Therapeutic modulation of vaginal epithelium boundary lubrication
The present invention relates to the management of vaginal health. In particular, the present invention relates to pharmaceutical compositions, and methods of use thereof, for treating diseases associated with compromised boundary lubrication at the vaginal epithelium.
1. A method of treating decreased vaginal boundary lubrication or a disease or condition associated therewith or of improving vaginal boundary lubrication, the method comprising topically administering to a vaginal surface of a subject in need thereof a therapeutically effective amount of isolated or purified lubricin or a lubricating fragment, multimer, or homolog thereof sufficient to improve vaginal boundary lubrication.
2. The method of claim 1 , wherein the disease or condition associated with decreased vaginal boundary lubrication is vaginal atrophy, dyspareunia, Sjogren's syndrome, menopause, androgen deficiency, estrogen deficiency, estrogen replacement therapy, allergy, chronic inflammation, menopause, premature menopause, chemotherapy, breastfeeding, surgical removal of the ovaries before menopause, genital lichen sclerosis, vulvodynia, bacterial vaginosis, herpes, candida, psoriasis, contact dermatitis, condylomata, or side effects of medications and aging.
3. The method of claim 1 , wherein the lubricin or lubricating fragment, multimer, or homolog thereof is formulated in a gel, an aqueous osmotically balanced salt solution, a multiphasic emulsion, or a slow- or extended-release device.
4. The method of claim 1 , wherein the therapeutically effective amount of lubricin or lubricating fragment, multimer, or homolog thereof is in a concentration of 10-10,000 μg/mL.
5. The method of claim 1 , wherein the lubricin or lubricating fragment, multimer, or homolog thereof has an average molar mass of between 50 kDa and 400 kDa.
6. The method of claim 1 , wherein the lubricin or lubricating fragment, multimer, or homolog thereof is a recombinant lubricin, or lubricating fragment, multimer, or homolog thereof, or a purified naturally occurring lubricin or lubricating fragment, multimer, or homolog thereof.
7. The method of claim 1 , further comprising administering a therapeutic agent selected from the group consisting of an androgen, androgen analogue, selective androgen receptor modulator, selective estrogen receptor modulator, estrogen antagonist, aromatase inhibitor, antiprotease, proinflammatory cytokine antagonist, cytokine release inhibitor, anti-inflammatory cytokine, anti-inflammatory agent, NF-κB inhibitor, proteasome inhibitor, hyaluronic acid, neutral lipids, polar lipids, fatty acids, estrogen, estrogen analogue, oestradiol, progesterone, follicle stimulating hormone, luteinizing hormone, sodium hyaluronate, and nitric oxide.
8. The method of claim 7 , wherein said androgen or androgen analogue is a 17α-methyl-17β-hydroxy-2-oxa-5α-androstan-3-one derivative, a testosterone derivative, 4,5α-dihydrotestosterone derivative, a 17β-hydroxy-5α-androstane derivative containing a ring A unsaturation, a 19-nortestosterone derivative, a nitrogen-substituted androgen, or a combination thereof.
9. The method of claim 7 , wherein said selective androgen receptor modulator is an aryl-propionamide compound, a bicyclic hydantoin analogue, a quinoline analogue, or a tetrahydroquinoline analogue.
10. The method of claim 7 , wherein said proinflammatory cytokine antagonist is an anti-TNFα antibody, a soluble TNF α receptor, or an IL-1 receptor antagonist.
11. The method of claim 7 , wherein said anti-inflammatory agent is cyclosporine A, omega 3 fatty acids, or omega 6 fatty acids.
12. The method of claim 7 , wherein the composition comprises sodium hyaluronate or hyaluronic acid in a concentration of 10-100,000 μg/mL.
13. The method of claim 7 , wherein the composition comprises sodium hyaluronate or hyaluronic acid in a concentration of 500-5,000 μg/mL.
14. A method of providing lubrication during intercourse or promoting conception comprising topically administering to a vaginal surface, a penile surface, or a combination thereof an effective amount of an isolated or purified lubricin or a lubricating fragment, multimer, or homolog thereof sufficient to improve vaginal boundary lubrication.
15. A method of treating decreased vaginal boundary lubrication or a disease or condition associated therewith or of improving vaginal boundary lubrication, the method comprising topically administering to a vaginal surface of a subject in need thereof a therapeutically effective amount of isolated or purified lubricin or a lubricating fragment, multimer, or homolog thereof sufficient to improve vaginal boundary lubrication and a therapeutic agent selected from the group consisting of an androgen, androgen analogue, selective androgen receptor modulator, selective estrogen receptor modulator, aromatase inhibitor, antiprotease, cytokine release inhibitor, NF-κB inhibitor, proteasome inhibitor, neutral lipids, polar lipids, fatty acids, estrogen, estrogen analogue, oestradiol, progesterone, follicle stimulating hormone, luteinizing hormone, and nitric oxide.