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Paul M, Ghosh B, Biswas S. Human Serum Albumin-Oxaliplatin (Pt(IV)) prodrug nanoparticles with dual reduction sensitivity as effective nanomedicine for triple-negative breast cancer. Int J Biol Macromol 2024; 256:128281. [PMID: 37992920 DOI: 10.1016/j.ijbiomac.2023.128281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 11/14/2023] [Accepted: 11/17/2023] [Indexed: 11/24/2023]
Abstract
Nanomedicines have emerged as a potential strategy to reduce the toxic effect of drugs administered via conventional approaches. Nanomedicines undergo passive and active targeting of the tumor tissues, thereby causing localized drug delivery and reducing drug demand and side effects. Here, we prepared reduction-sensitive oxaliplatin-conjugated human serum albumin nanoparticles with a small size, uniform surfaces, and a satisfactory encapsulation coefficient. The findings of cellular studies demonstrate that utilizing human serum albumin is effective for active tumor targeting. The presence of glutathione-sensitive disulfide linkers in the crosslinking agent and between Pt(IV) and HSA provided dual reduction sensitivity. Cytotoxicity and cell death were enhanced compared to free Oxaliplatin. The outcomes demonstrate that the approach maximized Oxaliplatin's ability to control tumor growth, induced apoptosis, and reduced drug resistance. Therefore, for the first time, our results imply that OXA-SS-HSA NPs were biocompatible, smart, and effective anticancer nanomedicine for triple-negative breast cancer therapy.
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Affiliation(s)
- Milan Paul
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad 500078, Telangana, India
| | - Balaram Ghosh
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad 500078, Telangana, India
| | - Swati Biswas
- Nanomedicine Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science-Pilani, Hyderabad Campus, Jawahar Nagar, Medchal, Hyderabad 500078, Telangana, India.
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Ablat N, Ablimit M, Abudoukadier A, Kadeer B, Maihemuti A, Bakewaiyi A, Tuerxun A, Aihemaiti A. Liver protection and hemostatic effects of medicinal plant Arnebia euchroma (Royle) I.M.Johnst extract in a rat model. JOURNAL OF ETHNOPHARMACOLOGY 2023; 300:115739. [PMID: 36126784 DOI: 10.1016/j.jep.2022.115739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Arnebia euchroma (Royle) I.M.Johnst. (AE) is a Chinese medicinal herb that is traditionally used to treat various circulatory diseases. It exhibits certain effects, such as the promotion of blood circulation and cooling, rash clearance, and detoxification. AIM OF THE STUDY This study was designed to explore the hepatoprotective and hemostatic effects of the ethyl acetate extract of AE in rats with carbon tetrachloride (CCl4)-induced liver injury. MATERIALS AND METHODS Wistar rats were treated via oral gavage with different doses of the ethyl acetate extract of AE (3.5, 7, or 14 g kg-1·day-1) for 14 consecutive days, following which hemostatic and liver function tests were conducted. For the hemostatic tests, the platelet count, blood platelet aggregation, blood platelet adhesion to fibrinogen, platelet factor 4 (PF-4) secretion from blood platelets, prothrombin time (PT), activated partial thromboplastin time (aPTT), thrombin time (TT), and fibrinogen levels were measured at the end of the treatment period. For the liver function tests, 0.25 mL/200 g (1.25 mL kg-1·day-1) of olive oil was injected into the abdominal cavity of the control rats, whereas 15% CCl4 plus olive oil (prescription: 7.5 mL CCl4 + 42.5 olive oil) was injected into that of the treated rats at 1 h after extract administration on day 6, 13, and 20. Additionally, food and water were withheld from all the animals. On the following day, the rats were anesthetized and their albumin, aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), serum glutamic oxaloacetic transaminase (SGOT), serum glutamic pyruvic transaminase (SGPT), gamma-glutamyl transpeptidase (GGT), lactate dehydrogenase (LDH), reactive oxygen species (ROS), methane dicarboxylic aldehyde (MDA), superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH) levels were measured. Glutathione S-transferase (GST), glutathione reductase (GR), and glutathione peroxidase (GPx) levels among the groups were determined using a one-way analysis of variance. RESULTS The platelet count and blood platelet aggregation, blood platelet adhesion to fibrinogen and PF-4 secretion levels were significantly increased in the (3.5 g kg-1 day-1) AE group as compared to those in the control group (all p < 0.001; for the 7 and 14 g kg-1 day-1 AE groups, all p > 0.05, respectively). Although the PT and aPTT were not affected by the AE extract (all p > 0.05), the TT was reduced and the FIB levels were significantly increased in all AE groups (p < 0.05). Liver function tests showed that CCl4 caused significant liver damage, thereby decreasing the albumin, SOD, CAT, GSH, GST, GR, and GPx levels, while increasing the AST, ALT, ALP, SGOT, SGPT, GGT, LDH, ROS, and MDA levels (all p < 0.001). By contrast, treatment with the different doses of AE extract reversed the CCl4 effects on all these parameters. Compared with the levels in the CCl4 group, the GSH and GR levels in the three AE groups (3.5, 7, and 14 g kg-1·day-1) were significantly higher (p < 0.05, p < 0.01, and p < 0.001, respectively), whereas the differences in the other parameters for these three groups were all at the significance levels of p < 0.05, p < 0.05, and p < 0.01, respectively. CONCLUSIONS AE extracts administered orally exhibited hepatoprotective activity by affecting platelet production and blood coagulation and ameliorating liver function-damaging modifications. Specifically, a dosage of 3.5 g kg-1·day-1 resulted in the most optimal effects.
