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Roberge CL, Miceli RT, Murphy LR, Kingsley DM, Gross RA, Corr DT. Sophorolipid Candidates Demonstrate Cytotoxic Efficacy against 2D and 3D Breast Cancer Models. J Nat Prod 2023; 86:1159-1170. [PMID: 37104545 PMCID: PMC10760934 DOI: 10.1021/acs.jnatprod.2c00804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Sophorolipids are biosurfactants derived from the nonpathogenic yeasts such as Starmerella bombicola with potential efficacy in anticancer applications. Simple and cost-effective synthesis of these drugs makes them a promising alternative to traditional chemotherapeutics, pending their success in preliminary drug-screening. Drug-screening typically utilizes 2D cell monolayers due to their simplicity and ease of high-throughput assessment. However, 2D assays fail to capture the complexity and 3D context of the tumor microenvironment and have consequently been implicated in the high percentage of drugs investigated in vitro that later fail in clinical trials. Herein, we screened two sophorolipid candidates and a clinically-used chemotherapeutic, doxorubicin, on in vitro breast cancer models ranging from 2D monolayers to 3D spheroids, employing optical coherence tomography to confirm these morphologies. We calculated corresponding IC50 values for these drugs and found one of the sophorolipids to have comparable toxicities to the chemotherapeutic control. Our findings show increased drug resistance associated with model dimensionality, such that all drugs tested showed that 3D spheroids exhibited higher IC50 values than their 2D counterparts. These findings demonstrate promising preliminary data to support the use of sophorolipids as a more affordable alternative to traditional clinical interventions and demonstrate the importance of 3D tumor models in assessing drug response.
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Affiliation(s)
- Cassandra L Roberge
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Rebecca T Miceli
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Center for Biotechnology and Interdisciplinary Sciences, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Lillian R Murphy
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - David M Kingsley
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Richard A Gross
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Center for Biotechnology and Interdisciplinary Sciences, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - David T Corr
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
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2
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Miceli R, Totsingan F, Naina T, Islam S, Dordick JS, Corr DT, Gross RA. Molecularly Engineered Surfactin Analogues Induce Nonapoptotic-Like Cell Death and Increased Selectivity in Multiple Breast Cancer Cell Types. ACS Omega 2023; 8:14610-14620. [PMID: 37125141 PMCID: PMC10134466 DOI: 10.1021/acsomega.3c00454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 03/01/2023] [Indexed: 05/03/2023]
Abstract
Surfactin, a negatively charged amphiphilic lipopeptide biosurfactant, is synthesized by the bacterium Bacillus subtilis. It consists of a cyclic heptapeptide and an 11-15C β-hydroxy fatty acid. To probe how the modification of the molecular skeleton of surfactin influences its selectivity and activity against breast cancer, six synthetic surfactins were generated. Modifications were accomplished by conjugating amine-functionalized molecules to the Glu and Asp carboxyl moieties of the heptapeptide. The resulting synthetic surfactins provided a diverse series of molecules with differences in charge, size, and hydrophilicity. After purification and structural analysis, insights into biological activity and specificity were generated for each compound. Dose-dependent growth inhibition was determined for four tumorigenic breast cancer cell lines in monolayer and spheroid morphologies, as well as nontumorigenic fibroblasts and sheep erythrocytes, which were utilized to determine selectivity indices. Results indicated that two compounds, which have amplified anionic charge, had increased activity on breast cancer, with reduced activity on nontumorigenic fibroblasts and erythrocytes. Cationic derivative surf-ethylenediamine has increased activity on all cell lines tested. Novel correlations between dose-response activities and physicochemical properties of all compounds determined that there is a significant correlation between the critical micelle concentration and activity against multiple cell lines.
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Affiliation(s)
- Rebecca
T. Miceli
- Center
for Biotechnology and Interdisciplinary Sciences, Department of Chemistry
and Chemical Biology, Department of Biomedical Engineering, Department of Chemical and Biological
Engineering, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, United States
| | - Filbert Totsingan
- Center
for Biotechnology and Interdisciplinary Sciences, Department of Chemistry
and Chemical Biology, Department of Biomedical Engineering, Department of Chemical and Biological
Engineering, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, United States
| | - Tasnim Naina
- Center
for Biotechnology and Interdisciplinary Sciences, Department of Chemistry
and Chemical Biology, Department of Biomedical Engineering, Department of Chemical and Biological
Engineering, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, United States
| | - Samita Islam
- Center
for Biotechnology and Interdisciplinary Sciences, Department of Chemistry
and Chemical Biology, Department of Biomedical Engineering, Department of Chemical and Biological
Engineering, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, United States
| | - Jonathan S. Dordick
- Center
for Biotechnology and Interdisciplinary Sciences, Department of Chemistry
and Chemical Biology, Department of Biomedical Engineering, Department of Chemical and Biological
Engineering, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, United States
| | - David T. Corr
- Center
for Biotechnology and Interdisciplinary Sciences, Department of Chemistry
and Chemical Biology, Department of Biomedical Engineering, Department of Chemical and Biological
Engineering, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, United States
| | - Richard A. Gross
- Center
for Biotechnology and Interdisciplinary Sciences, Department of Chemistry
and Chemical Biology, Department of Biomedical Engineering, Department of Chemical and Biological
Engineering, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, New York 12180, United States
- . Tel: (518) 577-1090
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3
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Edson CB, Liu M, Totsingan F, O’Berg E, Salvucci J, Dao U, Khare SD, Gross RA. Monomer Choice Influences N-Acryloyl Amino Acid Grafter Conversion via Protease Catalysis. Biomacromolecules 2023; 24:1798-1809. [PMID: 36996092 PMCID: PMC10139737 DOI: 10.1021/acs.biomac.3c00029] [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: 03/31/2023]
Abstract
End-capped peptides modified with reactive functional groups on the N-terminus provide a route to prepare peptide-polymer conjugates for a broad range of applications. Unfortunately, current chemical methods to construct modified peptides rely largely on solid-phase peptide synthesis (SPPS), which lacks green preparative characteristics and is costly, thus limiting its applicability to specialty applications such as regenerative medicine. This work evaluates N-terminally modified N-acryloyl-glutamic acid diethyl ester, N-acryloyl-leucine ethyl ester, and N-acryloyl-alanine ethyl ester as grafters and papain as the protease for the direct addition of amino acid ethyl ester (AA-OEt) monomers via protease-catalyzed peptide synthesis (PCPS) and the corresponding formation of N-acryloyl-functionalized oligopeptides in a one-pot aqueous reaction. It was hypothesized that by building N-acryloyl grafters from AA-OEt monomers that are known to be good substrates for papain in PCPS, the corresponding grafters would yield high grafter conversions, high ratio of grafter-oligopeptide to free NH2-oligopeptide, and high overall yield. However, this work demonstrates based on the grafter/monomers studied herein that the dominant factor in N-acryloyl-AA-OEt grafter conversion is the co-monomer used in co-oligomerizations. Computational modeling using Rosetta qualitatively recapitulates the results and provides insight into the structural and energetic bases underlying substrate selectivity. The findings herein expand our knowledge of factors that determine the efficiency of preparing N-acryloyl-terminated oligopeptides by PCPS that could provide practical routes to peptide macromers for conjugation to polymers and surfaces for a broad range of applications.
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Affiliation(s)
- Cody B. Edson
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8 St. Troy, NY 12180
| | - Melinda Liu
- Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Filbert Totsingan
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8 St. Troy, NY 12180
| | - Evan O’Berg
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8 St. Troy, NY 12180
| | - John Salvucci
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8 St. Troy, NY 12180
| | - Uyen Dao
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8 St. Troy, NY 12180
| | - Sagar D. Khare
- Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Richard A. Gross
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8 St. Troy, NY 12180
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4
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Amason AC, Meduri A, Rao S, Leonick N, Subramaniam B, Samuel J, Gross RA. Bacterial Cellulose Cultivations Containing Gelatin Form Tunable, Highly Ordered, Laminae Structures with Fourfold Enhanced Productivity. ACS Omega 2022; 7:47709-47719. [PMID: 36591152 PMCID: PMC9798505 DOI: 10.1021/acsomega.2c04820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/28/2022] [Indexed: 06/17/2023]
Abstract
Manipulation of bacterial cellulose (BC) morphology is important to tune BC properties to meet specific application requirements. In this study, gelatin was added to cultivation media at 0.1-7.5 wt %. After cultivations, gelatin was removed from the BC matrix, and its effects on BC matrix characteristics and fermentation production efficiency were determined. Higher contents of gelatin in cultivation media (up to 5%) resulted in BC that, from scanning electron microscopy observations, had larger pore sizes and formation of a lamina morphology that was highly unidirectional. Crystallinity remained unchanged between 0.1 and 5 wt % gelatin concentrations (92-95%); however, it decreased to 86% at a gelatin concentration of 7.5 wt %. Mechanical properties showed a positive trend as both the specific modulus and specific strength values increased as the gelatin concentration increased to 5 wt %. A breakdown in the ordered structure of the BC matrix occurs at 7.5 wt % gelatin, with corresponding decreases in the specific modulus and specific strength of the BC. The productivity increased by almost 4-fold relative to the control, reaching 1.64 g·L-1h-1 at the 2.5 wt % gelatin content. Also, the water holding capacity increased by 3-fold relative to the control, reaching 306.6 g of water per g BC at the 5.0 wt % gelatin content. The changes observed in these BC metrics can be explained based on literature findings associated with the formation of gelatin aggregates in the cultivation media and an increase in gel stiffness seen at higher media gelatin concentrations. Overall, this work provides a roadmap for manipulating BC properties while creating highly organized lamina morphologies.
