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Menghini S, Vizovisek M, Enders J, Schuerle S. Magnetospirillum magneticum triggers apoptotic pathways in human breast cancer cells. Cancer Metab 2023; 11:12. [PMID: 37559137 PMCID: PMC10410830 DOI: 10.1186/s40170-023-00313-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 07/24/2023] [Indexed: 08/11/2023] Open
Abstract
The use of bacteria in cancer immunotherapy has the potential to bypass many shortcomings of conventional treatments. The ability of anaerobic bacteria to preferentially accumulate and replicate in hypoxic regions of solid tumors, as a consequence of bacterial metabolic needs, is particularly advantageous and key to boosting their immunostimulatory therapeutic actions in situ. While several of these bacterial traits are well-studied, little is known about their competition for nutrients and its effect on cancer cells which could serve as another potent and innate antineoplastic action. Here, we explored the consequences of the iron-scavenging abilities of a particular species of bacteria, Magnetospirillum magneticum, which has been studied as a potential new class of bacteria for magnetically targeted bacterial cancer therapy. We investigated their influence in hypoxic regions of solid tumors by studying the consequential metabolic effects exerted on cancer cells. To do so, we established an in vitro co-culture system consisting of the bacterial strain AMB-1 incubated under hypoxic conditions with human breast cancer cells MDA-MB-231. We first quantified the number of viable cells after incubation with magnetotactic bacteria demonstrating a lower rate of cellular proliferation that correlated with increasing bacteria-to-cancer cells ratio. Further experiments showed increasing populations of apoptotic cells when cancer cells were incubated with AMB-1 over a period of 24 h. Analysis of the metabolic effects induced by bacteria suggest an increase in the activation of executioner caspases as well as changes in levels of apoptosis-related proteins. Finally, the level of several human apoptosis-related proteins was investigated, confirming a bacteria-dependent triggering of apoptotic pathways in breast cancer cells. Overall, our findings support that magnetotactic bacteria could act as self-replicating iron-chelating agents and indicate that they interfere with proliferation and lead to increased apoptosis of cancer cells. This bacterial feature could serve as an additional antineoplastic mechanism to reinforce current bacterial cancer therapies.
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Affiliation(s)
- Stefano Menghini
- Department of Health Sciences and Technology, Institute for Translational Medicine, ETH Zurich, CH-8092, Zurich, Switzerland
| | - Matej Vizovisek
- Department of Health Sciences and Technology, Institute for Translational Medicine, ETH Zurich, CH-8092, Zurich, Switzerland
| | - Jonathas Enders
- Department of Health Sciences and Technology, Institute for Translational Medicine, ETH Zurich, CH-8092, Zurich, Switzerland
| | - Simone Schuerle
- Department of Health Sciences and Technology, Institute for Translational Medicine, ETH Zurich, CH-8092, Zurich, Switzerland.
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2
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Janiszewski T, Kołt S, Ciastoń I, Vizovisek M, Poręba M, Turk B, Drąg M, Kozieł J, Kasperkiewicz P. Investigation of osteoclast cathepsin K activity in osteoclastogenesis and bone loss using a set of chemical reagents. Cell Chem Biol 2023; 30:159-174.e8. [PMID: 36696904 DOI: 10.1016/j.chembiol.2023.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 08/28/2022] [Accepted: 01/04/2023] [Indexed: 01/26/2023]
Abstract
Cathepsin K (CatK) is a lysosomal cysteine protease whose highest expression is found in osteoclasts, which are the cells responsible for bone resorption. Investigations of the functions and physiological relevance of CatK have often relied on antibody-related techniques, which makes studying its activity patterns a challenging task. Hence, we developed a set of chemical tools for the investigation of CatK activity. We show that our probe is a valuable tool for monitoring the proteolytic activation of CatK during osteoclast formation. Moreover, we demonstrate that our inhibitor of CatK impedes osteoclastogenesis and bone resorption and that CatK is stored in its active form in osteoclasts within their lysosomal compartment and mainly in the ruffled borders of osteoclasts. Given that our probe recognizes active CatK within living cells without exhibiting any observed cytotoxicity in the several models tested, we expect that it would be well suited to theranostic applications in CatK-related diseases.