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Affiliation(s)
- Nuramatjan Ablat
- School of Mental Health, Bengbu Medical College, Bengbu, 233030, China.
| | - Mihray Ablimit
- Xinjiang Uygur Autonomous Region Shache County Dunbag Township Health Center, 844700, China.
| | - Abudoureheman Abudoukadier
- Department of Cardiology, Urumqi City Friendship Hospital, Xinjiang Uygur Autonomous Region, Urumqi, 830049, China.
| | - Buhaiqiemu Kadeer
- Department of Gynecology, First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region, Urumqi, 830054, China.
| | - Abulaitijiang Maihemuti
- Department of Laboratory, Uyghur Medicine Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, 830000, China.
| | - Alibati Bakewaiyi
- Department of Laboratory, Uyghur Medicine Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, 830000, China.
| | - Atike Tuerxun
- Department of Pharmacy, Uyghur Medicine Hospital of Hetian Region, Hetian, 848000, China.
| | - Adilijiang Aihemaiti
- Department of Laboratory, Uyghur Medicine Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, 830000, China.
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Kumbham S, Ghosh A, Ghosh B, Biswas S. Human serum albumin-poly(Lactide)-conjugated self-assembly NPs for targeted docetaxel delivery and improved therapeutic efficacy in oral cancer. Int J Biol Macromol 2022; 222:1287-1303. [DOI: 10.1016/j.ijbiomac.2022.09.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 11/16/2022]
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Farrugia A, Mori F. Therapeutic solutions of human albumin - The possible effect of process-induced molecular alterations on clinical efficacy and safety. J Pharm Sci 2022; 111:1292-1308. [PMID: 35276228 DOI: 10.1016/j.xphs.2022.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 03/04/2022] [Accepted: 03/04/2022] [Indexed: 12/14/2022]
Abstract
Human albumin solutions were developed as therapeutic during the Second World War to address blood loss due to battlefield injury. This indication was based on the recognition that albumin provided most of the oncotic capacity of human plasma. For the succeeding sixty years, this formed the basis for the use of albumin in traumatology and emergency medicine. In more recent times, the pharmacological properties arising from albumin's complex structure have become a focus of attention by clinical researchers. In particular, albumin, through anti-inflammatory and anti-oxidant properties, has been proposed as an agent for the treatment of sepsis, cirrhosis and other inflammatory states. Some evidence for these indications has accrued from a number of small clinical trials and observational studies. These studies have not been confirmed in other large trials. Together with other investigators, we have shown that the process of plasma fractionation results in alterations in the structure of albumin, including those parts of the molecule involved in anti-oxidant and anti-inflammatory effects. Albumin products from diverse manufacturers show heterogeneity in their ability to address these effects. In this article, we review the historical development of albumin solutions, pointing out the variations in fractionation chemistries which different manufacturers have adopted. We suggest ways by which the manufacturing processes have contributed to variations in the physico-chemical properties of molecule. We review the outcomes of clinical studies assessing the role of albumin in ameliorating conditions such as sepsis and cirrhosis, and we speculate as to the extent which heterogeneity in the products may have contributed to variable clinical outcomes. Finally, we argue for a change in the perception of the plasma product industry and its regulatory overseers. Historically, albumin has been viewed as a generic commodity, with different preparations being interchangeable in their clinical application. We suggest that this implied biosimilarity is not necessarily applicable for different albumin solutions. The use of albumin, in indications other than its historical role as a plasma expander, can only be validated by clinical investigation of each separate albumin product.
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Affiliation(s)
- Albert Farrugia
- Faculty of Health and Medical Sciences, The University of Western Australia, 35 Stirling Highway, Crawley WA 6009, Perth, Australia.
| | - Filippo Mori
- Kedrion S.p.A., Research and Innovation Department, Via di Fondovalle, Loc., Bolognana 55027, Gallicano (LU), Italy
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Assessment of Therapeutic Antibody Developability by Combinations of In Vitro and In Silico Methods. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2313:57-113. [PMID: 34478132 DOI: 10.1007/978-1-0716-1450-1_4] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Although antibodies have become the fastest-growing class of therapeutics on the market, it is still challenging to develop them for therapeutic applications, which often require these molecules to withstand stresses that are not present in vivo. We define developability as the likelihood of an antibody candidate with suitable functionality to be developed into a manufacturable, stable, safe, and effective drug that can be formulated to high concentrations while retaining a long shelf life. The implementation of reliable developability assessments from the early stages of antibody discovery enables flagging and deselection of potentially problematic candidates, while focussing available resources on the development of the most promising ones. Currently, however, thorough developability assessment requires multiple in vitro assays, which makes it labor intensive and time consuming to implement at early stages. Furthermore, accurate in vitro analysis at the early stage is compromised by the high number of potential candidates that are often prepared at low quantities and purity. Recent improvements in the performance of computational predictors of developability potential are beginning to change this scenario. Many computational methods only require the knowledge of the amino acid sequences and can be used to identify possible developability issues or to rank available candidates according to a range of biophysical properties. Here, we describe how the implementation of in silico tools into antibody discovery pipelines is increasingly offering time- and cost-effective alternatives to in vitro experimental screening, thus streamlining the drug development process. We discuss in particular the biophysical and biochemical properties that underpin developability potential and their trade-offs, review various in vitro assays to measure such properties or parameters that are predictive of developability, and give an overview of the growing number of in silico tools available to predict properties important for antibody development, including the CamSol method developed in our laboratory.