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Affiliation(s)
- Anna-Christina Amason
- Center
for Biotechnology and Interdisciplinary Studies, Department of Biological
Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
- New
York State Center for Polymer Synthesis, Department of Chemistry and
Chemical Biology, Rensselaer Polytechnic
Institute, 110 8th Street, Troy, New
York 12180, United
States
| | - Aditya Meduri
- Center
for Biotechnology and Interdisciplinary Studies, Department of Biological
Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
- Jonsson
Engineering Center, Department of Mechanical Aerospace and Nuclear
Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
| | - Shivani Rao
- Center
for Biotechnology and Interdisciplinary Studies, Department of Biological
Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
- New
York State Center for Polymer Synthesis, Department of Chemistry and
Chemical Biology, Rensselaer Polytechnic
Institute, 110 8th Street, Troy, New
York 12180, United
States
| | - Nicole Leonick
- Center
for Biotechnology and Interdisciplinary Studies, Department of Biological
Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
- New
York State Center for Polymer Synthesis, Department of Chemistry and
Chemical Biology, Rensselaer Polytechnic
Institute, 110 8th Street, Troy, New
York 12180, United
States
| | - Bhagyashree Subramaniam
- Center
for Biotechnology and Interdisciplinary Studies, Department of Biological
Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
- New
York State Center for Polymer Synthesis, Department of Chemistry and
Chemical Biology, Rensselaer Polytechnic
Institute, 110 8th Street, Troy, New
York 12180, United
States
| | - Johnson Samuel
- Center
for Biotechnology and Interdisciplinary Studies, Department of Biological
Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
- Jonsson
Engineering Center, Department of Mechanical Aerospace and Nuclear
Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
| | - Richard A. Gross
- Center
for Biotechnology and Interdisciplinary Studies, Department of Biological
Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
- New
York State Center for Polymer Synthesis, Department of Chemistry and
Chemical Biology, Rensselaer Polytechnic
Institute, 110 8th Street, Troy, New
York 12180, United
States
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5
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Subramaniam B, Leonick N, Gade V, Frey DM, Zhang F, Linhardt RJ, Gross RA. Ionically Complexed Nanoparticles for Heparin Oral Delivery. Precision Nanomedicine 2022. [DOI: 10.33218/001c.37505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
<img src=” https://s3.amazonaws.com/production.scholastica/article/37505/large/prnano_812022ga_2.jpg?1661898072”> Ionically complexed nanoparticles were prepared from an anionic polysaccharide drug, heparin, entrapped by a positively charged chitosan polysaccharide. In this study, the encapsulation of heparin was studied to optimize properties needed for its oral drug delivery. Chitosan, used in a variety of biomedical applications, was selected as a cationic polymer for heparin encapsulation. These particles were prepared with a slightly positive charge and an appropriate size for oral drug delivery. The release profiles of these ionically complexed nanoparticles were improved by using FDA approved stabilizers, such as pluronic non-ionic surfactant and polyvinyl alcohol. These results obtained in vitro suggest that these stabilized, ionically complexed nanoparticles may be well-suited for the oral drug delivery of heparin into the gastrointestinal tract.
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Miceli RT, Corr DT, Barroso M, Dogra N, Gross RA. Sophorolipids: Anti-cancer activities and mechanisms. Bioorg Med Chem 2022; 65:116787. [PMID: 35526504 DOI: 10.1016/j.bmc.2022.116787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 02/06/2022] [Revised: 04/19/2022] [Accepted: 04/28/2022] [Indexed: 11/18/2022]
Abstract
Sophorolipids (SLs) are biosurfactants synthesized as secondary metabolites by non-pathogenic yeasts and other microorganisms. They are members of glycolipid microbial surfactant family that consists of a sophorose polar head group and, most often, an ω-1 hydroxylated fatty acid glycosidically linked to the sophorose moiety. Since the fermentative production of SLs is high (>200 g/L), SLs have the potential to provide low-cost therapeutics. Natural and modified SLs possess anti-cancer activity against a wide range of cancer cell lines such as those derived from breast, cervical, colon, liver, brain, and the pancreas. Corresponding data on their cytotoxicity against noncancerous cell lines including human embryo kidney, umbilical vein, and mouse fibroblasts is also discussed. These results are compiled to elucidate trends in SL-structures that lead to higher efficacy against cancer cell lines and lower cytotoxicity for normal cell lines. While extrapolation of these results provides some insights into the design of SLs with optimal therapeutic indices, we also provide a critical assessment of gaps and inconsistencies in the literature as well as the lack of data connecting structure-to-anticancer and cytotoxicity on normal cells. Furthermore, SL-mechanism of action against cancer cell lines, that includes proliferation inhibition, induction of apoptosis, membrane disruption and mitochondria mediated pathways are discussed. Perspectives on future research to develop SL anticancer therapeutics is discussed.
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Affiliation(s)
- Rebecca T Miceli
- Center for Biotechnology and Interdisciplinary Sciences and Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180, United States; Department of Chemistry and Chemical Biology and Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180, United States; Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180, United States
| | - David T Corr
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180, United States
| | - Margardia Barroso
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY 12208, United States
| | - Navneet Dogra
- Department of Genetics and Genomics Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Richard A Gross
- Center for Biotechnology and Interdisciplinary Sciences and Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180, United States; Department of Chemistry and Chemical Biology and Rensselaer Polytechnic Institute, 110 Eighth Street, Troy, NY 12180, United States.
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8
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Gross RA. Call for Special Papers: Young Investigator Best Paper Award. Ind Biotechnol (New Rochelle N Y) 2022. [DOI: 10.1089/ind.2022.29286.cfp] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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9
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Wang X, Amason AC, Lei Y, Gabbard R, Wieland JA, Gross RA. Bio-based alternative for encapsulating fragrance oils in epoxy resin microcapsules. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Lang K, Quichocho HB, Black SP, Bramson MTK, Linhardt RJ, Corr DT, Gross RA. Lipase-Catalyzed Poly(glycerol-1,8-octanediol-sebacate): Biomaterial Engineering by Combining Compositional and Crosslinking Variables. Biomacromolecules 2022; 23:2150-2159. [PMID: 35468284 DOI: 10.1021/acs.biomac.2c00198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This study examined poly(glycerol-1,8-octanediol-sebacate) (PGOS) copolymers with low-level substitution of O (1,8-octanediol) for G (glycerol) units (G/O ratios 0.5:0.5, 0.66:0.33, 0.75:0.25, 0.8:0.2, and 0.91:0.09) prepared in bulk by immobilized Candida antarctica Lipase B (N435) catalysis. The central question explored was the extent that exchanging less than half of poly(glycerol sebacate) (PGS) glycerol units with 1,8-octanediol can be used as a strategy to fine-tune biomaterial properties. Synthesized copolymers having G/O ratios of 0.66:0.33, 0.75:0.25, 0.8:0.2, and 0.91:0.09 have similar molecular weights, where Mw varied from 52,800 to 63,800 g/mol, Mn varied from 5100 to 6450 g/mol, and ĐM (molecular mass dispersity, Mw/Mn) values were also similar (8.4-11.4). All of the copolymers were branched, and dendritic glycerol units reached 11% for PGOS-0.91:0.09:1.0. Analysis of DSC second heating scans revealed that copolymers with higher 1,8-octanediol contents have relatively higher Tm and ΔHf values. Over the copolymer compositional range studied herein, Tm and ΔHf values varied from 5.3 to 21.1 °C and 8.0 to 23.1 J/g, respectively. Stress-strain curves of PGOS copolymers cured at 140 °C for 48 h exhibited either a unimodal, bimodal, or trimodal response to tensile loading. Varying G/O from 10:1 to 2:1 resulted in significant increases in the peak stress (0.26-4.01 MPa), preyield modulus (0.65-62.59 MPa), failure to strain (64-110%), and failure toughness (0.1-0.56 MPa). This demonstrates that altering the G/O ratio over a narrow compositional range provides biomaterials with widely different yet tunable mechanical properties. Further investigation of PGOS-0.75:0.25:1.0 films revealed that varying the cure conditions from 120 to 160 °C for periods of 24-72 h provides access to biomaterials with a failure strain range from 15 to 224% and Young's modulus from 1.17 to 10.85 MPa. Hence, using the dual variables of compositional variation and changes in cure conditions provides an exciting platform for PGS analogues to optimize material-tissue interactions. Increased contents of 1,8-octanediol slowed in vitro degradation. Slowed degradation of PGOS relative to PGS will be valuable for use in slower healing wounds.
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Affiliation(s)
- Kening Lang
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Ha'Ani-Belle Quichocho
- Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Sarah P Black
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Michael T K Bramson
- Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Robert J Linhardt
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Chemical and Biological Engineering, and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - David T Corr
- Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Richard A Gross
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Chemical and Biological Engineering, and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
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11
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Gross RA. Opportunities for the Industrial Biotechnology Community in Carbon Capture. Ind Biotechnol (New Rochelle N Y) 2022. [DOI: 10.1089/ind.2022.29279.rag] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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12
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Abstract
This study demonstrated that immobilized Candida antarctica lipase B (N435) catalysis in bulk leads to higher molecular weight poly(glycerol sebacate), PGS, than self-catalyzed condensation polymerization. Since the glass-transition temperature, fragility, modulus, and strength for rubbery networks are inversely dependent on the concentration of chain ends, higher molecular weight PGS prepolymers will enable the preparation of cross-linked PGS matrices with unique mechanical properties. The evolution of molecular species during the prepolymerization step conducted at 120 °C for 24 h, prior to enzyme addition, revealed regular decreases in sebacic acid and glycerol-sebacate dimer with corresponding increases in oligomers with chain lengths from 3 to 7 units such that a homogeneous liquid substrate has resulted. At 67 h, for N435-catalyzed PGS synthesis, the carboxylic acid conversion reached 82% without formation of a gel fraction, and number-average molecular weight (Mn) and weight-average molecular weight (Mw) values reached 6000 and 59 400 g/mol, respectively. In contrast, self-catalyzed PGS condensation polymerizations required termination at 55 h to avoid gelation, reached 72% conversion, and Mn and Mw values of 2600 and 13 800 g/mol, respectively. We also report the extent that solvent fractionation can enrich PGS in higher molecular weight chains. The use of methanol as a nonsolvent increased Mn and Mw by 131.7 and 18.3%, respectively, and narrower dispersity (Đ) decreased by 47.7% relative to the nonfractionated product.
