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Sengupta S, Biswas M, Gandhi KA, Gupta SK, Gera PB, Gota V, Sonawane A. Preclinical evaluation of engineered L-asparaginase variants to improve the treatment of Acute Lymphoblastic Leukemia. Transl Oncol 2024; 43:101909. [PMID: 38412663 PMCID: PMC10907863 DOI: 10.1016/j.tranon.2024.101909] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/13/2024] [Accepted: 02/06/2024] [Indexed: 02/29/2024] Open
Abstract
INTRODUCTION Escherichia coli l-asparaginase (EcA), an integral part of multi-agent chemotherapy protocols of acute lymphoblastic leukemia (ALL), is constrained by safety concerns and the development of anti-asparaginase antibodies. Novel variants with better pharmacological properties are desirable. METHODS Thousands of novel EcA variants were constructed using protein engineering approach. After preliminary screening, two mutants, KHY-17 and KHYW-17 were selected for further development. The variants were characterized for asparaginase activity, glutaminase activity, cytotoxicity and antigenicity in vitro. Immunogenicity, pharmacokinetics, safety and efficacy were tested in vivo. Binding of the variants to pre-existing antibodies in primary and relapsed ALL patients' samples was evaluated. RESULTS Both variants showed similar asparaginase activity but approximately 24-fold reduced glutaminase activity compared to wild-type EcA (WT). Cytotoxicity against Reh cells was significantly higher with the mutants, although not toxic to human PBMCs than WT. The mutants showed approximately 3-fold lower IgG and IgM production compared to WT. Pharmacokinetic study in BALB/c mice showed longer half-life of the mutants (KHY-17- 267.28±9.74; KHYW-17- 167.41±14.4) compared to WT (103.24±18). Single and repeat-doses showed no toxicity up to 2000 IU/kg and 1600 IU/kg respectively. Efficacy in ALL xenograft mouse model showed 80-90 % reduction of leukemic cells with mutants compared to 40 % with WT. Consequently, survival was 90 % in each mutant group compared to 10 % with WT. KHYW-17 showed over 2-fold lower binding to pre-existing anti-asparaginase antibodies from ALL patients treated with l-asparaginase. CONCLUSION EcA variants demonstrated better pharmacological properties compared to WT that makes them good candidates for further development.
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Affiliation(s)
- Soumika Sengupta
- School of Biotechnology, Campus-11, KIIT Deemed to be University, Bhubaneswar, 751024, Odisha, India
| | - Mainak Biswas
- School of Biotechnology, Campus-11, KIIT Deemed to be University, Bhubaneswar, 751024, Odisha, India
| | - Khushboo A Gandhi
- Department of Clinical Pharmacology, ACTREC, Tata Memorial Centre, Khargarh, Navi Mumbai, 410210, India; Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400094, India
| | - Saurabh Kumar Gupta
- Department of Clinical Pharmacology, ACTREC, Tata Memorial Centre, Khargarh, Navi Mumbai, 410210, India; Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400094, India
| | - Poonam B Gera
- Department of Pathology, ACTREC, Tata Memorial Centre, Khargarh, Navi Mumbai, 410210, India; Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400094, India
| | - Vikram Gota
- Department of Clinical Pharmacology, ACTREC, Tata Memorial Centre, Khargarh, Navi Mumbai, 410210, India; Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400094, India.
| | - Avinash Sonawane
- School of Biotechnology, Campus-11, KIIT Deemed to be University, Bhubaneswar, 751024, Odisha, India; Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore (IIT Indore), Khandwa Road, Simrol, Madhya Pradesh, 453552, India.
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Dobryakova NV, Dumina MV, Zhgun AA, Pokrovskaya MV, Aleksandrova SS, Zhdanov DD, Kudryashova EV. L-Asparaginase Conjugates from the Hyperthermophilic Archaea Thermococcus sibiricus with Improved Biocatalytic Properties. Int J Mol Sci 2024; 25:4174. [PMID: 38673759 DOI: 10.3390/ijms25084174] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
This study investigated the effect of polycationic and uncharged polymers (and oligomers) on the catalytic parameters and thermostability of L-asparaginase from Thermococcus sibiricus (TsA). This enzyme has potential applications in the food industry to decrease the formation of carcinogenic acrylamide during the processing of carbohydrate-containing products. Conjugation with the polyamines polyethylenimine and spermine (PEI and Spm) or polyethylene glycol (PEG) did not significantly affect the secondary structure of the enzyme. PEG contributes to the stabilization of the dimeric form of TsA, as shown by HPLC. Furthermore, neither polyamines nor PEG significantly affected the binding of the L-Asn substrate to TsA. The conjugates showed greater maximum activity at pH 7.5 and 85 °C, 10-50% more than for native TsA. The pH optima for both TsA-PEI and TsA-Spm conjugates were shifted to lower pH ranges from pH 10 (for the native enzyme) to pH 8.0. Additionally, the TsA-Spm conjugate exhibited the highest activity at pH 6.5-9.0 among all the samples. Furthermore, the temperature optimum for activity at pH 7.5 shifted from 90-95 °C to 80-85 °C for the conjugates. The thermal inactivation mechanism of TsA-PEG appeared to change, and no aggregation was observed in contrast to that of the native enzyme. This was visually confirmed and supported by the analysis of the CD spectra, which remained almost unchanged after heating the conjugate solution. These results suggest that TsA-PEG may be a more stable form of TsA, making it a potentially more suitable option for industrial use.
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Affiliation(s)
- Natalia V Dobryakova
- Group of Fungal Genetic Engineering, Federal Research Center "Fundamentals of Biotechnology of the Russian Academy of Sciences", 117312 Moscow, Russia
- Chemical Faculty, Lomonosov Moscow State University, Leninskie Gory St. 1, 119991 Moscow, Russia
| | - Maria V Dumina
- Group of Fungal Genetic Engineering, Federal Research Center "Fundamentals of Biotechnology of the Russian Academy of Sciences", 117312 Moscow, Russia
| | - Alexander A Zhgun
- Group of Fungal Genetic Engineering, Federal Research Center "Fundamentals of Biotechnology of the Russian Academy of Sciences", 117312 Moscow, Russia
| | - Marina V Pokrovskaya
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, 119121 Moscow, Russia
| | - Svetlana S Aleksandrova
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, 119121 Moscow, Russia
| | - Dmitry D Zhdanov
- Group of Fungal Genetic Engineering, Federal Research Center "Fundamentals of Biotechnology of the Russian Academy of Sciences", 117312 Moscow, Russia
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, 119121 Moscow, Russia
| | - Elena V Kudryashova
- Group of Fungal Genetic Engineering, Federal Research Center "Fundamentals of Biotechnology of the Russian Academy of Sciences", 117312 Moscow, Russia
- Chemical Faculty, Lomonosov Moscow State University, Leninskie Gory St. 1, 119991 Moscow, Russia
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3
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Huang X, Li Y, Zhang J, Yan L, Zhao H, Ding L, Bhatara S, Yang X, Yoshimura S, Yang W, Karol SE, Inaba H, Mullighan C, Litzow M, Zhu X, Zhang Y, Stock W, Jain N, Jabbour E, Kornblau SM, Konopleva M, Pui CH, Paietta E, Evans W, Yu J, Yang JJ. Single-cell systems pharmacology identifies development-driven drug response and combination therapy in B cell acute lymphoblastic leukemia. Cancer Cell 2024; 42:552-567.e6. [PMID: 38593781 PMCID: PMC11008188 DOI: 10.1016/j.ccell.2024.03.003] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 02/19/2024] [Accepted: 03/11/2024] [Indexed: 04/11/2024]
Abstract
Leukemia can arise at various stages of the hematopoietic differentiation hierarchy, but the impact of developmental arrest on drug sensitivity is unclear. Applying network-based analyses to single-cell transcriptomes of human B cells, we define genome-wide signaling circuitry for each B cell differentiation stage. Using this reference, we comprehensively map the developmental states of B cell acute lymphoblastic leukemia (B-ALL), revealing its strong correlation with sensitivity to asparaginase, a commonly used chemotherapeutic agent. Single-cell multi-omics analyses of primary B-ALL blasts reveal marked intra-leukemia heterogeneity in asparaginase response: resistance is linked to pre-pro-B-like cells, with sensitivity associated with the pro-B-like population. By targeting BCL2, a driver within the pre-pro-B-like cell signaling network, we find that venetoclax significantly potentiates asparaginase efficacy in vitro and in vivo. These findings demonstrate a single-cell systems pharmacology framework to predict effective combination therapies based on intra-leukemia heterogeneity in developmental state, with potentially broad applications beyond B-ALL.
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Affiliation(s)
- Xin Huang
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, Anhui 230601, China
| | - Yizhen Li
- Division of Pharmaceutical Sciences, Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Department of Hematology, Children's Hospital of Soochow University, Suzhou, Jiangsu 215003, China
| | - Jingliao Zhang
- Department of Pediatrics Blood Diseases Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Lei Yan
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Huanbin Zhao
- Division of Pharmaceutical Sciences, Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Liang Ding
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Sheetal Bhatara
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Xu Yang
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Satoshi Yoshimura
- Division of Pharmaceutical Sciences, Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Wenjian Yang
- Division of Pharmaceutical Sciences, Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Seth E Karol
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Hiroto Inaba
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Charles Mullighan
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Hematological Malignancies Program, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Mark Litzow
- Division of Hematology, Mayo Clinic, Rochester, MN 55905, USA
| | - Xiaofan Zhu
- Department of Pediatrics Blood Diseases Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Yingchi Zhang
- Department of Pediatrics Blood Diseases Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Wendy Stock
- Department of Medicine Section of Hematology-Oncology, University of Chicago, Chicago, IL 60637, USA
| | - Nitin Jain
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Elias Jabbour
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Steven M Kornblau
- Department of Leukemia, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Marina Konopleva
- Department of Oncology and Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ching-Hon Pui
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Hematological Malignancies Program, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Elisabeth Paietta
- Cancer Center, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - William Evans
- Division of Pharmaceutical Sciences, Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Jiyang Yu
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
| | - Jun J Yang
- Division of Pharmaceutical Sciences, Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Hematological Malignancies Program, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.
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Ebrahimi V, Hashemi A. Optimizing recombinant production of L-asparaginase 1 from Saccharomyces cerevisiae using response surface methodology. Folia Microbiol (Praha) 2024:10.1007/s12223-024-01163-2. [PMID: 38581537 DOI: 10.1007/s12223-024-01163-2] [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: 10/12/2023] [Accepted: 03/27/2024] [Indexed: 04/08/2024]
Abstract
L-asparaginase is an essential enzyme used in cancer treatment, but its production faces challenges like low yield, high cost, and immunogenicity. Recombinant production is a promising method to overcome these limitations. In this study, response surface methodology (RSM) was used to optimize the production of L-asparaginase 1 from Saccharomyces cerevisiae in Escherichia coli K-12 BW25113. The Box-Behnken design (BBD) was utilized for the RSM modeling, and a total of 29 experiments were conducted. These experiments aimed to examine the impact of different factors, including the concentration of isopropyl-b-LD-thiogalactopyranoside (IPTG), the cell density prior to induction, the duration of induction, and the temperature, on the expression level of L-asparaginase 1. The results revealed that while the post-induction temperature, cell density at induction time, and post-induction time all had a significant influence on the response, the post-induction time exhibited the greatest effect. The optimized conditions (induction at cell density 0.8 with 0.7 mM IPTG for 4 h at 30 °C) resulted in a significant amount of L-asparaginase with a titer of 93.52 μg/mL, which was consistent with the model-based prediction. The study concluded that RSM optimization effectively increased the production of L-asparaginase 1 in E. coli, which could have the potential for large-scale fermentation. Further research can explore using other host cells, optimizing the fermentation process, and examining the effect of other variables to increase production.
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Affiliation(s)
- Vida Ebrahimi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, No. 2660, Valiasr-Niayesh Junction, Vali-e-Asr Ave, Tehran 1991953381, Iran
| | - Atieh Hashemi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, No. 2660, Valiasr-Niayesh Junction, Vali-e-Asr Ave, Tehran 1991953381, Iran.
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Pokrywka K, Grzechowiak M, Sliwiak J, Worsztynowicz P, Loch JI, Ruszkowski M, Gilski M, Jaskolski M. Probing the active site of Class 3 L-asparaginase by mutagenesis. I. Tinkering with the zinc coordination site of ReAV. Front Chem 2024; 12:1381032. [PMID: 38638878 PMCID: PMC11024299 DOI: 10.3389/fchem.2024.1381032] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 03/14/2024] [Indexed: 04/20/2024] Open
Abstract
ReAV, the inducible Class-3 L-asparaginase from the nitrogen-fixing symbiotic bacterium Rhizobium etli, is an interesting candidate for optimizing its enzymatic potential for antileukemic applications. Since it has no structural similarity to known enzymes with this activity, it may offer completely new ways of approach. Also, as an unrelated protein, it would evade the immunological response elicited by other asparaginases. The crystal structure of ReAV revealed a uniquely assembled protein homodimer with a highly specific C135/K138/C189 zinc binding site in each subunit. It was also shown before that the Zn2+ cation at low and optimal concentration boosts the ReAV activity and improves substrate specificity, which indicates its role in substrate recognition. However, the detailed catalytic mechanism of ReAV is still unknown. In this work, we have applied site-directed mutagenesis coupled with enzymatic assays and X-ray structural analysis to elucidate the role of the residues in the zinc coordination sphere in catalysis. Almost all of the seven ReAV muteins created in this campaign lost the ability to hydrolyze L-asparagine, confirming our predictions about the significance of the selected residues in substrate hydrolysis. We were able to crystallize five of the ReAV mutants and solve their crystal structures, revealing some intriguing changes in the active site area as a result of the mutations. With alanine substitutions of Cys135 or Cys189, the zinc coordination site fell apart and the mutants were unable to bind the Zn2+ cation. Moreover, the absence of Lys138 induced atomic shifts and conformational changes of the neighboring residues from two active-site Ser-Lys tandems. Ser48 from one of the tandems, which is hypothesized to be the catalytic nucleophile, usually changes its hydration pattern in response to the mutations. Taken together, the results provide many useful clues about the catalytic mechanism of the enzyme, allowing one to cautiously postulate a possible enzymatic scenario.
