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acidic intracellular endosomes

" in MedChemExpress (MCE) Product Catalog:

By Targets:	Fluorescent Dye (1) Potassium Channel (1)
By Research Areas:	Cancer (1) Infection (1)

Inhibitors & Agonists

Screening Libraries

Fluorescent Dyes

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-D3347

DUPA-FITC	Fluorescent Dye	Cancer
DUPA-FITC is a fluorescent reagent targeting PSMA, which specifically binds to prostate cancer cells expressing PSMA without non-specific binding to normal blood cells. DUPA-FITC can label PSMA-expressing prostate cancer cells in whole blood, followed by internalization and trafficking to acidic intracellular endosomes, during which the fluorescence is quenched. When combined with flow cytometry and density gradient centrifugation enrichment, DUPA-FITC enables quantitative analysis of circulating tumor cells in peripheral blood samples from prostate cancer patients .

HY-182464

DABMA	Potassium Channel	Infection Others
DABMA is a TMEM175 channel activator with a human EC₅₀ of 17.9 μM. DABMA directly increases TMEM175 channel current via interaction with intracellular, transmembrane, or endosomal lumen-associated domains, and does not alter TMEM175 mRNA or protein levels. DABMA delays endolysosomal substrate degradation, modulates endolysosomal trafficking, increases acidic organelle accumulation, induces cholesterol accumulation and altered late endosome morphology. DABMA can be used for the research of coronavirus disease, Clostridium difficile infection, Pseudomonas aeruginosa infection, rabies, and influenza virus infection .

Cat. No.	Product Name

HY-L251

Ionizable Lipid Compound Library	94 compounds
Ionizable lipids are a class of specialized, functional lipid molecules with pH-sensitive charge characteristics. They are primarily divided into two major categories: ionizable cationic lipids and ionizable anionic lipids, though the term typically specifies ionizable cationic lipids within the biomedical field. Structurally, these lipids consist of an ionizable hydrophilic headgroup, a biodegradable linker, and hydrophobic tails. Their primary application is serving as the key delivery vehicle in lipid nanoparticles (LNPs) to encapsulate negatively charged nucleic acid macromolecules, such as mRNA vaccines, siRNA therapeutics, and CRISPR gene-editing components. In a physiological, neutral environment, they remain electrically neutral to minimize systemic toxicity and prolong circulation time. Upon entering the acidic microenvironment of cellular endosomes, however, they undergo protonation to become positively charged, thereby inducing membrane fusion and enabling the highly efficient intracellular release of the nucleic acid cargo. Consequently, they serve as the technological cornerstone for bringing nucleic acid therapies into clinical application. To accelerate the translational process of cutting-edge nucleic acid drugs, MCE has meticulously constructed an ionizable lipid compound library containing 94 high-performance molecules, aiming to provide researchers and pharmaceutical professionals with a high-throughput, multi-dimensional lipid screening platform.

Ionizable Lipid Compound Library

94 compounds

Ionizable lipids are a class of specialized, functional lipid molecules with pH-sensitive charge characteristics. They are primarily divided into two major categories: ionizable cationic lipids and ionizable anionic lipids, though the term typically specifies ionizable cationic lipids within the biomedical field. Structurally, these lipids consist of an ionizable hydrophilic headgroup, a biodegradable linker, and hydrophobic tails. Their primary application is serving as the key delivery vehicle in lipid nanoparticles (LNPs) to encapsulate negatively charged nucleic acid macromolecules, such as mRNA vaccines, siRNA therapeutics, and CRISPR gene-editing components. In a physiological, neutral environment, they remain electrically neutral to minimize systemic toxicity and prolong circulation time. Upon entering the acidic microenvironment of cellular endosomes, however, they undergo protonation to become positively charged, thereby inducing membrane fusion and enabling the highly efficient intracellular release of the nucleic acid cargo. Consequently, they serve as the technological cornerstone for bringing nucleic acid therapies into clinical application.

To accelerate the translational process of cutting-edge nucleic acid drugs, MCE has meticulously constructed an ionizable lipid compound library containing 94 high-performance molecules, aiming to provide researchers and pharmaceutical professionals with a high-throughput, multi-dimensional lipid screening platform.

Cat. No.	Product Name	Type

HY-D3347

DUPA-FITC	Fluorescent Dyes
DUPA-FITC is a fluorescent reagent targeting PSMA, which specifically binds to prostate cancer cells expressing PSMA without non-specific binding to normal blood cells. DUPA-FITC can label PSMA-expressing prostate cancer cells in whole blood, followed by internalization and trafficking to acidic intracellular endosomes, during which the fluorescence is quenched. When combined with flow cytometry and density gradient centrifugation enrichment, DUPA-FITC enables quantitative analysis of circulating tumor cells in peripheral blood samples from prostate cancer patients .

DUPA-FITC

Fluorescent Dyes

DUPA-FITC is a fluorescent reagent targeting PSMA, which specifically binds to prostate cancer cells expressing PSMA without non-specific binding to normal blood cells. DUPA-FITC can label PSMA-expressing prostate cancer cells in whole blood, followed by internalization and trafficking to acidic intracellular endosomes, during which the fluorescence is quenched. When combined with flow cytometry and density gradient centrifugation enrichment, DUPA-FITC enables quantitative analysis of circulating tumor cells in peripheral blood samples from prostate cancer patients .

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BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

MedchemExpress Validation 03

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred

MedchemExpress Validation 04

MedchemExpress Validation

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