Towards standardization of immune functional assays

Area of Science:

• Immunology
• Clinical Diagnostics
• Translational Medicine

Background:

• Immunotherapy advancements necessitate immune function evaluation for personalized treatment strategies.
• Immune functional assays (IFA) offer insights into immune status but lack standardized clinical implementation.
• Existing methods require validation for reproducibility and robustness in clinical settings.

Purpose of the Study:

• To independently validate a published immune functional assay (IFA) for characterizing host response.
• To assess the reproducibility and robustness of the IFA and its readout in a cohort of healthy volunteers.
• To determine the potential of standardized IFA for clinical application in immune-related disorders.

Main Methods:

• Independent validation of a previously published IFA method.
• Assessment of a 44-gene expression signature and interferon-gamma (IFNγ) protein secretion post-stimulation.
• Evaluation using an independent cohort of healthy volunteers (HV).

Main Results:

• A strong correlation in host response was observed between the validation cohort and the original study cohort.
• The IFA demonstrated reproducibility and robustness in characterizing immune responses.
• Standardized methods for immune function evaluation, like the validated IFA, are feasible for larger studies.

Conclusions:

• The validated IFA is a reliable tool for assessing immune function and host response.
• Standardized immune functional assays can be implemented in clinical settings to guide therapeutic decisions.
• This IFA holds potential for identifying innate and adaptive immune dysfunction in patients with immune-related disorders.