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Stem Cell Therapy and Angiogenesis: Supporting Blood Vessel Health

Published 2026.09.18 8 min read

Hello, I am Dr. Hidenori Shimada of Grand Green Osaka Umekita Clinic in Osaka, Japan.

Vascular health is fundamental to our overall well-being. A robust network of blood vessels ensures that every tissue in our body receives the oxygen and nutrients it needs to function, repair, and thrive. However, factors like aging, injury, or chronic conditions can compromise blood flow, hindering the body’s natural recovery processes. In the field of regenerative medicine, there is growing interest in therapies that can support the body’s innate ability to repair and maintain its vascular system. One such area of research focuses on angiogenesis—the formation of new blood vessels—and the potential role of adipose-derived stem cell therapy in this process.

This article explores the scientific basis of how stem cells sourced from fat tissue may contribute to vascular health. We will look at the mechanism of angiogenesis and discuss how this approach is situated within the context of regenerative medicine in Japan, providing insights for those considering advanced treatment options.

Understanding Angiogenesis: The Body’s Method for Building Blood Vessels

Angiogenesis is a natural physiological process where new blood vessels form from pre-existing ones. It is a crucial part of growth, development, and wound healing. When a tissue is injured or lacks adequate blood supply (a condition known as ischemia), the body initiates a complex signaling cascade to create new vascular pathways. This re-establishes the flow of oxygen and nutrients, facilitating tissue repair and regeneration.

The process is tightly regulated by a balance of pro-angiogenic and anti-angiogenic factors. Growth factors, such as Vascular Endothelial Growth Factor (VEGF), play a pivotal role in stimulating the endothelial cells that line our blood vessels to proliferate and form new capillaries. When this process functions effectively, it supports recovery from injury and maintains tissue health. However, in some chronic conditions or with advancing age, the body’s angiogenic capacity can decline, leading to poor circulation and delayed healing.

The Role of Adipose-Derived Stem Cells (ADSCs) in Angiogenesis

Mesenchymal stem cells (MSCs) are multipotent adult stem cells that can differentiate into a variety of cell types. While initially found in bone marrow, it is now known that adipose (fat) tissue is an abundant and easily accessible source of MSCs, often referred to as ADSCs. These cells are at the forefront of regenerative medicine research for several reasons.

One of the key mechanisms through which ADSCs are thought to exert their therapeutic effects is not by directly replacing damaged cells, but through the secretion of a wide range of bioactive molecules—a phenomenon known as the paracrine effect. These molecules include growth factors, cytokines, and exosomes that communicate with surrounding cells and modulate the tissue environment.

In the context of vascular health, ADSCs have been reported to secrete several pro-angiogenic factors, most notably VEGF. By releasing these factors into tissues with poor blood supply, ADSCs may help stimulate the body’s own endothelial cells to initiate the formation of new blood vessels. This supportive action is a central focus of research, particularly for conditions associated with compromised circulation. Studies have explored how these secreted factors can promote angiogenesis, accelerate the proliferation of skin cells, and support tissue repair, highlighting the potential of ADSCs in regenerative applications.

Adipose Stem Cell Therapy in Japan: A Regulated Approach

In Japan, regenerative medicine, including stem cell therapies, is regulated under the Act on the Safety of Regenerative Medicine. This legal framework ensures that treatments are provided based on a plan submitted to and reviewed by the government, emphasizing safety and proper management. At Grand Green Osaka Umekita Clinic, our adipose-derived stem cell therapy is administered in compliance with this act.

The treatment involves collecting a small amount of the patient’s own fat tissue, isolating and culturing the stem cells in a specialized facility, and then administering them back to the body, typically through an intravenous (IV) infusion. When administered via IV, it is suggested that MSCs can travel through the bloodstream and may be attracted to sites of inflammation or tissue damage, an effect known as “homing.” This allows for a systemic, whole-body approach to supporting cellular repair and function.

It is important to understand that this therapy is provided as private medical care and is not covered by Japanese public health insurance. The suitability, potential outcomes, and risks must be carefully evaluated by a physician for each individual.

What to Consider Before Exploring Stem Cell Therapy

While the science of stem cells and angiogenesis is promising, adipose-derived stem cell therapy is not a guaranteed solution for every condition or individual. A thorough medical consultation is essential to determine if you are an appropriate candidate. During your consultation, a physician will review your medical history, current health status, and treatment goals.

Key points to discuss with your doctor include:

Eligibility: Based on your diagnosis and health, the physician will determine if this therapy is a suitable option for you.
The Process: Understand the steps involved, from fat collection to cell culturing and infusion.
Potential Risks and Side Effects: As with any medical procedure, there are potential risks and side effects that need to be fully understood.
Expected Timeline and Costs: This is a form of private medical care, so it is crucial to have a clear understanding of the treatment schedule, number of sessions, and associated costs.
Realistic Expectations: The goal of this therapy is to support the body’s natural repair mechanisms. It is not a cure, and outcomes can vary between individuals. It should not be seen as a replacement for standard medical treatments for diseases.

For more detailed information on the treatment process, potential risks, and fees at Grand Green Osaka Umekita Clinic, please see our dedicated page on Adipose-Derived Stem Cell Therapy.

Summary: A Potential Avenue for Supporting Vascular Health

Adipose-derived stem cell therapy represents an innovative approach in regenerative medicine, with research indicating its potential to support angiogenesis and vascular health through the secretion of growth factors. By encouraging the formation of new blood vessels, this therapy may help improve circulation in tissues that need it most, thereby supporting the body’s own repair processes.

This treatment offers a potential option for those looking to invest in their long-term health and address concerns related to aging and recovery. However, the decision to pursue any form of regenerative medicine should be made after careful consideration and a comprehensive discussion with a qualified physician. If you are in the Osaka area and wish to learn more, we welcome you to schedule a consultation at Grand Green Osaka Umekita Clinic to explore your options based on your individual health needs.

Process of Adipose Stem Cell Therapy

1ConsultationDiscuss goals and eligibility
2Collect Adipose TissueA small amount of fat is taken
3Isolate & Culture CellsStem cells are grown in a lab
4Administer via IV DripCells are returned to the body
5Support AngiogenesisCells help form new blood vessels

This is a conceptual diagram summarizing the process described in this article

Learn more about Adipose-Derived Stem Cell Therapy

References

Supervising Physician

Director, Medical Corporation Shimada Clinic
Head of Clinical Practice, Grand Green Osaka Umekita Clinic

Hidenori Shimada

Graduated from the University of Tokushima Faculty of Medicine in 2005. After his initial residency, he obtained U.S. medical certification (ECFMG) and trained as a sub-intern in general surgery at the University of Washington. After completing the doctoral program at Kyoto University Graduate School of Medicine and working as a researcher at the Center for iPS Cell Research and Application (CiRA), Kyoto University, he founded Shimada Clinic in 2013. At Grand Green Osaka Umekita Clinic (https://umekitaclinic.org), he is engaged in a wide range of care, from internal medicine and pediatrics to cell therapy and aesthetic medicine.

* The physician supervision of this article covers its academic content only and does not constitute a recommendation of any specific treatment or product.

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