Table 2 MSC therapies for AAA models

From: Stem cell-based therapies for treatment of abdominal aortic aneurysm: development, application, and future potential

Disease model

Cell type

Delivery Method

Day(s) of MSC Delivery

Day(s) of Harvest

Output Measurement

Reference

Angiotensin II in ApoE mice

Murine BM-MSC

Multiple IV injections

Days 0, 7, 14, 21

Day 28

Decreased aortic diameter in infrarenal regions; elastin content of MSC group significantly higher than control, also suppressed inflammatory response and MMP activity

41

Elastase model in mice

Human umbilical cord-MSC

IV injection

Day 0

Day 14

MSC anti-HMGB1 treatment attenuated AAA formation IL-17 production and inflammatory infiltration

56

Collagenase and elastase model in pigs

Porcine BM-MSC

Direct injection into aortic wall

Day 1

Days 1, 3, 7

Expressed high levels of VEGF in MSC group

42

Elastase model in mice

Murine BM-MSC

IV injection

Days 1, 3, 5

Day 14

Both Male and Female MSC decreased aortic dilation TNF-α, IL-1β, and MCP-1 were only decreased with female MSC

105

Angiotensin II in ApoE mice

Murine BM-MSC

Cell sheets

Day 0

Day 28

MSCs decreased active MMP-2, preserved elastin content and AA development was site specifically inhibited

39

Angiotensin II in ApoE mice

Murine BM-MSC

IV injection

Day 28

Days 42, 56, 84

No significant difference at 8 weeks for aortic diameter. Pro and active mmp2/9 were significantly reduced in MSC groups at week 2, elastin in the media was preserved at all three timepoints. No statistical difference between IL-1β, TNF-α, TGF-β1

55

Guinea pig xenograft in rat

Rat BM-MSC

Direct injection to aneurysm

Day 14

Days 21, 42

MSCs decreased AAA expansion compared to culture medium infusion, decreased expression of MMP-9 and macrophage infiltration

43

Elastase-induced rat model

Human UC-MSCs

IV injection

Day 0

Day 14

The treated group demonstrated effectively decreased AAA expansion, with increased elastin preservation and contractile VSMC marker expression and decreased pro and active MMP2 and MMP9 expression and TNFα

58

Calcium chloride and elastase model in mice

Multilineage-differentiating stress-enduring cells isolated from human BM-MSCs

Multiple IV injections

Days 0 (3 days post aneurysm induction), 7, 14

Days 21, 56

At 8 weeks no difference between single injection vs multiple injections of muse cells; both significantly smaller diameters than the non-muse vehicle and MSC groups; multiple injection group had a higher ratio of elastin content than the non-muse vehicle and MSC groups; all groups had significantly lower F4/80+ cells than the vehicle

59

  1. AAA Abdominal Aortic Aneurysm, IV Intravenous, BM Bone Marrow, MSC Mesenchymal Stem Cell, WT Wild Type, ApoE Apolipoprotein E, IL Interleukin, TNF Tumor Necrosis Factor, TGF Transforming Growth Factor, MMP Matrix Metalloproteinases