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Affiliation(s)
- Kinga Pokrywka
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
| | - Marta Grzechowiak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
| | - Joanna Sliwiak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
| | | | - Joanna I. Loch
- Department of Crystal Chemistry and Crystal Physics, Faculty of Chemistry, Jagiellonian University, Cracow, Poland
| | - Milosz Ruszkowski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
| | - Miroslaw Gilski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
- Department of Crystallography, Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland
| | - Mariusz Jaskolski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznan, Poland
- Department of Crystallography, Faculty of Chemistry, Adam Mickiewicz University, Poznan, Poland
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Naqvi SMA, Islam SN, Kumar A, Patil CR, Kumar A, Ahmad A. Enhanced anti-cancer potency of sustainably synthesized anisotropic silver nanoparticles as compared with L-asparaginase. Int J Biol Macromol 2024; 263:130238. [PMID: 38367787 DOI: 10.1016/j.ijbiomac.2024.130238] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/01/2024] [Accepted: 02/14/2024] [Indexed: 02/19/2024]
Abstract
Acute lymphoblastic leukemia (ALL), a hematologic cancer that involves the production of abnormal lymphoid precursor cells, primarily affects children aged 2 to 10 years. The bacterial enzyme L-asparaginase produced from Escherichia coli is utilised as first-line therapy, despite the fact that 30 % of patients have a treatment-limiting hypersensitivity reaction. The current study elucidates the biosynthesis of extremely stable, water-dispersible, anisotropic silver nanoparticles (ANI Ag NPs) at room temperature and investigation of its anti-tumor potency in comparison to L-asparaginase. The optical, morphological, compositional, and structural properties of synthesized nanoparticles were evaluated using UV-Vis-NIR spectroscopy, Transmission Electron Microscopy (TEM), Fourier Transform Infrared Spectroscopy, and X-ray Diffractometer. The UV-Vis-NIR spectra revealed the typical Surface Plasmon Resonance (SPR) at 423 nm along with additional NIR absorption at 962 nm and 1153 nm, while TEM images show different shapes and sizes of Ag nanoparticles ranging from 6.81 nm to 46 nm, together confirming their anisotropic nature. Further, the MTT assay demonstrated promising anticancer effects of ANI Ag NPs with an IC50 value of ∼7 μg/mL against HuT-78 cells. These sustainable anisotropic silver nanoparticles exhibited approximately four times better cytotoxic ability (at and above 10 μg/mL concentrations) than L-asparaginase against HuT-78 cells (a human T lymphoma cell line). Apoptosis analysis by Wright-Geimsa, Annexin-V, and DAPI staining indicated the role of apoptosis in ANI Ag NPs-mediated cell death. The measurement of NO, and Bcl2 and cleaved caspase-3 levels by colorimetric method and immunoblotting, respectively suggested their involvement in ANI Ag NPs-elicited apoptosis. The findings indicate that the biogenic approach proposed herein holds tremendous promise for the rapid and straightforward design of novel multifunctional nanoparticles for the treatment of T cell malignancies.
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Affiliation(s)
- Syed Mohd Adnan Naqvi
- Interdisciplinary Nanotechnology Centre (INC), Z. H. College of Engineering and Technology, Aligarh Muslim University, AMU, Aligarh UP-202002, India
| | - Sk Najrul Islam
- Interdisciplinary Nanotechnology Centre (INC), Z. H. College of Engineering and Technology, Aligarh Muslim University, AMU, Aligarh UP-202002, India
| | - Abhishek Kumar
- Tumor Biomarkers and Therapeutic Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi UP-221005, India
| | | | - Ajay Kumar
- Tumor Biomarkers and Therapeutic Lab, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi UP-221005, India.
| | - Absar Ahmad
- Interdisciplinary Nanotechnology Centre (INC), Z. H. College of Engineering and Technology, Aligarh Muslim University, AMU, Aligarh UP-202002, India.
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Torres-Obreque K, Kleingesinds EK, Santos JHPM, Carretero G, Rabelo J, Converti A, Monteiro G, Pessoa A, Rangel-Yagui CO. PEGylation versus glycosylation: effect on the thermodynamics and thermostability of crisantaspase. Prep Biochem Biotechnol 2024; 54:503-513. [PMID: 37698175 DOI: 10.1080/10826068.2023.2249100] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
Thermostability is an important and desired feature of therapeutic proteins and is critical for the success or failure of protein drugs development. It can be increased by PEGylation-binding of poly(ethylene glycol) moieties-or glycosylation-post-translational modification to add glycans. Here, the thermostability and thermodynamic parameters of native, PEGylated, and glycosylated versions of the antileukemic enzyme crisantaspase were investigated. First-order kinetics was found to describe the irreversible deactivation process. Activation energy of the enzyme-catalyzed reaction (E*) was estimated for native, PEGylated, and glycosylated enzyme (10.2, 14.8, and 18.8 kJ mol-1 respectively). Half-life decreased progressively with increasing temperature, and longer half-life was observed for PEG-crisantaspase (87.74 min) at 50 °C compared to the native form (9.79 min). The activation energy of denaturation of PEG-crisantaspase (307.1 kJ mol-1) was higher than for crisantaspase (218.1 kJ mol-1) and Glyco-crisantaspase (120.0 kJ mol-1), which means that more energy is required to overcome the energy barrier of the unfolding process. According to our results, PEG-crisantaspase is more thermostable than its native form, while Glyco-crisantaspase is more thermosensitive.
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Affiliation(s)
- Karin Torres-Obreque
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, São Paulo, Brazil
| | | | - João H P M Santos
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, São Paulo, Brazil
| | - Gustavo Carretero
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Jheniffer Rabelo
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, São Paulo, Brazil
| | - Attilio Converti
- Department of Civil, Chemical and Environmental Engineering, Pole of Chemical Engineering, University of Genoa, Genoa, Italy
| | - Gisele Monteiro
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, São Paulo, Brazil
| | - Adalberto Pessoa
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, São Paulo, Brazil
| | - Carlota O Rangel-Yagui
- Department of Biochemical and Pharmaceutical Technology, University of São Paulo, São Paulo, Brazil
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Bauch T, Hempel G. Proof of concept of physiologically based pharmacokinetic modelling in paediatric acute lymphoblastic leukaemia. Br J Haematol 2024. [PMID: 38494194 DOI: 10.1111/bjh.19410] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/23/2024] [Accepted: 03/06/2024] [Indexed: 03/19/2024]
Abstract
Physiologically based pharmacokinetic (PBPK) modelling is an alternative modelling technique that is increasingly used in pharmacokinetics. Due to its nature, it can be complementarily employed to population pharmacokinetics, especially when it comes to small population size. Here, we report the proof of concept of its application to accurately describe the pharmacokinetics of a recombinant L-asparaginase in paediatric patients with acute lymphoblastic leukaemia. Data from two randomized, double-blind, phase II/III clinical studies (MC-ASP.4/ALL; MC-ASP.5/ALL) were included to setup and evaluate the final model, respectively. Final population values for basic pharmacokinetic parameters were calculated (clearance: 0.0569 L/h/19.5 kg, volume of distribution: 1.251 L, half-life: 18.5 h, trough concentration: 140.9 IU/L). Pharmacokinetic parameter prediction as well as predictive performance of the model proofed to be comparable to a separately developed population pharmacokinetic model with 13% deviation in predicted median L-asparaginase trough levels. To the best of our knowledge, this is the first whole-body PBPK model of a non-antibody therapeutic protein.
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Affiliation(s)
- Thomas Bauch
- Department of Clinical Pharmacy, Institute for Pharmaceutical and Medical Chemistry, University of Münster, Münster, Germany
| | - Georg Hempel
- Department of Clinical Pharmacy, Institute for Pharmaceutical and Medical Chemistry, University of Münster, Münster, Germany
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Tsegaye K, Tsehai BA, Getie B. Desirable L-asparaginases for treating cancer and current research trends. Front Microbiol 2024; 15:1269282. [PMID: 38591038 PMCID: PMC11001194 DOI: 10.3389/fmicb.2024.1269282] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 02/20/2024] [Indexed: 04/10/2024] Open
Abstract
Amino acid depletion therapy is a promising approach for cancer treatment. It exploits the differences in the metabolic processes between healthy and cancerous cells. Certain microbial enzymes induce cancer cell apoptosis by removing essential amino acids. L-asparaginase is an enzyme approved by the FDA for the treatment of acute lymphoblastic leukemia. The enzymes currently employed in clinics come from two different sources: Escherichia coli and Erwinia chrysanthemi. Nevertheless, the search for improved enzymes and other sources continues because of several factors, including immunogenicity, in vivo instability, and protease degradation. Before determining whether L-asparaginase is clinically useful, research should consider the Michaelis constant, turnover number, and maximal velocity. The identification of L-asparaginase from microbial sources has been the subject of various studies. The primary goals of this review are to explore the most current approaches used in the search for therapeutically useful L-asparaginases and to establish whether these investigations identified the crucial characteristics of L-asparaginases before declaring their therapeutic potential.
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Affiliation(s)
- Kindu Tsegaye
- Department of Industrial Biotechnology, Institute of Biotechnology, University of Gondar, Gondar, Ethiopia
| | | | - Birhan Getie
- Department of Industrial Biotechnology, Institute of Biotechnology, University of Gondar, Gondar, Ethiopia
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10
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Barros RAM, Cristóvão RO, Carneiro IG, Barros MA, Pereira MM, Carabineiro SAC, Freire MG, Faria JL, Santos-Ebinuma VC, Tavares APM, Silva CG. Improved L-Asparaginase Properties and Reusability by Immobilization onto Functionalized Carbon Xerogels. Chempluschem 2024:e202400025. [PMID: 38436967 DOI: 10.1002/cplu.202400025] [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: 01/11/2024] [Revised: 02/21/2024] [Accepted: 03/04/2024] [Indexed: 03/05/2024]
Abstract
Enzyme immobilization can offer a range of significant advantages, including reusability, and increased selectivity, stability, and activity. In this work, a central composite design (CCD) of experiments and response surface methodology (RSM) were used to study, for the first time, the L-asparaginase (ASNase) immobilization onto functionalized carbon xerogels (CXs). The best results were achieved using CXs obtained by hydrothermal oxidation with nitric acid and subsequent heat treatment in a nitrogen flow at 600 °C (CX-OX-600). Under the optimal conditions (81 min of contact time, pH 6.2 and 0.36 g/L of ASNase), an immobilization yield (IY) of 100 % and relative recovered activity (RRA) of 103 % were achieved. The kinetic parameters obtained also indicate a 1.25-fold increase in the affinity of ASNase towards the substrate after immobilization. Moreover, the immobilized enzyme retained 97 % of its initial activity after 6 consecutive reaction cycles. All these outcomes confirm the promising properties of functionalized CXs as support for ASNase, bringing new insights into the development of an efficient and stable immobilization platform for use in the pharmaceutical industry, food industry, and biosensors.
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Affiliation(s)
- Rita A M Barros
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Raquel O Cristóvão
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Inês G Carneiro
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Maria A Barros
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Matheus M Pereira
- University of Coimbra, CERES, Department of Chemical Engineering, Rua Sílvio Lima, Pólo II - Pinhal de Marrocos, 3030-790, Coimbra, Portugal
| | - Sónia A C Carabineiro
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516, Caparica, Portugal
| | - Mara G Freire
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Joaquim L Faria
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
| | - Valéria C Santos-Ebinuma
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Bioprocess Engineering and Biotechnology, Araraquara, Brazil
| | - Ana P M Tavares
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Cláudia G Silva
- LSRE-LCM - Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465, Porto, Portugal
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11
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Chua RW, Song KP, Ting ASY. Antioxidant and L-asparaginase activities of culturable endophytic fungi from ornamental Dendrobium orchids. Lett Appl Microbiol 2024; 77:ovad096. [PMID: 37563083 DOI: 10.1093/lambio/ovad096] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/02/2023] [Accepted: 08/09/2023] [Indexed: 08/12/2023]
Abstract
This study reports the antioxidant potential and L-asparaginase production of culturable fungal endophytes from Dendrobium orchids in Malaysia. Twenty-nine isolates were screened using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay to determine their free radical scavenging activities and antioxidant capacity (IC50 and AEAC). L-asparaginase production of fungal endophytes was detected by the qualitative plate assay, and the enzyme activities estimated via the Nesslerization method. All 29 endophytic isolates exhibited various degrees of radical scavenging activities (35.37%-77.23%), with Fusarium fujikuroi (D1) identified as having the highest antioxidant capacity (IC50 6.097 mg/mL) and the highest AEAC value (11.55 mg/g). For L-asparaginase production, the majority of the isolates (89.66%) showed positive results, especially among the culturable species of Fusarium, Trichoderma, and Daldinia. Most Fusarium spp. were able to produce L-asparaginase (80.77%), but the highest L-asparaginase activity was detected in Daldinia eschscholtzii (D14) with 2.128 units/mL. Results from this study highlighted the potential of endophytic fungi from medicinal orchids (Dendrobium sp.) as natural sources of bioactive compounds to be developed into novel antioxidants and anticancer drugs.
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Affiliation(s)
- Ru Wei Chua
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia
| | - Keang Peng Song
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia
| | - Adeline Su Yien Ting
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia
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12
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Strandberg NJ, Serpa PBS, Fourez LM, Childress MO, Fulkerson CM, Fulkerson CV, Murakami M, Dos Santos AP. Marked paraneoplastic basophilia in a cat with alimentary T-cell lymphoma. Vet Clin Pathol 2024; 53:63-68. [PMID: 38041417 DOI: 10.1111/vcp.13313] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/27/2023] [Accepted: 09/30/2023] [Indexed: 12/03/2023]
Abstract
An 8-year-old, spayed female domestic shorthair cat was presented for acute weight loss, hyporexia, intermittent vomiting, and loose stools. A caudal abdominal mass and thickened intestinal loops were palpated on initial examination. An abdominal ultrasound identified a circumferential intramural jejunal mass with complete loss of wall layering, diffuse thickening of the jejunal muscularis, and jejunal and ileocecal lymphadenomegaly. Initial routine bloodwork revealed mild monocytosis and minimal lymphopenia with reactive lymphocytes. Cytologic evaluation of the jejunal mass and enlarged lymph nodes was consistent with lymphoma (intermediate cell size), and PCR for antigen receptor rearrangement revealed a clonal T-cell receptor rearrangement consistent with T-cell lymphoma. Chemotherapy (CHOP protocol) was initiated, but despite initial improvement of clinical signs, a repeat ultrasound examination 5 weeks after initiation of treatment revealed no improvement in the lymphadenomegaly or reduction in the size of the jejunal mass. At this visit, the cat also developed a marked basophilia (basophils 12.28 × 103 /μL, RI 0.00-0.10) with low numbers of circulating atypical lymphocytes; no concurrent eosinophilia was noted. Heartworm disease, ectoparasites, and allergic diseases were evaluated for and considered unlikely. The chemotherapy protocol was changed to L-asparaginase, followed by lomustine. The basophilia was significantly reduced 2 days after the initial dose of L-asparaginase and remained within the reference interval for 40 days before an eventual decline in the cat's health. To the authors' knowledge, this is the first report of paraneoplastic basophilia without concurrent eosinophilia in a cat with T-cell lymphoma.
