When veterinarians evaluate regenerative options for their canine patients, understanding what is inside the product matters. AlphaFlo® is a liquid, cryopreserved, acellular canine amniotic tissue allograft used to supplement and protect canine tissues. Amniotic tissue is a naturally rich source of biologically active factors, including several with reported anti-inflammatory properties.
This post takes a closer look at three of those factors and what the published literature says about their roles in tissue biology.
A2M — Alpha-2-Macroglobulin
A2M is a broad-spectrum protease inhibitor naturally found in amniotic tissue. Proteases are enzymes involved in breaking down proteins, and in certain tissue environments, elevated protease activity has been associated with tissue degradation. A2M is reported in the scientific literature to inhibit a broad range of proteases, which has made it a subject of interest in regenerative medicine research.1
AlphaFlo® contains A2M as a naturally occurring component of canine amniotic tissue. The manufacturing process is designed to preserve the native tissue and retain its naturally occurring proteins, including A2M.
IL-1ra — Interleukin-1 Receptor Antagonist
IL-1ra is a protein that competitively binds to the interleukin-1 receptor without activating it. Interleukin-1 is a pro-inflammatory cytokine involved in the inflammatory signaling cascade, and IL-1ra is reported in the literature to block that signaling pathway by occupying the receptor site.1
(Amniotic tissue is a natural source of IL-1ra. As a component of AlphaFlo®, it is present as part of the naturally occurring biological profile of canine amniotic tissue. The manufacturing process is designed to preserve the native tissue and retain its naturally occurring proteins, including IL-1ra.)
IL-10 — Interleukin-10
IL-10 is an anti-inflammatory cytokine that plays a key role in modulating the immune system. It is reported in the scientific literature to inhibit the production of pro-inflammatory cytokines and modulate the activity of immune cells involved in the inflammatory process.1
Like A2M and IL-1ra, IL-10 is a naturally occurring component of amniotic tissue and is present in AlphaFlo®.
AlphaFlo® does not claim specific clinical outcomes. The biological factors described in this post are naturally occurring components of canine amniotic tissue and are present in AlphaFlo® as part of its native biological composition. Clinical decisions regarding the use of AlphaFlo® are made at the discretion of the attending veterinarian.
See how veterinarians across the country are incorporating AlphaFlo® into their care plans: https://alphaflocanine.com/category/case-study/
Key Takeaway
AlphaFlo® is a liquid, cryopreserved, acellular canine amniotic tissue allograft that contains naturally occurring anti-inflammatory factors, including A2M, IL-1RA, and IL-10.
These factors are preserved through the manufacturing process, which is designed to maintain the biological characteristics of the native amniotic tissue.
A2M is a broad-spectrum protease inhibitor, IL-1RA blocks the interleukin-1 receptor signaling pathway, and IL-10 is involved in regulating immune response and modulating pro-inflammatory cytokine production.
Together, these factors contribute to the anti-inflammatory biological profile that makes amniotic tissue allografts a subject of ongoing interest in regenerative veterinary medicine.
Anti-Inflammatory Factors in AlphaFlo®
| Factor | Full Name | Primary Function | Why It Matters |
| A2M | Alpha-2-Macroglobulin | Binds and regulates inflammatory enzymes and cytokines | Helps maintain a balanced inflammatory environment. |
| IL-1RA | Interleukin-1 Receptor Antagonist | Blocks IL-1 activity by competing for receptor binding | Supports the body’s natural regulation of inflammatory signaling. |
| IL-10 | Interleukin-10 | Anti-inflammatory cytokine | Helps modulate immune responses and supports tissue homeostasis. |
References
- Avilla-Royo E, et al. Comprehensive quantitative characterization of the human term amnion proteome. Matrix Biol Plus. 2021;12:100084.