Let’s explore “Vitiligo and immune signaling”

ESR1 encodes estrogen receptor alpha, which helps cells respond to estrogen. Receptor signaling is different from the amount of estrogen measured in blood.

FOLR2 encodes folate receptor beta, a folate-binding protein expressed in particular cell types, including subsets of immune cells. It is distinct from the FOLR1 receptor and the SLC19A1 reduced folate carrier.

GDF5 encodes growth differentiation factor 5, a signaling protein involved in skeletal development, joint formation and cartilage biology. Its name does not mean a SNP measures the ability to build muscle.

HFE helps regulate iron absorption through signaling that influences hepcidin. The commonly discussed C282Y and H63D variants correspond to rs1800562 and rs1799945. Their implications depend on the combination present and clinical findings.

HLA-DQA2 is part of the HLA class II region involved in immune recognition. It should not be treated as interchangeable with HLA-DQA1 or as a measurement of how well the immune system fights infections.

IL21 encodes a cytokine involved in regulating lymphocytes, including B-cell responses. It sits within an immune network that connects T-cell help, antibody responses and inflammatory activity.

PTGS2, commonly called COX-2, encodes an enzyme involved in prostaglandin production. Prostaglandins participate in pain, fever and inflammatory signaling.

CCL2 encodes MCP-1, a chemokine that attracts monocytes toward sites of immune activity. Recruitment is a different task from the cytokines that activate those cells once they arrive.

CCL3 encodes MIP-1 alpha, a chemokine involved in attracting and activating immune cells. It is related to CCL4, or MIP-1 beta, but the two genes and proteins are distinct.

CCL4 encodes MIP-1 beta, a chemokine involved in attracting immune cells. It participates in a recruitment network that includes CCL2, CXCL8 and related chemokines.

CCL5, also called RANTES, is a chemokine that helps direct immune-cell movement. Chemokines tell cells where to go, which is different from measuring the total strength of an immune response.

CD40 encodes a receptor that participates in communication between immune cells, including T-cell help for B-cell responses. Its partner is CD40 ligand, encoded by CD40LG.