QC array
Is quality control in immunohistochemistry (IHC) unnecessary?
Absolutely not—it’s crucial!
In today’s pathology diagnostics, IHC plays a vital role in determining patients’ diagnoses and treatment plans. Therefore, maintaining accuracy in staining is critical, as it directly impacts each patient’s diagnosis. However, it is often challenging for many facilities and hospitals to include positive controls on every glass slide.
To address this need, we offer the QC Array, a positive control tissue array that supports approximately 100 antibodies commonly used in clinical practice.
This product is provided in the form of a paraffin block, allowing you to section the required number of slices as needed. Depending on the section thickness, and sectioning method, each block can yield approximately 500 to 900 sections.
Additionally, because the QC Array sections are small (around 5×5 mm), they can be placed directly on the same slide as the sample, reducing reagent waste.
This product was developed using the patented “Pile-Up Array” technology (Patent No. 6908258), created at Nagasaki University’s Department of Pathology Informatics.
QC Array is manufactured under a licensing agreement with Nagasaki University and is currently patent-pending.
Schematic diagram of the control

Actual staining example(CK14+P40: lung cancer)

Example of antibody reagent
It can be used as a positive control for the following antibody reagents. Reagents that are used relatively frequently in clinical practice are supported.
(Some less frequently used reagents are not supported.)
- AE1/AE3
- AMACR
- AR
- BCL1
- BCL-2
- BCL-6
- βーHCG
- β-catenin
- cadherin17
- Calretinin
- CA19-9
- calponin
- CD3
- CD4
- CD5
- CD7
- CD8
- CD10
- CD15
- CD20
- CD21
- CD23
- CD30
- CD56
- CD61
- CD68
- CD99
- CD133
- CD138
- CD163
- C-Kit
- CD1a
- CDK4
- CDX2
- ChromograninA
- CKCAM5.2
- claudin 1
- claudin 4
- CK13
- CK14
- CK17
- CK18
- CK19
- DOG1
- D2-40
- EMA
- GATA3
- GFAP
- Glt1
- GPC-3
- Hepar-1
- h-caldesmon
- HNF4a
- IDH-1
- IgG
- IgG4
- Inhibin
- Kappa
- Ki-67
- Lambda
- Langerin
- maspin
- MDM2
- MLH-1
- MPO
- MUC1
- MUC6
- Napsin
- NSE
- Olig2
- P16
- P40
- P53
- P63
- PAX5
- PAX8
- PD-1
- PD-L1
- PLAP
- PR
- PSA
- RCC
- S100
- SALL4
- SOX10
- STAT6
- Synaptophysin
- TTF-1
- βーHCG
- Vimentin
- WT-1