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Affiliation(s)
- Zhuoyuan Ning
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China
| | - Kening Lang
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Ke Xia
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Robert J Linhardt
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Chemical and Biological Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Richard A Gross
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Chemical and Biological Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
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13
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Bedade DK, Edson CB, Gross RA. Emergent Approaches to Efficient and Sustainable Polyhydroxyalkanoate Production. Molecules 2021; 26:3463. [PMID: 34200447 PMCID: PMC8201374 DOI: 10.3390/molecules26113463] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 04/25/2021] [Revised: 05/25/2021] [Accepted: 05/27/2021] [Indexed: 11/16/2022] Open
Abstract
Petroleum-derived plastics dominate currently used plastic materials. These plastics are derived from finite fossil carbon sources and were not designed for recycling or biodegradation. With the ever-increasing quantities of plastic wastes entering landfills and polluting our environment, there is an urgent need for fundamental change. One component to that change is developing cost-effective plastics derived from readily renewable resources that offer chemical or biological recycling and can be designed to have properties that not only allow the replacement of current plastics but also offer new application opportunities. Polyhydroxyalkanoates (PHAs) remain a promising candidate for commodity bioplastic production, despite the many decades of efforts by academicians and industrial scientists that have not yet achieved that goal. This article focuses on defining obstacles and solutions to overcome cost-performance metrics that are not sufficiently competitive with current commodity thermoplastics. To that end, this review describes various process innovations that build on fed-batch and semi-continuous modes of operation as well as methods that lead to high cell density cultivations. Also, we discuss work to move from costly to lower cost substrates such as lignocellulose-derived hydrolysates, metabolic engineering of organisms that provide higher substrate conversion rates, the potential of halophiles to provide low-cost platforms in non-sterile environments for PHA formation, and work that uses mixed culture strategies to overcome obstacles of using waste substrates. We also describe historical problems and potential solutions to downstream processing for PHA isolation that, along with feedstock costs, have been an Achilles heel towards the realization of cost-efficient processes. Finally, future directions for efficient PHA production and relevant structural variations are discussed.
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Affiliation(s)
- Dattatray K. Bedade
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA;
| | - Cody B. Edson
- New York State Center for Polymer Synthesis, Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA;
| | - Richard A. Gross
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA;
- New York State Center for Polymer Synthesis, Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA;
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14
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Totsingan F, Liu F, Gross RA. Structure-Activity Relationship Assessment of Sophorolipid Ester Derivatives against Model Bacteria Strains. Molecules 2021; 26:3021. [PMID: 34069408 PMCID: PMC8158775 DOI: 10.3390/molecules26103021] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/12/2021] [Accepted: 05/16/2021] [Indexed: 11/27/2022] Open
Abstract
Sophorolipids (SLs) are glycolipids that consist of a hydrophilic sophorose head group covalently linked to a hydrophobic fatty acid tail. They are produced by fermentation of non-pathogenic yeasts such as Candida Bombicola. The fermentation products predominantly consist of the diacetylated lactonic form that coexists with the open-chain acidic form. A systematic series of modified SLs were prepared by ring opening of natural lactonic SL with n-alkanols of varying chain length under alkaline conditions and lipase-selective acetylation of sophorose primary hydroxyl groups. The antimicrobial activity of modified SLs against Gram-positive human pathogens was a function of the n-alkanol length, as well as the degree of sophorose acetylation at the primary hydroxyl sites. Modified SLs were identified with promising antimicrobial activities against Gram-positive human pathogens with moderate selectivity (therapeutic index, TI = EC50/MICB. cereus = 6-33). SL-butyl ester exhibited the best antimicrobial activity (MIC = 12 μM) and selectivity (TI = 33) among all SLs tested. Kinetic studies revealed that SL-ester derivatives kill B. cereus in a time-dependent manner resulting in greater than a 3-log reduction in cell number within 1 h at 2×MIC. In contrast, lactonic SL required 3 h to achieve the same efficiency.
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Affiliation(s)
- Filbert Totsingan
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Fei Liu
- Center for Biotechnology and Interdisciplinary Studies (CBIS), Rensselaer Polytechnic Institute, Troy, NY 12180, USA;
| | - Richard A. Gross
- Center for Biotechnology and Interdisciplinary Studies (CBIS), Rensselaer Polytechnic Institute, Troy, NY 12180, USA;
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15
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Naz S, Banerjee T, Totsingan F, Woody K, Gross RA, Santra S. Therapeutic Efficacy of Lactonic Sophorolipids: Nanoceria-Assisted Combination Therapy of NSCLC using HDAC and Hsp90 Inhibitors. Nanotheranostics 2021; 5:391-404. [PMID: 33912379 PMCID: PMC8077971 DOI: 10.7150/ntno.57675] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 03/20/2021] [Indexed: 12/27/2022] Open
Abstract
Purpose: Non-Small-Cell Lung Cancer (NSCLC) has gained resistance to common chemo- and radiotherapy due to the oncogenic K-RAS mutations. In this work, lactonic sophorolipids (LSL), a constituent of natural sophorolipids known to inhibit histone deacetylase (HDAC) activity, is used to evaluate its potential anticancer property for the treatment of NSCLC. In addition, ganetespib (GT), a Hsp90 inhibitor, is used for its known antitumor activity in several K-RAS mutant NSCLC cells. We propose, a functional anti-oxidant nanomedicine composed of nanoceria (NC) encapsulated with two-drug cocktail LSL and GT for the assessment of therapeutic efficacy of LSL and targeted combination therapy of NSCLC. NC is an excellent redox platform specifically used to supplement the therapeutic potency of these drugs to target both HDAC inhibition and Hsp90 signaling pathways in NSCLC. Methods: Polyacrylic acid-coated nanoceria (PNC) was formulated and folic acid was conjugated on the surface of PNC using "click" chemistry to target NSCLC and to minimize adverse side effects. Solvent diffusion method was used for the encapsulation of individual drugs and co-encapsulation of drug-cocktail along with an optical dye DiI for diagnosis. We hypothesized that the therapeutic efficacy of LSL will be synergistically accelerated by the inhibition of Hsp90 mechanism of GT and redox activity of NC. Results: For the targeted therapy of NSCLC, A549 cells were used and Chinese hamster ovary (CHO) cells were used as healthy control cells. Results showed more than 40% cells were dead within 24 h when treated with LSL nanodrug. When combined with GT, enhanced ROS signals were detected and more than 80% reduction in cell viability was recorded within 24 h of incubation. Treatments with NC without any drug showed minimal toxicity. Migration assays indicate that the highly metastatic nature of NSCLC is successfully restricted by this combination approach. To validate the effectiveness of this combination therapy various cell-based assays including detection of apoptosis, necrosis and HDAC inhibition of LSL were performed. Conclusion: Functional nanoceria with drug-cocktail LSL and GT is successfully developed for the targeted treatment of undruggable NSCLC. The fluorescence modality helps monitoring the drugs delivery. Results demonstrate the potential therapeutic efficacy of LSL, which is synergistically accelerated by the Hsp90 inhibition mechanism of GT and redox activity of NC.
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Affiliation(s)
- Shuguftha Naz
- Department of Chemistry, Pittsburg State University, Pittsburg, Kansas 66762, United States
| | - Tuhina Banerjee
- Department of Chemistry, Pittsburg State University, Pittsburg, Kansas 66762, United States
| | - Filbert Totsingan
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Kalee Woody
- Department of Chemistry, Pittsburg State University, Pittsburg, Kansas 66762, United States
| | - Richard A. Gross
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Santimukul Santra
- Department of Chemistry, Pittsburg State University, Pittsburg, Kansas 66762, United States
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16
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Ayinla ZA, Ademakinwa AN, Gross RA, Agboola FK. Biochemical and biophysical characterisation of a small purified lipase from Rhizopus oryzae ZAC3. BIOCATAL BIOTRANSFOR 2021. [DOI: 10.1080/10242422.2021.1883006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Zainab A. Ayinla
- Department of Biochemistry and Molecular Biology, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Adedeji N. Ademakinwa
- Department of Biochemistry and Molecular Biology, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Richard A. Gross
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Femi K. Agboola
- Department of Biochemistry and Molecular Biology, Obafemi Awolowo University, Ile-Ife, Nigeria
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17
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Lang K, Sánchez-Leija RJ, Gross RA, Linhardt RJ. Review on the Impact of Polyols on the Properties of Bio-Based Polyesters. Polymers (Basel) 2020; 12:E2969. [PMID: 33322728 PMCID: PMC7764582 DOI: 10.3390/polym12122969] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 11/25/2020] [Accepted: 12/09/2020] [Indexed: 11/17/2022] Open
Abstract
Bio-based polyol polyesters are biodegradable elastomers having potential utility in soft tissue engineering. This class of polymers can serve a wide range of biomedical applications. Materials based on these polymers are inherently susceptible to degradation during the period of implantation. Factors that influence the physicochemical properties of polyol polyesters might be useful in achieving a balance between durability and biodegradability. The characterization of these polyol polyesters, together with recent comparative studies involving creative synthesis, mechanical testing, and degradation, have revealed many of their molecular-level differences. The impact of the polyol component on the properties of these bio-based polyesters and the optimal reaction conditions for their synthesis are only now beginning to be resolved. This review describes our current understanding of polyol polyester structural properties as well as a discussion of the more commonly used polyol monomers.
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Affiliation(s)
- Kening Lang
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (K.L.); (R.J.S.-L.)
| | - Regina J. Sánchez-Leija
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (K.L.); (R.J.S.-L.)