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Affiliation(s)
- Natalia J Strandberg
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, Blacksburg, Virginia, USA
| | - Priscila B S Serpa
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Tech, Blacksburg, Virginia, USA
| | - Lindsey M Fourez
- Small Animal Hospital, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
| | - Michael O Childress
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
- Purdue University Institute for Cancer Research, West Lafayette, Indiana, USA
| | - Christopher M Fulkerson
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
- Purdue University Institute for Cancer Research, West Lafayette, Indiana, USA
| | - Caroline V Fulkerson
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
| | - Masahiro Murakami
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
| | - Andrea P Dos Santos
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
- Purdue University Institute for Cancer Research, West Lafayette, Indiana, USA
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13
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Chakraborty M, Shivakumar S. Application of sequential design for enhanced L-asparaginase synthesis from Ganoderma australe GPC191. World J Microbiol Biotechnol 2024; 40:85. [PMID: 38296867 DOI: 10.1007/s11274-023-03881-0] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 12/26/2023] [Indexed: 02/02/2024]
Abstract
With an increasing demand for L-asparaginase in pharmaceutical and food sectors for its cytostatic and acrylamide-reducing qualities, there's a need to discover novel, highly productive enzyme sources with improved pharmacokinetic profiles. Keeping this in mind, the present study aimed at maximizing the potential of Ganoderma australe GPC191 to produce L-asparaginase by fermentation medium optimization using statistical validation. Of the 11 physicochemical parameters evaluated under submerged fermentation conditions through one-factor-at-a-time approach and Plackett-Burman design, only four parameters (inoculum load, L-asparagine, soybean meal, and initial pH) influenced L-asparaginase production, significantly (p < 0.001). The optimal levels and interaction effects of these on the overall production were further evaluated by the central composite rotatable design of response surface methodology. Post-optimization, 27.34 U/mL was predicted as the maximum activity at pH 7 with 5n inoculum load and 15 g/L each of L-asparagine and soybean meal. Experimental validation yielded an activity of 28.52 U/mL, indicating an overall 18.17-fold increase from the unoptimized stage. To our knowledge, this is the first report signifying the L-asparaginase production aptitude of G. australe with sequential statistical validation using agricultural waste, which can serve as a model to enhance its yields, offering a sustainable and cost-effective solution for industrial application.
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Affiliation(s)
- Meghna Chakraborty
- Department of Microbiology and Botany, School of Sciences, JAIN (Deemed-to-be University), Bangalore, Karnataka, 560027, India
| | - Srividya Shivakumar
- School of Allied Healthcare and Sciences (SAHS), JAIN (Deemed-to-be University), Bangalore, Karnataka, 560066, India.
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14
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Darnal S, Raj R, Chhimwal J, Thakur S, Padwad YS, Singh D. Apoptosis and cell cycle arrest of leukemic cells by a robust and stable L-asparaginase from Pseudomonas sp. PCH199. Int J Biol Macromol 2024; 258:128739. [PMID: 38096943 DOI: 10.1016/j.ijbiomac.2023.128739] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 11/07/2023] [Accepted: 12/09/2023] [Indexed: 12/23/2023]
Abstract
Biomolecules obtained from microorganisms living in extreme environments possess properties that have pharmacokinetic advantages. Enzyme assay revealed recombinant L-ASNase, an extremozyme from Pseudomonas sp. PCH199 is to be highly stable with 90 % activity (200 h) at 37 °C. The stability of the enzyme in human serum (50 % activity maintained in 63 h) reveals high therapeutic potential with less dosage. The enzyme exhibited cytotoxicity to K562 blood cancer cell lines with IC50 of 0.37 U/mL without affecting the IEC-6 normal epithelial cell line. Due to the depletion of L-asparagine, K562 cells experience nutritional stress that results in the abruption of metabolic processes and eventually leads to apoptosis. Comparative studies on MCF-7 cells also revealed the same fate. Due to nutritional stress induced by L-ASNase treatment, mitochondrial membrane potential was lost, and reactive oxygen species were increased to 48 % (K562) and 21 % (MCF-7) as indicated by flow cytometric analysis. DAPI staining with prominent nuclear morphological changes visualized under the fluorescent microscope confirmed apoptosis in both cancer cells. Treatment increases pro-apoptotic Bax protein, and eventually, the cell cycle is arrested at the G2/M phase in both cell lines. Therefore, the current study paves the way for PCH199 L-ASNase to be considered a potential chemotherapeutic agent for treating acute lymphoblastic leukemia.
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Affiliation(s)
- Sanyukta Darnal
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176 061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Ravi Raj
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176 061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Jyoti Chhimwal
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India; Dietetics & Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176 061, India
| | - Shubham Thakur
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176 061, India
| | - Yogendra S Padwad
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India; Dietetics & Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176 061, India.
| | - Dharam Singh
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176 061, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India.
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15
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Zhou Y, Shen J, Chi H, Zhu X, Lu Z, Lu F, Zhu P. Rational engineering and insight for a L-glutaminase activity reduced type II L-asparaginase from Bacillus licheniformis and its antileukemic activity in vitro. Int J Biol Macromol 2024; 257:128690. [PMID: 38092107 DOI: 10.1016/j.ijbiomac.2023.128690] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/24/2023] [Accepted: 12/07/2023] [Indexed: 12/18/2023]
Abstract
Type II L-asparaginase (ASNase) has been approved by the FDA for treating acute lymphoid leukemia (ALL), but its therapeutic effect is limited by low catalytic efficiency and L-glutaminase (L-Gln) activity. This study utilized free energy based molecular dynamics calculations to identify residues associated with substrate binding in Bacillus licheniformis L-asparaginase II (BLASNase) with high catalytical activity. After saturation and combination mutagenesis, the mutant LGT (74 L/75G/111 T) with intensively reduced l-glutamine catalytic activity was generated. The l-glutamine/L-asparagine activity (L-Gln/L-Asn) of LGT was only 6.6 % of parent BLASNase, whereas the L-asparagine (L-Asn) activity was preserved >90 %. Furthermore, structural comparison and molecular dynamics calculations indicated that the mutant LGT had reduced binding ability and affinity towards l-glutamine. To evaluate its effect on acute leukemic cells, LGT was supplied in treating MOLT-4 cells. The experimental results demonstrated that LGT was more cytotoxic and promoted apoptosis compared with commercial Escherichia coli ASNase. Overall, our findings firstly provide insights into reducing l-glutamine activity without impacting L-asparagine activity for BLASNase to possess remarkable potential for anti-leukemia therapy.
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Affiliation(s)
- Yawen Zhou
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Juan Shen
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Huibing Chi
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiaoyu Zhu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhaoxin Lu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Fengxia Lu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Ping Zhu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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16
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Iraninasab S, Homaei A, Mosaddegh E, Torkzadeh-Mahani M. Polyamidoamine Dendrimers Functionalized with ZnO-Chitosan Nanoparticles as an Efficient Surface for L-asparaginase Immobilization. Appl Biochem Biotechnol 2024; 196:971-991. [PMID: 37285001 DOI: 10.1007/s12010-023-04590-y] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2023] [Indexed: 06/08/2023]
Abstract
In this study, the third-generation polyamidoamine dendrimer was functionalized with a 5-amino-1H-tetrazole heterocycle to load the synthesis enzyme and its surface groups. Then, chitosan was attached to the dendrimer by a suitable linker, and finally, zinc oxide nanoparticles were inserted into dendrimer cavities to increase loading. FTIR, FESEM, TEM, and DLS analysis showed that this new dendrimer has specific branches, and ZnO nanoparticles were spread between the branches and connected with the branches and chitosan biopolymer. Also proved the presence of stabilized L-asparaginase enzyme and ZnO nanoparticles in the designed system. Furthermore, the extent of L-asparaginase enzyme loading and release was investigated in the laboratory with a dialysis bag. Examining the toxicity of the new third-generation polyamidoamine (PAMAM) dendrimeric nanocarrier based on chitosan-zinc oxide biopolymer (PAMAM-G3@ZnO-Cs nanocarrier) on the Jurkat cell line (human acute lymphoblastic leukemia) at pH 7.4 showed that this nanocarrier effectively encapsulates the drug L-asparaginase and slowly releases it and also preventing the growth of cancer cells. The activity of the loaded enzyme in the nanocarrier and the free enzyme was calculated. During the investigations, it was found that the enzyme attached to the nanocarrier is more stable than the free enzyme at optimal pH and temperature and at high temperatures, acidic and basic pHs. Vmax and Km values were lower for loaded enzymes. The synthesized PAMAM-G3@ZnO-Cs nanocarrier can be a promising candidate in the pharmaceutical industry and medical science for cancer treatment due to its biocompatibility, non-toxicity, stability, and slow release of L-asparaginase.
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Affiliation(s)
- Sudabeh Iraninasab
- Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, P.O. Box 3995, Bandar Abbas, Iran
| | - Ahmad Homaei
- Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, P.O. Box 3995, Bandar Abbas, Iran.
| | - Elaheh Mosaddegh
- Department of New Materials, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, PO Box 76315-117, Kerman, Iran
| | - Masoud Torkzadeh-Mahani
- Department of Biotechnology, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
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17
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Patial V, Kumar S, Joshi R, Singh D. Biochemical characterization of glutaminase-free L-asparaginases from Himalayan Pseudomonas and Rahnella spp. for acrylamide mitigation. Int J Biol Macromol 2024; 257:128576. [PMID: 38048933 DOI: 10.1016/j.ijbiomac.2023.128576] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 11/20/2023] [Accepted: 12/01/2023] [Indexed: 12/06/2023]
Abstract
L-asparaginase having low glutaminase activity is important in clinical and food applications. Herein, glutaminase-free L-asparaginase (type I) coding genes from Pseudomonas sp. PCH182 (Ps-ASNase I) and Rahnella sp. PCH162 (Rs-ASNase I) was amplified using gene-specific primers, cloned into a pET-47b(+) vector, and plasmids were transformed into Escherichia coli (E. coli). Further, affinity chromatography purified recombinant proteins to homogeneity with monomer sizes of ~37.0 kDa. Purified Ps-ASNase I and Rs-ASNase I were active at wide pHs and temperatures with optimum activity at 50 °C (492 ± 5 U/mg) and 37 °C (308 ± 4 U/mg), respectively. Kinetic constant Km and Vmax for L-asparagine (Asn) were 2.7 ± 0.06 mM and 526.31 ± 4.0 U/mg for Ps-ASNase I, and 4.43 ± 1.06 mM and 434.78 ± 4.0 U/mg for Rs-ASNase I. Circular dichroism study revealed 29.3 % and 24.12 % α-helix structures in Ps-ASNase I and Rs-ASNase I, respectively. Upon their evaluation to mitigate acrylamide formation, 43 % and 34 % acrylamide (AA) reduction were achieved after pre-treatment of raw potato slices, consistent with 65 % and 59 % Asn reduction for Ps-ASNase I and Rs-ASNase I, respectively. Current findings suggested the potential of less explored intracellular L-asparaginase in AA mitigation for food safety.
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Affiliation(s)
- Vijeta Patial
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176 061, Himachal Pradesh, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Subhash Kumar
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176 061, Himachal Pradesh, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Robin Joshi
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176 061, Himachal Pradesh, India
| | - Dharam Singh
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176 061, Himachal Pradesh, India; Academy of Scientific & Innovative Research (AcSIR), Ghaziabad 201 002, India.
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18
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Tripathy RK, Anakha J, Pande AH. Towards development of biobetter: L-asparaginase a case study. Biochim Biophys Acta Gen Subj 2024; 1868:130499. [PMID: 37914146 DOI: 10.1016/j.bbagen.2023.130499] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/03/2023]
Abstract
BACKGROUND L-asparaginase (ASNase) has played a key role in the management of acute lymphoblastic leukaemia (ALL). As an amidohydrolase, it catalyzes the hydrolysis of L-asparagine, a crucial step in the treatment of ALL. Various ASNase variants have evolved from diverse sources since it was first used in paediatric patients in the 1960s. This review describes the available ASNase and approaches being used to develop ASNase as a biobetter candidate. SCOPE OF REVIEW The review discusses the Glycosylation and PEGylation techniques, which are frequently used to develop biobetter versions of the majority of the therapeutic proteins. Further, it explores current ASNase biobetters in therapeutic use and discusses the protein engineering and chemical modification approaches that were employed to reduce immunogenicity, extend protein half-life, and enhance protease stability of ASNase. Emerging strategies like immobilization and encapsulation are also highlighted as potential pathways for improving ASNase properties. MAJOR CONCLUSIONS The purpose of the development of ASNase biobetter is to achieve a novel therapeutic candidate that could improve catalytic efficiency, in vivo stability with minimum glutaminase (GLNase) activity and toxicity. Modification of ASNase by immobilization and encapsulation or by fusion technologies like Albumin fusion, Fc fusion, ELP fusion, XTEN fusion, etc. can be exploited to develop a novel biobetter candidate suitable for therapeutic approaches. GENERAL SIGNIFICANCE This review emphasizes the importance of biobetter development for therapeutic proteins like ASNase. Improved ASNase molecules have the potential to significantly advance the treatment of ALL and have broader implications in the pharmaceutical industry.
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Affiliation(s)
- Rajan K Tripathy
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Mohali 160062, Punjab, India
| | - J Anakha
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Mohali 160062, Punjab, India
| | - Abhay H Pande
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Mohali 160062, Punjab, India.
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19
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Rodrigues Andrade KC, Cordeiro de Abreu JA, Guimarães MB, Abrunhosa LS, Leôncio Rodrigues AL, Fonseca-Bazzo YM, Silveira D, Souza PM, Magalhães PO. Heterologous expression of fungal L-asparaginase: a systematic review. Future Microbiol 2024; 19:157-171. [PMID: 37882841 DOI: 10.2217/fmb-2023-0131] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023] Open
Abstract
Aim: To review the available literature about heterologous expression of fungal L-asparaginase (L-ASNase). Materials & methods: A search was conducted across PubMed, Science Direct, Scopus and Web of Science databases; 4172 citations were identified and seven articles were selected. Results: The results showed that heterologous expression of fungal L-ASNase was performed mostly in bacterial expression systems, except for a study that expressed L-ASNase in a yeast system. Only three publications reported the purification and characterization of the enzyme. Conclusion: The information reported in this systematic review can contribute significantly to the recognition of the importance of biotechnological techniques for L-ASNase production.
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Affiliation(s)
| | | | - Marina Borges Guimarães
- Laboratory of Natural Products, Health Science School, University of Brasília, Brasília, 70910-900, Brazil
| | - Letícia Santos Abrunhosa
- Laboratory of Natural Products, Health Science School, University of Brasília, Brasília, 70910-900, Brazil
| | | | - Yris Maria Fonseca-Bazzo
- Laboratory of Natural Products, Health Science School, University of Brasília, Brasília, 70910-900, Brazil
| | - Damaris Silveira
- Laboratory of Natural Products, Health Science School, University of Brasília, Brasília, 70910-900, Brazil
| | - Paula Monteiro Souza
- Laboratory of Natural Products, Health Science School, University of Brasília, Brasília, 70910-900, Brazil
| | - Pérola Oliveira Magalhães
- Laboratory of Natural Products, Health Science School, University of Brasília, Brasília, 70910-900, Brazil
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20
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Chi H, Jiang Q, Feng Y, Zhang G, Wang Y, Zhu P, Lu Z, Lu F. Thermal Stability Enhancement of L-Asparaginase from Corynebacterium glutamicum Based on a Semi-Rational Design and Its Effect on Acrylamide Mitigation Capacity in Biscuits. Foods 2023; 12:4364. [PMID: 38231880 DOI: 10.3390/foods12234364] [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: 09/29/2023] [Revised: 10/19/2023] [Accepted: 11/29/2023] [Indexed: 01/19/2024] Open
Abstract
Acrylamide is present in thermally processed foods, and it possesses toxic and carcinogenic properties. L-asparaginases could effectively regulate the formation of acrylamide at the source. However, current L-asparaginases have drawbacks such as poor thermal stability, low catalytic activity, and poor substrate specificity, thereby restricting their utility in the food industry. To address this issue, this study employed consensus design to predict the crucial residues influencing the thermal stability of Corynebacterium glutamicum L-asparaginase (CgASNase). Subsequently, a combination of site-point saturating mutation and combinatorial mutation techniques was applied to generate the double-mutant enzyme L42T/S213N. Remarkably, L42T/S213N displayed significantly enhanced thermal stability without a substantial impact on its enzymatic activity. Notably, its half-life at 40 °C reached an impressive 13.29 ± 0.91 min, surpassing that of CgASNase (3.24 ± 0.23 min). Moreover, the enhanced thermal stability of L42T/S213N can be attributed to an increased positive surface charge and a more symmetrical positive potential, as revealed by three-dimensional structural simulations and structure comparison analyses. To assess the impact of L42T/S213N on acrylamide removal in biscuits, the optimal treatment conditions for acrylamide removal were determined through a combination of one-way and orthogonal tests, with an enzyme dosage of 300 IU/kg flour, an enzyme reaction temperature of 40 °C, and an enzyme reaction time of 30 min. Under these conditions, compared to the control (464.74 ± 6.68 µg/kg), the acrylamide reduction in double-mutant-enzyme-treated biscuits was 85.31%, while the reduction in wild-type-treated biscuits was 68.78%. These results suggest that L42T/S213N is a promising candidate for industrial applications of L-asparaginase.