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Thomas G, Frederick E, Thompson L, Bar-Or R, Mulugeta Y, Hausburg M, Roshon M, Mains C, Bar-Or D. LMWF5A suppresses cytokine release by modulating select inflammatory transcription factor activity in stimulated PBMC. J Transl Med 2020; 18:452. [PMID: 33256749 PMCID: PMC7702209 DOI: 10.1186/s12967-020-02626-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/19/2020] [Indexed: 12/24/2022] Open
Abstract
Background Dysregulation of transcription and cytokine expression has been implicated in the pathogenesis of a variety inflammatory diseases. The resulting imbalance between inflammatory and resolving transcriptional programs can cause an overabundance of pro-inflammatory, classically activated macrophage type 1 (M1) and/or helper T cell type 1 (Th1) products, such as IFNγ, TNFα, IL1-β, and IL12, that prevent immune switching to resolution and healing. The low molecular weight fraction of human serum albumin (LMWF5A) is a novel biologic drug that is currently under clinical investigation for the treatment of osteoarthritis and the hyper-inflammatory response associated with COVID-19. This study aims to elucidate transcriptional mechanisms of action involved with the ability of LMWF5A to reduce pro-inflammatory cytokine release. Methods ELISA arrays were used to identify cytokines and chemokines influenced by LMWF5A treatment of LPS-stimulated peripheral blood mononuclear cells (PBMC). The resulting profiles were analyzed by gene enrichment to gain mechanistic insight into the biologic processes and transcription factors (TFs) underlying the identified differentially expressed cytokines. DNA-binding ELISAs, luciferase reporter assays, and TNFα or IL-1β relative potency were then employed to confirm the involvement of enriched pathways and TFs. Results LMWF5A was found to significantly inhibit a distinct set of pro-inflammatory cytokines (TNFα, IL-1β, IL-12, CXCL9, CXCL10, and CXCL11) associated with pro-inflammatory M1/Th1 immune profiles. Gene enrichment analysis also suggests these cytokines are, in part, regulated by NF-κB and STAT transcription factors. Data from DNA-binding and reporter assays support this with LMWF5A inhibition of STAT1α DNA-binding activity as well as a reduction in overall NF-κB-driven luciferase expression. Experiments using antagonists specific for the immunomodulatory and NF-κB/STAT-repressing transcription factors, peroxisome proliferator-activated receptor (PPAR)γ and aryl hydrocarbon receptor (AhR), indicate these pathways are involved in the LMWF5A mechanisms of action by reducing LMWF5A drug potency as measured by TNFα and IL-1β release. Conclusion In this report, we provide evidence that LMWF5A reduces pro-inflammatory cytokine release by activating the immunoregulatory transcription factors PPARγ and AhR. In addition, our data indicate that LMWF5A suppresses NF-κB and STAT1α pro-inflammatory pathways. This suggests that LMWF5A acts through these mechanisms to decrease pro-inflammatory transcription factor activity and subsequent inflammatory cytokine production.
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Affiliation(s)
- Gregory Thomas
- Ampio Pharmaceuticals Inc, 373 Inverness Parkway Suite 200, Englewood, CO, 80122, USA
| | - Elizabeth Frederick
- Ampio Pharmaceuticals Inc, 373 Inverness Parkway Suite 200, Englewood, CO, 80122, USA
| | - Lisa Thompson
- Ampio Pharmaceuticals Inc, 373 Inverness Parkway Suite 200, Englewood, CO, 80122, USA
| | - Raphael Bar-Or
- Ampio Pharmaceuticals Inc, 373 Inverness Parkway Suite 200, Englewood, CO, 80122, USA.,Trauma Research Department, Swedish Medical Center, 501 E. Hampden Ave. Rm 4-454, Englewood, CO, 80113, USA.,Trauma Research Department, St. Anthony Hospital, 11600 W 2nd Pl, Lakewood, CO, 80228, USA.,Trauma Research Department, Penrose Hospital, 2222 N Nevada Ave, Colorado Springs, CO, 80907, USA.,Centura Health Systems, 9100 E. Mineral Cir, Centennial, CO, 80112, USA
| | - Yetti Mulugeta
- Ampio Pharmaceuticals Inc, 373 Inverness Parkway Suite 200, Englewood, CO, 80122, USA
| | - Melissa Hausburg
- Trauma Research Department, Swedish Medical Center, 501 E. Hampden Ave. Rm 4-454, Englewood, CO, 80113, USA.,Trauma Research Department, St. Anthony Hospital, 11600 W 2nd Pl, Lakewood, CO, 80228, USA.,Trauma Research Department, Penrose Hospital, 2222 N Nevada Ave, Colorado Springs, CO, 80907, USA.,Centura Health Systems, 9100 E. Mineral Cir, Centennial, CO, 80112, USA
| | - Michael Roshon
- Trauma Research Department, Penrose Hospital, 2222 N Nevada Ave, Colorado Springs, CO, 80907, USA
| | - Charles Mains
- Centura Health Systems, 9100 E. Mineral Cir, Centennial, CO, 80112, USA
| | - David Bar-Or
- Trauma Research Department, Swedish Medical Center, 501 E. Hampden Ave. Rm 4-454, Englewood, CO, 80113, USA. .,Trauma Research Department, St. Anthony Hospital, 11600 W 2nd Pl, Lakewood, CO, 80228, USA. .,Trauma Research Department, Penrose Hospital, 2222 N Nevada Ave, Colorado Springs, CO, 80907, USA. .,Centura Health Systems, 9100 E. Mineral Cir, Centennial, CO, 80112, USA. .,Department of Molecular Biology, Rocky Vista University, 8401 S Chambers Rd, Parker, CO, 80134, USA.