- Pritzker School of Molecular Engineering, The University of Chicago, 5640 S Ellis Ave, Chicago, IL 60637, USA
| | - Richard A. Gross
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (K.L.); (R.J.S.-L.)
- Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Robert J. Linhardt
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; (K.L.); (R.J.S.-L.)
- Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
- Department of Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
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18
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Li C, Xu W, Lu Y, Gross RA. Lipase-Catalyzed Reactive Extrusion: Copolymerization of ε-Caprolactone and ω-Pentadecalactone. Macromol Rapid Commun 2020; 41:e2000417. [PMID: 33047442 DOI: 10.1002/marc.202000417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 08/02/2020] [Revised: 09/30/2020] [Indexed: 12/28/2022]
Abstract
This study assesses the use of immobilized lipase catalyst N435 during reactive extrusion (REX) versus magnetically stirred bulk and solution reaction conditions for the copolymerization of ε-caprolactone with ω-pentadecalactone (CL/PDL 1:1 molar). N435-catalyzed REX for reaction times from 1 to 3 h results in total %-monomer conversion, Mn , and Đ values increase from 92.7% to 98.8%, 36.1 to 51.3 kDa, and 1.85 to 1.96, respectively. Diad fraction analysis by quantitative 13 C NMR reveals that, after just 1 h, rapid N435-catalyzed transesterification reactions occur that give random copolyesters. In contrast, for bulk polymerization with magnetic stirring in round bottom flasks, reaction times from 1 to 3 h result in the following: Mn increases from 12.4 to 25.6 kDa, Đ decreases from 2.98 to 1.87, and the randomness index increases from 0.74 and 0.86 as PDL*-PDL diads are dominant. These results highlight that REX avoids problems associated with internal batch mixing that are encountered in bulk polymerizations. In sharp contrast to a previous study of 1:1 molar PDL/δ-valerolactone (VL) copolymerizations by N435-catalyzed REX, VL %-conversion increases to just 40.1% in 1 h whereas CL reaches 94.7%.
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Affiliation(s)
- Changcun Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Institute of Polymer Science and Engineering, Hunan University, Changsha, 410082, China.,Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA.,Baling Petrochemical Company, SINOPEC Asset Management Corporation, Yueyang, 414014, China
| | - Weijian Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Institute of Polymer Science and Engineering, Hunan University, Changsha, 410082, China
| | - Yanbing Lu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Institute of Polymer Science and Engineering, Hunan University, Changsha, 410082, China
| | - Richard A Gross
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
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19
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Sarkar A, Edson C, Tian D, Fink TD, Cianciotti K, Gross RA, Bae C, Zha RH. Rapid Synthesis of Silk-Like Polymers Facilitated by Microwave Irradiation and Click Chemistry. Biomacromolecules 2020; 22:95-105. [PMID: 32902261 DOI: 10.1021/acs.biomac.0c00563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Silk is a natural fiber that surpasses most man-made polymers in its combination of strength and toughness. Silk fibroin, the primary protein component of silk, can be synthetically mimicked by a linear copolymer with alternating rigid and soft segments. Strategies for chemical synthesis of such silk-like polymers have persistently resulted in poor sequence control, long reaction times, and low molecular weights. Here, we present a two-stage approach for rapidly synthesizing silk-like polymers with precisely defined rigid blocks. This approach utilizes solid-phase peptide synthesis to create uniform oligoalanine "prepolymers", followed by microwave-assisted step-growth polymerization with bifunctional poly(ethylene glycol). Multiple coupling chemistries and reaction conditions were explored, with microwave-assisted click chemistry yielding polymers with Mw ∼ 14 kg/mol in less than 20 min. These polymers formed antiparallel β-sheets and nanofibers, which is consistent with the structure of natural silk fibroin. Thus, our strategy demonstrates a promising modular approach for synthesizing silk-like polymers.
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Affiliation(s)
- Amrita Sarkar
- Department of Chemical & Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Cody Edson
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Ding Tian
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Tanner D Fink
- Department of Chemical & Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Katherine Cianciotti
- Department of Chemical & Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Richard A Gross
- Department of Chemical & Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Chulsung Bae
- Department of Chemical & Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States.,Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - R Helen Zha
- Department of Chemical & Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
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20
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Wang X, Lin RJ, Gross RA. Sophorolipid Butyl Ester: An Antimicrobial Stabilizer of Essential Oil-Based Emulsions and Interactions with Chitosan and γ-Poly(glutamic acid). ACS Appl Bio Mater 2020; 3:5136-5147. [DOI: 10.1021/acsabm.0c00592] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xue Wang
- New York State Center for Polymer Synthesis, Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
- Center for Biotechnology and Interdisciplinary Studies, Department of Biological Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
| | - Raymond J. Lin
- New York State Center for Polymer Synthesis, Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
- Center for Biotechnology and Interdisciplinary Studies, Department of Biological Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
| | - Richard A. Gross
- New York State Center for Polymer Synthesis, Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, United States
- Center for Biotechnology and Interdisciplinary Studies, Department of Biological Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
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21
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Lang K, Bhattacharya S, Ning Z, Sánchez-Leija RJ, Bramson MTK, Centore R, Corr DT, Linhardt RJ, Gross RA. Enzymatic Polymerization of Poly(glycerol-1,8-octanediol-sebacate): Versatile Poly(glycerol sebacate) Analogues that Form Monocomponent Biodegradable Fiber Scaffolds. Biomacromolecules 2020; 21:3197-3206. [DOI: 10.1021/acs.biomac.0c00641] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kening Lang
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Somdatta Bhattacharya
- Department of Chemical and Biological Engineering, and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Zhuoyuan Ning
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Regina J. Sánchez-Leija
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Michael T. K. Bramson
- Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Robert Centore
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - David T. Corr
- Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Robert J. Linhardt
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Department of Chemical and Biological Engineering, and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Department of Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Richard A. Gross
- Department of Chemistry and Chemical Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Department of Chemical and Biological Engineering, and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Department of Biomedical Engineering and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Department of Biology and Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
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22
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Yang F, Totsingan F, Dolan E, Khare SD, Gross RA. Protease-Catalyzed l-Aspartate Oligomerization: Substrate Selectivity and Computational Modeling. ACS Omega 2020; 5:4403-4414. [PMID: 32175488 PMCID: PMC7066554 DOI: 10.1021/acsomega.9b03290] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 12/11/2019] [Indexed: 05/20/2023]
Abstract
Poly(aspartic acid) (PAA) is a biodegradable water-soluble anionic polymer that can potentially replace poly(acrylic acid) for industrial applications and has shown promise for regenerative medicine and drug delivery. This paper describes an efficient and sustainable route that uses protease catalysis to convert l-aspartate diethyl ester (Et2-Asp) to oligo(β-ethyl-α-aspartate), oligo(β-Et-α-Asp). Comparative studies of protease activity for oligo(β-Et-α-Asp) synthesis revealed α-chymotrypsin to be the most efficient. Papain, which is highly active for l-glutamic acid diethyl ester (Et2-Glu) oligomerization, is inactive for Et2-Asp oligomerization. The assignment of α-linkages between aspartate repeat units formed by α-chymotrypsin catalysis is based on nuclear magnetic resonance (NMR) trifluoacetic acid titration, circular dichroism, and NMR structural analysis. The influence of reaction conditions (pH, temperature, reaction time, and buffer/monomer/α-chymotrypsin concentrations) on oligopeptide yield and average degree of polymerization (DPavg) was determined. Under preferred reaction conditions (pH 8.5, 40 °C, 0.5 M Et2-Asp, 3 mg/mL α-chymotrypsin), Et2-Asp oligomerizations reached maximum oligo(β-Et-α-Asp) yields of ∼60% with a DPavg of ∼12 (M n 1762) in just 5 min. Computational modeling using Rosetta software gave relative energies of substrate docking to papain and α-chymotrypsin active sites. The substrate preference calculated by Rosetta modeling of α-chymotrypsin and papain for Et2-Asp and Et2-Glu oligomerizations, respectively, is consistent with experimental results.
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Affiliation(s)
- Fan Yang
- Center for Biotechnology
and Interdisciplinary Studies (CBIS), Rensselaer
Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United
States
| | - Filbert Totsingan
- Center for Biotechnology
and Interdisciplinary Studies (CBIS), Rensselaer
Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United
States
| | - Elliott Dolan
- Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Sagar D. Khare
- Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Richard A. Gross
- Center for Biotechnology
and Interdisciplinary Studies (CBIS), Rensselaer
Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United
States
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23
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Centore R, Totsingan F, Amason AC, Lyons S, Zha RH, Gross RA. Self-Assembly-Assisted Kinetically Controlled Papain-Catalyzed Formation of mPEG- b-Phe(Leu) x. Biomacromolecules 2020; 21:493-507. [PMID: 31820938 DOI: 10.1021/acs.biomac.9b01237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Self-assembling peptide materials are promising next-generation materials with applications that include tissue engineering scaffolds, drug delivery, bionanomedicine, and enviro-responsive materials. Despite these advances, synthetic methods to form peptides and peptide-polymer conjugates still largely rely on solid-phase peptide synthesis (SPPS) and N-carboxyanhydride ring-opening polymerization (NCA-ROP), while green methods remain largely undeveloped. This work demonstrates a protease-catalyzed peptide synthesis (PCPS) capable of directly grafting leucine ethyl ester (Leu-OEt) from the C-terminus of a methoxy poly(ethylene glycol)-phenylalanine ethyl ester macroinitiator in a one-pot, aqueous reaction. By using the natural tendency of the growing hydrophobic peptide segment to self-assemble, a large narrowing of the (Leu)x distributions for both mPEG45-b-Phe(Leu)x and oligo(Leu)x coproducts, relative to oligo(Leu)x synthesized in the absence of a macroinitiator (mPEG45-Phe-OEt), was achieved. A mechanism is described where in situ β-sheet coassembly of mPEG45-b-Phe(Leu)x and oligo(Leu)x coproducts during polymerization prevents peptide hydrolysis, providing a means to control the degree of polymerization (DP) and dispersity of diblock (Leu)x segments (matrix-assisted laser desorption time-of-flight (MALDI-TOF) x = 5.1, dispersity ≤ 1.02). The use of self-assembly to control the uniformity of peptides synthesized by PCPS paves the way for precise peptide block copolymer architectures with various polymer backbones and amino acid compositions synthesized by a green process.