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Affiliation(s)
- Huibing Chi
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Qingwei Jiang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yiqian Feng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Guizheng Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yilian Wang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Ping Zhu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhaoxin Lu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Fengxia Lu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
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21
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Rajendra A, Sengar M, Bonda VNA, Jain H, Nayak L, Thorat J, Shet T, Epari S, Laskar S, Aggarwal A, Rangarajan V, Gujral S, Bagal B, Kakoti S, Salvi O. Outcomes and prognostic factors of patients with Extranodal NK T cell lymphoma (ENKTL). Leuk Lymphoma 2023; 64:1914-1926. [PMID: 37602660 DOI: 10.1080/10428194.2023.2244101] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 07/26/2023] [Accepted: 07/30/2023] [Indexed: 08/22/2023]
Abstract
The staging, prognostication, and treatment of ENKTL has evolved over the years with better understanding of the disease biology. There is significant heterogeneity in the treatment followed across the world. Literature from India have been few with small number of patients. We studied the outcomes and prognostic factors of patients with ENKTL treated between May 2010 and December 2021 at our center. A total of 78 patients diagnosed with ENKTL were treated at our center. L-asparaginase based chemotherapy was administered in 84% of the patients. Close to 2/3rd patients received SMILE chemotherapy. After a median follow-up of 30 months (18.5-41.4 months), the median relapse free survival and overall survival for the overall population was 45 months (12-118 months) and 45 months (14-118 months) respectively. By multivariate analysis, PINK score of 2-4, non-receipt of RT and non-achievement of CR were associated with poor survival.
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Affiliation(s)
- Akhil Rajendra
- Department of Medical Oncology, Cancer Institute, W.I.A, Chennai, Tamil Nadu, India
| | - Manju Sengar
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - V N Avinash Bonda
- Medical Oncology, Institute of Oncology, AIG Hospitals, Hyderabad, India
| | - Hasmukh Jain
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - Lingaraj Nayak
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - Jayashree Thorat
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - Tanuja Shet
- Department of Pathology, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - Sridhar Epari
- Department of Pathology, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - Siddharth Laskar
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - Archi Aggarwal
- Department of Nuclear Medicine, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - V Rangarajan
- Department of Pathology, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - Sumeet Gujral
- Department of Pathology, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - Bhausaheb Bagal
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - Sangeeta Kakoti
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
| | - Omkar Salvi
- Clinical Research Secretariat, Tata Memorial Centre, Mumbai, Affiliated to Homi Bhabha National Institute(HBNI), Mumbai, India
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22
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Chua RW, Song KP, Ting ASY. Antioxidant properties and L-asparaginase activities of endophytic fungi from Cymbidium orchids. Folia Microbiol (Praha) 2023:10.1007/s12223-023-01112-5. [PMID: 37995083 DOI: 10.1007/s12223-023-01112-5] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 11/14/2023] [Indexed: 11/24/2023]
Abstract
This study profiled the various endophytic fungi isolated from the orchid Cymbidium sp. and their L-asparaginase production and antioxidant potential. The L-asparaginase production was first screened through qualitative plate screening then quantified by the Nesslerization method. The antioxidant potential was quantified via the 2,2-diphenyl-1-picrylhydrazyl assay. A total of 30 endophytic fungi were isolated and all fungal isolates exhibited various degrees of radical scavenging activities (45.28% to 76.4%). Isolate Lasiodiplodia theobromae (C11) had the highest antioxidant capacity, represented by the lowest IC50 value (5.75 mg/mL) and highest ascorbic acid equivalent antioxidant capacity value (12.17 mg/g). Additionally, 16 isolates produced L-asparaginase (53.33%), which includes primarily species of Fusarium proliferatum, Fusarium fujikuroi, Fusarium incarnatum, and Fusarium oxysporum. A new isolate has also been discovered from Cymbidium orchid, Buergenerula spartinae (C28), which showed the highest L-asparaginase activity (1.736 unit/mL). These findings supported the postulation that medicinal species of Orchidaceae such as Cymbidium sp. harbor endophytes that are producers of L-asparaginase and antioxidants with various potential applications.
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Affiliation(s)
- Ru Wei Chua
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Keang Peng Song
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Adeline Su Yien Ting
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
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23
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Dastmalchi M, Alizadeh M, Jamshidi-Kandjan O, Rezazadeh H, Hamzeh-Mivehroud M, Farajollahi MM, Dastmalchi S. Expression and Biological Evaluation of an Engineered Recombinant L-asparaginase Designed by In Silico Method Based on Sequence of the Enzyme from Escherichia coli. Adv Pharm Bull 2023; 13:827-836. [PMID: 38022803 PMCID: PMC10676546 DOI: 10.34172/apb.2023.085] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/31/2023] [Accepted: 06/10/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose Medical usage of L-asparaginase (ASNase), the first-line of acute lymphoblastic leukemia treatment, is linked to allergic responses and toxicities, which necessitates the development of new bio-better ASNases. The aim of the current study was in silico design of a novel ASNase with predicted improved enzymatic properties using strategies encompassing sequence-function analysis of known ASNase mutants. Additionally, current study aimed to show that the new enzyme is active. Methods Based on 21 experimentally reported mutations for ASNase, a virtual library of mutated enzymes with all 7546 possible combinations of up to 4 mutations was generated. Three-dimensional models of proposed mutant enzymes were built and their in silico stabilities were calculated. The most promising mutant was selected for preparing a genetic construct suitable for expression of the designed ASNase in bacterial cells. Results Computational study predicted that Y176F/S241C double mutation of Escherichia coli ASNase may increase its folding stability. The designed ASNase was expressed in two different E. coli strains (Origami B(DE3) and BL21(DE3)pLysS) and then the soluble fractions prepared from the cell lysates of the host cells were used in enzyme activity assay. Results showed that enzyme activity of soluble fraction from Origami (95.4 ± 7.5 IU/0.1 mL) was four times higher than that of soluble fraction from pLysS (25.8 ± 2.5 IU/0.1 mL). Conclusion A novel functional double mutant ASNase with predicted improved enzymatic properties was designed and produced in E. coli. The results of the current study suggest a great commercial potential for the identified enzyme in pharmaceutical and industrial applications.
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Affiliation(s)
- Mahrokh Dastmalchi
- Department of Medical Biotechnology, Faculty of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdiyeh Alizadeh
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Omid Jamshidi-Kandjan
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hassan Rezazadeh
- Department of Pharmacology and Toxicology, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Hamzeh-Mivehroud
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad M Farajollahi
- Department of Medical Biotechnology, Faculty of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmacology and Toxicology, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Faculty of Pharmacy, Near East University, POBOX:99138, Nicosia, North Cyprus, Mersin 10, Turkey
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24
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Shishparenok AN, Gladilina YA, Zhdanov DD. Engineering and Expression Strategies for Optimization of L-Asparaginase Development and Production. Int J Mol Sci 2023; 24:15220. [PMID: 37894901 PMCID: PMC10607044 DOI: 10.3390/ijms242015220] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
Genetic engineering for heterologous expression has advanced in recent years. Model systems such as Escherichia coli, Bacillus subtilis and Pichia pastoris are often used as host microorganisms for the enzymatic production of L-asparaginase, an enzyme widely used in the clinic for the treatment of leukemia and in bakeries for the reduction of acrylamide. Newly developed recombinant L-asparaginase (L-ASNase) may have a low affinity for asparagine, reduced catalytic activity, low stability, and increased glutaminase activity or immunogenicity. Some successful commercial preparations of L-ASNase are now available. Therefore, obtaining novel L-ASNases with improved properties suitable for food or clinical applications remains a challenge. The combination of rational design and/or directed evolution and heterologous expression has been used to create enzymes with desired characteristics. Computer design, combined with other methods, could make it possible to generate mutant libraries of novel L-ASNases without costly and time-consuming efforts. In this review, we summarize the strategies and approaches for obtaining and developing L-ASNase with improved properties.
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Affiliation(s)
- Anastasiya N. Shishparenok
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, Pogodinskaya St. 10/8, 119121 Moscow, Russia; (A.N.S.); (Y.A.G.)
| | - Yulia A. Gladilina
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, Pogodinskaya St. 10/8, 119121 Moscow, Russia; (A.N.S.); (Y.A.G.)
| | - Dmitry D. Zhdanov
- Laboratory of Medical Biotechnology, Institute of Biomedical Chemistry, Pogodinskaya St. 10/8, 119121 Moscow, Russia; (A.N.S.); (Y.A.G.)
- Department of Biochemistry, Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University), Miklukho—Maklaya St. 6, 117198 Moscow, Russia
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25
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Gan PT, Lim YY, Ting ASY. Influence of light regulation on growth and enzyme production in rare endolichenic fungi. Folia Microbiol (Praha) 2023; 68:741-755. [PMID: 37022636 DOI: 10.1007/s12223-023-01050-2] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 03/28/2023] [Indexed: 04/07/2023]
Abstract
The influence of light regulation on the growth and enzyme production of three endolichenic fungal isolates, i.e. Pseudopestalotiopsis theae (EF13), Fusarium solani (EF5), and Xylaria venustula (PH22), was determined. The isolates were exposed to blue, red, green, yellow, white fluorescent light (12 h light-12 h dark photoperiod) (test), and 24 h dark (control) conditions. Results revealed that the alternating light-dark conditions resulted in the formation of dark rings in most fungal isolates but was absent in PH22. Red light induced sporulation while yellow light elicited higher biomass in all isolates (0.19 ± 0.01 g, 0.07 ± 0.00 g, and 0.11 ± 0.00 g, for EF13, PH22, and EF5, respectively) as compared to incubation in the dark. Results also showed that blue light induced higher amylase activity in PH22 (15.31 ± 0.45 U/mL) and L-asparaginase activity in all isolates (0.45 ± 0.01 U/mL, 0.55 ± 0.39 U/mL, and 0.38 ± 0.01 U/mL, for EF13, PH22, and EF5, respectively) compared to both control conditions. Green light enhanced the production of xylanase (6.57 ± 0.42 U/mL, 10.64 ± 0.12 U/mL, and 7.55 ± 0.56 U/mL for EF13, PH22, and EF5, respectively) and cellulase (6.49 ± 0.48 U/mL, 9.57 ± 0.25 U/mL, and 7.28 ± 0.63 U/mL, for EF13, PH22, and EF5, respectively). In contrast, red light was the least effective light treatment as production of enzymes was the least, with lower levels of amylase, cellulase, xylanase, and L-asparaginase detected. To conclude, all three endolichenic fungi are light-responsive, with fungal growth regulated with the use of red light and yellow light, and manipulation of enzyme production via blue and green light.
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Affiliation(s)
- Peck Ting Gan
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, Selangor Darul Ehsan, 47500, Bandar Sunway, Malaysia
| | - Yau Yan Lim
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, Selangor Darul Ehsan, 47500, Bandar Sunway, Malaysia
| | - Adeline Su Yien Ting
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, Selangor Darul Ehsan, 47500, Bandar Sunway, Malaysia.
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26
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Jayaraman D, Sneha LM, Jeyarani G, Somayajula A, Kothandam BT, Scott JX, Gadekar A. Experience with Generic Pegylated L-asparaginase in Children with Acute Lymphoblastic Leukemia from a Tertiary Care Oncology Center in South India. South Asian J Cancer 2023; 12:371-377. [PMID: 38130281 PMCID: PMC10733070 DOI: 10.1055/s-0042-1759785] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
Dhaarani JayaramanBackground Acute lymphoblastic leukemia (ALL) is a common type of leukemia in children. The innovator pegylated L-asparaginase has several advantages over native L-asparaginase; however, its use in India is limited due to availability and cost. Therefore, a generic pegylated L-asparaginase can be considered as an alternative to the innovator molecule. Methods A retrospective study was conducted to assess the outcome (minimal residual disease [MRD]) and toxicity of a generic pegylated L-asparaginase (Hamsyl) at the end of induction therapy. Results Eighty-eight (80.7%) and 21 (19.3%) patients had received generic pegylated L-asparaginase and conventional asparaginase, respectively, as a part of their treatment protocol. Nearly 82% of patients had B-type ALL. Eight-one percent of children had a white blood cell count of fewer than 50,000/mm 3 . At the end of induction, 80.7% (88) of children were minimal residual disease (MRD)-negative, and at the end of augmented consolidation therapy, 20.2% were MRD-negative. Ten percent of patients exhibited allergic reactions. Two children had pancreatitis, and one child had central venous thrombosis. Conclusion The generic pegylated L-asparaginase (Hamsyl) was effective and safe for use in pediatric ALL.