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Affiliation(s)
- Tomasz Janiszewski
- Department of Chemical Biology and Bioimaging, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Sonia Kołt
- Department of Chemical Biology and Bioimaging, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Izabela Ciastoń
- Department of Microbiology, Faculty of Biochemistry, Biophysics, and Biotechnology, Jagiellonian University, ul. Gronostajowa 7, 30-387 Kraków, Poland
| | - Matej Vizovisek
- Department of Biochemistry and Molecular and Structural Biology, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Marcin Poręba
- Department of Chemical Biology and Bioimaging, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Boris Turk
- Department of Biochemistry and Molecular and Structural Biology, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia; Faculty of Chemistry and Chemical Technology, University of Ljubljana, Vecna pot 113, 1000 Ljubljana, Slovenia
| | - Marcin Drąg
- Department of Chemical Biology and Bioimaging, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland
| | - Joanna Kozieł
- Department of Microbiology, Faculty of Biochemistry, Biophysics, and Biotechnology, Jagiellonian University, ul. Gronostajowa 7, 30-387 Kraków, Poland
| | - Paulina Kasperkiewicz
- Department of Chemical Biology and Bioimaging, Wroclaw University of Science and Technology, Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland.
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Dubey D, Christiansen MG, Vizovisek M, Gebhardt S, Feike J, Schuerle S. Engineering Responsive Ultrasound Contrast Agents Through Crosslinked Networks on Lipid-Shelled Microbubbles. Small 2022; 18:e2107143. [PMID: 35064638 DOI: 10.1002/smll.202107143] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Ultrasound imaging with contrast agents, especially with lipid-shelled microbubbles, has become a vital tool in clinical diagnostics. Efforts to adapt these agents for molecular imaging have typically focused on targeted binding. More recently, crosslinking the lipid shell to alter its mechanical properties, followed by decrosslinking upon exposure to a stimulus, has been shown as a promising approach for imaging soluble molecular targets. Nevertheless, a systematic study of the influence of crosslinker concentration and structure on the mechanical properties of microbubbles has not been undertaken. An improved understanding of the role of these parameters is necessary to more effectively design contrast agents that detect proteases, an informative class of soluble disease markers. Here, the influence of crosslinker parameters on the acoustic properties of microbubbles, developing a model of crosslinker network formation on microbubble shells that explains the experimental observations, are studied. By incorporating cleavable elements that respond to UV light or proteolysis, kinetically resolved acoustic detection of these stimuli and the relevance of crosslinker design are demonstrated. The framework established in this study can be readily adapted to other protease-cleavable units and provides a basis for the future development of responsive ultrasound contrast agents for molecular imaging of proteolytic activity.
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Affiliation(s)
- Dragana Dubey
- Institute for Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Zurich, CH-8092, Switzerland
| | - Michael G Christiansen
- Institute for Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Zurich, CH-8092, Switzerland
| | - Matej Vizovisek
- Institute for Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Zurich, CH-8092, Switzerland
| | - Samuel Gebhardt
- Institute for Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Zurich, CH-8092, Switzerland
| | - Jasmin Feike
- Institute for Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Zurich, CH-8092, Switzerland
| | - Simone Schuerle
- Institute for Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Zurich, CH-8092, Switzerland
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Vizovisek M, Ristanovic D, Menghini S, Christiansen MG, Schuerle S. The Tumor Proteolytic Landscape: A Challenging Frontier in Cancer Diagnosis and Therapy. Int J Mol Sci 2021; 22:ijms22052514. [PMID: 33802262 PMCID: PMC7958950 DOI: 10.3390/ijms22052514] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 02/06/2023] Open
Abstract
In recent decades, dysregulation of proteases and atypical proteolysis have become increasingly recognized as important hallmarks of cancer, driving community-wide efforts to explore the proteolytic landscape of oncologic disease. With more than 100 proteases currently associated with different aspects of cancer development and progression, there is a clear impetus to harness their potential in the context of oncology. Advances in the protease field have yielded technologies enabling sensitive protease detection in various settings, paving the way towards diagnostic profiling of disease-related protease activity patterns. Methods including activity-based probes and substrates, antibodies, and various nanosystems that generate reporter signals, i.e., for PET or MRI, after interaction with the target protease have shown potential for clinical translation. Nevertheless, these technologies are costly, not easily multiplexed, and require advanced imaging technologies. While the current clinical applications of protease-responsive technologies in oncologic settings are still limited, emerging technologies and protease sensors are poised to enable comprehensive exploration of the tumor proteolytic landscape as a diagnostic and therapeutic frontier. This review aims to give an overview of the most relevant classes of proteases as indicators for tumor diagnosis, current approaches to detect and monitor their activity in vivo, and associated therapeutic applications.