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24
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Amason AC, Nowak JF, Samuel J, Gross RA. Effect of Atomized Delivery of Nutrients on the Growth Characteristics and Microstructure Morphology of Bacterial Cellulose. Biomacromolecules 2020; 21:508-516. [PMID: 31756098 DOI: 10.1021/acs.biomac.9b01249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This work demonstrates a general strategy for introducing remarkable changes in matrix organization and, consequently, functional properties of bacterial cellulose (BC). BC-producing cells were induced, using a well-defined atomized droplet nutrient delivery (ADND) system, to form pellicles with a regular layered morphology that persists throughout the mat depth. In contrast, the morphology of mats formed by conventional static medium nutrient delivery (SMND) is irregular with no distinguishable pattern. ADND also resulted in larger meso-scale average pore sizes but did not alter the fibril diameter (∼70 nm) and crystallinity index (92-95%). The specific modulus and specific tensile strength of ADND mats are higher than those of SMND mats. This is due to the regularity of dense layers that are present in ADND mats that are able to sustain tensile loads, when applied parallel to these layers. The density of BC films prepared by ADND is 1.63-fold lower than that of the SMND BC film. Consequently, the water contents (g/g) of ADND- and SMND-prepared BC mats are 263 ± 8.85 and 99.6 ± 2.04, respectively. A model that rationalizes differences in mat morphology resulting from these nutrient delivery methods based on nutrient and oxygen concentration gradients is proposed. This work raises questions as to the extent that ADND can be used to fine-tune the matrix morphology and how the resulting lower density mats will alter the diffusion of actives from the films to wound sites and increase the ability of cells to infiltrate the matrix during tissue engineering.
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Affiliation(s)
- Anna-Christina Amason
- Center for Biotechnology and Interdisciplinary Studies, Department of Biological Sciences , Rensselaer Polytechnic Institute , 1623 15th Street , Troy , New York 12180 , United States
| | | | | | - Richard A Gross
- Center for Biotechnology and Interdisciplinary Studies, Department of Biological Sciences , Rensselaer Polytechnic Institute , 1623 15th Street , Troy , New York 12180 , United States
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Su A, Kiokekli S, Naviwala M, Shirke AN, Pavlidis IV, Gross RA. Cutinases as stereoselective catalysts: Specific activity and enantioselectivity of cutinases and lipases for menthol and its analogs. Enzyme Microb Technol 2020; 133:109467. [PMID: 31874689 DOI: 10.1016/j.enzmictec.2019.109467] [Citation(s) in RCA: 4] [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: 09/17/2019] [Revised: 11/08/2019] [Accepted: 11/11/2019] [Indexed: 12/15/2022]
Abstract
The specific activity and enantioselectivity of immobilized cutinases from Aspergillus oryzae (AoC) and Humicola insolens (HiC) were compared with those of lipases from Thermomyces lanuginosus (TLL), Rhizomucor miehei (RML) and Lipase B from Candida antarctica (CALB) for menthol and its analogs that include isopulegol, trans-2-tert-butylcyclohexanol (2TBC), and dihydrocarveol (DHC). Common features of these alcohols are two bulky substituents: a cyclohexyl ring and an alkyl substituent. Dissimilarities are that the alkyl group reside at different positions or have dissimilar structures. The aim was to develop an understanding at a molecular level of similarities and differences in the catalytic behavior of the selected cutinases and lipases as a function of substrate structural elements. The experimental results reflect the (-)-enantioselectivity for AoC, HiC, TLL, and RML, while CALB is only active on DHC with (+)-enantioselectivity. In most cases, AoC has the highest activity while HiC is significantly more active than other enzymes on 2TBC. The E values of AoC, HiC, TLL, and RML for menthol are 27.8, 16.5, 155, and 125, respectively. HiC has a higher activity (>10-fold) on (-)-2TBC than AoC while they exhibit similar activities on menthol. Docking results reveal that the bulky group adjacent to the hydroxyl group determines the enantioselectivity of AoC, HiC, TLL, and RML. Amino acid residues that dominate the enantioselectivity of these enzymes are AoC's Phe195 aromatic ring; HiC's hydrophobic Leu 174 and Ile 169 groups; TLL's ring structures of Trp89, His258 and Tyr21; and Trp88 for RML. Results of this study highlight that cutinases can provide important advantages relative to lipases for enantioselective transformation, most notably with bulky and sterically hindered substrates.
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Affiliation(s)
- An Su
- New York State Center for Polymer Synthesis, Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA; Center for Biotechnology and Interdisciplinary Studies, Department of Biological Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, NY 12180, USA
| | - Serpil Kiokekli
- Department of Chemistry, University of Crete, Voutes University Campus, 70013 Heraklion, Greece
| | - Mariam Naviwala
- The Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA
| | - Abhijit N Shirke
- New York State Center for Polymer Synthesis, Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA; Center for Biotechnology and Interdisciplinary Studies, Department of Biological Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, NY 12180, USA
| | - Ioannis V Pavlidis
- Department of Chemistry, University of Crete, Voutes University Campus, 70013 Heraklion, Greece.
| | - Richard A Gross
- New York State Center for Polymer Synthesis, Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180, USA; Center for Biotechnology and Interdisciplinary Studies, Department of Biological Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, NY 12180, USA.
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Xu G, Zha J, Cheng H, Ibrahim MHA, Yang F, Dalton H, Cao R, Zhu Y, Fang J, Chi K, Zheng P, Zhang X, Shi J, Xu Z, Gross RA, Koffas MAG. Engineering Corynebacterium glutamicum for the de novo biosynthesis of tailored poly-γ-glutamic acid. Metab Eng 2019; 56:39-49. [PMID: 31449877 DOI: 10.1016/j.ymben.2019.08.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [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: 05/03/2019] [Revised: 08/15/2019] [Accepted: 08/17/2019] [Indexed: 11/17/2022]
Abstract
γ-Polyglutamic acid (γ-PGA) is a biodegradable polymer naturally produced by Bacillus spp. that has wide applications. Fermentation of γ-PGA using Bacillus species often requires the supplementation of L-glutamic acid, which greatly increases the overall cost. Here, we report a metabolically engineered Corynebacterium glutamicum capable of producing γ-PGA from glucose. The genes encoding γ-PGA synthase complex from B. subtilis (pgsB, C, and A) or B. licheniformis (capB, C, and A) were expressed under inducible promoter Ptac in a L-glutamic acid producer C. glutamicum ATCC 13032, which led to low levels of γ-PGA production. Subsequently, C. glutamicum F343 with a strong L-glutamic acid production capability was tested. C. glutamicum F343 carrying capBCA produced γ-PGA up to 11.4 g/L, showing a higher titer compared with C. glutamicum F343 expressing pgsBCA. By introducing B. subtilis glutamate racemase gene racE under Ptac promoter mutants with different expression strength, the percentage of L-glutamic acid units in γ-PGA could be adjusted from 97.1% to 36.9%, and stayed constant during the fermentation process, while the γ-PGA titer reached 21.3 g/L under optimal initial glucose concentrations. The molecular weight (Mw) of γ-PGA in the engineered strains ranged from 2000 to 4000 kDa. This work provides a foundation for the development of sustainable and cost-effective de novo production of γ-PGA from glucose with customized ratios of L-glutamic acid in C. glutamicum.
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Affiliation(s)
- Guoqiang Xu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, United States; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, China
| | - Jian Zha
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, United States
| | - Hui Cheng
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, China
| | - Mohammad H A Ibrahim
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, United States; Chemistry of Natural and Microbial Products Department, National Research Centre, Al-Bohoos St., Cairo, 12622, Egypt
| | - Fan Yang
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, United States
| | - Hunter Dalton
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, United States
| | - Rong Cao
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, China
| | - Yaxin Zhu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, China
| | - Jiahua Fang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, China
| | - Kaijun Chi
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, China
| | - Pu Zheng
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Xiaomei Zhang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214122, China; Laboratory of Pharmaceutical Engineering, School of Pharmaceutics, Jiangnan University, Wuxi, 214122, China
| | - Jinsong Shi
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214122, China; Laboratory of Pharmaceutical Engineering, School of Pharmaceutics, Jiangnan University, Wuxi, 214122, China
| | - Zhenghong Xu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214122, China; National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China; Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, 214122, China; Laboratory of Pharmaceutical Engineering, School of Pharmaceutics, Jiangnan University, Wuxi, 214122, China.
| | - Richard A Gross
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, United States; Chemistry of Natural and Microbial Products Department, National Research Centre, Al-Bohoos St., Cairo, 12622, Egypt; Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA.
| | - Mattheos A G Koffas
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu, 214122, China; Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, United States; Chemistry of Natural and Microbial Products Department, National Research Centre, Al-Bohoos St., Cairo, 12622, Egypt; Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA; Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, NY, USA.
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Ziemba AM, Lane KP, Balouch B, D'Amato AR, Totsingan F, Gross RA, Gilbert RJ. Lactonic Sophorolipid Increases Surface Wettability of Poly-l-lactic Acid Electrospun Fibers. ACS Appl Bio Mater 2019; 2:3153-3158. [PMID: 35030759 DOI: 10.1021/acsabm.9b00268] [Citation(s) in RCA: 5] [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] [Indexed: 12/24/2022]
Abstract
The hydrophobicity of electrospun poly-l-lactic acid (PLLA) fibers hinders their integration with surrounding tissue for a variety of applications. In this study, we increased PLLA fiber hydrophilicity by incorporating the natural surfactant, lactonic sophorolipid (LSL). PLLA+LSL fibers had similar fiber morphology but significantly greater surface wettability, which suggested LSL accumulation on the fiber surface. Differential scanning calorimetry results also suggested that LSL was phase separated from PLLA. Despite the altered surface wettability of these fibers, there was no change in fibroblast adhesion. Future studies may explore the use of this natural surfactant to deliver bioactive factors to enhance fibroblast adhesion.
