Methods of increasing mesenchymal stromal cell biosynthesis of specialized pro-resolving mediators and methods of use

Patent metadata

Field	Value
Publication number	US-2026061008-A1
Application number	US-202319105614-A
Country	US
Kind code	A1
Filing date	Aug 24, 2023
Priority date	Aug 24, 2022
Publication date	Mar 5, 2026
Grant date	—

Abstract

Methods of stimulating production of specialized pro-resolving mediators (SPMs) by mesenchymal stem cells (MSCs) are provided. The methods include contacting MSCs with one or more SPM fatty acid precursors, SPM intermediates, or a combination of two or more thereof. Also provided are compositions including the stimulated MSCs or conditioned media from the stimulated MSCs. Methods of treating or inhibiting inflammation are also provided, including administering to a subject stimulated MSCs or conditioned media from stimulated MSCs.

First claim

1 . A method of stimulating or increasing production of one or more specialized pro-resolving mediators (SPMs) by mesenchymal stromal cells (MSCs), comprising contacting a population of MSCs with one or more SPM fatty acid precursors or SPM intermediates, or a combination of two or more thereof,
thereby stimulating or increasing production of SPMs.

2 . The method of claim 1 , wherein:
the one or more SPM fatty acid precursors is selected from the group consisting of docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), arachidonic acid (AA), and docosapentaenoic acid (DPA); or the one or more SPM intermediates is selected from the group consisting of 17(S)-hyrdoxy-docosahexaenoic acid, 17(S)-hydroxy-hydroperoxide docosahexaenoic acid (HpDHA), 4(S)-hydroperoxy-17(S) hydroxy-docosahexaenoic acid, 4(S)-5(S)-epoxy-17(S)-hydroxy-docosahexaenoic acid, 7(S),8(S)-epoxy-17(S)-hydroxy-docosahexaenoic acid, 15(S)-hydroxy-docosahexaenoic acid, 5(S)-Hydroperoxy-15(S)-hydroxyeicosapentanoic acid, 18(R)-hydroperoxy-eicosapentaenoic acid, 5(S)-hydroperoxy-18(R)-hydroxyeicosapentanoic acid, 5(S),6(S)-epoxy-18(R)-hydroxyeicosapentanoic acid, 15(S)-Hydroperoxy eicosapentanoic acid, 5(S),15(S)-Di-Hydroperoxide eicosatetraenoic acid, 5(S),6(S)-epoxy-15(S) Di-Hydroperoxide eicosatetraenoic acid, and 13(R)-Hydroperoxy docosapentaenoic acid (HpDPA).

3 - 4 . (canceled)

5 . The method of claim 1 , wherein the SPMs are selected from one or more resolvins, lipoxins, protectins, maresins, or a combination of two or more thereof.

6 . The method of claim 5 , wherein:
the one or more resolvins are selected from the group consisting of resolvin D1, resolvin D2, resolvin D3, resolvin D4, resolvin D5, resolvin D6, aspirin-triggered resolvin D1, resolvin E1, resolvin E2, resolvin E3, resolvin E4, resolvin T1, resolvin T2, resolvin T3, and resolvin T4; the one or more lipoxins are selected from the group consisting of lipoxin A 4 , lipoxin A 5 , lipoxin B 4 , and 15-epi-lipoxin A 4 ; the one or more protectins are selected from the group consisting of protectin (PDX), PCTR1, PCTR2, and PCTR3; or the one or more maresins are selected from the group consisting of maresin 1, maresin 2, MCTR1, MCTR2, and MCTR3.

7 - 12 . (canceled)

13 . The method of claim 1 , further comprising collecting conditioned media from the MSCs contacted with the one or more SPM fatty acid precursors, SPM intermediates, or a combination of two or more thereof.

14 . A composition comprising MSCs produced by the method of claim 1 and a pharmaceutically acceptable carrier.

15 . The composition of claim 14 , wherein the carrier comprises physiological saline, a balanced salt solution, a hydrogel, ceramic, polymer, sponge, or scaffold.

16 - 18 . (canceled)

19 . A method of treating or inhibiting inflammation in a subject, comprising administering to the subject:
the composition of claim 14 . thereby treating or inhibiting the inflammation in the subject.

20 . A method of treating or inhibiting inflammation in a subject, comprising administering to the subject:
mesenchymal stromal cells (MSCs) and one or more specialized pro-resolving molecule (SPM) fatty acid precursors or SPM intermediates, or a combination of two or more thereof, thereby treating or inhibiting the inflammation in the subject.

