Revision 1

#52033Store at -20C

1 Kit

(9 x 20 microliters)

Cell Signaling Technology

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3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Product Includes Product # Quantity Mol. Wt Isotype/Source
ASCL1 (E5S4Q) XP® Rabbit mAb 10585 20 µl 30 kDa Rabbit IgG
NeuroD1 (D90G12) Rabbit mAb 7019 20 µl 49 kDa Rabbit IgG
YAP (D8H1X) XP® Rabbit mAb 14074 20 µl 65-78 kDa Rabbit IgG
POU2F3 (E5N2D) XP® Rabbit mAb 36135 20 µl 45-60 kDa Rabbit IgG
Thyroid Transcription Factor 1 (TTF-1) (D2E8) Rabbit mAb 12373 20 µl 39, 42 kDa Rabbit 
DLL3 (E3J5R) Rabbit mAb 71804 20 µl 65 kDa Rabbit IgG
NCAM1 (CD56) (E7X9M) XP® Rabbit mAb 99746 20 µl 120 to 220 kDa Rabbit IgG
Enolase-2 (E2H9X) XP® Rabbit mAb 24330 20 µl 47 kDa Rabbit IgG
CHGA (E8X7R) Rabbit mAb 85798 20 µl 80 kDa Rabbit IgG
Anti-rabbit IgG, HRP-linked Antibody 7074 100 µl Goat 

Please visit for individual component applications, species cross-reactivity, dilutions, protocols, and additional product information.


The Small Cell Lung Cancer Biomarker Antibody Sampler Kit provides a means of detecting common biomarkers studied in small cell lung cancer (SCLC). The kit includes enough antibodies to perform two western blot experiments with each primary antibody.


Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/mL BSA, 50% glycerol, and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibodies.


Lung cancer is the leading cause of cancer-related mortality worldwide (1). It is generally divided into two broad histological classifications: small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC). SCLC is particularly aggressive and has been further subdivided by biological heterogeneity. Subtypes of SCLC have recently been described based on expression distinct transcriptional regulators (2,3). These subtypes were labeled as SCLC-A expressing achaete-scute homolog 1 (ASCL1), SCLC-N expressing neurogenic differentiation factor 1 (NeuroD1), SCLC-Y expressing yes-associated protein 1 (YAP), and SCLC-P expressing POU class 2 homeobox 3 (POU2F3). ASCL1 and NeuroD1 drive a neuroendocrine phenotype through regulation of distinct genes. DLL3, an inhibitor of NOTCH signaling, is upregulated by ASCL1 (4). NCAM1 (neural cell adhesion molecule, CD56) is an adhesion glycoprotein that mediates neuronal attachment, neurite extension, and is a marker for the neuroendocrine phenotype (5). Thyroid transcription factor 1 (TTF-1), a member of the NKX homeobox transcription factor family, is expressed in malignant tumors of the thyroid and lung, and it is commonly used as a marker for both primary and malignant lung cancers (6-8). Enolase-2 is a glycolytic enzyme that is involved in the conversion of 2-phosphoglycerate to phosphoenolpyruvate (9). Research studies have shown elevated levels of neuro-specific enolase-2 in neuroblastoma and SCLC (10,11). Chromogranin A (CHGA) is a member of the chromogranin/secretogranin family of neuroendocrine secretory proteins. It is expressed in the secretory vesicles of neurons and endocrine cells (1,2). CHGA is also useful as a serological and immunohistological marker for the presence of neuroendocrine tumors from various tissue sources (12,13). POU2F3 and YAP drive non-neuroendocrine phenotypes. POU2F3 is normally selectively expressed in chemosensory tuft cells, and SCLC expressing POU2F3 resemble that cell type (14). YAP is widely recognized as a key mediator of the Hippo growth signaling pathway (15). Expression of these key biomarkers in SCLC are thought to help predict therapeutic treatment (16).

  1. Sung, H. et al. (2021) CA Cancer J Clin 71, 209-249.
  2. Baine, M.K. et al. (2020) J Thorac Oncol 15, 1823-1835.
  3. Rudin, C.M. et al. (2019) Nat Rev Cancer 19, 289-297.
  4. Borromeo, M.D. et al. (2016) Cell Rep 16, 1259-1272.
  5. Seidenfaden, R. et al. (2003) Mol Cell Biol 23, 5908-18.
  6. Whithaus, K. et al. (2012) Arch Pathol Lab Med 136, 155-62.
  7. Yoshida, A. et al. (2011) Lung Cancer 72, 309-15.
  8. Moldvay, J. et al. (2004) Pathol Oncol Res 10, 85-8.
  9. Van Obberghen, E. et al. (1988) J Neurosci Res 19, 450-6.
  10. Stern, P. et al. (2007) Tumour Biol 28, 84-92.
  11. O'Shea, P. et al. (1995) Ir J Med Sci 164, 31-6.
  12. Weisbrod, A.B. et al. (2013) Horm Cancer 4, 165-75.
  13. Annaratone, L. et al. (2014) Endocr Pathol 25, 219-28.
  14. Rudin, C.M. et al. (2019) Nat Rev Cancer 19, 289-297.
  15. Zhao, B. et al. (2010) Genes Dev 24, 862-74.
  16. Wang, W.Z. et al. (2022) Semin Cancer Biol 00095-5, doi: 10.1016/j.semcancer.2022.04.001.

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