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Park J, Kim MS, Park T, Kim YH, Shin DH. Crystal structure of pharmaceutical-grade human serum albumin. Int J Biol Macromol 2020; 166:221-228. [PMID: 33190823 DOI: 10.1016/j.ijbiomac.2020.10.152] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/13/2020] [Accepted: 10/20/2020] [Indexed: 01/08/2023]
Abstract
Human serum albumin (HSA) is the most abundant protein in human plasma and plays versatile biological role. HSA has been widely used to treat several diseases and develop biocompatible biomaterials for biomedical applications. However, pharmaceutical-grade HSA (p-HSA) showed the altered oxidative and ligand-binding properties compare to native HSA. To investigate the influences of the manufacturing process on the molecular state of HSA, we determined the first crystal structure of p-HSA using the commercial HSA solution without any defatting step and further purification and carried out mass spectrometry to identify bound ligands. The crystal structure of p-HSA revealed that medium- and long-chain fatty acids and tryptophan are bound to p-HSA and one free cysteine is oxidized to cysteine-sulfenic acid. The mass spectra of p-HSA also confirmed the existence of fatty acids and tryptophan in p-HSA. Our results enhance understanding of the molecular state of p-HSA and can be utilized to produce p-HSA solutions and HSA-based biomaterials that has a higher biorelevance.
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Affiliation(s)
- Jimin Park
- College of Pharmacy, Ewha W. University, Seoul 03760, Republic of Korea; School of Computational Sciences, Korea Institute for Advanced Study, Seoul 02455, Republic of Korea
| | - Mi-Sun Kim
- College of Pharmacy, Ewha W. University, Seoul 03760, Republic of Korea
| | - Taeseong Park
- Biomedical Research Institute, Pusan National University Yangsan Hospital, Yangsan 50612, Republic of Korea
| | - Young Hwan Kim
- Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Republic of Korea
| | - Dong Hae Shin
- College of Pharmacy, Ewha W. University, Seoul 03760, Republic of Korea.
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Hu JJ, He PY, Li YM. Chemical modifications of tryptophan residues in peptides and proteins. J Pept Sci 2020; 27:e3286. [PMID: 32945039 DOI: 10.1002/psc.3286] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 12/27/2022]
Abstract
Chemical protein modifications facilitate the investigation of natural posttranslational protein modifications and allow the design of proteins with new functions. Proteins can be modified at a late stage on amino acid side chains by chemical methods. The indole moiety of tryptophan residues is an emerging target of such chemical modification strategies because of its unique reactivity and low abundance. This review provides an overview of the recently developed methods of tryptophan modification at the peptide and protein levels.
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Affiliation(s)
- Jin-Jian Hu
- Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Pei-Yang He
- Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yan-Mei Li
- Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China.,Beijing Institute for Brain Disorders, Beijing, 100069, China
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Wu L, Mantas A, Gustafsson S, Manukyan L, Mihranyan A. Aggregate Removal Nanofiltration of Human Serum Albumin Solution Using Nanocellulose-Based Filter Paper. Biomedicines 2020; 8:biomedicines8070209. [PMID: 32668723 PMCID: PMC7400174 DOI: 10.3390/biomedicines8070209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/06/2020] [Accepted: 07/10/2020] [Indexed: 02/07/2023] Open
Abstract
This study is dedicated to the rapid removal of protein aggregates and viruses from plasma-derived human serum albumin (HSA) product to reduce the risk of viral contamination and increase biosafety. A two-step filtration approach was implemented to first remove HSA aggregates and then achieve high model virus clearance using a nanocellulose-based filter paper of different thicknesses, i.e., 11 μm (prefilter) and 22 μm (virus filter) at pH 7.4 and room temperature. The pore size distribution of these filters was characterized by nitrogen gas sorption analysis. Dynamic light scattering (DLS) and size-exclusion high performance liquid chromatography (SE-HPLC) were performed to analyze the presence of HSA aggregates in process intermediates. The virus filter showed high clearance of a small-size model virus, i.e., log10 reduction value (LRV) > 5, when operated at 3 and 5 bar, but a distinct decrease in LRV was detected at 1 bar, i.e., LRV 2.65–3.75. The throughput of HSA was also dependent on applied transmembrane pressure as was seen by Vmax values of 110 ± 2.5 L m−2 and 63.6 ± 5.8 L m−2 at 3 bar and 5 bar, respectively. Protein loss was low, i.e., recovery > 90%. A distribution of pore sizes between 40 nm and 60 nm, which was present in the prefilter and absent in the virus filter, played a crucial part in removing the HSA aggregates and minimizing the risk of virus filter fouling. The presented results enable the application of virus removal nanofiltration of HSA in bioprocessing as an alternative to virus inactivation methods based, e.g., on heat treatment.
