Traditional Herbal Blend HT042 Restores Immune Function in Immunocompromised Mice

This study investigated whether HT042, a standardized herbal formulation approved in Korea for supporting childhood growth, could restore immune function in immunocompromised conditions. The blend contains three traditional East Asian medicinal herbs: Astragalus mongholicus, Eleutherococcus senticosus, and Phlomis umbrosa.

Researchers used cyclophosphamide-treated mice to model chemotherapy-induced immunosuppression, a common clinical scenario. Mice received HT042 for 10 days before cyclophosphamide injection, then were monitored for immune recovery markers including blood cell counts, natural killer cell activity, and T cell function.

HT042 demonstrated remarkable immune-restorative effects across multiple parameters. It significantly restored white blood cell, red blood cell, hemoglobin, and platelet counts that had been depleted by cyclophosphamide. Most notably, natural killer cell activity - measured by interferon-gamma secretion - recovered to 99.6% of normal levels, representing a complete restoration and two-fold increase over untreated immunosuppressed mice.

The herbal blend enhanced both innate and adaptive immunity. It increased expression of T cell markers (CD3, CD4, CD8) and activated multiple T helper cell subsets, including Th1, Th2, Th17, and regulatory T cells. In macrophages, HT042 boosted nitric oxide production and inflammatory cytokine expression, indicating enhanced pathogen-fighting capacity.

These findings suggest HT042 could support immune recovery in immunocompromised patients, particularly children whose immune systems are naturally less developed. The dual activation of both immune branches represents a comprehensive approach to immune restoration that goes beyond single-target interventions.