Lab Tests

CD1a (Pan T Cell Marker)

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CD1a (Pan T Cell Marker), in Visit Clinic

Measures CD1a protein on tissue cells to identify Langerhans cells and help diagnose related conditions in Visit Clinic.

Centre Visit

₹

SAMPLE TYPE

Tissue

FASTING REQUIRED

GENDER

Male/Female

GET REPORTS IN

25 hours

TEST INCLUDED

20K+Customers

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4.5+Rating

ProvenAccuracy

What is a CD1a (Pan T Cell Marker) Test in Visit Clinic?

This test checks for the CD1a protein on cells in a tissue sample. CD1a is found on certain immune cells, including Langerhans cells in the skin and some thymic cells. It helps the immune system recognize lipid antigens. Doctors use CD1a staining to identify specific cell types in biopsies. It is important for diagnosing conditions such as Langerhans cell histiocytosis and some rare tumors. Pathologists often use CD1a together with other stains to confirm a diagnosis. The result helps guide treatment decisions and further testing. The test is done on biopsy tissue and interpreted by a specialist.

CD1a (Pan T Cell Marker) Test Preparation in Visit Clinic

No special preparation is required.

CD1a (Pan T Cell Marker) Test Parameters in Visit Clinic

The CD1a (Pan T Cell Marker) test evaluates various parameters. Here are the main parameters checked:

Single test

Why Take a CD1a (Pan T Cell Marker) Test in Visit Clinic?

CD1a (Pan T Cell Marker) is used in immunohistochemistry panels for skin, bone, or lymph node biopsies when abnormal lesions appear. Doctors may order it if a patient has persistent skin rashes, raised lumps, bone pain, or swollen lymph nodes. It helps diagnose Langerhans cell histiocytosis and certain immune cell tumors. Abnormal results usually reflect disease processes rather than lifestyle, and a family history of histiocytic disorders may prompt earlier testing.

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Frequently asked questions

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What is the marker for the pan T cell in Visit Clinic?

CD3 is the pan–T‑cell marker; it forms part of the T‑cell receptor complex and is expressed on all mature T lymphocytes. It’s routinely used in immunophenotyping and flow cytometry to identify and quantify T cells and evaluate T‑cell disorders. CD2 and CD5 are additional T‑lineage markers but are less specific than CD3.

What cells express CD1a in Visit Clinic?

CD1a is expressed primarily on Langerhans cells in the epidermis and on certain dendritic cells (especially myeloid and thymic dendritic cells). It’s also present on cortical thymocytes and on some monocyte-derived dendritic cell populations. CD1a is not typically found on B cells or mature peripheral blood T cells. It presents lipid antigens to T cells.

Is CD3 a pan-T cell marker in Visit Clinic?

Yes. CD3 is a core component of the T‑cell receptor complex and is widely used as a pan‑T‑cell marker because it is expressed on essentially all mature T lymphocytes. It identifies T cells in flow cytometry and immunohistochemistry. Exceptions: immature thymocytes may show cytoplasmic but not surface CD3, and some rare leukemias or aberrant T‑cell populations can lack CD3.

Which one of the following is a pan-T cell marker in Visit Clinic?

CD3 is the pan‑T cell marker. It is expressed on all mature T lymphocytes as part of the T‑cell receptor complex and is routinely used to identify and count total T cells. CD3 staining distinguishes T cells from B cells and other leukocytes; CD4 and CD8 identify T‑cell subsets, not the entire T‑cell population.

What are the CD markers for T cells in Visit Clinic?

T cells are defined by CD3, a pan–T‑cell marker. Subsets include CD4+ helper T cells and CD8+ cytotoxic T cells. Other common T‑cell markers are CD2, CD5, CD7 and costimulatory CD28. Regulatory T cells express CD25 and FOXP3 (intracellular). Memory/naïve markers include CD45RO and CD45RA; activation markers include CD69 and CD25.

What are CD3 and CD19 markers for in Visit Clinic?

CD3 is a protein complex on T lymphocytes that associates with the T‑cell receptor and transmits activation signals, used to identify and quantify T cells. CD19 is a B‑cell surface protein expressed through most stages of B‑cell development, used to detect and monitor B‑cell populations and guide therapies targeting B cells. Both markers are routinely measured by flow cytometry.

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