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Suh MS, Patil SM, Kozak D, Pang E, Choi S, Jiang X, Rodriguez JD, Keire DA, Chen K. An NMR Protocol for In Vitro Paclitaxel Release from an Albumin-Bound Nanoparticle Formulation. AAPS PharmSciTech 2020; 21:136. [PMID: 32419122 DOI: 10.1208/s12249-020-01669-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 03/26/2020] [Indexed: 01/24/2023] Open
Abstract
The paclitaxel protein-bound particles for injectable suspension (marketed under the brand name Abraxane®) contains nanosized complexes of paclitaxel and albumin. The molecular interaction between paclitaxel and albumin within the higher-order nanostructure is analytically challenging to assess, as is any correlation of differences to differences in therapeutic effect. However, because the higher-order nanostructures may affect the paclitaxel release, a suitable in vitro assay to detect potential differences in paclitaxel release between comparator lots and products is desirable. Herein, solution NMR spectroscopy with a T2-filtering technique was developed to detect paclitaxel signal while suppressing albumin signals to follow the released paclitaxel in the NMR tube upon dilution. The non-invasive nature of NMR allows for precise measurement of a full range of dilution-induced drug release percentage from 14 to 92% without any sample extraction. The critical concentration of the drug product (DP) at 50% of release was 0.63 ± 0.04 mg/mL in PBS buffer. In addition, 2D diffusion ordered NMR spectroscopy (DOSY) results revealed that the released paclitaxel experiencing slightly slowed diffusion rates than free paclitaxel, which was attributed to paclitaxel in equilibrium with albumin-bound states. Collectively, the dilution-based NMR method offered an analytical approach to investigate physicochemical attributes of complex injectable products with minimal needed sample preparation and perturbation to nanoparticle formulation.
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Edwards TH, Koenig A, Thomas L, Sadik A, Edwards JL. Purification of canine albumin by heat denaturation in a plasma bag. J Vet Emerg Crit Care (San Antonio) 2020; 30:264-271. [PMID: 32108424 DOI: 10.1111/vec.12928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 05/17/2018] [Accepted: 05/24/2018] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To design and evaluate a method to purify canine albumin from fresh frozen plasma (FFP) or stored plasma (SP) in a manner that could be applied clinically. DESIGN In vitro experimental study. SETTING FDA licensed Blood Bank Laboratory and University biochemistry laboratory. ANIMALS None. INTERVENTIONS Using equipment that is typically found in veterinary blood banks, plasma bags were thawed, injected with the heat stabilizing agent, sodium caprylate, and then heated and acidified to denature all but albumin proteins. Albumin-rich supernatant was removed, the pH was neutralized, and then pasteurized and refrigerated. Albumin and total plasma protein concentrations were measured and the product was cultured for bacteria at 0, 7, 14, 30, and 60 days post-processing. MEASUREMENTS AND MAIN RESULTS Seventeen bags of plasma were analyzed for purity, yield, and sterility of the finished albumin product. Bags were divided into categories based on the age of the frozen plasma. Mean yield of albumin for all bags was 77.3% and mean purity was 91.2%. There was no difference between old stored plasma, new stored plasma, and FFP with regard to yield (P = 0.31) or purity (P = 0.24) based on one-way analysis of variances. Overall 1 of 17 bags of plasma (5.9%) tested positive for bacterial contamination on day 60 after processing. CONCLUSIONS Sodium caprylate is able to stabilize canine albumin enabling it to withstand heating that denatures other plasma proteins. The resulting albumin product is of sufficient quality to potentially be used therapeutically as a colloidal resuscitative fluid. Further study is needed into its safety and effect in dogs.
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Affiliation(s)
- Thomas H Edwards
- U.S. Army Institute of Surgical Research, Fort Sam Houston, TX, USA
| | - Amie Koenig
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - LeNae Thomas
- Armed Services Blood Bank Center - Pacific, Camp Foster, Okinawa, Japan
| | - Anjam Sadik
- Department of Chemistry, Saint Louis University, St. Louis, MO, USA
| | - James L Edwards
- Department of Chemistry, Saint Louis University, St. Louis, MO, USA
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Bar-Or D, Thomas G, Rael LT, Frederick E, Hausburg M, Bar-Or R, Brody E. On the Mechanisms of Action of the Low Molecular Weight Fraction of Commercial Human Serum Albumin in Osteoarthritis. Curr Rheumatol Rev 2020; 15:189-200. [PMID: 30451114 PMCID: PMC6791032 DOI: 10.2174/1573397114666181119121519] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 11/02/2018] [Accepted: 11/03/2018] [Indexed: 01/05/2023]
Abstract
The low molecular weight fraction of commercial human serum albumin (LMWF5A) has been shown to successfully relieve pain and inflammation in severe osteoarthritis of the knee (OAK). LMWF5A contains at least three active components that could account for these antiinflammatory and analgesic effects. We summarize in vitro experiments in bone marrow-derived mesenchymal stem cells, monocytic cell lines, chondrocytes, peripheral blood mononuclear cells, fibroblast-like synoviocytes, and endothelial cells on the biochemistry of anti-inflammatory changes induced by LMWF5A. We then look at four of the major pathways that cut across cell-type considerations to examine which biochemical reactions are affected by mTOR, COX-2, CD36, and AhR pathways. All three components show anti-inflammatory activities in at least some of the cell types. The in vitro experiments show that the effects of LMWF5A in chondrocytes and bone marrow- derived stem cells in particular, coupled with recent data from previous clinical trials of single and multiple injections of LMWF5A into OAK patients demonstrated improvements in pain, function, and Patient Global Assessment (PGA), as well as high responder rates that could be attributed to the multiple mechanism of action (MOA) pathways are summarized here. In vitro and in vivo data are highly suggestive of LMWF5A being a disease-modifying drug for OAK.