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Affiliation(s)
- Alexis M Ziemba
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 1623 Fifteenth Street, Troy, New York 12180, United States
| | - Keith P Lane
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 1623 Fifteenth Street, Troy, New York 12180, United States
| | - Bailey Balouch
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 1623 Fifteenth Street, Troy, New York 12180, United States
| | - Anthony R D'Amato
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 1623 Fifteenth Street, Troy, New York 12180, United States
| | | | - Richard A Gross
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 1623 Fifteenth Street, Troy, New York 12180, United States
| | - Ryan J Gilbert
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 1623 Fifteenth Street, Troy, New York 12180, United States
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Hollande L, Do Marcolino I, Balaguer P, Domenek S, Gross RA, Allais F. Preparation of Renewable Epoxy-Amine Resins With Tunable Thermo-Mechanical Properties, Wettability and Degradation Abilities From Lignocellulose- and Plant Oils-Derived Components. Front Chem 2019; 7:159. [PMID: 30972325 PMCID: PMC6445855 DOI: 10.3389/fchem.2019.00159] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/04/2019] [Indexed: 11/30/2022] Open
Abstract
One-hundred percent renewable triphenol—GTF—(glycerol trihydroferulate) and novel bisphenols—GDFx–(glycerol dihydroferulate) were prepared from lignocellulose-derived ferulic acid and vegetal oil components (fatty acids and glycerol) using highly selective lipase-catalyzed transesterifications. Estrogenic activity tests revealed no endocrine disruption for GDFx bisphenols. Triethyl-benzyl-ammonium chloride (TEBAC) mediated glycidylation of all bis/triphenols, afforded innocuous bio-based epoxy precursors GDFxEPO and GTF-EPO. GDFxEPO were then cured with conventional and renewable diamines, and some of them in presence of GTF-EPO. Thermo-mechanical analyses (TGA, DSC, and DMA) and degradation studies in acidic aqueous solutions of the resulting epoxy-amine resins showed excellent thermal stabilities (Td5% = 282–310°C), glass transition temperatures (Tg) ranging from 3 to 62°C, tunable tan α, and tunable degradability, respectively. It has been shown that the thermo-mechanical properties, wettability, and degradability of these epoxy-amine resins, can be finely tailored by judiciously selecting the diamine nature, the GTF-EPO content, and the fatty acid chain length.
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Affiliation(s)
- Louis Hollande
- URD ABI, CEBB, AgroParisTech, Pomacle, France.,UMR GENIAL, AgroParisTech, INRA, Université Paris-Saclay, Massy, France
| | | | - Patrick Balaguer
- Institut de Recherche en Cancérologie de Montpellier, Val d'Aurelle, Montpellier, France
| | - Sandra Domenek
- UMR GENIAL, AgroParisTech, INRA, Université Paris-Saclay, Massy, France
| | - Richard A Gross
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, United States
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Peters KC, Mekala S, Gross RA, Singer KD. Cooperative Self-Assembly of Helical Exciton-Coupled Biosurfactant-Functionalized Porphyrin Chromophores. ACS Appl Bio Mater 2019; 2:1703-1713. [DOI: 10.1021/acsabm.9b00086] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kyle C. Peters
- Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Shekar Mekala
- Center for Biotechnology and Interdisciplinary Studies (CBIS) and New York State Center for Polymer Synthesis, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Richard A. Gross
- Center for Biotechnology and Interdisciplinary Studies (CBIS) and New York State Center for Polymer Synthesis, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Kenneth D. Singer
- Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106, United States
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30
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Hu J, Sanders C, Mekala S, Chen TY, Cunningham MF, Gross RA. A Zwitterionic Polymerizable Surfactant from ω-Hydroxyltetradecanoic Acid Provides Stimuli-Responsive Behavior. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02541] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jing Hu
- Department of Chemical and Biomolecular Engineering, Tandon School of Engineering, New York University, Six Metrotech Center, Brooklyn, New York 11201, United States
| | - Connor Sanders
- Department of Chemical Engineering, Queen’s University, Kingston, Ontario Canada K7L 3N6
| | - Shekar Mekala
- Department of Chemistry and Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI), 1623 15th St., Troy, New York 12180, United States
| | - Tzu-Yin Chen
- Department of Chemical and Biomolecular Engineering, Tandon School of Engineering, New York University, Six Metrotech Center, Brooklyn, New York 11201, United States
| | - Michael F. Cunningham
- Department of Chemical Engineering, Queen’s University, Kingston, Ontario Canada K7L 3N6
| | - Richard A. Gross
- Department of Chemistry and Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI), 1623 15th St., Troy, New York 12180, United States
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Diaz-Rodriguez P, Chen H, Erndt-Marino JD, Liu F, Totsingan F, Gross RA, Hahn MS. Impact of Select Sophorolipid Derivatives on Macrophage Polarization and Viability. ACS Appl Bio Mater 2018; 2:601-612. [DOI: 10.1021/acsabm.8b00799] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Arabiyat AS, Diaz-Rodriguez P, Erndt-Marino JD, Totsingan F, Mekala S, Gross RA, Hahn MS. Effect of Poly(sophorolipid) Functionalization on Human Mesenchymal Stem Cell Osteogenesis and Immunomodulation. ACS Appl Bio Mater 2018; 2:118-126. [DOI: 10.1021/acsabm.8b00434] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Affiliation(s)
- Fei Liu
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
| | - Michael McMaster
- Department of Physics, Case Western Reserve University, 2076 Adelbert Road, Cleveland, Ohio 44106, United States
| | - Shekar Mekala
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
| | - Kenneth Singer
- Department of Physics, Case Western Reserve University, 2076 Adelbert Road, Cleveland, Ohio 44106, United States
| | - Richard A. Gross
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
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34
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Affiliation(s)
- An Su
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Theodore Tyrikos-Ergas
- Department of Chemistry, University of Crete, Voutes University Campus, 70013 Heraklion, Greece
| | - Abhijit N. Shirke
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Yi Zou
- Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Abigail L. Dooley
- Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Ioannis V. Pavlidis
- Department of Chemistry, University of Crete, Voutes University Campus, 70013 Heraklion, Greece
| | - Richard A. Gross
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
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35
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Ziemba AM, Lane KP, San Segundo IM, D'Amato AR, Mason AK, Sexton RJ, Casajus H, Gross RA, Corr DT, Gilbert RJ. Poly-l-lactic acid- co-poly(pentadecalactone) Electrospun Fibers Result in Greater Neurite Outgrowth of Chick Dorsal Root Ganglia in Vitro Compared to Poly-l-lactic Acid Fibers. ACS Biomater Sci Eng 2018; 4:1491-1497. [PMID: 33445306 DOI: 10.1021/acsbiomaterials.8b00013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Electrospun poly-l-lactic acid (PLLA) fiber scaffolds are used to direct axonal extension in neural engineering models. We aimed to improve the efficacy of these fibers in promoting neurite outgrowth by altering surface topography and reducing fiber elastic modulus through the incorporation of a compatibilized blend, poly-l-lactic acid-poly(pentadecalactone) (PLLA-PPDL) into the solution prior to electrospinning. PLLA+PLLA-PPDL fibers had a larger diameter, increased surface nanotopography, and lower glass transition temperature than PLLA fibers but had similar mechanical properties. Increases in neurite outgrowth on PLLA+PLLA-PPDL fibers were observed, potentially due to the significantly increased diameter and surface coverage with nanotopography. Ultimately, these results suggest that greater electrospun fiber diameter and surface topography may contribute to increases in neurite outgrowth.
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Affiliation(s)
- Alexis M Ziemba
- Center for Biotechnology and Interdisciplinary Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
| | - Keith P Lane
- Center for Biotechnology and Interdisciplinary Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
| | | | - Anthony R D'Amato
- Center for Biotechnology and Interdisciplinary Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
| | | | | | | | - Richard A Gross
- Center for Biotechnology and Interdisciplinary Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
| | | | - Ryan J Gilbert
- Center for Biotechnology and Interdisciplinary Sciences, Rensselaer Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United States
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Totsingan F, Centore R, Gross RA. CAL-B catalyzed regioselective bulk polymerization of l-aspartic acid diethyl ester to α-linked polypeptides. Chem Commun (Camb) 2018; 53:4030-4033. [PMID: 28345083 DOI: 10.1039/c7cc01300k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
This paper reports that the bulk polymerization of l-aspartic acid diethyl ester catalyzed by immobilized CAL-B at 80 °C for 24 h gives primarily (∼95%) α-linked poly(l-aspartate) in 70% yield with DPavg = 50 and regioselectivity (α/β) = 94 : 6. Plots of log{[M]0/[M]t} vs. time and DPavgvs. conversion indicate that this polymerization proceeds in a controlled manner by a chain-growth mechanism up to 90% conversion. Thereafter, competition occurs between chain growth and step mechanisms.
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Affiliation(s)
- Filbert Totsingan
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI), 4005B Biotechnology Building, 110 Eighth Street, Troy, New York 12180, USA.
| | - Robert Centore
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI), 4005B Biotechnology Building, 110 Eighth Street, Troy, New York 12180, USA.
| | - Richard A Gross
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI), 4005B Biotechnology Building, 110 Eighth Street, Troy, New York 12180, USA.