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Fossati A, Frommelt F, Uliana F, Martelli C, Vizovisek M, Gillet L, Collins B, Gstaiger M, Aebersold R. System-Wide Profiling of Protein Complexes Via Size Exclusion Chromatography-Mass Spectrometry (SEC-MS). Methods Mol Biol 2021; 2259:269-294. [PMID: 33687722 DOI: 10.1007/978-1-0716-1178-4_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In living cells, most proteins are organized in stable or transient functional assemblies, protein complexes, which control a multitude of vital cellular processes such as cell cycle progression, metabolism, and signal transduction. Over several decades, specific protein complexes have been analyzed by structural biology methods, initially X-ray crystallography and more recently single particle cryoEM. In parallel, mass spectrometry (MS)-based methods including in vitro affinity-purification coupled to MS or in vivo protein proximity-dependent labeling methods have proven particularly effective to detect complexes, thus nominating new assemblies for structural analysis. Those approaches, however, are either of limited in throughput or require specifically engineered protein systems.In this chapter, we present protocols for a workflow that supports the parallel analysis of multiple complexes from the same biological sample with respect to abundance, subunit composition, and stoichiometry. It consists of the separation of native complexes by size-exclusion chromatography (SEC) and the subsequent mass spectrometric analysis of the proteins in consecutive SEC fractions. In particular, we describe (1) optimized conditions to achieve native protein complex separation by SEC, (2) the preparation of the SEC fractions for MS analysis, (3) the acquisition of the MS data at high throughput via SWATH/DIA (data-independent analysis) mass spectrometry and short chromatographic gradients, and (4) a set of bioinformatic tools for the targeted analysis of protein complexes. Altogether, the parallel measurement of a high number of complexes from a single biological sample results in unprecedented system-level insights into the remodeling of cellular protein complexes in response to perturbations of a broad range of cellular systems.
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Affiliation(s)
- Andrea Fossati
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zürich, Switzerland
| | - Fabian Frommelt
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zürich, Switzerland
| | - Federico Uliana
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zürich, Switzerland
| | - Claudia Martelli
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zürich, Switzerland
| | - Matej Vizovisek
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zürich, Switzerland
| | - Ludovic Gillet
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zürich, Switzerland
| | - Ben Collins
- School of Biological Sciences, Queen's University of Belfast, Belfast, UK
| | - Matthias Gstaiger
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zürich, Switzerland
| | - Ruedi Aebersold
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zürich, Switzerland.
- Faculty of Science, University of Zurich, Zurich, Switzerland.
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Poreba M, Groborz KM, Rut W, Pore M, Snipas SJ, Vizovisek M, Turk B, Kuhn P, Drag M, Salvesen GS. Multiplexed Probing of Proteolytic Enzymes Using Mass Cytometry-Compatible Activity-Based Probes. J Am Chem Soc 2020; 142:16704-16715. [PMID: 32870676 PMCID: PMC7595764 DOI: 10.1021/jacs.0c06762] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The subset of the proteome that contains enzymes in their catalytically active form can be interrogated by using probes targeted toward individual specific enzymes. A subset of such enzymes are proteases that are frequently studied with activity-based probes, small inhibitors equipped with a detectable tag, commonly a fluorophore. Due to the spectral overlap of these commonly used fluorophores, multiplex analysis becomes limited. To overcome this, we developed a series of protease-selective lanthanide-labeled probes compatible with mass cytometry giving us the ability to monitor the activity of multiple proteases in parallel. Using these probes, we were able to identify the distribution of four proteases with different active site geometries in three cell lines and peripheral blood mononuclear cells. This provides a framework for the use of mass cytometry for multiplexed enzyme activity detection.
