About 30% of the world’s population suffers from hair loss. It has a substantial psychosocial impact on all aspects of a person’s life. The treatment modalities for hair loss or baldness have several limitations. For example, hair loss occurs due to multiple factors, and the medications can only target a few of them. Improvements from these medications disappear after discontinuing their use. Their prolonged intake can cause adverse effects. Additionally, most of the medications are applicable only to androgenic alopecia, which occurs in males. Therefore, a treatment modality that can treat all types of hair loss in both genders is required. Stem Cells for Hair Loss can offer an effective solution through their regenerative potential that drives regrowth.

Regenerative Medicine for Hair Regeneration

Stem cells are popular for their transformation into diverse cell types and self-replication abilities. They are gradually rising to become the next-generation treatment alternative for various disorders. Their potential has been primarily evaluated for conditions lacking a cure. Among the different stem cell types, the following have been employed for treating baldness.

Hair Follicle Stem Cells (HFSCs)

Stem cells also reside in hair follicles and contribute to the formation of new follicles. They transition into different states based on the follicle cycle. Any disturbance in the activation of hair follicle stem cells (HFSCs) results in prolonged telogen or resting phase of the cycle, which shortens the growth phase and subsequently causes miniaturization of hair strands. The process of extracting HFSCs is simple. It entails removing a few strands from the patient and isolating HFSCs. HFSCs are then expanded in the laboratory to generate sufficient quantities of cells for treatment. The reinfusion of these cells at different locations in the patient's scalp stimulates new follicle growth.

Mesenchymal Stem Cells (MSCs)

The easy availability and painless extraction of mesenchymal stem cells (MSCs) have enhanced their use in therapy. Their therapeutic properties have been beneficial in treating a broad spectrum of conditions. According to recent studies, MSCs can also develop a favorable microenvironment. They secrete a plethora of molecules- growth factors, cytokines, ATP, metabolites, etc. These cells also communicate with the microenvironment for tissue homeostasis. The growth factors of MSCs regulate follicle growth in the following manner:

• Vascular endothelial growth factor (VEGF) increases the blood vessels in the scalp, thus controlling follicle size and growth.
• Hepatocyte growth factor (HGF) controls the follicle growth cycle and elongation of strands.
• Insulin-like growth factor-1 (IGF1) governs the follicle cycle and follicle cell survival and proliferation.
• Platelet-derived growth factor (PDGF) induces the anagen phase of the follicular cycle and maintains it. 

MSCs also release anti-inflammatory cytokines that reduce inflammation and immune cell migration into the tissue, thereby improving the niche of follicles. Employing these strategies, MSCs can target the pathological mechanisms of hair loss and induce follicle regeneration.

Overcoming Limitations with Stem Cell Therapy for Hair Regrowth 

Stem cell treatment offers many advantages over other treatment options.

• Long-lasting Results: Unlike regular mediation intake, stem cell infusion occurs at monthly intervals, and improvements are sustainable for longer periods.
• Root-level Regeneration: Stem Cell Therapy for Hair Regrowth focuses on the mechanisms behind baldness rather than just preventing further follicle loss.
• Aesthetic Outcomes: The therapy also boosts regrowth by acting on the cellular level, which gives a natural appearance.
• Hair Quality: Hair Loss Treatment by Stem Cells results in longer and thicker strands.

Clinical Evidence

The potential of stem cells has prompted their evaluation in animal models and humans. A study on mice reported that HFSCs treatment led to the development of new follicles. In 2017, research demonstrated a 29% increase in scalp coverage of 11 patients suffering from androgenic alopecia. A 2023 study documented a significant increase in strand diameter, length, and pigmentation in 50 patients. A scientific investigation on mice showed that adipose tissue MSCs promoted follicle growth with complete regrowth in 70% of mice. All the studies reported the absence of adverse effects after stem cell treatment, thus hinting that stem cell therapy could become the standard treatment for baldness.

Conclusion

Loss of 100 hairs per day is normal. However, hair loss without replenishment causes hair thinning and baldness. The increasing prevalence of baldness and limitations of the present medications have propelled the search for better alternatives. With the rising applications of stem cell treatment in various disorders, it has also been applied to treating baldness. HFSCs and MSCs are frequently used as stem cells for the therapy. HFSCs participate in the follicle cycle and the formation of new follicles. MSCs develop a favorable environment for hair regrowth and activation of HFSCs. Research on animals and humans has yielded positive results on stem cell therapy for hair regeneration without any negative impact. These therapies are poised to be the future of hair loss treatment. Advancells, a reliable stem cell manufacturer, is bringing this future into the present by delivering high-quality MSCs and HFSCs for therapies.