materials
06containing organic luminescent materials
C07K 14/71 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
14Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
435from animals; from humans
705Receptors; Cell surface antigens; Cell surface determinants
71for growth factors; for growth regulators
CPC
A61N 5/062
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
5Radiation therapy
06using light
0613Apparatus adapted for a specific treatment
062Photodynamic therapy, i.e. excitation of an agent
A61P 31/04
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
31Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
04Antibacterial agents
C09K 11/06
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
11Luminescent, e.g. electroluminescent, chemiluminescent materials
06containing organic luminescent materials
C09K 2211/1011
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
2211Chemical nature of organic luminescent or tenebrescent compounds
10Non-macromolecular compounds
1003Carbocyclic compounds
1011Condensed systems
C09K 2211/1044
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
2211Chemical nature of organic luminescent or tenebrescent compounds
10Non-macromolecular compounds
1018Heterocyclic compounds
1025characterised by ligands
1044containing two nitrogen atoms as heteroatoms
C09K 2211/1088
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
2211Chemical nature of organic luminescent or tenebrescent compounds
10Non-macromolecular compounds
1018Heterocyclic compounds
1025characterised by ligands
1088containing oxygen as the only heteroatom
Applicants
  • VANDERBILT UNIVERSITY [US]/[US]
Inventors
  • SKAAR, Eric
Agents
  • DECKER, Mandy Wilson
  • MYERS, JR., Richard S.
  • RITCHIE, Sean P.
  • WRIGHT, Terry L.
  • STEWART, Gary N.
  • HAEBERLIN, Jeffrey A.
  • NAGLE, JR., David W.
  • HAYNE, James R.
Priority Data
63/142,25127.01.2021US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) COMBINATION OF INTRACELLULAR AND EXTRACELLULAR PHOTOSENSITIZERS FOR TREATMENT OF BACTERIAL INFECTION
(FR) COMBINAISON DE PHOTOSENSIBILISATEURS INTRACELLULAIRE ET EXTRACELLULAIRE DE TRAITEMENT D'UNE INFECTION BACTÉRIENNE
Abstract
(EN) A method of inducing death or inhibiting growth or reproduction of a Gram-positive bacterial cell involves contacting the bacterial cell with a coproporphyrinogen oxidase (CgoX) activator, thereby promoting accumulation of coproporphyrin III (CPIII) in the bacterial cell, where the CPIII serves as an intracellular photosensitizer; contacting the bacterial cell with a photosensitizer conjugated to an iron-regulated surface determinant (Isd) protein targeting moiety, which Isd proteins are expressed on the service of the bacterial cell such that the conjugated photosensitizer serves as an extracellular photosensitizer; exposing the bacterial cell to light having a first excitation wavelength of the intracellular photosensitizer; and exposing the bacterial cell to light having a second excitation wavelength of the extracellular photosensitizer.
(FR) L'invention concerne une méthode d'induction de mort ou d'inhibition de croissance ou de reproduction d'une cellule bactérienne à Gram positif consistant à mettre en contact la cellule bactérienne avec un activateur coproporphyrinogène oxydase (CgoX), favorisant ainsi l'accumulation de coproporphyrine III (CPIII) dans la cellule bactérienne, la CPIII servant de photosensibilisateur intracellulaire ; à mettre en contact la cellule bactérienne avec un photosensibilisateur conjugué à une fraction de ciblage de protéines de déterminant de surface à régulation de fer (Isd), lesdites protéines Isd étant exprimées sur le service de la cellule bactérienne de sorte que le photosensibilisateur conjugué serve de photosensibilisateur extracellulaire ; à exposer la cellule bactérienne à de la lumière ayant une première longueur d'onde d'excitation du photosensibilisateur intracellulaire ; et à exposer la cellule bactérienne à de la lumière ayant une seconde longueur d'onde d'excitation du photosensibilisateur extracellulaire.
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