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Ściuk A, Wątor K, Staroń I, Worsztynowicz P, Pokrywka K, Sliwiak J, Kilichowska M, Pietruszewska K, Mazurek Z, Skalniak A, Lewandowski K, Jaskolski M, Loch JI, Surmiak M. Substrate Affinity Is Not Crucial for Therapeutic L-Asparaginases: Antileukemic Activity of Novel Bacterial Enzymes. Molecules 2024; 29:2272. [PMID: 38792133 PMCID: PMC11124013 DOI: 10.3390/molecules29102272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
L-asparaginases are used in the treatment of acute lymphoblastic leukemia. The aim of this work was to compare the antiproliferative potential and proapoptotic properties of novel L-asparaginases from different structural classes, viz. EcAIII and KpAIII (class 2), as well as ReAIV and ReAV (class 3). The EcAII (class 1) enzyme served as a reference. The proapoptotic and antiproliferative effects were tested using four human leukemia cell models: MOLT-4, RAJI, THP-1, and HL-60. The antiproliferative assay with the MOLT-4 cell line indicated the inhibitory properties of all tested L-asparaginases. The results from the THP-1 cell models showed a similar antiproliferative effect in the presence of EcAII, EcAIII, and KpAIII. In the case of HL-60 cells, the inhibition of proliferation was observed in the presence of EcAII and KpAIII, whereas the proliferation of RAJI cells was inhibited only by EcAII. The results of the proapoptotic assays showed individual effects of the enzymes toward specific cell lines, suggesting a selective (time-dependent and dose-dependent) action of the tested L-asparaginases. We have, thus, demonstrated that novel L-asparaginases, with a lower substrate affinity than EcAII, also exhibit significant antileukemic properties in vitro, which makes them interesting new drug candidates for the treatment of hematological malignancies. For all enzymes, the kinetic parameters (Km and kcat) and thermal stability (Tm) were determined. Structural and catalytic properties of L-asparaginases from different classes are also summarized.
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Affiliation(s)
- Anna Ściuk
- Department of Crystal Chemistry and Crystal Physics, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland; (A.Ś.); (M.K.)
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Łojasiewicza 11, 30-348 Krakow, Poland
- II Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Skawińska 8, 31-066 Krakow, Poland
| | - Kinga Wątor
- Department of Crystal Chemistry and Crystal Physics, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland; (A.Ś.); (M.K.)
- II Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Skawińska 8, 31-066 Krakow, Poland
| | - Izabela Staroń
- Department of Crystal Chemistry and Crystal Physics, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland; (A.Ś.); (M.K.)
- II Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Skawińska 8, 31-066 Krakow, Poland
| | - Paulina Worsztynowicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland; (P.W.); (K.P.); (J.S.); (M.J.)
| | - Kinga Pokrywka
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland; (P.W.); (K.P.); (J.S.); (M.J.)
| | - Joanna Sliwiak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland; (P.W.); (K.P.); (J.S.); (M.J.)
| | - Marta Kilichowska
- Department of Crystal Chemistry and Crystal Physics, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland; (A.Ś.); (M.K.)
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Łojasiewicza 11, 30-348 Krakow, Poland
| | - Kamila Pietruszewska
- Center for the Development of Therapies for Civilization and Age-Related Diseases, Jagiellonian University Medical College, Skawińska 8, 31-066 Krakow, Poland; (K.P.); (Z.M.); (A.S.)
| | - Zofia Mazurek
- Center for the Development of Therapies for Civilization and Age-Related Diseases, Jagiellonian University Medical College, Skawińska 8, 31-066 Krakow, Poland; (K.P.); (Z.M.); (A.S.)
| | - Anna Skalniak
- Center for the Development of Therapies for Civilization and Age-Related Diseases, Jagiellonian University Medical College, Skawińska 8, 31-066 Krakow, Poland; (K.P.); (Z.M.); (A.S.)
| | - Krzysztof Lewandowski
- Department of Hematology and Bone Marrow Transplantation, Poznan University of Medical Sciences, Szamarzewskiego 84, 60-569 Poznan, Poland;
| | - Mariusz Jaskolski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland; (P.W.); (K.P.); (J.S.); (M.J.)
- Department of Crystallography, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, 61-614 Poznan, Poland
| | - Joanna I. Loch
- Department of Crystal Chemistry and Crystal Physics, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland; (A.Ś.); (M.K.)
| | - Marcin Surmiak
- II Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Skawińska 8, 31-066 Krakow, Poland
- Center for the Development of Therapies for Civilization and Age-Related Diseases, Jagiellonian University Medical College, Skawińska 8, 31-066 Krakow, Poland; (K.P.); (Z.M.); (A.S.)
