ArticleFrontiers in cell and developmental biology2025
Establishment of RpHluorin2-expressing cell and its application in monitoring JTC-801-induced alkaliptosis via multi-dimensional fluorescence detection approaches.
Article in Frontiers in cell and developmental biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Article
- Advances in protein dot blot: principles, technical specifics, applications, and future perspectives.Frontiers in molecular biosciences · 2026Review
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6 authors.
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Abstract
Dysregulation of intracellular pH (pHi) is a hallmark biological feature of cancer cells, which hijack pHi homeostasis to sustain malignant phenotypes including uncontrolled proliferation, invasion, and metabolic reprogramming. Meanwhile, alkaliptosis, a newly defined pH-dependent form of regulated cell death specifically triggered by the small-molecule compound JTC-801, has emerged as a promising therapeutic target for cancer intervention. However, reliable tools for monitoring dynamic pHi changes during alkaliptosis remain insufficient. RpHluorin2 is an optimized ratiometric pH-sensitive green fluorescent protein variant with enhanced fluorescence intensity and stability. Herein, we established a stable RpHluorin2-expressing cell line and further developed a multi-dimensional fluorescence detection workflow, which encompasses a microplate reader, fluorescence microscopy, flow cytometry, a small animal imaging system (IVIS Spectrum), and a protein dot blot assay coupled with IVIS. Our results demonstrated a strong linear correlation between RpHluorin2 fluorescence intensity and cell number, with a coefficient of determination (
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