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Affiliation(s)
- Dhaarani Jayaraman
- Division of Pediatric Hemato-Oncology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Latha M. Sneha
- Division of Pediatric Hemato-Oncology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Gracelin Jeyarani
- Division of Pediatric Hemato-Oncology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Alekhya Somayajula
- Department of Pediatrics, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Balaji Thiruvengadam Kothandam
- Division of Pediatric Hemato-Oncology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - Julius Xavier Scott
- Division of Pediatric Hemato-Oncology, Sri Ramachandra Institute of Higher Education and Research, Chennai, Tamil Nadu, India
| | - A Gadekar
- Emcure Pharma, Pune, Maharashtra, India
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27
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Tan YQ, Loh CK, Makpol S. A Review of L-Asparaginase Hypersensitivity in Paediatric Acute Lymphoblastic Leukaemia Patients with Regard to the Measurement of Anti-Asparaginase Antibodies and Their Genetic Predisposition. Malays J Med Sci 2023; 30:40-51. [PMID: 37928798 PMCID: PMC10624446 DOI: 10.21315/mjms2023.30.5.4] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/22/2022] [Indexed: 11/07/2023] Open
Abstract
L-asparaginase is effective as part of the first line childhood acute lymphoblastic leukaemia (ALL) treatment regimen but suffers the risk of antibody production causing immune-mediated sequelae. This article aimed to describe the clinical implication of L-asparaginase hypersensitivity and review the types of antibodies and genetic polymorphisms contributing to it. Clinical or subclinical L-asparaginase hypersensitivity may lead to suboptimum therapeutic effect and jeopardise the clinical outcome in ALL children. Anti-asparaginase antibodies immunoglobulin (Ig)G, IgM and IgE were identified in the L-asparaginase hypersensitivities. Enzyme-linked immunosorbent assay (ELISA) is commonly used to quantify the IgG and IgM levels. The role of IgE in mediating L-asparaginase hypersensitivity is contradictory. Moreover, the presence of antibodies may not necessarily correlate inversely with the L-asparaginase efficacies in some studies. Patients with specific genetic variants have been shown to be more susceptible to clinical hypersensitivity of L-asparaginase. With the advance of technology, gene polymorphisms have been identified among Caucasians using whole-genome or exon sequencing, but the evidence is scanty among Asians. There is lack of pre-clinical study models that could help in understanding the pathophysiological pathway co-relating the gene expression and anti-asparaginase antibody formation. In conclusion, future research studies are required to fill the current gap in understanding the immune mediated reactions towards L-asparaginase upon its administration and its potential impact to the disease outcome.
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Affiliation(s)
- Yan Qi Tan
- Department of Paediatrics, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - C-Khai Loh
- Department of Paediatrics, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Suzana Makpol
- Department of Biochemistry, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
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28
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Batsalova T, Teneva I, Bardarov K, Moten D, Dzhambazov B. Anticitrullinated antibodies recognize rheumatoid arthritis associated T-cell epitopes modified by bacterial L-asparaginase. Cent Eur J Immunol 2023; 48:174-188. [PMID: 37901867 PMCID: PMC10604640 DOI: 10.5114/ceji.2023.131455] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 07/07/2023] [Indexed: 10/31/2023] Open
Abstract
Citrullinated proteins and anti-citrullinated protein antibodies (ACPAs) play an important role in the pathogenesis of rheumatoid arthritis (RA). It has been suggested that during inflammation or dysbiosis, bacteria could initiate production of ACPAs. Most patients with RA are seropositive for ACPAs, but these antibodies have overlapping reactivity to different posttranslational modifications (PTMs). For initiation and development of RA, T lymphocytes and T cell epitopes are still required. In this study, we evaluated the ability of bacterial L-asparaginase to modify RA-related T cell epitopes within type II collagen (CII259-273 and CII311-325), as well as whether these modified epitopes are recognized by ACPAs from RA patients. We included 12 patients with early RA and 11 healthy subjects selected according to predefined specific criteria. LC-MS/MS analyses revealed that the bacterial L-asparaginase can modify investigated T cell epitopes. ELISA tests showed cross-reactivity of ACPA positive sera from early RA patients towards the enzymatically modified immunodominant T cell epitopes within type II collagen (CII), but not to the modified irrelevant peptides. These data suggest that the cross-reactive ACPAs recognize the "carbonyl-Gly-Pro" motif in CII. Moreover, the T cell recognition of the modified major immunodominant T cell epitope Gal264-CII259-273 was not affected. This epitope was still able to activate autoreactive T cells from early RA patients. It is likely that such modifications are the missing link between the T cell priming and the development of anti-modified protein antibodies (AMPAs). Our results provide additional information on the etiology and pathogenesis of RA.
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Affiliation(s)
| | - Ivanka Teneva
- Faculty of Biology, Paisii Hilendarski University of Plovdiv, Plovdiv, Bulgaria
| | | | - Dzhemal Moten
- Faculty of Biology, Paisii Hilendarski University of Plovdiv, Plovdiv, Bulgaria
| | - Balik Dzhambazov
- Faculty of Biology, Paisii Hilendarski University of Plovdiv, Plovdiv, Bulgaria
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29
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Osama S, El-Sherei MM, Al-Mahdy DA, Bishr M, Salama O, Raafat MM. Optimization and characterization of antileukemic L-asparaginase produced by Fusarium solani endophyte. AMB Express 2023; 13:96. [PMID: 37702815 PMCID: PMC10499768 DOI: 10.1186/s13568-023-01602-2] [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: 04/07/2023] [Accepted: 08/30/2023] [Indexed: 09/14/2023] Open
Abstract
L-asparaginase is an antileukemic enzyme that hydrolyzes L-asparagine into L-aspartic acid and ammonia, causing cell starvation and apoptosis in susceptible leukemic cell populations. Currently, L-asparaginase obtained from bacterial sources is constrained by several issues, including lesser productivity, stability, selectivity, and higher toxicity. The goal of this study is to provide fungal L-asparaginase with in-vitro effectiveness towards different human carcinomas. L-asparaginase from endophytic Fusarium solani (Gene Bank accession number MW209717) isolated from the roots of the medicinal plant Hedera helix L. was characterized and optimized experimentally for maximum L-asparaginase production in addition to evaluating its subsequent cytotoxicity towards acute monocytic leukemia and human skin fibroblast cell lines. The enzyme production was maximized using potato dextrose media (15.44 IU/ml/hr) at the 5th and 6th days of fermentation with incubation temperature 30 °C, 3% asparagine, 150-180 rpm agitation rate and a 250 ml flask. Enzyme characterization studies revealed that the enzyme maintained its thermal stability with temperatures up to 60 °C. However, its optimal activity was achieved at 35 °C. On measuring the enzymatic activity at various temperatures and different pH, maximum enzyme activity was recorded at 40 °C and pH 8 using 0.1 M asparagine concentration. Results also revealed promising cytotoxic activity against acute monocytic leukemia with IC50 = 3.66 µg/ml and low cytotoxicity against tested normal human skin fibroblast cell line which suggested that it might have selective toxicity, and consequently it could be used as a less toxic alternative to the current formulations.
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Affiliation(s)
- Sarah Osama
- Pharmacognosy and Medicinal Plants Department, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
| | - Moshera M El-Sherei
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt
| | - Dalia A Al-Mahdy
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt.
| | - Mokhtar Bishr
- Arab Company for Pharmaceuticals and Medicinal Plants (Mepaco), Cairo, Egypt
| | - Osama Salama
- Pharmacognosy and Medicinal Plants Department, Faculty of Pharmacy, Future University in Egypt, Cairo, Egypt
| | - Marwa M Raafat
- Microbiology and Immunology Department, Faculty of Pharmacy, Future University in Egypt, Cairo, 11835, Egypt.
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Akwagiobe E, Ekpenyong M, Asitok A, Amenaghawon A, Ubi D, Ikharia E, Kusuma H, Antai S. Strain improvement, artificial intelligence optimization, and sensitivity analysis of asparaginase-mediated acrylamide reduction in sweet potato chips. J Food Sci Technol 2023; 60:2358-2369. [PMID: 37424578 PMCID: PMC10326208 DOI: 10.1007/s13197-023-05757-5] [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] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/02/2023] [Accepted: 03/26/2023] [Indexed: 07/11/2023]
Abstract
In recent times, L-asparaginase has emerged as a potential anti-carcinogen through hydrolysis of L-asparagine in the blood for anti-leukemic application, and in carbohydrate-based foods, for acrylamide reduction applications. In this study, Aspergillus sydowii strain UCCM 00124 produced an L-asparaginase with a baseline acrylamide reduction potential of 64.5% in sweet potato chips. Plasma mutagenesis at atmospheric pressure and room temperature (ARTP) was employed to improve L-asparaginase production while artificial neural network embedded with genetic algorithm (ANN-GA) and global sensitivity analysis were used to identify and optimize process conditions for improved acrylamide reduction in sweet potato chips. The ARTP mutagenesis generated a valine-deficient mutant, Val-Asp-S-180-L with 2.5-fold L-asparaginase improvement. The ANN-GA hybrid evolutionary intelligence significantly improved process efficiency to 98.18% under optimized conditions set as 118.6 °C, 726.37 g/L asparagine content, 9.92 µg/mL L-asparaginase, 4.54% NaCl, and soaking time of 15 h without significant changes in sensory properties. The sensitivity index revealed initial asparagine content as the most sensitive parameter to the bioprocess. The enzyme demonstrated significant thermo-stability with Arrhenius deactivation rate constant, Kd, of 0.00562 min-1 and half-life, t1/2, of 123.35 min at 338 K. These conditions are recommended for sustainable healthier, and safer sweet potato chips processing in the food industry. Supplementary Information The online version contains supplementary material available at 10.1007/s13197-023-05757-5.
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Affiliation(s)
- Ernest Akwagiobe
- Food and Industrial Microbiology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Nigeria
| | - Maurice Ekpenyong
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, University of Calabar, Calabar, Nigeria
- University of Calabar Collection of Microorganisms (UCCM), University of Calabar, Calabar, Nigeria
| | - Atim Asitok
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, University of Calabar, Calabar, Nigeria
- University of Calabar Collection of Microorganisms (UCCM), University of Calabar, Calabar, Nigeria
| | - Andrew Amenaghawon
- Department of Chemical Engineering, Faculty of Engineering, University of Benin, Benin City, Nigeria
| | - David Ubi
- Food and Industrial Microbiology Unit, Department of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Nigeria
| | - Eloghosa Ikharia
- University of Calabar Collection of Microorganisms (UCCM), University of Calabar, Calabar, Nigeria
| | - Heri Kusuma
- Department of Chemical Engineering, Faculty of Industrial Technology, Universitas Pembangunan Nasional “Veteran” Yogyakarta, Yogyakarta, Indonesia
| | - Sylvester Antai
- Environmental Microbiology and Biotechnology Unit, Department of Microbiology, University of Calabar, Calabar, Nigeria
- University of Calabar Collection of Microorganisms (UCCM), University of Calabar, Calabar, Nigeria
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Noguchi K, Ikawa Y, Takenaka M, Sakai Y, Fujiki T, Kuroda R, Maeba H, Goto H, Kitoh T, Wada T. L-asparaginase as an efficient salvage therapy for refractory acute myeloid leukemia with chromosome 7 abnormalities: a case series. Int J Hematol 2023; 118:406-410. [PMID: 37022561 DOI: 10.1007/s12185-023-03591-1] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/25/2023] [Accepted: 03/27/2023] [Indexed: 04/07/2023]
Abstract
Acute myeloid leukemia (AML) with chromosome 7 abnormalities has a dismal prognosis due to a poor complete remission (CR) rate after induction chemotherapy. Although various salvage therapies for refractory AML have been developed for adults, few salvage therapies are available for children. Here, we report the cases of three patients with refractory AML with chromosome 7 abnormalities (Patient 1, with inv(3)(q21;3q26.2) and monosomy 7; Patient 2, with der(7)t(1;7)(?;q22); patient 3, with monosomy 7) who were successfully treated with L-asparaginase (L-ASP) as salvage therapy. All three patients achieved CR several weeks after L-ASP treatment, and two patients successfully underwent hematopoietic stem cell transplantation (HSCT). Patient 2 relapsed after the second HSCT in the form of an intracranial lesion, but achieved and sustained CR for 3 years with weekly L-ASP maintenance therapy. Immunohistochemical staining for asparagine synthetase (ASNS), whose gene is located at 7q21.3, was performed for each patient. The result was negative in all patients, which suggests that haploid 7q21.3 and other chromosome 7 abnormalities leading to haploinsufficiency of ASNS contribute to a high susceptibility to L-ASP. In conclusion, L-ASP is a promising salvage therapy for refractory AML with chromosome 7 abnormalities, which are associated with ASNS haploinsufficiency.
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Affiliation(s)
- Kazuhiro Noguchi
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Yasuhiro Ikawa
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan.
| | - Mika Takenaka
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Yuta Sakai
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Toshihiro Fujiki
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Rie Kuroda
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hideaki Maeba
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
| | - Hiroaki Goto
- Division of Hematology/Oncology, Kanagawa Children's Medical Center, Kanagawa, Japan
| | - Toshiyuki Kitoh
- Laboratory of Pediatrics, School of Pharmacy, Aichi Gakuin University, Aichi, Japan
| | - Taizo Wada
- Department of Pediatrics, School of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa, 920-8641, Japan
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Shahana Kabeer S, Francis B, Vishnupriya S, Kattatheyil H, Joseph KJ, Krishnan KP, Mohamed Hatha AA. Characterization of L-asparaginase from Streptomyces koyangensis SK4 with acrylamide-minimizing potential in potato chips. Braz J Microbiol 2023; 54:1645-1654. [PMID: 37036659 PMCID: PMC10485229 DOI: 10.1007/s42770-023-00967-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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] [Received: 11/30/2022] [Accepted: 04/03/2023] [Indexed: 04/11/2023] Open
Abstract
Microbial L-asparaginase is well known for its application in food industries to reduce acrylamide content in fried starchy food. L-asparaginase produced by Arctic actinomycetes Streptomyces koyangensis SK4 was purified and studied for biochemical characterization. The L-asparaginase was purified with a yield of 15.49% and final specific activity of 179.77 IU/mg of protein. The enzyme exhibited a molecular weight of 43 kDa. The optimum pH and temperature for maximum activity of the purified enzyme were 8.5 °C and 40 °C, respectively. The enzyme expressed maximum activity at an incubation period of 30 min and a substrate concentration of 0.06 M. The enzyme has a low Km value of 0.041 M and excellent substrate specificity toward L-asparagine. The enzyme activity was inhibited by metal ions Ba2+ and Hg2+, while Mn2+ and Mg2+ enhanced the activity. The study evaluated the acrylamide reduction potential of L-asparaginase from Streptomyces koyangensis SK4 in potato chips. The blanching plus L-asparaginase treatment of potato slices resulted in a 50% reduction in acrylamide content. The study illustrated an effective acrylamide reduction strategy in potato chips using L-asparaginase from a psychrophilic actinomycete. Besides the acrylamide reduction potential, L-asparaginase from Streptomyces koyangensis SK4 also did not exhibit any glutaminase or urease activity which is an outstanding feature of L-asparaginase to be used as a chemotherapeutic agent.
