IHC marker - OCT-3&4 Test: Booking, Price, and Results
About IHC marker - OCT-3&4 Test: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | OCT4 IHC, Oct-3/4 Immunostain, POU5F1 IHC, Octamer-binding Transcription Factor 4 Marker |
| Sample Type | Formalin-fixed, paraffin-embedded (FFPE) tissue block from biopsy or surgical specimen |
| Fasting Required | No |
| Report Time | 3 Days |
| Recommended For | All genders and ages; primarily ordered when a germ cell tumour is suspected |
| Price | Starting at ₹1,920 |
What Is an IHC Marker - OCT-3&4 Test?
The IHC marker - OCT-3&4 test is a specialised laboratory test that detects the OCT4 protein in tissue samples using a technique called immunohistochemistry. OCT4 (also known as POU5F1) is a protein naturally found in stem cells and germ cells, and its presence in tumour tissue can help confirm a diagnosis of certain cancers. Doctors order this test when a germ cell tumour is suspected based on clinical findings or imaging studies. It is also referred to as OCT4 IHC or the Oct-3/4 Immunostain.
What Does an IHC Marker - OCT-3&4 Test Measure?
This test identifies whether the OCT-3/4 protein is present in a tissue sample and, if so, records the intensity and extent of staining. The findings guide a pathologist in classifying the tumour type.
The test assesses the following parameters:
| Component | What It Tells Us |
|---|---|
| OCT-3/4 Protein Expression | Detects whether the OCT-3/4 protein is present in the nuclei of tumour cells; only nuclear staining is considered a positive result |
| Staining Pattern and Intensity | Assesses the extent and strength of staining within the tumour, helping to distinguish between different tumour types |
| Pluripotency Marker Activity | Indicates whether tumour cells express a marker associated with pluripotent cells, a feature commonly seen in certain germ cell tumours |
| Nuclear Staining Distribution | Determines the proportion of tumour cells showing nuclear positivity, which contributes to diagnostic interpretation |
Why Is an IHC Marker - OCT-3&4 Test Done?
A doctor may request the IHC marker - OCT-3&4 test when a tissue biopsy raises the possibility of a germ cell tumour or when the origin of a tumour is unclear.
Common Symptoms That May Require This Test
- A palpable lump or mass in the testicle
- Testicular swelling or a sensation of heaviness
- Lower abdominal or pelvic pain
- Unexplained lower back pain
- An abdominal mass detected during examination or imaging
- Abnormal bleeding in cases involving ovarian tumours
- Precocious (early) puberty in younger patients
Conditions This Test Can Help Detect
This test is used to confirm or rule out several specific conditions:
- Seminoma and dysgerminoma (germ cell tumours of the testis and ovary)
- Embryonal carcinoma, a type of non-seminomatous germ cell tumour
- Germinoma, a germ cell tumour arising in the brain
- Intratubular germ cell neoplasia (ITGCN), a precancerous change in testicular tissue
- Metastatic tumours of uncertain origin, where germ cell involvement needs to be confirmed
How to Prepare and What to Expect
No special patient preparation is needed for the IHC marker - OCT-3&4 test procedure itself, as the test is performed on a tissue sample already collected by your doctor.
Do You Need to Fast?
No fasting is required for this test. Dietary intake has no bearing on the tissue analysis.
Practical Tips Before Your Test
- Bring your doctor's referral letter, which should clearly state the biopsy site and include a brief clinical history, as this is required for the test.
- Carry any existing histopathology reports and relevant imaging studies such as CT scans, MRI, or PET scans.
- Inform your doctor about all current medications, and mention any prior chemotherapy or radiation therapy, as these can affect tissue protein expression.
- Ensure you have a valid prescription before proceeding.
Step-by-Step Procedure
The IHC marker - OCT-3&4 test procedure involves several stages after your tissue sample has been collected:
- A doctor collects a tissue sample through a needle biopsy, incisional biopsy, or surgical removal. This step takes place in a hospital or clinical setting.
- The tissue is placed in a formalin solution to preserve its structure, then embedded in a paraffin wax block to create the FFPE tissue block.
- A precision instrument called a microtome cuts very thin slices from the paraffin block.
- These thin sections are mounted on glass slides and treated with specific antibodies that attach to the OCT-3/4 protein if it is present in the tissue.
- The slides are examined under a microscope by a pathologist, who records the presence, location, intensity, and distribution of any staining.
