CD34 Antibody (CL14579) - BSA Free

Novus Biologicals, part of Bio-Techne | Catalog # NBP3-26871

Novus Biologicals, part of Bio-Techne
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Key Product Details

Validated by

Orthogonal Validation

Species Reactivity

Human

Applications

Immunohistochemistry, Immunohistochemistry-Paraffin

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG1 Clone # CL14579

Format

BSA Free

Concentration

1 mg/ml

View all CD34 Antibodies »

Product Specifications

Immunogen

This antibody was developed using a recombinant protein derived from P28906, with the exact immunogen sequence remaining proprietary.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG1

Scientific Data Images for CD34 Antibody (CL14579) - BSA Free

CD34 Antibody (CL14579)

Immunohistochemistry-Paraffin: CD34 Antibody (CL14579) [NBP3-26871]

Staining of human kidney shows strong membranous positivity in endothelial cells.
CD34 Antibody (CL14579)

Immunohistochemistry-Paraffin: CD34 Antibody (CL14579) [NBP3-26871]

Staining of human pancreas shows moderate membranous positivity in endothelial cells.
CD34 Antibody (CL14579)

Immunohistochemistry-Paraffin: CD34 Antibody (CL14579) [NBP3-26871]

Staining of human liver shows no positivity in hepatocytes as expected.
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Applications for CD34 Antibody (CL14579) - BSA Free

Application
Recommended Usage

Immunohistochemistry

1:200 - 1:500

Immunohistochemistry-Paraffin

1:200 - 1:500
Application Notes
For IHC-Paraffin, HIER pH 6 retrieval is recommended.

Formulation, Preparation, and Storage

Purification

Protein A purified

Formulation

PBS, pH 7.2, 40% glycerol

Format

BSA Free

Preservative

0.02% Sodium Azide

Concentration

1 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.

Background: CD34

CD34, also known as Cluster of Differentiation 34, is a transmembrane phosphoglycoprotein that is primarily known for being a surface marker for hematopoietic stem cells (HSCs) and progenitor cells (1,2). The CD34 protein consists of a heavily glycosylated extracellular domain, a single-pass transmembrane helix, and a cytoplasmic tail with PDZ binding motifs (1,3). Human CD34 has two protein isoforms consisting of 385 amino acids (aa) for the canonical isoform and 328 aa for isoform 2 (3,4). The canonical CD34 isoform has calculated theoretical molecular weight of 40 kDa and an observed molecular weight of ~115 kDa (1,3,4). L-Selectin (CD62L) is the most common ligand for CD34, but it has also been shown to bind CrkL (1,3).

CD34 has commonly been used as a marker for the diagnosis and classification of various diseases and pathologies including leukemia and solitary fibrous tumor (SFT) (2,5). In terms of immunohistochemistry and histopathology, CD34 has been the most common marker for SFT and is expressed in ~79% of cases (5). In addition to its use as a cell marker, CD34-postive (CD34+) hematopoietic stem cells have been used therapeutically in patients following radiation or chemotherapy due to their regenerative potential (6). There are several clinical trials showing promising results for CD34+ cell therapy for cardiovascular diseases including heart failure, ischemia, dilated cardiomyopathy, acute myocardial infarction, and angina (6). Besides hematopoietic lineages, CD34 is also expressed in non-hematopoietic cells including mesenchymal stem cells, endothelial cells and progenitors, fibrocytes, muscle satellite cells, and some cancer stem cells (1,3). While the clinical and cell therapy applications of CD34 as a cell marker is well documented, the function of CD34 is less understood but has been implicated in many cellular processes such as adhesion, proliferation, signal transduction, differentiation, and progenitor phenotype maintenance (1,3).

References

1. Sidney, L. E., Branch, M. J., Dunphy, S. E., Dua, H. S., & Hopkinson, A. (2014). Concise review: evidence for CD34 as a common marker for diverse progenitors. Stem cells (Dayton, Ohio), 32(6), 1380-1389. https://doi.org/10.1002/stem.1661

2. Krause, D. S., Fackler, M. J., Civin, C. I., & May, W. S. (1996). CD34: structure, biology, and clinical utility. Blood, 87(1), 1-13

3. Kapoor, S., Shenoy, S. P., & Bose, B. (2020). CD34 cells in somatic, regenerative and cancer stem cells: Developmental biology, cell therapy, and omics big data perspective. Journal of cellular biochemistry, 121(5-6), 3058-3069. https://doi.org/10.1002/jcb.29571

4. Uniprot (P28906)

5. Davanzo, B., Emerson, R. E., Lisy, M., Koniaris, L. G., & Kays, J. K. (2018). Solitary fibrous tumor. Translational gastroenterology and hepatology, 3, 94. https://doi.org/10.21037/tgh.2018.11.02

6. Prasad, M., Corban, M. T., Henry, T. D., Dietz, A. B., Lerman, L. O., & Lerman, A. (2020). Promise of autologous CD34+ stem/progenitor cell therapy for treatment of cardiovascular disease. Cardiovascular research, 116(8), 1424-1433. https://doi.org/10.1093/cvr/cvaa027

Alternate Names

CD34, HPCA1

Gene Symbol

CD34

Additional CD34 Products

Product Documents for CD34 Antibody (CL14579) - BSA Free

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Product Specific Notices for CD34 Antibody (CL14579) - BSA Free

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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