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Lailaja VP, Hari V, Sumithra TG, Anusree VN, Suresh G, Sanil NK, Sharma S R K, Gopalakrishnan A. In vitro and in silico analysis unravelled clinically desirable attributes of Bacillus altitudinis L-asparaginase. J Appl Microbiol 2024; 135:lxae062. [PMID: 38467390 DOI: 10.1093/jambio/lxae062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/13/2024]
Abstract
AIMS To identify a marine L-asparaginase with clinically desirable attributes and characterize the shortlisted candidate through in silico tools. METHODS AND RESULTS Marine bacterial strains (number = 105) isolated from marine crabs were evaluated through a stepwise strategy incorporating the crucial attributes for therapeutic safety. The results demonstrated the potential of eight bacterial species for extracellular L-asparaginase production. However, only one isolate (Bacillus altitudinis CMFRI/Bal-2) showed clinically desirable attributes, viz. extracellular production, type-II nature, lack of concurrent L-glutaminase and urease activities, and presence of ansZ (functional gene for clinical type). The enzyme production was 22.55 ± 0.5 µM/mg protein/min within 24 h without optimization. The enzyme also showed good activity and stability in pH 7-8 and temperature 37°C, predicting the functioning inside the human body. The Michealis-Menten constant (Km) was 14.75 µM. Detailed in silico analysis based on functional gene authenticating the results of in vitro characterization and predicted the nonallergenic characteristic of the candidate. Docking results proved the higher affinity of the shortlisted candidate to L-asparagine than L-glutamine and urea. CONCLUSION Comprehensively, the study highlighted B. altitudinis type II asparaginase as a competent candidate for further research on clinically safe asparaginases.
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Affiliation(s)
- V P Lailaja
- Marine Biotechnology, Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute (CMFRI), Ernakulam Kochi 682018, Kerala, India
| | - Vishnu Hari
- Marine Biotechnology, Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute (CMFRI), Ernakulam Kochi 682018, Kerala, India
| | - T G Sumithra
- Marine Biotechnology, Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute (CMFRI), Ernakulam Kochi 682018, Kerala, India
| | - V N Anusree
- Marine Biotechnology, Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute (CMFRI), Ernakulam Kochi 682018, Kerala, India
| | - Gayathri Suresh
- Marine Biotechnology, Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute (CMFRI), Ernakulam Kochi 682018, Kerala, India
- Cochin University of Science and Technology, Kochi 682022, Kerala, India
| | - N K Sanil
- Marine Biotechnology, Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute (CMFRI), Ernakulam Kochi 682018, Kerala, India
| | - Krupesha Sharma S R
- Marine Biotechnology, Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute (CMFRI), Ernakulam Kochi 682018, Kerala, India
| | - A Gopalakrishnan
- Marine Biotechnology, Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute (CMFRI), Ernakulam Kochi 682018, Kerala, India
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Khabade S, Sirigiri DNR, Ram AB. l-Asparaginase from Solanum lycopersicum as a Nutraceutical for Acute Lymphoblastic Leukemia. ACS OMEGA 2024; 9:3616-3624. [PMID: 38284052 PMCID: PMC10809669 DOI: 10.1021/acsomega.3c07633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 11/25/2023] [Accepted: 12/27/2023] [Indexed: 01/30/2024]
Abstract
l-Asparaginase (E.C. 3.5.1.1) is an indispensable analeptic anticancer enzyme used as an amalgam with additional cancer medicines for the cure of acute lymphoblastic leukemia (ALL). The presence of lAparaginase in tomato was confirmed byWestern blotting and DNA sequencing. The l-Asparaginase gene from tomato has been deposited in the NCBI database with accession number: OR736141. Crude enzyme was extracted from the fruit pulp of Solanum lycopersicum, and the activity was determined by the Nesslerization method. Further, the crude extract was subjected to purification, and kinetic parameters were studied. The percentage yield was calculated to be 6.457, and the purification fold was 0.086. The enzyme showed maximum activity at optimum pH 7.0, optimum temperature 37 °C, and incubation time of 05 min. The Michaelis constant "Km" and maximum velocity "Vmax" values were determined by the Lineweaver-Burk plot, which showed a low Km value of 0.66 and Vmax of 3.846 IU. Cytotoxic studies were carried out for crude and purified l-asparaginase. Purified l-Asparaginase has exhibited anticancer activity against the ALL model system, K-562 cell line, comparable to that of the anticancer compound vinblastine. Hence, l-Asparaginase from the fruit extract of tomato could be used as a nutraceutical to support cancer treatment in acute lymphoblastic leukemia.
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Affiliation(s)
- Sarina
P. Khabade
- Department
of PG Studies in Biotechnology, Nrupathunga
University, Bangalore 560001, India
| | - Divijendra Natha Reddy Sirigiri
- Department
of Biotechnology, BMS College of Engineering, Bangalore, Affiliated to Visvesvaraya Technological University, Belagavi, Karnataka 560019, India
| | - Anshu Beulah Ram
- Department
of PG Studies in Biotechnology, Nrupathunga
University, Bangalore 560001, India
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