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Affiliation(s)
- S Shahana Kabeer
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, Kerala, India.
| | - Bini Francis
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, Kerala, India
| | - S Vishnupriya
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, Kerala, India
| | - Hafsa Kattatheyil
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, Kerala, India
| | - K J Joseph
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, Kerala, India
| | - K P Krishnan
- National Centre for Polar and Ocean Research, Vasco da Gama, Goa, India
- CUSAT-NCPOR Centre for Polar Sciences, Cochin University of Science and Technology, Kochi, Kerala, India
| | - A A Mohamed Hatha
- Department of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University of Science and Technology, Kochi, Kerala, India
- CUSAT-NCPOR Centre for Polar Sciences, Cochin University of Science and Technology, Kochi, Kerala, India
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Zhang W, Dai Q, Huang Z, Xu W. Identification and Thermostability Modification of the Mesophilic L-asparaginase from Limosilactobacillus secaliphilus. Appl Biochem Biotechnol 2023:10.1007/s12010-023-04715-3. [PMID: 37656355 DOI: 10.1007/s12010-023-04715-3] [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] [Accepted: 08/16/2023] [Indexed: 09/02/2023]
Abstract
L-asparaginase (L-ASNase, E.C.3.5.1.1) could effectively inhibit the formation of acrylamide (AA) by hydrolyzing the AA precursor L-asparagine. However, most of the L-ASNases showed a relatively weak thermostability, posing a big threat on the application of enzyme at high processing temperatures. Here, the recombinant L-ASNase from mesophilic bacteria Limosilactobacillus secaliphilus was identified for the first time. The recombinant enzyme exhibited its optimal activity at pH 8.0 and 60 ℃. Additionally, the thermostability of L. secaliphilus L-ASNase was enhanced by site-directed mutagenesis after multiple sequence alignment. Ten mutants were reasonably constructed, among which the single-point mutants L24Y, S55T, and V155S showed more than 1 ℃ elevated Tm value compared to the wild-type enzyme. In addition, the half-life of mutant at 40, 50, and 55 ℃ was 376.7 min, 62.1 min, and 18.7 min, much higher than that of wild-type enzyme. The molecular dynamic simulation showed that compared to the wild-type enzyme, the structural stability of V155S was greatly strengthened due to the lower RMSF and RMSD value as well as a decreased total energy compared to that of the wild-type enzyme. The results were positive and provided some useful information for the thermostability modification of L-ASNase.
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Affiliation(s)
- Wenli Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China
| | - Quanyu Dai
- China Rural Technology Development Center, Beijing, 100045, People's Republic of China
| | - Zhaolin Huang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China
| | - Wei Xu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China.
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Parashiva J, Nuthan BR, Rakshith D, Santhosh CR, Narendra Kumar HK, Satish S. Insights into diversity and L-asparaginase activity of fungal endophytes associated with medicinal plant Grewia hirsuta. Braz J Microbiol 2023; 54:1573-1587. [PMID: 37480457 PMCID: PMC10484854 DOI: 10.1007/s42770-023-01045-8] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 06/19/2023] [Indexed: 07/24/2023] Open
Abstract
L-asparaginase is used as one of the prime chemotherapeutic agents to treat acute lymphoblastic leukemia. The present work aimed to study the endophytic fungal diversity of Grewia hirsuta and their ability to produce L-asparaginase. A total of 1575 culturable fungal endophytes belonging to four classes, Agaricomycetes, Dothideomycetes, Eurotiomycetes, and Sordariomycetes, were isolated. The isolates were grouped into twenty-one morphotypes based on their morphological characteristics. Representative species from each group were identified based on their microscopic characteristics and evaluation of the ITS and LSU rDNA sequences. Most of the fungal endophytes were recovered from the leaves compared to other plant parts. Diaporthe sp. was the predominant genus with a colonization frequency of 8.62%. Shannon-Wiener index for diversity ranged from 2.74 to 2.88. All the plant parts showed similar Simpson's index values, indicating a uniform species diversity. Among the sixty-three fungal endophytes screened, thirty-two were identified as L-asparaginase-producing isolates. The enzyme activities of fungal endophytes estimated by the nesslerization method were found to be in the range of 4.65-0.27 IU/mL with Fusarium foetens showing maximum enzyme activity of 4.65 IU/mL. This study for the first time advocates the production of L-asparaginase from Fusarium foetens along with the endophytic fungal community composition of Grewia hirsuta. The results indicate that the fungal endophyte Fusarium foetens isolated in the present study could be a potent source of L-asparaginase.
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Affiliation(s)
- Javaraiah Parashiva
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 006, India
| | - Bettadapura Rameshgowda Nuthan
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 006, India
- Department of Microbiology, Maharani's Science College for Women, Mysuru, Karnataka, 570 005, India
| | - Devaraju Rakshith
- Department of Microbiology, Yuvaraja's College, University of Mysore, Mysuru, Karnataka, 570 005, India
| | - Chandagalu Ramesh Santhosh
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 006, India
| | | | - Sreedharamurthy Satish
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 006, India.
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Ali AM, Adam H, Hailu D, Howe R, Abula T, Coenen MJH. Evaluating the Frequencies of CNOT3, GRIA1, NFATC2, and PNPLA3 Variant Alleles and Their Association with L-Asparaginase Hypersensitivity in Pediatric Acute Lymphoblastic Leukemia in Addis Ababa, Ethiopia. Appl Clin Genet 2023; 16:131-137. [PMID: 37551203 PMCID: PMC10404408 DOI: 10.2147/tacg.s404695] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 06/13/2023] [Indexed: 08/09/2023] Open
Abstract
Introduction L-asparaginase is a vital component for the treatment of childhood acute lymphoblastic leukemia (ALL); however, hypersensitivity reactions and hepatotoxicity hinder its anti-neoplastic efficacy. Previous reports indicated that genetic variants in CNOT3, GRIA1, and NFATC2 genes might be associated with hypersensitivity reactions and PNPLA3 with liver function. Objective In this study, it was investigated whether this association also exists in a pediatric ALL cohort from Ethiopia. Methods Three variants GRIA1 rs4958351, CNOT3 rs73062673, and NFATC2 rs6021191 were genotyped in a cohort of 160 patients. Association analysis to investigate the association with hypersensitivity reactions was performed using logistic regression analyses. Besides these variants, a variant in PNPLA3 (rs738409) was genotyped to assess the association with liver function. Results Genotype frequencies of GRIA1 rs4958351, CNOT3 rs73062673, and NFATC2 rs6021191 were higher/lower than previously reported. One hundred and forty-four patients were included in the association analysis of which, 18 (12.5%) developed L-ASP hypersensitivity. Though the frequency of hypersensitivity was higher in patients that carried the risk alleles of the three investigated genes, no statistically significant differences were observed. Association analysis between PNPLA3 rs738409 and liver function could not be investigated due to a lack of clinical information. Conclusion In conclusion, none of the tested genes did predict L-asparaginase hypersensitivity in an Ethiopian pediatric ALL patients.
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Affiliation(s)
- Awol Mekonnen Ali
- Department of Pharmacology and Clinical Pharmacy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Haileyesus Adam
- Department of Pediatrics and Child Health, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Daniel Hailu
- Department of Pediatrics and Child Health, School of Medicine, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Rawleigh Howe
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | - Teferra Abula
- Department of Pharmacology and Clinical Pharmacy, School of Pharmacy, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Marieke J H Coenen
- Department of Human Genetics, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
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Zhang S, Sun Y, Zhang L, Zhang F, Gao W. Thermoresponsive Polypeptide Fused L-Asparaginase with Mitigated Immunogenicity and Enhanced Efficacy in Treating Hematologic Malignancies. Adv Sci (Weinh) 2023; 10:e2300469. [PMID: 37271878 PMCID: PMC10427413 DOI: 10.1002/advs.202300469] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 05/17/2023] [Indexed: 06/06/2023]
Abstract
L-Asparaginase (ASP) is well-known for its excellent efficacy in treating hematological malignancies. Unfortunately, the intrinsic shortcomings of ASP, namely high immunogenicity, severe toxicity, short half-life, and poor stability, restrict its clinical usage. Poly(ethylene glycol) conjugation (PEGylation) of ASP is an effective strategy to address these issues, but it is not ideal in clinical applications due to complex chemical synthesis procedures, reduced ASP activity after conjugation, and pre-existing anti-PEG antibodies in humans. Herein, the authors genetically engineered an elastin-like polypeptide (ELP)-fused ASP (ASP-ELP), a core-shell structured tetramer predicted by AlphaFold2, to overcome the limitations of ASP and PEG-ASP. Notably, the unique thermosensitivity of ASP-ELP enables the in situ formation of a sustained-release depot post-injection with zero-order release kinetics over a long time. The in vitro and in vivo studies reveal that ASP-ELP possesses increased activity retention, improved stability, extended half-life, mitigated immunogenicity, reduced toxicity, and enhanced efficacy compared to ASP and PEG-ASP. Indeed, ASP-ELP treatment in leukemia or lymphoma mouse models of cell line-derived xenograft (CDX) shows potent anti-cancer effects with significantly prolonged survival. The findings also indicate that artificial intelligence (AI)-assisted genetic engineering is instructive in designing protein-polypeptide conjugates and may pave the way to develop next-generation biologics to enhance cancer treatment.
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Affiliation(s)
- Sanke Zhang
- Institute of Medical TechnologyPeking University Health Science CenterPeking University School and Hospital of StomatologyBiomedical Engineering DepartmentPeking UniversityPeking University International Cancer InstitutePeking University‐Yunnan Baiyao International Medical Research CenterBeijing100191China
| | - Yuanzi Sun
- Institute of Medical TechnologyPeking University Health Science CenterPeking University School and Hospital of StomatologyBiomedical Engineering DepartmentPeking UniversityPeking University International Cancer InstitutePeking University‐Yunnan Baiyao International Medical Research CenterBeijing100191China
| | - Longshuai Zhang
- Institute of Medical TechnologyPeking University Health Science CenterPeking University School and Hospital of StomatologyBiomedical Engineering DepartmentPeking UniversityPeking University International Cancer InstitutePeking University‐Yunnan Baiyao International Medical Research CenterBeijing100191China
| | - Fan Zhang
- Institute of Medical TechnologyPeking University Health Science CenterPeking University School and Hospital of StomatologyBiomedical Engineering DepartmentPeking UniversityPeking University International Cancer InstitutePeking University‐Yunnan Baiyao International Medical Research CenterBeijing100191China
| | - Weiping Gao
- Institute of Medical TechnologyPeking University Health Science CenterPeking University School and Hospital of StomatologyBiomedical Engineering DepartmentPeking UniversityPeking University International Cancer InstitutePeking University‐Yunnan Baiyao International Medical Research CenterBeijing100191China
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Parashiva J, Nuthan BR, Bharatha M, Praveen R, Tejashwini P, Satish S. Response surface methodology based optimized production, purification, and characterization of L-asparaginase from Fusarium foetens. World J Microbiol Biotechnol 2023; 39:252. [PMID: 37442849 DOI: 10.1007/s11274-023-03684-3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023]
Abstract
L-asparaginase is used as one of the prime chemotherapeutic agents to treat acute lymphoblastic leukemia. L-asparaginase obtained from bacteria exhibits hypersensitive reactions including various side effects. The present work aimed to optimize growth parameters for maximum production of L-asparaginase by Fusarium foetens through response surface methodology, its purification, and characterization. The optimization of L-asparaginase production by Fusarium foetens was initially done through a one-factor-at-a-time method. L-asparaginase production was further optimized using a central composite design based response surface methodology. The maximum L-asparaginase activity of 12.83 IU/ml was obtained under the following growth conditions; temperature-27.5 °C, pH-8, inoculum concentration-1.5 × 106 spores/ml, and incubation period-7 days. In comparison with the unoptimized growth conditions (4.58 IU/ml), the optimization led to a 2.65-fold increase in the L-asparaginase activity. The L-asparaginase from Fusarium foetens was purified 15.60-fold, with a yield of 39.89% using DEAE-cellulose column chromatography. After purification, the L-asparaginase activity was determined to be 127.26 IU/ml and the specific activity was found to be 231.38 IU/mg. The molecular mass was estimated to be approximately 37 kDa by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The purified enzyme showed optimum activity at pH 5, and a temperature of 40 °C. The enzyme showed 100% specificity towards L-asparagine and no activity towards L-glutamine. Its activity was enhanced by Mn2+, Fe2+, and Mg2, while it was inhibited by β-mercaptoethanol and EDTA. The Km and Vmax of the purified L-asparaginase were found to be 23.82 mM and 210.3 IU/ml respectively. The results suggest that Fusarium foetens could be a potent candidate for the bioprocessing of L-asparaginase at a large scale.
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Affiliation(s)
- Javaraiah Parashiva
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 006, India
| | | | - Madeva Bharatha
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 005, India
| | - Raju Praveen
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 005, India
| | - Purushotham Tejashwini
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 006, India
| | - Sreedharamurthy Satish
- Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysuru, Karnataka, 570 006, India.
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Lefin N, Miranda J, Beltrán JF, Belén LH, Effer B, Pessoa A, Farias JG, Zamorano M. Current state of molecular and metabolic strategies for the improvement of L-asparaginase expression in heterologous systems. Front Pharmacol 2023; 14:1208277. [PMID: 37426818 PMCID: PMC10323146 DOI: 10.3389/fphar.2023.1208277] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/12/2023] [Indexed: 07/11/2023] Open
Abstract
Heterologous expression of L-asparaginase (L-ASNase) has become an important area of research due to its clinical and food industry applications. This review provides a comprehensive overview of the molecular and metabolic strategies that can be used to optimize the expression of L-ASNase in heterologous systems. This article describes various approaches that have been employed to increase enzyme production, including the use of molecular tools, strain engineering, and in silico optimization. The review article highlights the critical role that rational design plays in achieving successful heterologous expression and underscores the challenges of large-scale production of L-ASNase, such as inadequate protein folding and the metabolic burden on host cells. Improved gene expression is shown to be achievable through the optimization of codon usage, synthetic promoters, transcription and translation regulation, and host strain improvement, among others. Additionally, this review provides a deep understanding of the enzymatic properties of L-ASNase and how this knowledge has been employed to enhance its properties and production. Finally, future trends in L-ASNase production, including the integration of CRISPR and machine learning tools are discussed. This work serves as a valuable resource for researchers looking to design effective heterologous expression systems for L-ASNase production as well as for enzymes production in general.
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Affiliation(s)
- Nicolás Lefin
- Department of Chemical Engineering, Science and Engineering Faculty, Universidad de La Frontera, Temuco, Chile
| | - Javiera Miranda
- Department of Chemical Engineering, Science and Engineering Faculty, Universidad de La Frontera, Temuco, Chile
| | - Jorge F. Beltrán
- Department of Chemical Engineering, Science and Engineering Faculty, Universidad de La Frontera, Temuco, Chile
| | - Lisandra Herrera Belén
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad Santo Tomas, Santiago, Chile
| | - Brian Effer
- Center of Excellence in Translational Medicine and Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
| | - Adalberto Pessoa
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Jorge G. Farias
- Department of Chemical Engineering, Science and Engineering Faculty, Universidad de La Frontera, Temuco, Chile
| | - Mauricio Zamorano
- Department of Chemical Engineering, Science and Engineering Faculty, Universidad de La Frontera, Temuco, Chile
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Dumina M, Zhdanov D, Zhgun A, Pokrovskaya M, Aleksandrova S, Veselovsky A, El’darov M. Enhancing the Catalytic Activity of Thermo-Asparaginase from Thermococcus sibiricus by a Double Mesophilic-like Mutation in the Substrate-Binding Region. Int J Mol Sci 2023; 24:9632. [PMID: 37298582 PMCID: PMC10253665 DOI: 10.3390/ijms24119632] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/27/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
L-asparaginases (L-ASNases) of microbial origin are the mainstay of blood cancer treatment. Numerous attempts have been performed for genetic improvement of the main properties of these enzymes. The substrate-binding Ser residue is highly conserved in L-ASNases regardless of their origin or type. However, the residues adjacent to the substrate-binding Ser differ between mesophilic and thermophilic L-ASNases. Based on our suggestion that the triad, including substrate-binding Ser, either GSQ for meso-ASNase or DST for thermo-ASNase, is tuned for efficient substrate binding, we constructed a double mutant of thermophilic L-ASNase from Thermococcus sibiricus (TsA) with a mesophilic-like GSQ combination. In this study, the conjoint substitution of two residues adjacent to the substrate-binding Ser55 resulted in a significant increase in the activity of the double mutant, reaching 240% of the wild-type enzyme activity at the optimum temperature of 90 °C. The mesophilic-like GSQ combination in the rigid structure of the thermophilic L-ASNase appears to be more efficient in balancing substrate binding and conformational flexibility of the enzyme. Along with increased activity, the TsA D54G/T56Q double mutant exhibited enhanced cytotoxic activity against cancer cell lines with IC90 values from 2.8- to 7.4-fold lower than that of the wild-type enzyme.