21 . The method of claim 20 , wherein the MSCs and the one or more specialized pro-resolving molecule (SPM) fatty acid precursors or SPM intermediates, or a combination of two or more thereof are administered to the subject simultaneously, substantially simultaneously, or sequentially.

22 . The method of claim 20 , wherein;
the one or more SPM fatty acid precursors is selected from the group consisting of docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), arachidonic acid (AA), and docosapentaenoic acid (DPA); or the one or more SPM intermediates is selected from the group consisting of 17(S)-hyrdoxy-docosahexaenoic acid, 17(S)-hydroxy-hydroperoxide docosahexaenoic acid (HpDHA), 4(S)-hydroperoxy-17(S) hydroxy-docosahexaenoic acid, 4(S)-5(S)-epoxy-17(S)-hydroxy-docosahexaenoic acid, 7(S),8(S)-epoxy-17(S)-hydroxy-docosahexaenoic acid, 15(S)-hydroxy-docosahexaenoic acid, 5(S)-Hydroperoxy-15(S)-hydroxyeicosapentanoic acid, 18(R)-hydroperoxy-eicosapentaenoic acid, 5(S)-hydroperoxy-18(R)-hydroxyeicosapentanoic acid, 5(S),6(S)-epoxy-18(R)-hydroxyeicosapentanoic acid, 15(S)-Hydroperoxy eicosapentanoic acid, 5(S),15(S)-Di-Hydroperoxide eicosatetraenoic acid, 5(S),6(S)-epoxy-15(S) Di-Hydroperoxide eicosatetraenoic acid, and 13(R)-Hydroperoxy docosapentaenoic acid (HpDPA). 23 - 24 . (canceled)

25 . The method of claim 20 , wherein the SPMs are selected from one or more resolvins, lipoxins, protectins, maresins, or a combination of two or more thereof.

26 . The method of claim 25 , wherein:
the one or more resolvins are selected from the group consisting of resolvin D1, resolvin D2, resolvin D3, resolvin D4, resolvin D5, resolvin D6, aspirin-triggered resolvin D1, resolvin E1, resolvin E2, resolvin E3, resolvin E4, resolvin T1, resolvin T2, resolvin T3, and resolvin T4; the one or more lipoxins are selected from the group consisting of lipoxin A 4 , lipoxin A 5 , lipoxin B 4 , and 15-epi-lipoxin A 4 ; the one or more protectins are selected from the group consisting of protectin (PDX), PCTR1, PCTR2, and PCTR3; or the one or more maresins are selected from the group consisting of maresin 1, maresin 2, MCTR1, MCTR2, and MCTR3.

27 - 30 . (canceled)

31 . The method of claim 20 , wherein the MSCs, the one or more specialized pro-resolving molecule (SPM) fatty acid precursors or SPM intermediates, or a combination of two or more thereof, or both are formulated in a pharmaceutically acceptable carrier.

32 . The method of claim 31 , wherein the carrier comprises physiological saline, a balanced salt solution, a hydrogel, ceramic, polymer, sponge, or scaffold.

33 . (canceled)

34 . The method of claim 32 , wherein the carrier is a hydrogel comprising polyethylene glycol or polyethylene glycol functionalized with one to four maleimide moieties.

35 - 36 . (canceled)

37 . A method of treating or inhibiting inflammation in a subject, comprising administering to the subject conditioned media from MSCs produced by the method of claim 13 , thereby treating or inhibiting the inflammation in the subject.

38 . The method of claim 12 , wherein the subject has inflammation from a musculoskeletal disorder or injury, or a dermal injury.

39 . (canceled)

40 . The method of claim 19 , wherein the MSCs are administered to the subject at or near the site of inflammation or injury.

41 . (canceled)

42 . The method of claim 19 , wherein the MSCs are autologous to the subject.

Assignees

• Univ Oregon
• Georgia Tech Res Inst

Inventors

• Willett Nick
• Delorimier Elaine
• Botchwey Edward
• Turner Thomas

Classifications

• C12P7/6427

  Polyunsaturated fatty acids [PUFA], i.e. having two or more double bonds in their backbone · CPC title

• A61K31/202

  having three or more double bonds, e.g. linolenic (eicosanoids, e.g. leukotrienes A61K31/557) · CPC title

• A61P19/02

  for joint disorders, e.g. arthritis, arthrosis · CPC title

• C12N2500/36

  Lipids · CPC title

• C12N2500/50

  Soluble polymers, e.g. polyethyleneglycol [PEG] · CPC title