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AB234622

Lysosomal Intracellular Activity Assay Kit

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(27 Publications)

Lysosomal Intracellular Activity Assay Kit (ab234622) provides a proprietary Lysosome-Specific Self-Quenched Substrate which has low background fluorescence, high signal to background ratio and is pH insensitive.
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Functional Studies - Lysosomal Intracellular Activity Assay Kit (AB234622)
  • FuncS

Supplier Data

Functional Studies - Lysosomal Intracellular Activity Assay Kit (AB234622)

Release of self-Quenched Substrate in U937 cells.

1x106 U937 cells were pretreated with vehicle or 1X Cytochalasin D for 1 hour. After pre-treatment, cells were incubated with Self-Quenched Substrate and the same concentration of Cytochalasin D for additional hour in medium supplemented with 0.5% FBS according to kit's protocol. Images of U937 cells obtained using fluorescence microscope. Top : positive control cells treated Self-quenched substrate only. Bottom : negative control cells treated with 1X Cytochalasin D. U937 cells showing the release of Self-quenched substrate in the endocytotic vesicle (punctured pattern).

Functional Studies - Lysosomal Intracellular Activity Assay Kit (AB234622)
  • FuncS

Supplier Data

Functional Studies - Lysosomal Intracellular Activity Assay Kit (AB234622)

Release of self-Quenched Substrate in U937 cells. 1x106 U937 cells were pretreated with or without 1X Cytochalasin D for 1 hr. After pretreatment, remove the medium, cells were incubated with Self-Quenced Substrate, and the same concentration of Cytochalasin D for another 1 hr in medium with 0.5% FBS according to kit's protocol. (A) Comparison of histograms from flow analysis showing the inhibition of De-Quenching of Substrate by Cytochalasin D in U937 cells (Black : negative control cells; Pink : in the presence of 1X Cytochalasin D; Green : without 1X Cytochalasin D).

Key facts

Detection method

Fluorescent

Sample types

Suspension cells, Adherent cells

Assay type

Cell-based

Assay Platform

Flow cytometer, Fluorescence microscope

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "Enzyme activity assay": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

Lysosomal Intracellular Activity Assay Kit (ab234622) provides a proprietary Lysosome-Specific Self-Quenched Substrate which has low background fluorescence, high signal to background ratio and is pH insensitive. The substrate, acting as endocytic cargo, can be taken up by cells and degraded within an endo-lysosomal vesicle. The fluorescent signal is recovered from the Self-Quenched Substrate. The fluorescence signal, generated by degradation, is proportional to the intracellular lysosomal activity and can be measured using a fluorescence microscopy and/or flow cytometry. The kit includes Cytochalasin D, a cell-permeable inhibitor of the lysosomal membrane V-ATPase proton pump, that serves as an anti-lysosomal experimental control. This easy-to-use, non-radioactive kit allows imaging and accurate measurement of de-quenching substrate in cultured cells.

This product is manufactured by BioVision, an Abcam company and was previously called K448 Lysosomal Intracellular Activity Assay Kit. K448-50 is the same size as the 50 test size of ab234622.

Lysosomes are membrane-bound organelles important for various cellular processes. They contain hydrolytic enzymes that are utilized in the metabolism of some biomolecules. The extracellular cargo (e.g. nutrients toxins) binds to the cell membrane and is subsequently transported into membrane-bound endosomes for further degradation by lysosomes while intracellular components are transported to lysosomes through autophagy. Lysosomal dysfunction is associated with many human conditions such as aging and neurodegenerative disease.

The Safety Datasheet for this product has been updated for certain countries. Please check the current version in the Support and downloads section.

What's included?

{ "values": { "50Test": { "sellingSize": "50 Test", "publicAssetCode":"ab234622-50Test", "assetComponentDetails": [ { "size":"1 x 1 Vial", "name":"Self-Quenched Substrate", "number":"AB234622-CMP03", "productcode":"" }, { "size":"1 x 1.8 mL", "name":"Buffer I", "number":"AB234622-CMP01", "productcode":"" }, { "size":"1 x 50 µL", "name":"100X Cytochalasin D", "number":"AB234622-CMP02", "productcode":"" } ] } } }

Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
-20°C
Storage information
-20°C

Product protocols

Target data

Publications (27)

Recent publications for all applications. Explore the full list and refine your search

Nature communications 16:5536 PubMed40593574

2025

Lysosome-mediated aggregation of galactose-deficient IgA1 with transferrin receptor 1 links to IgA nephropathy.

Applications

Unspecified application

Species

Unspecified reactive species

Meijun Si,Jingpeng Fu,Mengting Fang,Yunfei Lu,Junxuan Huang,Haojie Li,Peiyi Wang,Maofu Liao,Jian Zhu,Peiyao Li,Wenzhao Zhong,Zhifei Guo,Wei Yang,Zhiming Ye,Hongli Hu,Xueqing Yu

Journal of neuroinflammation 22:147 PubMed40457456

2025

Inflammation-induced lysosomal dysfunction in human iPSC-derived microglia is exacerbated by APOE 4/4 genotype.