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Affiliation(s)
- Maria Dumina
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, 117312 Moscow, Russia; (D.Z.); (A.Z.)
| | - Dmitry Zhdanov
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, 117312 Moscow, Russia; (D.Z.); (A.Z.)
- Institute of Biomedical Chemistry, 119121 Moscow, Russia (A.V.)
| | - Alexander Zhgun
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, 117312 Moscow, Russia; (D.Z.); (A.Z.)
| | | | | | | | - Michael El’darov
- Federal Research Center “Fundamentals of Biotechnology” of the Russian Academy of Sciences, 117312 Moscow, Russia; (D.Z.); (A.Z.)
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Nguyen TN, Do TP, Nguyen TC, Trieu HP, Nguyen TGA, Do TT. Cinchonain Ia Shows Promising Antitumor Effects in Combination with L-Asparaginase-Loaded Nanoliposomes. Pharmaceutics 2023; 15:pharmaceutics15051537. [PMID: 37242779 DOI: 10.3390/pharmaceutics15051537] [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: 04/19/2023] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Cancer is among the leading causes of death worldwide, with no effective and safe treatment to date. This study is the first to co-conjugate the natural compound cinchonain Ia, which has promising anti-inflammatory activity, and L-asparaginase (ASNase), which has anticancer potential, to manufacture nanoliposomal particles (CALs). The CAL nanoliposomal complex had a mean size of approximately 118.7 nm, a zeta potential of -47.00 mV, and a polydispersity index (PDI) of 0.120. ASNase and cinchonain Ia were encapsulated into liposomes with approximately 93.75% and 98.53% efficiency, respectively. The CAL complex presented strong synergistic anticancer potency, with a combination index (CI) < 0.32 in two-dimensional culture and 0.44 in a three-dimensional model, as tested on NTERA-2 cancer stem cells. Importantly, the CAL nanoparticles demonstrated outstanding antiproliferative efficiency on cell growth in NTERA-2 cell spheroids, with greater than 30- and 2.5-fold increases in cytotoxic activity compared to either cinchonain Ia or ASNase liposomes, respectively. CALs also presented extremely enhanced antitumor effects, reaching approximately 62.49% tumor growth inhibition. Tumorized mice under CALs treatment showed a survival rate of 100%, compared to 31.2% in the untreated control group (p < 0.01), after 28 days of the experiment. Thus, CALs may represent an effective material for anticancer drug development.
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Affiliation(s)
- Thi Nga Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi 100000, Vietnam
| | - Thi Phuong Do
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi 100000, Vietnam
| | - Thi Cuc Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi 100000, Vietnam
| | - Ha Phuong Trieu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi 100000, Vietnam
| | - Thi Giang An Nguyen
- Faculty of Biology, College of Education, Vinh University, 182 Le Duan St., Vinh City 460000, Vietnam
| | - Thi Thao Do
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi 100000, Vietnam
- Vietnam Academy of Science and Technology, Graduate University of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 100000, Vietnam
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Talluri VP, Mutaliyeva B, Sharipova A, Ulaganathan V, Lanka SS, Aidarova S, Suigenbayeva A, Tleuova A. L-Asparaginase delivery systems targeted to minimize its side-effects. Adv Colloid Interface Sci 2023; 316:102915. [PMID: 37159987 DOI: 10.1016/j.cis.2023.102915] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 11/07/2022] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/11/2023]
Abstract
L-asparaginase (L-ASP) is one of the key enzymes used in therapeutic applications, particularly to treat Acute Lymphocytic Leukemia (ALL). L-asparagine is a non-essential amino acid, which means that it can be synthesized by the body and is not required to be obtained through the diet. The synthesis of L-asparagine occurs primarily in the liver, but it also takes place in other tissues throughout the body. In contrast, leukemic cells cannot synthesize L-asparagine due the absence of L-asparagine synthetase and should obtain it from circulating sources for protein synthesis and cell division processes to ensure their vital functions. L-ASP catalyzes the deamination process of L-asparagine amino-acid into aspartic acid and ammonia, depriving leukemic cells of asparagine. This leads to decreased protein synthesis and cell division in tumor cells. However, using L-ASP has side effects, such as hypersensitivity or allergic reaction, antigenicity, short half-life, temporary blood clearance, and toxicity. L-ASP immobilization can minimize the side effects of L-ASP by stopping the immune system from attacking non-human enzymes and improving the enzyme's performance. The first strategy includes modification of enzyme structure, such as covalent binding (conjugation), adsorption to the support material and cross-linking of the enzyme. The chemical modification of residues, often nonspecific, changes the enzyme's hydrophobicity and surface charge, lowering the enzyme's activity. Also, the first strategy exposes the enzyme's surface to the environment. This eliminates its performance and does not allow targeted delivery of the enzyme. The second strategy is based on the entrapment of the enzyme inside the protecting structure or encapsulation. This strategy offers the same benefits as the first. Still, it also enables reducing toxicity, prolonging in vivo half-life, enhancing stability and activity, enables a targeted delivery and controlled release of the enzyme. Compared to the first strategy, encapsulation does not modify the chemical structure of the enzyme since L-ASP is only effective against leukemia in its native tetrameric form. This review aims to present state of the art in L-ASP formulations developed for reducing the side effects of L-ASP, focusing on describing improvements in their safety. The primary focus in the field remains to be improving the overall performance of the L-ASP formulations. Almost all encapsulation systems allow reducing immune response due to screening the enzyme from antibodies and prolonging its half-life. However, the enzyme's activity and stability depend on the encapsulation system type. Therefore, the selection of the right encapsulation system is crucial in therapy due to its effect on the performance parameters of the L-ASP. Biodegradable and biocompatible materials, such as chitosan, alginate and liposomes, mainly attract the researcher's interest in enzyme encapsulation. The research trends are also moving towards developing formulations with targeted delivery and increased selectivity.
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Affiliation(s)
| | | | | | | | - Sri Santhi Lanka
- Gandhi Institute of Technology and Management (GITAM) University, Visakhapatnam 530045, Andhra Pradesh, India
| | - Saule Aidarova
- Kazakh-British Technical University, Almaty 050005, Kazakhstan
| | | | - Aiym Tleuova
- M. Auezov South Kazakhstan University, Shymkent 160012, Kazakhstan.
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Janicki M, Ściuk A, Zielezinski A, Ruszkowski M, Ludwików A, Karlowski WM, Jaskolski M, Loch JI. The effects of nature-inspired amino acid substitutions on structural and biochemical properties of the E. coli L-asparaginase EcAIII. Protein Sci 2023; 32:e4647. [PMID: 37095066 DOI: 10.1002/pro.4647] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/31/2023] [Accepted: 04/20/2023] [Indexed: 04/26/2023]
Abstract
The Escherichia coli enzyme EcAIII catalyzes the hydrolysis of L-Asn to L-Asp and ammonia. Using a nature-inspired mutagenesis approach, we designed and produced five new EcAIII variants (M200I, M200L, M200K, M200T, M200W). The modified proteins were characterized by spectroscopic and crystallographic methods. All new variants were enzymatically active, confirming that the applied mutagenesis procedure has been successful. The determined crystal structures revealed new conformational states of the EcAIII molecule carrying the M200W mutation and allowed a high-resolution observation of an acyl-enzyme intermediate with the M200L mutant. In addition, we performed structure prediction, substrate docking, and molecular dynamics simulations for 25 selected bacterial orthologs of EcAIII, to gain insights into how mutations at the M200 residue affect the active site and substrate binding mode. This comprehensive strategy, including both experimental and computational methods, can be used to guide further enzyme engineering and can be applied to the study of other proteins of medicinal or biotechnological importance. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Maciej Janicki
- Department of Biotechnology, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Anna Ściuk
- Department of Crystal Chemistry and Crystal Physics, Faculty of Chemistry, Jagiellonian University, Krakow, Poland
| | - Andrzej Zielezinski
- Department of Computational Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Milosz Ruszkowski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland
| | - Agnieszka Ludwików
- Department of Biotechnology, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Wojciech M Karlowski
- Department of Computational Biology, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland
| | - Mariusz Jaskolski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland
- Department of Crystallography, Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poland
| | - Joanna I Loch
- Department of Crystal Chemistry and Crystal Physics, Faculty of Chemistry, Jagiellonian University, Krakow, Poland
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Pedroso A, Herrera Belén L, Beltrán JF, Castillo RL, Pessoa A, Pedroso E, Farías JG. In Silico Design of a Chimeric Humanized L-asparaginase. Int J Mol Sci 2023; 24:ijms24087550. [PMID: 37108713 PMCID: PMC10144303 DOI: 10.3390/ijms24087550] [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: 02/03/2023] [Revised: 04/13/2023] [Accepted: 04/15/2023] [Indexed: 04/29/2023] Open
Abstract
Acute lymphoblastic leukemia (ALL) is the most common cancer among children worldwide, characterized by an overproduction of undifferentiated lymphoblasts in the bone marrow. The treatment of choice for this disease is the enzyme L-asparaginase (ASNase) from bacterial sources. ASNase hydrolyzes circulating L-asparagine in plasma, leading to starvation of leukemic cells. The ASNase formulations of E. coli and E. chrysanthemi present notorious adverse effects, especially the immunogenicity they generate, which undermine both their effectiveness as drugs and patient safety. In this study, we developed a humanized chimeric enzyme from E. coli L-asparaginase which would reduce the immunological problems associated with current L-asparaginase therapy. For these, the immunogenic epitopes of E. coli L-asparaginase (PDB: 3ECA) were determined and replaced with those of the less immunogenic Homo sapiens asparaginase (PDB:4O0H). The structures were modeled using the Pymol software and the chimeric enzyme was modeled using the SWISS-MODEL service. A humanized chimeric enzyme with four subunits similar to the template structure was obtained, and the presence of asparaginase enzymatic activity was predicted by protein-ligand docking.
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Affiliation(s)
- Alejandro Pedroso
- Department of Chemical Engineering, Faculty of Engineering and Science, Universidad de La Frontera, Temuco 4811230, Chile
| | - Lisandra Herrera Belén
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad Santo Tomas, Avenida Carlos Schorr 255, Talca 3460000, Chile
| | - Jorge F Beltrán
- Department of Chemical Engineering, Faculty of Engineering and Science, Universidad de La Frontera, Temuco 4811230, Chile
| | - Rodrigo L Castillo
- Department of Internal Medicine, East Division, Faculty of Medicine, University of Chile, Santiago 7500922, Chile
| | - Adalberto Pessoa
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
| | - Enrique Pedroso
- Department of Family Medicine, Faculty of Medicine, University of Medical Sciences Matanzas, Matanzas 42300, Cuba
| | - Jorge G Farías
- Department of Chemical Engineering, Faculty of Engineering and Science, Universidad de La Frontera, Temuco 4811230, Chile
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Rincón Reyes DF, Padilla Agudelo JL, Pinilla da Silva AI, Ortega Quintero DM, Valencia Libreros DL, Contreras Acosta AD, Gutiérrez Triana JA. An acute lymphoblastic leukemia cell-based preclinical assay revealed functional differences between commercial brands of L-asparaginase administered in Colombia. Pediatr Blood Cancer 2023; 70:e30199. [PMID: 36633223 DOI: 10.1002/pbc.30199] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/29/2022] [Accepted: 12/19/2022] [Indexed: 01/13/2023]
Abstract
BACKGROUND L-asparaginase (L-ASNase) is an essential component of chemotherapy strategies due to its differential action between normal and leukemic cells. Recently, concerns about the efficiency of commercial formulations administered in developing countries have been reported, and available methods have limitations for directly determining the quality of the formulation of the medications. PROCEDURE We developed a cell-based protocol to analyze the activity of different L-ASNase formulations used in Colombia to induce apoptosis of the NALM-6 cell line after 24, 48, and 72 hours, using flow cytometry. Then we compared results and determined the statistically significant differences. RESULTS Three statistically different groups, ranging from full to no activity against leukemic cells, using 0.05, 0.5, and 5.0 IU/ml concentrations, were identified. Group 1 (asparaginase codified [ASA]2-4) exhibited very low to no activity against B-cell acute lymphoblastic leukemia (B-ALL) cells. Group 2 (ASA6) exhibited intermediate-level activity, and group 3 (ASA1 and ASA5) exhibited high activity. CONCLUSIONS Differences found between the therapeutic formulations of L-ASNase distributed in Colombia raise concerns about the quality of the treatment administered to patients in low- and middle-income countries. Therefore, we recommend a preclinical evaluation of formulations of L-ASNase in order to prevent therapeutical impacts on the outcome of ALL patients.
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Affiliation(s)
- Diego Fernando Rincón Reyes
- Immunology and Molecular Epidemiology Research Group (GIEM), Escuela de Microbiología, Facultad de Salud, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - José Luis Padilla Agudelo
- Immunology and Molecular Epidemiology Research Group (GIEM), Escuela de Microbiología, Facultad de Salud, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Andrea Isabel Pinilla da Silva
- Immunology and Molecular Epidemiology Research Group (GIEM), Escuela de Microbiología, Facultad de Salud, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Diana Marcela Ortega Quintero
- Immunology and Molecular Epidemiology Research Group (GIEM), Escuela de Microbiología, Facultad de Salud, Universidad Industrial de Santander, Bucaramanga, Colombia.,Clinical Laboratory, Universidad Industrial de Santander, Bucaramanga, Colombia
| | | | | | - José Arturo Gutiérrez Triana
- Immunology and Molecular Epidemiology Research Group (GIEM), Escuela de Microbiología, Facultad de Salud, Universidad Industrial de Santander, Bucaramanga, Colombia
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Zhang Y, Sultonova RD, You SH, Choi Y, Kim SY, Lee WS, Seong J, Min JJ, Hong Y. The anticancer effect of PASylated calreticulin-targeting L-ASNase in solid tumor bearing mice with immunogenic cell death-inducing chemotherapy. Biochem Pharmacol 2023; 210:115473. [PMID: 36863616 DOI: 10.1016/j.bcp.2023.115473] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 02/03/2023] [Accepted: 02/24/2023] [Indexed: 03/04/2023]
Abstract
L-Asparaginase (L-ASNase), a bacterial enzyme that degrades asparagine, has been commonly used in combination with several chemical drugs to treat malignant hematopoietic cancers such as acute lymphoblastic leukemia (ALL). In contrast, the enzyme was known to inhibit the growth of solid tumor cells in vitro, but not to be effective in vivo. We previously reported that two novel monobodies (CRT3 and CRT4) bound specifically with calreticulin (CRT) exposed on tumor cells and tissues during immunogenic cell death (ICD). Here, we engineered L-ASNases conjugated with monobodies at the N-termini and PAS200 tags at the C-termini (CRT3LP and CRT4LP). These proteins were expected to possess four monobody and PAS200 tag moieties, which did not disrupt the L-ASNase conformation. These proteins were expressed 3.8-fold more highly in E. coli than those without PASylation. The purified proteins were highly soluble, with much greater apparent molecular weights than expected ones. Their affinity (Kd) against CRT was about 2 nM, 4-fold higher than that of monobodies. Their enzyme activity (∼6.5 IU/nmol) was similar to that of L-ASNase (∼7.2 IU/nmol), and their thermal stability was significantly increased at 55 °C. Their half-life times were > 9 h in mouse sera, about 5-fold longer than that of L-ASNase (∼1.8 h). Moreover, CRT3LP and CRT4LP bound specifically with CRT exposed on tumor cells in vitro, and additively suppressed the tumor growth in CT-26 and MC-38 tumor-bearing mice treated with ICD-inducing drugs (doxorubicin and mitoxantrone) but not with a non-ICD-inducing drug (gemcitabine). All data indicated that PASylated CRT-targeted L-ASNases enhanced the anticancer efficacy of ICD-inducing chemotherapy. Taken together, L-ASNase would be a potential anticancer drug for treating solid tumors.
