Extracellular Matrix Materials as Vaccine Adjuvants for Diseases Associated with Infectious Pathogens or Toxins

a technology of extracellular matrix and infectious pathogens, applied in the field of vaccines, can solve the problems of poor effect of alum for influenza vaccination, unfavorable th2 based immune response, and inability to offer optimal protection against several important diseases

Inactive Publication Date: 2010-06-03
UNIV OF NOTRE DAME DU LAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]The adjuvant effect of the ECM, such as the SIS adjuvant preparation, extends to a vaccine administered to protect against diseases associated with an infectious pathogen or biological toxin. In some embodiments, the present invention provides an adjuvant comprising an SIS gel or particulate SIS. Administered together with tetanus toxoid, these preparations confer protective immunity in vivo to animals challenged with tetanus toxin.

Problems solved by technology

While the usefulness of alum is well established for some applications, it has limitations.
Unfortunately, a Th2 based immune response is not likely to offer optimal protection against several important infectious diseases, including tuberculosis (TB), human immunodeficiency virus (HIV) and hepatitis C virus (HCV).
Alum is poorly effective for influenza vaccination and inconsistently elicits a cell mediated immune response.

Method used

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  • Extracellular Matrix Materials as Vaccine Adjuvants for Diseases Associated with Infectious Pathogens or Toxins
  • Extracellular Matrix Materials as Vaccine Adjuvants for Diseases Associated with Infectious Pathogens or Toxins
  • Extracellular Matrix Materials as Vaccine Adjuvants for Diseases Associated with Infectious Pathogens or Toxins

Examples

Experimental program
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example 1

Materials and Methods for ECM as an Adjuvant for a Vaccine against Diseases Associated with an Infectious Pathogen

[0062]The present example provides some examples of materials and methods that may be used in the practice of the present invention.

[0063]Small Intestinal Submucosa (SIS)

[0064]Small Intestinal Submucosa (SIS) was obtained from Cook Biotech, Inc. (West Lafayette, Ind.). Experimental grade material was provided for use in the present studies of an SIS preparation that was described as having been prepared by harvesting porcine jejunum and placing 10- to 20-cm lengths into saline solution (31-33). Following removal of all mesenteric tissues, the jejunal segment was everted and the tunica mucosa abraded using a longitudinal wiping motion with a scalpel handle and moistened gauze. The serosa and tunica muscularis were then gently removed using the same procedure. The remaining tissue was disinfected with peracetic acid, rinsed extensively in high purity water, and sterilized ...

example 2

Use of Adjuvant in the Inhibition of Tetanus

[0071]To determine if SIS can act as an adjuvant for vaccines against diseases associated with infectious pathogens or biological toxins, preparations were made with tetanus toxoid, an inactivated form of tetanus toxin. Both gel SIS and SIS particles produced from a sheet of single layer SIS were evaluated as adjuvants. Briefly, groups of 15 Balb / C female mice (Harlan, Inc., Indianapolis, Ind.) were vaccinated initially (0.1 ml volume / dose) and again, five weeks later with one of the following:

[0072]Particulate SIS

[0073]Gel SIS

[0074]Tetanus toxoid (TT; 0.03 ug / dose)

[0075]TT (0.05 ug / dose)

[0076]TT (0.03 ug / dose)+alum (alhydrogel)

[0077]TT (0.05 ug / dose)+alum (alhydrogel)

[0078]TT (0.03 ug / dose)+particulate SIS

[0079]TT (0.05 ug / dose)+particulate SIS

[0080]TT (0.03 ug / dose)+gel SIS

[0081]TT (0.05 ug / dose)+gel SIS

[0082]Untreated control group

[0083]Five weeks after the second vaccination, mice were challenged with a lethal dose of tetanus toxin (1 ...

example 3

Exemplary Infectious Pathogens

[0087]The present example demonstrates the utility of the present invention with disease associated with a wide variety of infectious pathogens and biological toxins, including by way of example and not exclusion, tetanus, influenza, rabies, viral hepatitis, diphtheria, anthrax, Streptococcus pneumoniae infection, malaria, leishmaniasis, ricin toxicosis, and Staphylococcal enterotoxin B toxicosis.

TABLE 2Classification of Common Vaccines for HumansDisease or PathogenType of VaccineWhole Organisms:Bacterial cells:CholeraInactivatedPlagueInactivatedTuberculosisAttenuated BCG+Salmonella typhiAttenuatedViral Particles:InfluenzaInactivatedMeaslesAttenuatedMumpsAttenuatedRubellaAttenuatedPolio (Sabin / OPV)AttenuatedPolio (Salk / IPV)InactivatedV. zosterAttenuatedYellow feverAttenuatedType of Vaccine(Purified) MacromoleculesToxoids:DiphtheriaInactivated exotoxinTetanusInactivated exotoxinacellular PertussisInactivated exotoxinsCapsular polysaccharide:Haemophilus i...

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Abstract

Disclosed are vaccines and vaccine adjuvants useful in the treatment and / or prevention of infection and diseases associated with infectious pathogens, such as tetanus, as well as diseases associated with biological toxins. Also provided are methods of preparing an adjuvant and the vaccine containing the adjuvant. Methods are also provided for vaccinating / immunizing an animal against infection and diseases associated with infectious pathogens, such as tetanus, and other diseases associated with biological toxins. Adjuvant materials are presented that are prepared from an extracellular matrix material. The adjuvants are demonstrated to enhance the immunogenicity of an infectious pathogen antigen or biological toxin antigen of interest, as well as to enhance the survival of an immunized animal.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a divisional of U.S. patent application Ser. No. 11 / 699,448 filed Jan. 30, 2007, which is a Continuation-in-part of U.S. patent application Ser. No. 11 / 583,771, filed Oct. 20, 2006, which claims priority from U.S. Provisional Patent Application No. 60 / 730,379, filed Oct. 27, 2005. The entire disclosure and contents of the above applications are hereby incorporated by reference.STATEMENT OF JOINT RESEARCH AGREEMENT[0002]In compliance with 37 C.F.R. §1.71(g)(1), disclosure is herein made that the claimed invention was made pursuant to a Joint Research Agreement as defined in 35 U.S.C. 103(c)(3), that was in effect on or before the date the claimed invention was made, and as a result of activities undertaken within the scope of the Joint Research Agreement, by or on the behalf of the University of Notre Dame and Cook Biotech, Inc. (West Lafayette, Ind.).BACKGROUND[0003]1. Field of the Invention[0004]The present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K39/12A61K39/08A61K39/145A61K39/125A61K39/09A61K39/05A61K39/085
CPCA61K39/08A61K2039/55588A61K2039/55511A61K39/39A61P31/04A61P37/04A61P39/02Y02A50/30
Inventor SUCKOW, MARK A.WOLTER, WILLIAM R.HALL, PAUL J.
Owner UNIV OF NOTRE DAME DU LAC
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