Compositions and methods for microbe storage and delivery
The present invention relates to the field of bacteriology. In particular, the invention relates to compositions of probiotic microbes and methods for making and using such compositions, e.g. in the treatment and prevention of catheter associated urinary tract infections.
1. A composition for preparing a medical lubricant gel, comprising a mixture of a) a probiotic microbe, b) a pharmaceutically acceptable gelling agent, and c) a pharmaceutically acceptable first protective agent, wherein said mixture is in freeze-dried form; wherein said gelling agent is hydroxyethyl cellulose; and wherein said protective agent is selected from the group consisting of non-fat milk solids, trehalose, glycerol, betaine, sucrose, glucose, lactose, dextran, polyethylene glycol, sorbitol, mannitol, poly vinyl propylene, potassium glutamate, monosodium glutamate, Tween 20 detergent, Tween 80 detergent, and an amino acid hydrochloride.
2. The composition of claim 1 , further comprising a pharmaceutically acceptable second protective agent, wherein said second protective agent is different from said first protective agent, and is selected from the group consisting of non-fat milk solids, trehalose, glycerol, betaine, sucrose, glucose, lactose, dextran, polyethylene glycol, sorbitol, mannitol, poly vinyl propylene, potassium glutamate, monosodium glutamate, Tween 20 detergent, Tween 80 detergent, and an amino acid hydrochloride.
3. The composition of claim 1 , wherein said probiotic microbe is a strain of E. coli.
4. The composition of claim 3 , wherein said strain of E. coli is E. coli 83972.
5. The composition of claim 3 , wherein said strain of E. coli is E. coli HU2117.
6. The composition of claim 1 , wherein said first protective agent is sucrose.
7. The composition of claim 2 , wherein said second protective agent different from said first protective agent, and is selected from the group consisting of non-fat milk solids, trehalose, glycerol, betaine, glucose, lactose, dextran, polyethylene glycol, sorbitol, mannitol, poly vinyl propylene, potassium glutamate, monosodium glutamate, Tween 20 detergent, Tween 80 detergent, and an amino acid hydrochloride.
8. The composition of claim 1 , wherein said composition is produced by a method comprising:
a) providing in an aqueous fluid a mixture comprising:
i) said probiotic microbe;
ii) said pharmaceutically acceptable gelling agent; and
iii) said pharmaceutically acceptable first protective agent,
b) freeze-drying said mixture to produce a dried preparation.
9. The composition of claim 8 , wherein said mixture further comprises a pharmaceutically acceptable second protective agent, wherein said second protective agent is different from said first protective agent, and is selected from the group consisting of non-fat milk solids, trehalose, glycerol, betaine, sucrose, glucose, lactose, dextran, polyethylene glycol, sorbitol, mannitol, poly vinyl propylene, potassium glutamate, monosodium glutamate, Tween 20 detergent, Tween 80 detergent, and an amino acid hydrochloride.
10. The composition of claim 8 , wherein said probiotic microbe is a strain of E. coli.
11. The composition of claim 10 , wherein said strain of E. coli is E. coli 83972.
12. The composition of claim 10 , wherein said strain of E. coli is E. coli HU2117.
13. The composition of claim 8 , wherein said first protective agent is sucrose.
14. The composition of claim 13 , wherein said second protective agent different from said first protective agent, and is selected from the group consisting of non-fat milk solids, trehalose, glycerol, betaine, glucose, lactose, dextran, polyethylene glycol, sorbitol, mannitol, poly vinyl propylene, potassium glutamate, monosodium glutamate, Tween 20 detergent, Tween 80 detergent, and an amino acid hydrochloride.
15. The composition of claim 2 , wherein said mixture comprises:
a) a strain of E. coli selected from the group consisting or E. coli 83972 and E. coli HU2117;
b) sucrose; and
c) glycerol.
16. A method of administering a probiotic microbe to a subject, comprising:
a) providing a freeze-dried composition according to claim 1 ;
b) exposing said freeze dried composition to an aqueous fluid to form a gel comprising an effective amount of said probiotic microbe; and
c) contacting said subject with said gel.
17. The method of claim 16 , wherein contacting said subject with said gel comprises contacting a medical device with said gel to produce a treated device, and contacting said subject with said treated device.
18. The method of claim 17 , wherein said medical device is a urinary catheter.
19. The method of claim 16 , wherein said probiotic microbe is E. coli HU2117 or E. coli 83972.
20. A kit comprising a composition comprising a freeze dried composition according to claim 1 .
21. The kit of claim 20 , wherein said composition further comprises a pharmaceutically acceptable second protective agent.
22. The kit of claim 20 , further comprising a container of sterile aqueous fluid.
23. The kit of claim 20 , wherein said probiotic microbe is a strain of E. coli.
24. The kit of claim 23 , wherein said strain of E. coli is E. coli 83972.
25. The kit of claim 23 , wherein said strain of E. coli is E. coli HU2117.