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Shirke AN, White C, Englaender JA, Zwarycz A, Butterfoss GL, Linhardt RJ, Gross RA. Stabilizing Leaf and Branch Compost Cutinase (LCC) with Glycosylation: Mechanism and Effect on PET Hydrolysis. Biochemistry 2018; 57:1190-1200. [PMID: 29328676 DOI: 10.1021/acs.biochem.7b01189] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cutinases are polyester hydrolases that show a remarkable capability to hydrolyze polyethylene terephthalate (PET) to its monomeric units. This revelation has stimulated research aimed at developing sustainable and green cutinase-catalyzed PET recycling methods. Leaf and branch compost cutinase (LCC) is particularly suited toward these ends given its relatively high PET hydrolysis activity and thermostability. Any practical enzymatic PET recycling application will require that the protein have kinetic stability at or above the PET glass transition temperature (Tg, i.e., 70 °C). This paper elucidates the thermodynamics and kinetics of LCC conformational and colloidal stability. Aggregation emerged as a major contributor that reduces LCC kinetic stability. In its native state, LCC is prone to aggregation owing to electrostatic interactions. Further, with increasing temperature, perturbation of LCC's tertiary structure and corresponding exposure of hydrophobic domains leads to rapid aggregation. Glycosylation was employed in an attempt to impede LCC aggregation. Owing to the presence of three putative N-glycosylation sites, expression of native LCC in Pichia pastoris resulted in the production of glycosylated LCC (LCC-G). LCC-G showed improved stability to native state aggregation while increasing the temperature for thermal induced aggregation by 10 °C. Furthermore, stabilization against thermal aggregation resulted in improved catalytic PET hydrolysis both at its optimum temperature and concentration.
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Affiliation(s)
- Abhijit N Shirke
- Department of Chemistry and Chemiscal Biology, Rensselaer Polytechnic Institute , Troy, New York 12180, United States.,Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute , Troy, New York 12180, United States
| | - Christine White
- Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute , Troy, New York 12180, United States
| | - Jacob A Englaender
- Department of Biology, Rensselaer Polytechnic Institute , Troy, New York 12180, United States
| | - Allison Zwarycz
- Department of Biology, Rensselaer Polytechnic Institute , Troy, New York 12180, United States
| | - Glenn L Butterfoss
- Center for Genomics and Systems Biology, New York University Abu Dhabi , Abu Dhabi, UAE
| | - Robert J Linhardt
- Department of Chemistry and Chemiscal Biology, Rensselaer Polytechnic Institute , Troy, New York 12180, United States.,Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute , Troy, New York 12180, United States.,Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute , Troy, New York 12180, United States.,Department of Biology, Rensselaer Polytechnic Institute , Troy, New York 12180, United States
| | - Richard A Gross
- Department of Chemistry and Chemiscal Biology, Rensselaer Polytechnic Institute , Troy, New York 12180, United States.,Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute , Troy, New York 12180, United States.,Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute , Troy, New York 12180, United States
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38
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Abstract
Synthesis of sophorolipid-porphyrin conjugates with built-in variations in non-covalent interactions, H–bonding, π–π stacking, and hydrophobic interactions for supramolecular self-assembly.
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Affiliation(s)
- Shekar Mekala
- Center for Biotechnology and Interdisciplinary Studies (CBIS) and New York State Center for Polymer Synthesis
- Rensselaer Polytechnic Institute
- Troy
- USA
| | - Kyle C. Peters
- Department of Physics
- Case Western Reserve University
- Cleveland
- USA
| | | | - Richard A. Gross
- Center for Biotechnology and Interdisciplinary Studies (CBIS) and New York State Center for Polymer Synthesis
- Rensselaer Polytechnic Institute
- Troy
- USA
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39
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He W, Zhu Y, Shirke A, Sun X, Liu J, Gross RA, Koffas MAG, Linhardt RJ, Li M. Expression of chondroitin-4-O-sulfotransferase in Escherichia coli and Pichia pastoris. Appl Microbiol Biotechnol 2017; 101:6919-6928. [DOI: 10.1007/s00253-017-8411-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/23/2017] [Accepted: 06/26/2017] [Indexed: 10/19/2022]
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40
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Abstract
Surfactants are ubiquitous constituents of commercial and biological systems that function based on complex structure-dependent interactions. Sophorolipid (SL) n-alkyl esters (SL-esters) comprise a group of modified naturally derived glycolipids from Candida bombicola. Herein, micellar self-assembly behavior as a function of SL-ester chain length was studied. Surface tensions as low as 31.2 mN/m and critical micelle concentrations (CMCs) as low as 1.1 μM were attained for diacetylated SL-decyl ester (dASL-DE) and SL-octyl ester, respectively. For deacetylated SL-esters, CMC values reach a lower limit at SL-ester chains above n-butyl (SL-BE, 1-3 μM). This behavior of SL-esters with increasing hydrophobic tail length is unlike other known surfactants. Diffusion-ordered spectroscopy (DOSY) and T1 relaxation NMR experiments indicate this behavior is due to a change in intramolecular interactions, which impedes the self-assembly of SL-esters with chain lengths above SL-BE. This hypothesis is supported by micellar thermodynamics where a disruption in trends occurs at n-alkyl ester chain lengths above those of SL-BE and SL-hexyl ester (SL-HE). Diacetylated (dA) SL-esters exhibit an even more unusual trend in that CMC increases from 1.75 to 815 μM for SL-ester chain lengths of dASL-BE and dASL-DE, respectively. Foaming studies, performed to reveal the macroscopic implications of SL-ester micellar behavior, show that the observed instability in foams formed using SL-esters are due to coalescence, which highlights the importance of understanding intermicellar interactions. This work reveals that SL-esters are an important new family of green high-performing surfactants with unique structure-property relationships that can be tuned to optimize micellar characteristics.
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Affiliation(s)
- Amanda Koh
- Department of Chemical & Biological Engineering, ‡Department of Biology, and §Department of Chemistry, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI) , Biotechnology Building, 110 Eighth Street, Troy, New York 12180, United States
| | - Katherine Todd
- Department of Chemical & Biological Engineering, ‡Department of Biology, and §Department of Chemistry, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI) , Biotechnology Building, 110 Eighth Street, Troy, New York 12180, United States
| | - Ezekiel Sherbourne
- Department of Chemical & Biological Engineering, ‡Department of Biology, and §Department of Chemistry, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI) , Biotechnology Building, 110 Eighth Street, Troy, New York 12180, United States
| | - Richard A Gross
- Department of Chemical & Biological Engineering, ‡Department of Biology, and §Department of Chemistry, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute (RPI) , Biotechnology Building, 110 Eighth Street, Troy, New York 12180, United States
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41
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Shirke AN, Butterfoss GL, Saikia R, Basu A, Maria L, Svendsen A, Gross RA. Engineered
Humicola insolens
cutinase for efficient cellulose acetate deacetylation. Biotechnol J 2017; 12. [DOI: 10.1002/biot.201700188] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/02/2017] [Accepted: 05/09/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Abhijit N. Shirke
- Department of Chemistry and Chemical Biology Rensselaer Polytechnic Institute Troy NY USA
- Center for Biotechnology and Interdisciplinary Studies Rensselaer Polytechnic Institute Troy NY USA
| | - Glenn L. Butterfoss
- Center for Genomics and Systems Biology New York University Abu Dhabi Abu Dhabi UAE
| | | | | | | | | | - Richard A. Gross
- Department of Chemistry and Chemical Biology Rensselaer Polytechnic Institute Troy NY USA
- Center for Biotechnology and Interdisciplinary Studies Rensselaer Polytechnic Institute Troy NY USA
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42
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Ziemba AM, Gottipati MK, Totsingan F, Hanes CM, Gross RA, Lennartz MR, Gilbert RJ. Sophorolipid Butyl Ester Diacetate Does Not Affect Macrophage Polarization but Enhances Astrocytic Glial Fibrillary Acidic Protein Expression at Micromolar Concentrations in Vitro. ACS Chem Neurosci 2017; 8:752-758. [PMID: 28140557 DOI: 10.1021/acschemneuro.6b00451] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Peritoneal macrophages (PMACs) and spinal cord astrocytes were exposed to varying concentrations of soluble sophorolipid butyl ester diacetate (SLBEDA) in vitro. Macrophages and astrocytes demonstrated no decrease in viability in response to SLBEDA. Studying pro- and anti-inflammatory genes, PMACs did not show a shift toward a pro-inflammatory phenotype. However, at higher concentrations (3 and 30 μM), astrocytes showed an increase in their expression of glial acidic fibrillary protein. This novel category of compounds poses low risk to PMAC and astrocyte viability; however, the effect on PMAC polarization and astrocyte reactivity requires more elucidation.
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Affiliation(s)
| | - Manoj K. Gottipati
- Department
of Neuroscience and Center for Brain and Spinal Cord Repair, The Ohio State University, 460 W. 12th Avenue, Columbus, Ohio 43210, United States
| | | | - Cheryl M. Hanes
- Center
for Cell Biology and Cancer Research, Albany Medical College, 43 New
Scotland Avenue Albany, New
York 12208, United States
| | | | - Michelle R. Lennartz
- Center
for Cell Biology and Cancer Research, Albany Medical College, 43 New
Scotland Avenue Albany, New
York 12208, United States
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43
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Englaender JA, Zhu Y, Shirke AN, Lin L, Liu X, Zhang F, Gross RA, Koffas MAG, Linhardt RJ. Expression and secretion of glycosylated heparin biosynthetic enzymes using Komagataella pastoris. Appl Microbiol Biotechnol 2016; 101:2843-2851. [PMID: 27975137 DOI: 10.1007/s00253-016-8047-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 11/06/2016] [Revised: 11/28/2016] [Accepted: 12/01/2016] [Indexed: 02/08/2023]
Abstract
Heparin, an anticoagulant drug, is biosynthesized in selected animal cells. The heparin biosynthetic enzymes mainly consist of sulfotransferases and all are integral transmembrane glycoproteins. These enzymes are generally produced in engineered Escherichia coli as without their transmembrane domains as non-glycosylated fusion proteins. In this study, we used the yeast, Komagataella pastoris, to prepare four sulfotransferases involved in heparin biosynthesis as glycoproteins. While the yields of these yeast-expressed enzymes were considerably lower than E. coli-expressed enzymes, these enzymes were secreted into the fermentation media simplifying their purification and were endotoxin free. The activities of these sulfotransferases, expressed as glycoproteins in yeast, were compared to the bacterially expressed proteins. The yeast-expressed sulfotransferase glycoproteins showed improved kinetic properties than the bacterially expressed proteins.
