Consistent Kit, but Challenging to Analyze

July 20, 2026

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Company:

Cell Signaling Technology

Product Name:

Senescence beta-Galactosidase Staining Kit

Catalog Number:

9860

This kit was used to quantify SA-β-gal levels in proliferative and irradiated human brain microvascular endothelial cells (HBMECs), according to manufacturer's instructions. We also used in different vascular cells (HUAECs, bENd.3 cells).

Experimental Design and Results Summary

Application

Colorimetric staining of SA-B-Gal

Starting Material

Human Brain Microvascular Endothelial Cells (HBMEC)

Tips

While leaving the cells at 37°C in a dry incubator (No CO2), add parafilm to avoid evaporation.

Results Summary

SA-β-gal levels in proliferative and irradiated cells were assessed by colorimetric X-gal using the Senescence β-Galactosidase Activity Assay Kit. Cells were counterstained with DAPI (2 ng/μL) for nuclei detection. 10–15 random fields were captured at 5× magnification using Leica DM5500 light microscope. Images were quantified blindly by manual counting the number of SA-β-Gal positive cells normalized to the total number of nuclei.

DOI or PMID #

https://doi.org/10.1016/j.jconrel.2026.115174

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Summary

The Good

User-friendly, rapid, and highly consistent

The Bad

Challenging to analyze; the use of X-gal may be a limiting factor, requiring the purchase of a separate aliquot.

The Bottom Line

Successfully used to quantify SA-β-gal in multiple vascular cell types. Straightforward protocol with minimal optimization required. Produces reliable staining suitable for manual quantification

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