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Affiliation(s)
- David Bar-Or
- Trauma Research Department, Swedish Medical Center, 501 E. Hampden Avenue, Englewood, CO 80113, United States.,Trauma Research Department, St. Anthony Hospital, 1600 W. 2nd Place, Lakewood, CO 80228, United States.,Trauma Research Department, Medical City Plano, 3901 W. 15th Street, Plano, TX 75075, United States.,Trauma Research Department, Penrose Hospital, 2222 N. Nevada Avenue, Colorado Springs, CO 80907, United States.,Trauma Research Department, Research Medical Center, 2315 E. Meyer Boulevard, Kansas City, MO 64132, United States.,Trauma Research Department, Wesley Medical Center, 550 N. Hillside Street, Witchita, KS 67214, United States.,Ampio Pharmaceuticals, Inc., 373 Inverness Parkway, #200, Englewood, CO 80112, United States
| | - Gregory Thomas
- Trauma Research Department, Swedish Medical Center, 501 E. Hampden Avenue, Englewood, CO 80113, United States.,Trauma Research Department, St. Anthony Hospital, 1600 W. 2nd Place, Lakewood, CO 80228, United States.,Trauma Research Department, Medical City Plano, 3901 W. 15th Street, Plano, TX 75075, United States.,Trauma Research Department, Penrose Hospital, 2222 N. Nevada Avenue, Colorado Springs, CO 80907, United States.,Trauma Research Department, Research Medical Center, 2315 E. Meyer Boulevard, Kansas City, MO 64132, United States.,Trauma Research Department, Wesley Medical Center, 550 N. Hillside Street, Witchita, KS 67214, United States.,Ampio Pharmaceuticals, Inc., 373 Inverness Parkway, #200, Englewood, CO 80112, United States
| | - Leonard T Rael
- Trauma Research Department, Swedish Medical Center, 501 E. Hampden Avenue, Englewood, CO 80113, United States.,Trauma Research Department, St. Anthony Hospital, 1600 W. 2nd Place, Lakewood, CO 80228, United States.,Trauma Research Department, Medical City Plano, 3901 W. 15th Street, Plano, TX 75075, United States.,Trauma Research Department, Penrose Hospital, 2222 N. Nevada Avenue, Colorado Springs, CO 80907, United States.,Trauma Research Department, Research Medical Center, 2315 E. Meyer Boulevard, Kansas City, MO 64132, United States.,Trauma Research Department, Wesley Medical Center, 550 N. Hillside Street, Witchita, KS 67214, United States
| | - Elizabeth Frederick
- Trauma Research Department, Swedish Medical Center, 501 E. Hampden Avenue, Englewood, CO 80113, United States.,Trauma Research Department, St. Anthony Hospital, 1600 W. 2nd Place, Lakewood, CO 80228, United States.,Trauma Research Department, Medical City Plano, 3901 W. 15th Street, Plano, TX 75075, United States.,Trauma Research Department, Penrose Hospital, 2222 N. Nevada Avenue, Colorado Springs, CO 80907, United States.,Trauma Research Department, Research Medical Center, 2315 E. Meyer Boulevard, Kansas City, MO 64132, United States.,Trauma Research Department, Wesley Medical Center, 550 N. Hillside Street, Witchita, KS 67214, United States.,Ampio Pharmaceuticals, Inc., 373 Inverness Parkway, #200, Englewood, CO 80112, United States
| | - Melissa Hausburg
- Trauma Research Department, Swedish Medical Center, 501 E. Hampden Avenue, Englewood, CO 80113, United States.,Trauma Research Department, St. Anthony Hospital, 1600 W. 2nd Place, Lakewood, CO 80228, United States.,Trauma Research Department, Medical City Plano, 3901 W. 15th Street, Plano, TX 75075, United States.,Trauma Research Department, Penrose Hospital, 2222 N. Nevada Avenue, Colorado Springs, CO 80907, United States.,Trauma Research Department, Research Medical Center, 2315 E. Meyer Boulevard, Kansas City, MO 64132, United States.,Trauma Research Department, Wesley Medical Center, 550 N. Hillside Street, Witchita, KS 67214, United States
| | - Raphael Bar-Or
- Trauma Research Department, Swedish Medical Center, 501 E. Hampden Avenue, Englewood, CO 80113, United States.,Trauma Research Department, St. Anthony Hospital, 1600 W. 2nd Place, Lakewood, CO 80228, United States.,Trauma Research Department, Medical City Plano, 3901 W. 15th Street, Plano, TX 75075, United States.,Trauma Research Department, Penrose Hospital, 2222 N. Nevada Avenue, Colorado Springs, CO 80907, United States.,Trauma Research Department, Research Medical Center, 2315 E. Meyer Boulevard, Kansas City, MO 64132, United States.,Trauma Research Department, Wesley Medical Center, 550 N. Hillside Street, Witchita, KS 67214, United States.,Ampio Pharmaceuticals, Inc., 373 Inverness Parkway, #200, Englewood, CO 80112, United States
| | - Edward Brody
- SomaLogic, Inc., 2945 Wilderness Place, Boulder, CO 80301, United States
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13
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Tramarin A, Tedesco D, Naldi M, Baldassarre M, Bertucci C, Bartolini M. New insights into the altered binding capacity of pharmaceutical-grade human serum albumin: site-specific binding studies by induced circular dichroism spectroscopy. J Pharm Biomed Anal 2019; 162:171-178. [DOI: 10.1016/j.jpba.2018.09.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/03/2018] [Accepted: 09/11/2018] [Indexed: 12/16/2022]
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14
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Dion MZ, Leiske D, Sharma VK, Zuch de Zafra CL, Salisbury CM. Mitigation of Oxidation in Therapeutic Antibody Formulations: a Biochemical Efficacy and Safety Evaluation of N-Acetyl-Tryptophan and L-Methionine. Pharm Res 2018; 35:222. [PMID: 30280329 DOI: 10.1007/s11095-018-2467-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 07/30/2018] [Indexed: 12/15/2022]