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Affiliation(s)
- Marcin Poreba
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
- Wroclaw University of Science and Technology, Wroclaw, Poland
| | - Katarzyna M. Groborz
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
- Wroclaw University of Science and Technology, Wroclaw, Poland
| | - Wioletta Rut
- Wroclaw University of Science and Technology, Wroclaw, Poland
| | - Milind Pore
- University of Southern California, USC Michelson Center for Convergent Biosciences, Los Angeles, CA, USA
| | - Scott J. Snipas
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | | | - Boris Turk
- Jozef Stefan Institute, Ljubljana, Slovenia
| | - Peter Kuhn
- University of Southern California, USC Michelson Center for Convergent Biosciences, Los Angeles, CA, USA
| | - Marcin Drag
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
- Wroclaw University of Science and Technology, Wroclaw, Poland
| | - Guy S. Salvesen
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
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Loboda J, Sosnowski P, Tusar L, Vidmar R, Vizovisek M, Horvat J, Kosec G, Impens F, Demol H, Turk B, Gevaert K, Turk D. Structural insight in peptidyl substrate binding to cysteine cathepsins. Acta Crystallogr A Found Adv 2019. [DOI: 10.1107/s2053273319094269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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8
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Poreba M, Groborz K, Vizovisek M, Maruggi M, Turk D, Turk B, Powis G, Drag M, Salvesen GS. Fluorescent probes towards selective cathepsin B detection and visualization in cancer cells and patient samples. Chem Sci 2019; 10:8461-8477. [PMID: 31803426 PMCID: PMC6839509 DOI: 10.1039/c9sc00997c] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 07/29/2019] [Indexed: 12/23/2022] Open
Abstract
Highly selective fluorescent activity-based probe for the visualization of cathepsin B in cancer cells.
Human cysteine cathepsins constitute an 11-membered family of proteases responsible for degradation of proteins in cellular endosomal–lysosomal compartments as such, they play important roles in antigen processing, cellular stress signaling, autophagy, and senescence. Moreover, for many years these enzymes were also linked to tumor growth, invasion, angiogenesis and metastasis when upregulated. Individual biological roles of each cathepsin are difficult to establish, because of their redundancy and similar substrate specificities. Selective chemical tools that enable imaging of individual cathepsin activities in living cells, tumors, and the tumor microenvironment may provide a better insight into their functions. In this work, we used HyCoSuL technology to profile the substrate specificity of human cathepsin B. The use of unnatural amino acids in the substrate library enabled us to uncover the broad cathepsin B preferences that we utilized to design highly-selective substrates and fluorescent activity-based probes (ABPs). We further demonstrated that Cy5-labeled MP-CB-2 probe can selectively label cathepsin B in eighteen cancer cell lines tested, making this ABP highly suitable for other biological setups. Moreover, using Cy5-labelled MP-CB-2 we were able to demonstrate by fluorescence microscopy that in cancer cells cathepsins B and L share overlapping, but not identical subcellular localization.
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Affiliation(s)
- Marcin Poreba
- Sanford Burnham Prebys Medical Discovery Institute , 10901 North Torrey Pines Road , La Jolla , CA 92037 , USA . ; ; .,Department of Bioorganic Chemistry , Faculty of Chemistry , Wroclaw University of Technology , Wyb. Wyspianskiego 27 , 50-370 Wroclaw , Poland
| | - Katarzyna Groborz
- Department of Bioorganic Chemistry , Faculty of Chemistry , Wroclaw University of Technology , Wyb. Wyspianskiego 27 , 50-370 Wroclaw , Poland
| | - Matej Vizovisek
- Department of Biochemistry and Molecular and Structural Biology , Jožef Stefan Institute , SI-1000 Ljubljana , Slovenia
| | - Marco Maruggi
- Sanford Burnham Prebys Medical Discovery Institute , 10901 North Torrey Pines Road , La Jolla , CA 92037 , USA . ; ;
| | - Dusan Turk
- Department of Biochemistry and Molecular and Structural Biology , Jožef Stefan Institute , SI-1000 Ljubljana , Slovenia
| | - Boris Turk
- Department of Biochemistry and Molecular and Structural Biology , Jožef Stefan Institute , SI-1000 Ljubljana , Slovenia.,Faculty of Chemistry and Chemical Technology , University of Ljubljana , SI-1000 Ljubljana , Slovenia
| | - Garth Powis
- Sanford Burnham Prebys Medical Discovery Institute , 10901 North Torrey Pines Road , La Jolla , CA 92037 , USA . ; ;
| | - Marcin Drag
- Sanford Burnham Prebys Medical Discovery Institute , 10901 North Torrey Pines Road , La Jolla , CA 92037 , USA . ; ; .,Department of Bioorganic Chemistry , Faculty of Chemistry , Wroclaw University of Technology , Wyb. Wyspianskiego 27 , 50-370 Wroclaw , Poland
| | - Guy S Salvesen
- Sanford Burnham Prebys Medical Discovery Institute , 10901 North Torrey Pines Road , La Jolla , CA 92037 , USA . ; ;
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Poreba M, Rut W, Vizovisek M, Groborz K, Kasperkiewicz P, Finlay D, Vuori K, Turk D, Turk B, Salvesen GS, Drag M. Selective imaging of cathepsin L in breast cancer by fluorescent activity-based probes. Chem Sci 2018; 9:2113-2129. [PMID: 29719685 PMCID: PMC5896380 DOI: 10.1039/c7sc04303a] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/15/2018] [Indexed: 11/21/2022] Open
Abstract
Highly-selective fluorogenic substrate and activity-based probe for monitoring cathepsin L activity in the breast cancer cell line MDA-MB-231.