Applications

Unspecified application

Species

Unspecified reactive species

Marianna Hellén,Isabelle Weert,Stephan A Müller,Noora Räsänen,Pinja Kettunen,Šárka Lehtonen,Michael Peitz,Klaus Fließbach,Mari Takalo,Marja Koskuvi,Stefan F Lichtenthaler,Ville Leinonen,Alfredo Ramirez,Olli Kärkkäinen,Mikko Hiltunen,Jari Koistinaho,Taisia Rõlova

Cellular & molecular immunology 22:512-526 PubMed40038549

2025

GPNMB disrupts SNARE complex assembly to maintain bacterial proliferation within macrophages.

Applications

Unspecified application

Species

Unspecified reactive species

Zhenzhen Yan,Jinghong Han,Zihao Mi,Zhenzhen Wang,Yixuan Fu,Chuan Wang,Ningning Dang,Hong Liu,Furen Zhang

Journal for immunotherapy of cancer 12: PubMed39433427

2024

Microenvironmental alkalization promotes the therapeutic effects of MSLN-CAR-T cells.

Applications

Unspecified application

Species

Unspecified reactive species

Min Wu,Ling Mao,Xuejia Zhai,Jie Liu,Junhan Wang,Langhong Li,Jiangjie Duan,Jun Wang,Shuang Lin,Jianjun Li,Shicang Yu

Autophagy 21:598-618 PubMed39394963

2024

A novel ER stress regulator ARL6IP5 induces reticulophagy to ameliorate the prion burden.

Applications

Unspecified application

Species

Unspecified reactive species

Kajal Kamble,Ujjwal Kumar,Harsh Aahra,Mohit Yadav,Sumnil Bhola,Sarika Gupta

Cell reports. Medicine 5:101570 PubMed38749422

2024

SARS-CoV-2 infection exacerbates the cellular pathology of Parkinson's disease in human dopaminergic neurons and a mouse model.

Applications

Unspecified application

Species

Unspecified reactive species

Bina Lee,Ha Nyeoung Choi,Young Hyun Che,Myungjun Ko,Hye Min Seong,Min Gi Jo,Seon-Hee Kim,Chieun Song,Subeen Yoon,Jiwoo Choi,Jeong Hee Kim,Minkyeong Kim,Min Young Lee,Sang Won Park,Hye Jung Kim,Seong Jae Kim,Do Sik Moon,Sun Lee,Jae-Hoon Park,Seung-Geun Yeo,Richard G Everson,Young Jin Kim,Kyung-Wook Hong,In-Soon Roh,Kwang-Soo Lyoo,Yong Jun Kim,Seung Pil Yun

Cell reports 43:114102 PubMed38636518

2024

LXR/CD38 activation drives cholesterol-induced macrophage senescence and neurodegeneration via NAD depletion.

Applications

Unspecified application

Species

Unspecified reactive species

Ryo Terao,Tae Jun Lee,Jason Colasanti,Charles W Pfeifer,Joseph B Lin,Andrea Santeford,Keitaro Hase,Shinobu Yamaguchi,Daniel Du,Brian S Sohn,Yo Sasaki,Mitsukuni Yoshida,Rajendra S Apte

Nature aging 3:585-599 PubMed37118549

2023

Aging disrupts MANF-mediated immune modulation during skeletal muscle regeneration.

Applications

Unspecified application

Species

Unspecified reactive species

Neuza S Sousa,Margarida F Brás,Inês B Antunes,Päivi Lindholm,Joana Neves,Pedro Sousa-Victor

Nature communications 14:2150 PubMed37076542

2023

Disrupting the α-synuclein-ESCRT interaction with a peptide inhibitor mitigates neurodegeneration in preclinical models of Parkinson's disease.

Applications

Unspecified application

Species

Unspecified reactive species

Satra Nim,Darren M O'Hara,Carles Corbi-Verge,Albert Perez-Riba,Kazuko Fujisawa,Minesh Kapadia,Hien Chau,Federica Albanese,Grishma Pawar,Mitchell L De Snoo,Sophie G Ngana,Jisun Kim,Omar M A El-Agnaf,Enrico Rennella,Lewis E Kay,Suneil K Kalia,Lorraine V Kalia,Philip M Kim

Toxicology and applied pharmacology 459:116327 PubMed36460058

2022

Metabolomics of VO nanoparticles and VO nanofibers in human airway epithelial BEAS-2B cells.

Applications

Unspecified application

Species

Unspecified reactive species

Xiaojia He,Zachery R Jarrell,Matthew Ryan Smith,ViLinh Thi Ly,Yongliang Liang,Michael Orr,Young-Mi Go,Dean P Jones
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