Abstract
PURPOSE Biotherapeutics can be susceptible to oxidation during manufacturing and storage. Free L-methionine is known to protect methionine residues in proteins from oxidation. Similarly, free tryptophan and other indole derivatives have been shown to protect tryptophan residues from oxidation. N-acetyl-DL-tryptophan was previously identified as a potentially superior antioxidant to tryptophan as it has a lower oxidation potential and produces less peroxide upon light exposure. This study sought to confirm the antioxidant efficacy and safety of N-acetyl-DL-tryptophan and L-methionine as formulation components for biotherapeutic drugs. METHODS Antibodies were subjected to AAPH and light exposure in the presence of N-acetyl-DL-tryptophan and L-methionine. Oxidation in relevant CDR and Fc residues was quantified by peptide map. In silico, in vitro, and in vivo studies were performed to evaluate the safety of N-acetyl-DL-tryptophan and L-methionine. RESULTS Peptide mapping demonstrated that N-acetyl-DL-tryptophan was effective at protecting tryptophans from AAPH stress, and that the combination of N-acetyl-DL-tryptophan and L-methionine protected both tryptophan and methionine from AAPH stress. The safety assessment suggested an acceptable safety profile for both excipients. CONCLUSIONS N-acetyl-tryptophan and L-methionine effectively reduce the oxidation of susceptible tryptophan and methionine residues in antibodies and are safe for use in parenteral biotherapeutic formulations.
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Affiliation(s)
- Michelle Z Dion
- Early Stage Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Danielle Leiske
- Early Stage Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
- Seattle Genetics, Bothell, Washington, USA
| | - Vikas K Sharma
- Late Stage Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Christina L Zuch de Zafra
- Safety Assessment, Genentech, Inc., 1 DNA Way, South San Francisco, California, 94080, USA.
- Amgen, South San Francisco, California, USA.
| | - Cleo M Salisbury
- Early Stage Pharmaceutical Development, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA.
- Protein Analytical Chemistry, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA.
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15
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Study on interaction between human salivary α-amylase and sorghum procyanidin tetramer: Binding characteristics and structural analysis. Int J Biol Macromol 2018; 118:1136-1141. [DOI: 10.1016/j.ijbiomac.2018.06.189] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/22/2018] [Accepted: 06/30/2018] [Indexed: 11/24/2022]
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16
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Rael LT, Bar-Or R, Banton KL, Mains CW, Roshon M, Tanner AH, Lieser MJ, Acuna DL, Bar-Or D. The anti-inflammatory effect of LMWF5A and N-acetyl kynurenine on macrophages: Involvement of aryl hydrocarbon receptor in mechanism of action. Biochem Biophys Rep 2018; 15:61-67. [PMID: 30073204 PMCID: PMC6068081 DOI: 10.1016/j.bbrep.2018.06.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 05/25/2018] [Accepted: 06/26/2018] [Indexed: 11/04/2022] Open
Abstract
After a traumatic insult, macrophages can become activated leading to general inflammation at the site of injury. Activated macrophages are partially regulated by the aryl hydrocarbon receptor (AhR) which when activated suppresses inflammation by limiting the secretion of pro-inflammatory cytokines and promoting the over expression of immuno-modulatory mediators. This study aims to determine whether the low molecular weight fraction of 5% human serum albumin (LMWF5A) and N-acetyl kynurenine (NAK), an N-acetyl tryptophan (NAT) breakdown product in LMWF5A, can regulate inflammation by inhibiting macrophage activation through the AhR since kynurenine is a known AhR agonist. Using LCMS, we demonstrate that NAT is non-enzymatically degraded during accelerated aging of LMWF5A with high heat accelerating degradation. More importantly, NAK is a major degradation product found in LMWF5A. THP-1 monocytes were differentiated into macrophages using phorbol 12-myristate 13-acetate (PMA) and pre-treated with 2-fold dilutions of LMWF5A or synthetic NAK with or without an AhR antagonist (CH223191) prior to overnight stimulation with lipopolysaccharide (LPS). Treatment with LMWF5A caused a 50–70% decrease in IL-6 release throughout the dilution series. A dose-response inhibition of IL-6 release was observed for NAK with maximal inhibition (50%) seen at the highest NAK concentration. Finally, an AhR antagonist partially blocked the anti-inflammatory effect of LMWF5A while completely blocking the effect of NAK. A similar inhibitory effect was observed for CXCL-10, but the AhR antagonist was not effective suggesting additional mechanisms for CXCL-10 release. These preliminary findings suggest that LMWF5A and NAK partially promote the suppression of activated macrophages via the AhR receptor. Therefore, LMWF5A, which contains NAK, is potentially a useful therapeutic in medical conditions where inflammation is prevalent such as trauma, sepsis, and wound healing. LMWF5A contains degradation products of N-acetyl tryptophan (NAT). A major degradation product of NAT in LMWF5A is N-acetyl kynurenine (NAK). LMWF5A and NAK decrease IL-6 and CXCL-10 release from activated macrophages. AhR is partially involved in the mechanism of action for LMWF5A and NAK. The anti-inflammatory properties of LMWF5A are also AhR-independent.