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Affiliation(s)
- Ying Zhang
- Institute for Molecular Imaging and Theranostics, Department of Nuclear Medicine, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Republic of Korea
| | - Rukhsora D Sultonova
- Institute for Molecular Imaging and Theranostics, Department of Nuclear Medicine, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Republic of Korea
| | - Sung-Hwan You
- Institute for Molecular Imaging and Theranostics, Department of Nuclear Medicine, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Republic of Korea
| | - Yoonjoo Choi
- Combinatorial Tumor Immunotherapy MRC, Chonnam National University Medical School, Hwasun, Republic of Korea
| | - So-Young Kim
- Institute for Molecular Imaging and Theranostics, Department of Nuclear Medicine, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Republic of Korea
| | - Wan-Sik Lee
- Department of Internal Medicine, Chonnam National University Medical School, Hwasun, Republic of Korea
| | - Jihyoun Seong
- Institute for Molecular Imaging and Theranostics, Department of Nuclear Medicine, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Republic of Korea; Department of Microbiology, Chonnam National University Medical School, Hwasun, Republic of Korea
| | - Jung-Joon Min
- Institute for Molecular Imaging and Theranostics, Department of Nuclear Medicine, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Republic of Korea.
| | - Yeongjin Hong
- Institute for Molecular Imaging and Theranostics, Department of Nuclear Medicine, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Republic of Korea; Department of Microbiology, Chonnam National University Medical School, Hwasun, Republic of Korea.
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Wu W, Ren K, Chen X, Li N, Luo Q, Hai T, Zhou H, Zou L. Comparison of the clinical efficacies of two L-asparaginase-based chemotherapy regimens for newly diagnosed nasal-type extranodal NK/T-cell lymphoma. Cancer Med 2023; 12:9458-9470. [PMID: 37000008 PMCID: PMC10166983 DOI: 10.1002/cam4.5708] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 02/03/2023] [Accepted: 02/08/2023] [Indexed: 04/01/2023] Open
Abstract
BACKGROUND Nasal-type extranodal natural killer (NK)/T cell lymphoma (ENKTL) is a rare and aggressive type of lymphoma. The optimal chemotherapy regimen for ENKTL has not yet been established. In this study, we compared the LVDP (L-asparaginase, etoposide, dexamethasone, and cisplatin) and GLIDE (gemcitabine, L-asparaginase, ifosfamide, dexamethasone, and etoposide) chemotherapy regimens for the treatment of ENKTL. METHODS A total of 267 patients with newly diagnosed ENKTL were included in this retrospective study. Propensity score matching (PSM) was used to adjust for confounders between the LVDP and GLIDE groups. Treatment responses, survival outcomes, and toxicities between the two groups were compared before and after PSM. RESULTS At the end of therapy, the objective response rate (ORR) and complete response (CR) were 83.5% and 62.2%, respectively, for all patients. The ORR and CR were 85.5% and 62.2% for the LVDP group compared with 79.3% and 62.2% for the GLIDE group, respectively, and no differences between the two groups were found (ORR, p = 0.212; CR, p = 0.996). With a median 71 months follow-up, the 5-year progression-free survival (PFS) and overall survival (OS) rates were 64.3% and 68.5%, respectively. The 5-year PFS and OS were 65.6% and 70.1% for the LVDP group compared with 61.6% and 64.6% for the GLIDE group, respectively (PFS, p = 0.478; OS, p = 0162). After PSM, no significant differences in short-term efficacy (ORR, p = 0.696; CR, p = 0.264) or long-term efficacy (PFS, p = 0.794; OS, p = 0.867) between the two groups were identified. However, treatment-related toxicities were milder in the LVDP group compared to the GLIDE group, even after adjusting for confounders via PSM. CONCLUSION In conclusion, both LVDP and GLIDE regimens are effective for the treatment of ENKTL. However, the LVDP regimen is safer than the GLIDE regimen, with milder treatment-related toxicities. Therefore, the LVDP regimen could be a preferable option for patients with ENKTL.
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Affiliation(s)
- Wanchun Wu
- Department of Medical Oncology of Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Kexin Ren
- Department of Medical Oncology of Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xi Chen
- Department of Medical Oncology of Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Na Li
- Department of Medical Oncology of Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Qian Luo
- Department of Medical Oncology of Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Hai
- Department of Medical Oncology of Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Huijie Zhou
- Department of Medical Oncology of Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Liqun Zou
- Department of Medical Oncology of Cancer Center, West China Hospital, Sichuan University, Chengdu, China
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Yang X, Rao Y, Zhang M, Wang J, Liu W, Cai D, Chen S. [Efficient production of L-asparaginase in Bacillus licheniformis by optimizing expression elements and host]. Sheng Wu Gong Cheng Xue Bao 2023; 39:1096-1106. [PMID: 36994574 DOI: 10.13345/j.cjb.220642] [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] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
L-asparaginase (L-ASN) is widely applied in the treatment of malignant tumor and low-acrylamide food production, however, the low expression level hampers its application. Heterologous expression is an effective strategy to increase the expression level of target enzymes, and Bacillus is generally used as the host for efficient production of enzymes. In this study, the expression level of L-asparaginase in Bacillus was enhanced through optimization of expression element and host. Firstly, five signal peptides (SPSacC, SPAmyL, SPAprE, SPYwbN and SPWapA) were screened, among which SPSacC showed the best performance, reaching an activity of 157.61 U/mL. Subsequently, four strong promoters (P43, PykzA-P43, PUbay and PbacA) from Bacillus were screened, and tandem promoter PykzA-P43 showed the highest yield of L-asparaginase, which was 52.94% higher than that of control strain. Finally, three Bacillus expression hosts (B. licheniformis Δ0F3 and BL10, B. subtilis WB800) were investigated, and the maximum L-asparaginase activity, 438.3 U/mL, was reached by B. licheniformis BL10, which was an 81.83% increase compared with that of the control. This is also the highest level of L-asparaginase in shake flask reported to date. Taken together, this study constructed a B. licheniformis strain BL10/PykzA-P43-SPSacC-ansZ capable of efficiently producing L-asparaginase, which laid the foundation for industrial production of L-asparaginase.
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Affiliation(s)
- Xinyuan Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, Hubei, China
| | - Yi Rao
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, Hubei, China
| | - Mengxi Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, Hubei, China
| | - Jiaqi Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, Hubei, China
| | - Wenyuan Liu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, Hubei, China
| | - Dongbo Cai
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, Hubei, China
| | - Shouwen Chen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Environmental Microbial Technology Center of Hubei Province, College of Life Sciences, Hubei University, Wuhan 430062, Hubei, China
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Lee SHR, Li Z, Lim EHZ, Chin WHN, Jiang N, Chiew KH, Chen Z, Oh BLZ, Tan AM, Ariffin H, Yang JJ, Yeoh AEJ. Associations of T-Cell Receptor Repertoire Diversity with L-Asparaginase Allergy in Childhood Acute Lymphoblastic Leukemia. Cancers (Basel) 2023; 15:cancers15061829. [PMID: 36980715 PMCID: PMC10047007 DOI: 10.3390/cancers15061829] [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: 02/03/2023] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 03/30/2023] Open
Abstract
Asparaginase is a critical component of therapy for childhood acute lymphoblastic leukemia (ALL), but it is commonly associated with allergy, which results in morbidity and poorer outcomes. The underlying basis of this allergy is undoubtedly immune-mediated, but the exact components of T-cell immunity have yet to be characterized. We performed longitudinal TCR sequencing of 180 bone marrow samples from 67 children with B-ALL treated as part of the Ma-Spore-ALL-2010 trial, and we evaluated the associations of TCR profile with asparaginase hypersensitivity, with functional validation of asparaginase activity in a separate cohort of 113 children. We found that a more diverse and dynamically changing TCR repertoire was associated with increased risk of clinical hypersensitivity and decreased L-asp activity. Allergic patients had a higher proportion of infrequent clonotypes, as well as a significantly lower degree of shared clonotypes amongst the cohort. Allergic patients also had significantly higher longitudinal variability of clonotypes across timepoints, where a higher dissimilarity between diagnosis and week 5 represented an 8.1-fold increased risk of an allergic event. After an allergy had occurred, there was shaping and convergence of the TCR repertoire towards a common antigen. Understanding the immunological basis of T-cell responses in allergy lays the groundwork for developing predictive biomarkers or strategies to mediate this common toxicity in childhood ALL.
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Affiliation(s)
- Shawn H R Lee
- Department of Pharmaceutical Sciences, St Jude Children's Research Hospital, Memphis, TN 38105, USA
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, 1E Lower Kent Ridge Road, Tower Block Level 12, Singapore 119228, Singapore
- Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore 119074, Singapore
| | - Zhenhua Li
- Department of Pharmaceutical Sciences, St Jude Children's Research Hospital, Memphis, TN 38105, USA
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, 1E Lower Kent Ridge Road, Tower Block Level 12, Singapore 119228, Singapore
| | - Evelyn H Z Lim
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, 1E Lower Kent Ridge Road, Tower Block Level 12, Singapore 119228, Singapore
| | - Winnie H N Chin
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, 1E Lower Kent Ridge Road, Tower Block Level 12, Singapore 119228, Singapore
| | - Nan Jiang
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, 1E Lower Kent Ridge Road, Tower Block Level 12, Singapore 119228, Singapore
| | - Kean Hui Chiew
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, 1E Lower Kent Ridge Road, Tower Block Level 12, Singapore 119228, Singapore
| | - Zhiwei Chen
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, 1E Lower Kent Ridge Road, Tower Block Level 12, Singapore 119228, Singapore
| | - Bernice L Z Oh
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, 1E Lower Kent Ridge Road, Tower Block Level 12, Singapore 119228, Singapore
- Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore 119074, Singapore
| | - Ah Moy Tan
- Department of Pediatrics, KK Women and Children's Hospital, Singapore 229899, Singapore
| | - Hany Ariffin
- Department of Pediatrics, University of Malaya Medical Centre, Kuala Lumpur 59100, Malaysia
| | - Jun J Yang
- Department of Pharmaceutical Sciences, St Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Allen E J Yeoh
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, 1E Lower Kent Ridge Road, Tower Block Level 12, Singapore 119228, Singapore
- Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore 119074, Singapore
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49
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Monajati M, Tamaddon AM, Abolmaali SS, Yousefi G, Javanmardi S, Borandeh S, Heidari R, Azarpira N, Dinarvand R. L-asparaginase immobilization in supramolecular nanogels of PEG-grafted poly HPMA and bis(α-cyclodextrin) to enhance pharmacokinetics and lower enzyme antigenicity. Colloids Surf B Biointerfaces 2023; 225:113234. [PMID: 36934612 DOI: 10.1016/j.colsurfb.2023.113234] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 02/17/2023] [Accepted: 02/27/2023] [Indexed: 03/05/2023]
Abstract
L-asparaginase (ASNase) enzyme has limited therapeutic use due to its poor pharmacokinetics and immunogenicity. To overcome these obstacles, we immobilized ASNase in biocompatible poly hydroxypropyl methacrylamide (P(HPMA))-based nanogels simply formed through the host-guest inclusion complex of ASNase-conjugated random copolymer of HPMA and polyethylene glycol (PEG) acrylate (P(HPMA-MPEGA)) and α-cyclodextrin dimer (bisCD) using cystamine as a linker. The effects of bisCD and polymer concentrations on particle size, gelation time, and recovery of enzyme activity were investigated. The ASNase-conjugated bisCD nanogels were discrete, homogeneous, and spherical with a mean projected diameter of 148 ± 41 nm. ASNase immobilized in the bisCD nanogels caused cytotoxicity on HL-60 cell line with IC50 of 3 IU/ml. In-vivo rat study revealed that the immobilized ASNase reduced the enzyme antigenicity and resulted in 8.1 folds longer circulation half-life than the native enzyme. Conclusively, immobilization of ASNase in P(HPMA-MPEGA) and bisCD supramolecular nanogels could enhance the therapeutic value of ASNase in cancer chemotherapy.
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Affiliation(s)
- Maryam Monajati
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran; Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran
| | - Ali Mohammad Tamaddon
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran; Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran; Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran.
| | - Samira Sadat Abolmaali
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran; Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran
| | - Gholamhossein Yousefi
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran; Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran
| | - Sanaz Javanmardi
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran
| | - Sedigheh Borandeh
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran
| | - Reza Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran
| | - Negar Azarpira
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, the Islamic Republic of Iran
| | - Rassoul Dinarvand
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 1417614315, the Islamic Republic of Iran.
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50
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Gladilina YA, Shishparenok AN, Zhdanov DD. [Approaches for improving L-asparaginase expression in heterologous systems]. Biomed Khim 2023; 69:19-38. [PMID: 36857424 DOI: 10.18097/pbmc20236901019] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
L-asparaginase (EC 3.5.1.1) is one of the most demanded enzymes used in the pharmaceutical industry as a drug and in the food industry to prevent the formation of toxic acrylamide. Researchers aimed to improve specific activity and reduce side effects to create safer and more potent enzyme products. However, protein modifications and heterologous expression remain problematic in the production of asparaginases from different species. Heterologous expression in optimized producer strains is rationally organized; therefore, modified and heterologous protein expression is enhanced, which is the main strategy in the production of asparaginase. This strategy solves several problems: incorrect protein folding, metabolic load on the producer strain and codon misreading, which affects translation and final protein domains, leading to a decrease in catalytic activity. The main approaches developed to improve the heterologous expression of L-asparaginases are considered in this paper.
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Affiliation(s)
| | | | - D D Zhdanov
- Institute of Biomedical Chemistry, Moscow, Russia
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