Bioactive compositions and methods for their preparation and use
A method for preparing a bioactive composition containing conditioned cell culture medium is disclosed. The method comprises culturing cells of two or more eukaryotic cell line to form conditioned culture media, separating the cultured cells from the conditioned culture media, and combining conditioned culture media to form a bioactive composition. Novel bioactive compositions, formulations and their use in treating of a variety of diseases and health conditions are also disclosed.
1. A method for treating an eye condition in a subject in need thereof, comprising administering to said subject a therapeutically effective amount of a bioactive formulation that comprises a composition prepared by
culturing cells of a first cell line and a second cell line in a first and a second culture medium, wherein said cultured cells secrete extracellular products into said culture medium so that a first conditioned culture medium and a second conditioned culture medium are formed;
separating said first and second conditioned culture media from respective said cultured cells; and
combining said first and said second conditioned culture media to form the composition,
wherein said first and second cell lines are an adult human adipose derived stem cell (ADSC) line and a fetal human fibroblast cell line.
2. The method of claim 1 , wherein said administering comprises topical administration of said bioactive formulation to an eye of said subject via a carrier vehicle selected from the group consisting of a liquid drop, a liquid wash, an ointment, a cream, a gel, a powder, a salve, a lotion, a foam, a spray, and a liposome.
3. The method of claim 2 , wherein said bioactive formulation is administered topically to the ocular surface or the immediate vicinity of an eye of said subject.
4. The method of claim 2 , wherein said administering comprises infusion of said bioactive formulation to an eye of said subject via a device selected from the group consisting of a pump-catheter system, a continuous or selective release device or material, and a contact lens.
5. The method of claim 2 , wherein said administering is via a sustained release insert or implant, subconjunctival injection, intraocular injection, periocular injection, retrobulbar injection, or intracameral injection.
6. The method of claim 2 , wherein said eye condition results at least in part from aqueous or evaporative dry eye disease, androgen deficiency, allergy, hyperosmolarity, keratoconjunctivitis sicca, meibomian gland disease, estrogen replacement therapy, refractive surgery, LASIK, corneal transplant, corneal ulcer, reduced tear film breakup time, compromised tear film, allergy, ocular surface disorders, increased protease levels in the tear film and at the ocular surface, chronic inflammation, Sjogren's syndrome, or a combination of any thereof.
7. The method of claim 2 , comprising topically administering said bioactive formulation together with one or more ophthalmically acceptable agents selected from the group consisting of a demulcent, an excipient, an astringent, a vasoconstrictor, an emollient, and an electrolyte salt.
8. The method of claim 1 , wherein said first cell line is a StemPro® human adipose-derived stem cell (ADSC) line provided by Life Technologies Catalog Number R7788115.
9. The method of claim 1 , wherein said second cell line is a fetal human dermal fibroblast (HDF-f) cell line provided by ScienCell Research Laboratories Catalog Number 2300.
10. The method of claim 1 , wherein said bioactive formulation further includes a third culture medium conditioned by cells of a third cell line.
11. The method of claim 10 , wherein said third cell line is a limbal stem cell line.
12. The method of claim 1 , wherein said first cell line is a StemPro® human adipose-derived stem cell (ADSC) line provided by Life Technologies Catalog Number R7788115, and said second cell line is a fetal human dermal fibroblast (HDF-f) cell line provided by ScienCell Research Laboratories Catalog Number 2300.
13. The method of claim 1 , wherein each of said culturing steps is performed for at least 2 days, at least 5 days, at least 7 days, at least 8days, or at least 10 days.
14. The method of claim 1 , wherein each of said culturing steps is carried out until said culture reaches at least 85%, at least 90%, at least 95%, or at least 98% cell confluence.
15. The method of claim 1 , wherein cells of at least one of said cell lines have been passaged multiple times to produce said conditioned culture media.
16. The method of claim 15 , wherein said cells have been passaged at least 2, 3, 4, 5, 6, 7, 8, 9, or 10 times to produce said conditioned culture media.
17. The method of claim 15 , wherein cells of at least one of said cell lines are passaged after reaching at least 85%, at least 90%, at least 95%, or at least 98% cell confluence.
18. The method of claim 1 , wherein said bioactive formulation comprises a ratio of said first conditioned culture medium to said second conditioned culture medium of between about 1:10 to about 10:1.
19. The method of claim 18 , wherein said ratio is about 1:1.
20. The method of claim 1 , wherein said culturing cells of said fetal fibroblast is carried out at 5% oxygen.
21. The method of claim 1 , wherein said cells of said fetal fibroblast cell line have been passaged 10 times or fewer to produce said condition culture media.