Cysteine cathepsins normally function in the lysosomal degradation system where they are critical for the maintenance of cellular homeostasis and the MHC II immune response, and have been found to have major roles in several diseases and in tumor progression. Selective visualization of individual protease activity within a complex proteome is of major importance to establish their roles in both normal and tumor cells, thereby facilitating our understanding of the regulation of proteolytic networks. A generally accepted means to monitor protease activity is the use of small molecule substrates and activity-based probes. However, there are eleven human cysteine cathepsins, with a few of them displaying overlapping substrate specificity, making the development of small molecules that selectively target a single cathepsin very challenging. Here, we utilized HyCoSuL, a positional scanning substrate approach, to develop a highly-selective fluorogenic substrate and activity-based probe for monitoring cathepsin L activity in the breast cancer cell line MDA-MB-231. Use of this probe enabled us to distinguish the activity of cathepsin L from that of other cathepsins, particularly cathepsin B, which is abundant and ubiquitously expressed in normal and transformed cell types. We found that cathepsin L localization in MDA-MB-231 cells greatly overlaps with that of cathepsin B, however, several cathepsin L-rich lysosomes lacked cathepsin B activity. Overall, these studies demonstrate that HyCoSuL-derived small molecule probes are valuable tools to image cathepsin L activity in living cells. This approach thus enables evaluation of cathepsin L function in tumorigenesis and is applicable to other cysteine cathepsins.
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Affiliation(s)
- Marcin Poreba
- Department of Bioorganic Chemistry , Faculty of Chemistry , Wroclaw University of Technology , Wyb. Wyspianskiego 27 , 50-370 Wroclaw , Poland . ; .,Sanford Burnham Prebys Medical Discovery Institute , 10901 North Torrey Pines Road , La Jolla , CA 92037 , USA
| | - Wioletta Rut
- Department of Bioorganic Chemistry , Faculty of Chemistry , Wroclaw University of Technology , Wyb. Wyspianskiego 27 , 50-370 Wroclaw , Poland . ;
| | - Matej Vizovisek
- Department of Biochemistry and Molecular and Structural Biology , Jožef Stefan Institute , SI-1000 Ljubljana , Slovenia
| | - Katarzyna Groborz
- Department of Bioorganic Chemistry , Faculty of Chemistry , Wroclaw University of Technology , Wyb. Wyspianskiego 27 , 50-370 Wroclaw , Poland . ;
| | - Paulina Kasperkiewicz
- Department of Bioorganic Chemistry , Faculty of Chemistry , Wroclaw University of Technology , Wyb. Wyspianskiego 27 , 50-370 Wroclaw , Poland . ; .,Sanford Burnham Prebys Medical Discovery Institute , 10901 North Torrey Pines Road , La Jolla , CA 92037 , USA
| | - Darren Finlay
- Sanford Burnham Prebys Medical Discovery Institute , 10901 North Torrey Pines Road , La Jolla , CA 92037 , USA
| | - Kristiina Vuori
- Sanford Burnham Prebys Medical Discovery Institute , 10901 North Torrey Pines Road , La Jolla , CA 92037 , USA
| | - Dusan Turk
- Department of Biochemistry and Molecular and Structural Biology , Jožef Stefan Institute , SI-1000 Ljubljana , Slovenia
| | - Boris Turk
- Department of Biochemistry and Molecular and Structural Biology , Jožef Stefan Institute , SI-1000 Ljubljana , Slovenia
| | - Guy S Salvesen
- Sanford Burnham Prebys Medical Discovery Institute , 10901 North Torrey Pines Road , La Jolla , CA 92037 , USA
| | - Marcin Drag
- Department of Bioorganic Chemistry , Faculty of Chemistry , Wroclaw University of Technology , Wyb. Wyspianskiego 27 , 50-370 Wroclaw , Poland . ;