- The completed FFPE tissue block is transported at ambient temperature (18 to 28°C) to the laboratory, where the full report is prepared within 3 days.
Factors That Can Affect Accuracy
Several factors can influence the reliability of results:
- Prolonged exposure to formalin during fixation can reduce the detectability of specific proteins in the tissue
- Poorly preserved or heavily damaged (necrotic) tissue may produce inconsistent staining patterns
- Prior chemotherapy or radiation therapy can alter the expression of proteins in tumour cells
- Very small biopsy samples may not provide sufficient tissue for a thorough analysis
- Paraffin-embedded sections are best analysed within six weeks of embedding
Understanding Your IHC Marker - OCT-3&4 Test Results
Results from this test must be reviewed by a qualified pathologist or oncologist alongside clinical findings, imaging studies, and other immunohistochemical markers. The table below summarises how results are generally interpreted.
| Result | Interpretation |
|---|---|
| Positive (nuclear staining present) | OCT-3/4 protein detected; supports diagnosis of seminoma, dysgerminoma, germinoma, or embryonal carcinoma |
| Negative (no nuclear staining) | OCT-3/4 protein not detected; suggests a tumour type that does not express OCT4, such as a yolk sac tumour, teratoma, choriocarcinoma, or a non-germ cell tumour |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
- Paraganglion cells: Specialised nerve tissue cells can show cytoplasmic staining with OCT4 antibodies. This pattern differs from the nuclear staining seen in germ cell tumours and should not be mistaken for a positive result.
- Phaeochromocytomas: Tumours of the adrenal gland may display strong OCT4 staining in the cytoplasm rather than the nucleus. A pathologist will account for this distinction during interpretation.
- Prior therapies: Chemotherapy or radiation therapy administered before the biopsy can alter protein expression patterns within tumour cells. This may affect how the OCT4 staining appears under the microscope.
How to Maintain Healthy Levels
While this test is diagnostic rather than monitoring-focused, the following general wellness steps are worth noting:
- Perform regular testicular self-examinations to detect any new lumps or changes early.
- Seek prompt medical attention for any unexplained testicular swelling, pain, or a palpable mass.
- Discuss a personal history of undescended testicles (cryptorchidism) with your doctor, as this is a recognised risk factor for germ cell tumours.
Lupin Diagnostics IHC Marker - OCT-3&4 Test Price
The IHC marker - OCT-3&4 test cost at Lupin Diagnostics starts at ₹1,920. This test requires a visit to a Lupin Diagnostics centre; home collection is not available as the sample must be a FFPE tissue block collected in a clinical setting.
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 1920 |
| CHENNAI | 1920 |
| HYDERABAD | 1920 |
| KOLKATA | 1920 |
| NAVI MUMBAI | 1920 |
| PUNE | 1920 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred centre location.
- Visit the centre at your scheduled time for sample submission.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Frequently Asked Questions
This test helps pathologists identify specific types of germ cell tumours, including seminomas and embryonal carcinomas. It is ordered when a biopsy result needs further classification or when a tumour of uncertain origin may have a germ cell component. The result supports the oncologist's diagnosis and treatment planning.
No. The IHC marker - OCT-3&4 test is performed on a tissue sample collected through a biopsy or surgical procedure. No blood draw is required. The tissue is processed into a paraffin-embedded block before analysis.
A positive result means the OCT4 protein was detected in the nuclei of the tissue cells. This finding is highly specific for germ cell tumours such as seminoma, dysgerminoma, germinoma, and embryonal carcinoma. Your pathologist and oncologist will review this alongside other test findings before making a diagnosis.
No. OCT4 staining is positive for seminomas and embryonal carcinomas but does not appear in yolk sac tumours, teratomas, choriocarcinomas, or spermatocytic seminomas. Additionally, IHC markers are usually ordered alongside this test to build a complete picture.
At Lupin Diagnostics, the report is delivered within 3 days. The staining procedure itself may be completed sooner, but the full pathology report, including the pathologist's interpretation, takes additional time.
No dietary or physical preparation is needed. You should bring your doctor's referral with a detailed clinical history (required for the test), any previous histopathology reports, and relevant imaging results such as CT or MRI scans.
Yes. Chemotherapy or radiation therapy administered before the biopsy can alter protein expression patterns within tumour cells. This may affect how the OCT4 staining appears under the microscope. Always inform your doctor and the laboratory about any prior treatment so the pathologist can account for this during interpretation.
IHC marker - OCT-3&4 Test: Booking, Price, and Results