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Affiliation(s)
- Jacob A Englaender
- Department of Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Yuanyuan Zhu
- Department of Chemical Processing Engineering of Forest Products, Nanjing Forestry University, Nanjing, China
| | - Abhijit N Shirke
- Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Lei Lin
- Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Xinyue Liu
- Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Fuming Zhang
- Chemical and Biological Engineering and Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Richard A Gross
- Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Mattheos A G Koffas
- Department of Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA. .,Chemical and Biological Engineering and Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA.
| | - Robert J Linhardt
- Department of Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA. .,Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA. .,Chemical and Biological Engineering and Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA.
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44
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45
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Fiorani A, Totsingan F, Pollicino A, Peng Y, Focarete ML, Gross RA, Scandola M. Peptide Modified Electrospun Glycopolymer Fibers. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600327] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 09/14/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Andrea Fiorani
- Department of Chemistry ‘G. Ciamician’ University of Bologna Via Selmi 2 40126 Bologna Italy
| | - Filbert Totsingan
- Department of Chemistry and Chemical Biology Center for Biotechnology and Interdisciplinary Studies Rensselaer Polytechnic Institute 110 8TH ST Troy NY 12180 USA
| | - Antonio Pollicino
- Department of Industrial Engineering University of Catania 95125 Catania Italy
| | - Yifeng Peng
- Department of Chemistry and Chemical Biology Center for Biotechnology and Interdisciplinary Studies Rensselaer Polytechnic Institute 110 8TH ST Troy NY 12180 USA
- Department of Chemical and Biomolecular Engineering NYU Polytechnic School of Engineering Sixth Metrotech Center Brooklyn NY 11201 USA
| | - Maria Letizia Focarete
- Department of Chemistry ‘G. Ciamician’ University of Bologna Via Selmi 2 40126 Bologna Italy
| | - Richard A. Gross
- Department of Chemistry and Chemical Biology Center for Biotechnology and Interdisciplinary Studies Rensselaer Polytechnic Institute 110 8TH ST Troy NY 12180 USA
| | - Mariastella Scandola
- Department of Chemistry ‘G. Ciamician’ University of Bologna Via Selmi 2 40126 Bologna Italy
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46
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Shirke AN, Su A, Jones JA, Butterfoss GL, Koffas MA, Kim JR, Gross RA. Comparative thermal inactivation analysis ofAspergillus oryzaeandThiellavia terrestriscutinase: Role of glycosylation. Biotechnol Bioeng 2016; 114:63-73. [DOI: 10.1002/bit.26052] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 07/01/2016] [Accepted: 07/11/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Abhijit N. Shirke
- Department of Chemistry and Chemical Biology; Rensselaer Polytechnic Institute; Troy New York
- Center for Biotechnology and Interdisciplinary Studies; Rensselaer Polytechnic Institute; Troy New York
| | - An Su
- Department of Chemistry and Chemical Biology; Rensselaer Polytechnic Institute; Troy New York
- Center for Biotechnology and Interdisciplinary Studies; Rensselaer Polytechnic Institute; Troy New York
| | - J. Andrew Jones
- Center for Biotechnology and Interdisciplinary Studies; Rensselaer Polytechnic Institute; Troy New York
- Department of Chemical and Biological Engineering; Rensselaer Polytechnic Institute; Troy New York
| | - Glenn L. Butterfoss
- Center for Genomics and Systems Biology; New York University Abu Dhabi; Abu Dhabi UAE
| | - Mattheos A.G. Koffas
- Center for Biotechnology and Interdisciplinary Studies; Rensselaer Polytechnic Institute; Troy New York
- Department of Chemical and Biological Engineering; Rensselaer Polytechnic Institute; Troy New York
| | - Jin Ryoun Kim
- Department of Chemical and Biomolecular Engineering; New York University Tandon School of Engineering; Brooklyn New York
| | - Richard A. Gross
- Department of Chemistry and Chemical Biology; Rensselaer Polytechnic Institute; Troy New York
- Center for Biotechnology and Interdisciplinary Studies; Rensselaer Polytechnic Institute; Troy New York
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47
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Affiliation(s)
- Ammar Patel
- Department
of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Anthony Maiorana
- Department
of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Liang Yue
- Department
of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Richard A. Gross
- Department
of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Ica Manas-Zloczower
- Department
of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
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48
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Zhang X, Khalidi O, Kim SY, Wang R, Schultz V, Cress BF, Gross RA, Koffas MAG, Linhardt RJ. Synthesis and biological evaluation of 5,7-dihydroxyflavanone derivatives as antimicrobial agents. Bioorg Med Chem Lett 2016; 26:3089-3092. [PMID: 27210435 PMCID: PMC7927313 DOI: 10.1016/j.bmcl.2016.05.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [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: 03/10/2016] [Revised: 05/02/2016] [Accepted: 05/03/2016] [Indexed: 12/25/2022]
Abstract
A series of 5,7-dihydroxyflavanone derivatives were efficiently synthesized. Their antimicrobial efficacy on Gram-negative, Gram-positive bacteria and yeast were evaluated. Among these compounds, most of the halogenated derivatives exhibited the best antimicrobial activity against Gram-positive bacteria, the yeast Saccharomyces cerevisiae, and the Gram-negative bacterium Vibrio cholerae. The cytotoxicities of these compounds were low as evaluated on HepG2 cells using a cell viability assay. This study suggests that halogenated flavanones might represent promising pharmacological candidates for further drug development.
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Affiliation(s)
- Xing Zhang
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Omar Khalidi
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - So Young Kim
- Biochemistry and Biophysics Graduate Program, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Ruitong Wang
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Victor Schultz
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Brady F Cress
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Richard A Gross
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Department of Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Department of Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Mattheos A G Koffas
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Department of Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
| | - Robert J Linhardt
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Biochemistry and Biophysics Graduate Program, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA; Department of Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
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49
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Maiorana A, Subramaniam B, Centore R, Han X, Linhardt RJ, Gross RA. Synthesis and characterization of an adipic acid-derived epoxy resin. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28142] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anthony Maiorana
- Department of Chemistry and Chemical Biology, New York State Center for Polymer Synthesis; Rensselaer Polytechnic Institute; Troy New York 12180
| | - Bhagyashree Subramaniam
- Department of Chemistry and Chemical Biology, New York State Center for Polymer Synthesis; Rensselaer Polytechnic Institute; Troy New York 12180
| | - Robert Centore
- Department of Chemistry and Chemical Biology, New York State Center for Polymer Synthesis; Rensselaer Polytechnic Institute; Troy New York 12180
| | - Xiaorui Han
- Department of Chemistry and Chemical Biology, New York State Center for Polymer Synthesis; Rensselaer Polytechnic Institute; Troy New York 12180
| | - Robert J. Linhardt
- Department of Chemistry and Chemical Biology, New York State Center for Polymer Synthesis; Rensselaer Polytechnic Institute; Troy New York 12180
| | - Richard A. Gross
- Department of Chemistry and Chemical Biology, New York State Center for Polymer Synthesis; Rensselaer Polytechnic Institute; Troy New York 12180
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50
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Shirke AN, Basore D, Butterfoss GL, Bonneau R, Bystroff C, Gross RA. Toward rational thermostabilization of Aspergillus oryzae cutinase: Insights into catalytic and structural stability. Proteins 2015; 84:60-72. [PMID: 26522152 DOI: 10.1002/prot.24955] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [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: 08/26/2015] [Revised: 10/11/2015] [Accepted: 10/12/2015] [Indexed: 11/10/2022]
Abstract
Cutinases are powerful hydrolases that can cleave ester bonds of polyesters such as poly(ethylene terephthalate) (PET), opening up new options for enzymatic routes for polymer recycling and surface modification reactions. Cutinase from Aspergillus oryzae (AoC) is promising owing to the presence of an extended groove near the catalytic triad which is important for the orientation of polymeric chains. However, the catalytic efficiency of AoC on rigid polymers like PET is limited by its low thermostability; as it is essential to work at or over the glass transition temperature (Tg) of PET, that is, 70 °C. Consequently, in this study we worked toward the thermostabilization of AoC. Use of Rosetta computational protein design software in conjunction with rational design led to a 6 °C improvement in the thermal unfolding temperature (Tm) and a 10-fold increase in the half-life of the enzyme activity at 60 °C. Surprisingly, thermostabilization did not improve the rate or temperature optimum of enzyme activity. Three notable findings are presented as steps toward designing more thermophilic cutinase: (a) surface salt bridge optimization produced enthalpic stabilization, (b) mutations to proline reduced the entropy loss upon folding, and (c) the lack of a correlative increase in the temperature optimum of catalytic activity with thermodynamic stability suggests that the active site is locally denatured at a temperature below the Tm of the global structure.
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Affiliation(s)
- Abhijit N Shirke
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York.,Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York
| | - Danielle Basore
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York.,Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, New York
| | - Glenn L Butterfoss
- Center for Genomics and Systems Biology, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Richard Bonneau
- Center for Genomics and Systems Biology, New York University, New York
| | - Christopher Bystroff
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York.,Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, New York.,Department of Computer Science, Rensselaer Polytechnic Institute, Troy, New York
| | - Richard A Gross
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, New York.,Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York
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