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Mikhaylov G, Klimpel D, Schaschke N, Mikac U, Vizovisek M, Fonovic M, Turk V, Turk B, Vasiljeva O. Inside Back Cover: Selective Targeting of Tumor and Stromal Cells By a Nanocarrier System Displaying Lipidated Cathepsin B Inhibitor (Angew. Chem. Int. Ed. 38/2014). Angew Chem Int Ed Engl 2014. [DOI: 10.1002/anie.201406845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Mikhaylov G, Klimpel D, Schaschke N, Mikac U, Vizovisek M, Fonovic M, Turk V, Turk B, Vasiljeva O. Innenrücktitelbild: Selective Targeting of Tumor and Stromal Cells By a Nanocarrier System Displaying Lipidated Cathepsin B Inhibitor (Angew. Chem. 38/2014). Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Mikhaylov G, Klimpel D, Schaschke N, Mikac U, Vizovisek M, Fonovic M, Turk V, Turk B, Vasiljeva O. Selective targeting of tumor and stromal cells by a nanocarrier system displaying lipidated cathepsin B inhibitor. Angew Chem Int Ed Engl 2014; 53:10077-81. [PMID: 24975267 PMCID: PMC4499245 DOI: 10.1002/anie.201402305] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Indexed: 01/27/2023]
Abstract
Cathepsin B (CtsB) is a lysosomal cysteine proteinase that is specifically translocated to the extracellular milieu during cancer progression. The development of a lipidated CtsB inhibitor incorporated into the envelope of a liposomal nanocarrier (LNC-NS-629) is described. Ex vivo and in vivo studies confirmed selective targeting and internalization of LNC-NS-629 by tumor and stromal cells, thus validating CtsB targeting as a highly promising approach to cancer diagnosis and treatment.
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Affiliation(s)
- G Mikhaylov
- Department of Biochemistry and Molecular and Structural Biology, Jozef Stefan Institute, 1000 Ljubljana (Slovenia); National Research Tomsk Polytechnic University, 634050 Tomsk (Russia); Jozef Stefan International Postgraduate School, 1000 Ljubljana (Slovenia)
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Hu HY, Vats D, Vizovisek M, Kramer L, Germanier C, Wendt KU, Rudin M, Turk B, Plettenburg O, Schultz C. In vivo imaging of mouse tumors by a lipidated cathepsin S substrate. Angew Chem Int Ed Engl 2014; 53:7669-73. [PMID: 24888522 PMCID: PMC4298799 DOI: 10.1002/anie.201310979] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 02/24/2014] [Indexed: 12/22/2022]
Abstract
The synthesis and evaluation of two cathepsin S-specific probes is described. For long-term retention of the probe at the target site and a high signal-to-noise ratio, we introduced a lipidation approach via the simple attachment of palmitoic acid to the reporter. After cathepsin S-specific cleavage in cultured cells and in a grafted tumor mouse model, fluorescence increased owing to dequenching and we observed an intracellular accumulation of the fluorescence in the target tissue. The lipidated probe provided a prolonged and strongly fluorescent signal in tumors when compared to the very similar non-lipidated probe, demonstrating that non-invasive tumor identification is feasable. The homing principle by probe lipidation might also work for selective administration of cytotoxic compounds to specifically reduce tumor mass.
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Affiliation(s)
- Hai-Yu Hu
- Cell Biology & Biophysics Unit, European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg (Germany); Sanofi Deutschland GmbH, Diabetes Division, R&D, Industriepark Park Höchst, 65926 Frankfurt (Germany)
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Hu HY, Vats D, Vizovisek M, Kramer L, Germanier C, Wendt KU, Rudin M, Turk B, Plettenburg O, Schultz C. Visualisierung von Maustumoren mit einem lipidierten Cathepsin-S-Substrat. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310979] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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