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Affiliation(s)
- Leonard T Rael
- Swedish Medical Center, Englewood, CO 80113, USA.,St. Anthony Hospital, Lakewood, CO 80228, USA.,Medical City Plano, Plano, TX 75075, USA.,Penrose Hospital, Colorado Springs, CO 80907, USA.,Research Medical Center, Kansas City, MO 64132, USA.,Wesley Medical Center, Wichita, KS 67214, USA
| | - Raphael Bar-Or
- Swedish Medical Center, Englewood, CO 80113, USA.,St. Anthony Hospital, Lakewood, CO 80228, USA.,Medical City Plano, Plano, TX 75075, USA.,Penrose Hospital, Colorado Springs, CO 80907, USA.,Research Medical Center, Kansas City, MO 64132, USA.,Wesley Medical Center, Wichita, KS 67214, USA.,Ampio Pharmaceuticals, Inc., Englewood, CO 80112, USA
| | | | | | | | | | | | | | - David Bar-Or
- Swedish Medical Center, Englewood, CO 80113, USA.,St. Anthony Hospital, Lakewood, CO 80228, USA.,Medical City Plano, Plano, TX 75075, USA.,Penrose Hospital, Colorado Springs, CO 80907, USA.,Research Medical Center, Kansas City, MO 64132, USA.,Wesley Medical Center, Wichita, KS 67214, USA.,Ampio Pharmaceuticals, Inc., Englewood, CO 80112, USA.,Rocky Vista University, Parker, CO 80134, USA
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17
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Zarei I, Brown DG, Nealon NJ, Ryan EP. Rice Bran Metabolome Contains Amino Acids, Vitamins & Cofactors, and Phytochemicals with Medicinal and Nutritional Properties. RICE (NEW YORK, N.Y.) 2017; 10:24. [PMID: 28547736 PMCID: PMC5453916 DOI: 10.1186/s12284-017-0157-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 04/21/2017] [Indexed: 05/06/2023]
Abstract
BACKGROUND Rice bran is a functional food that has shown protection against major chronic diseases (e.g. obesity, diabetes, cardiovascular disease and cancer) in animals and humans, and these health effects have been associated with the presence of bioactive phytochemicals. Food metabolomics uses multiple chromatography and mass spectrometry platforms to detect and identify a diverse range of small molecules with high sensitivity and precision, and has not been completed for rice bran. RESULTS This study utilized global, non-targeted metabolomics to identify small molecules in rice bran, and conducted a comprehensive search of peer-reviewed literature to determine bioactive compounds. Three U.S. rice varieties (Calrose, Dixiebelle, and Neptune), that have been used for human dietary intervention trials, were assessed herein for bioactive compounds that have disease control and prevention properties. The profiling of rice bran by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) and gas chromatography-mass spectrometry (GC-MS) identified 453 distinct phytochemicals, 209 of which were classified as amino acids, cofactors & vitamins, and secondary metabolites, and were further assessed for bioactivity. A scientific literature search revealed 65 compounds with health properties, 16 of which had not been previously identified in rice bran. This suite of amino acids, cofactors & vitamins, and secondary metabolites comprised 46% of the identified rice bran metabolome, which substantially enhanced our knowledge of health-promoting rice bran compounds provided during dietary supplementation. CONCLUSION Rice bran metabolite profiling revealed a suite of biochemical molecules that can be further investigated and exploited for multiple nutritional therapies and medical food applications. These bioactive compounds may also be biomarkers of dietary rice bran intake. The medicinal compounds associated with rice bran can function as a network across metabolic pathways and this metabolite network may occur via additive and synergistic effects between compounds in the food matrix.
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Affiliation(s)
- Iman Zarei
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
- Institute of Human Nutrition and Food, College of Human Ecology, University of the Philippines Los Baños, Los Baños, 4031 Laguna Philippines
| | - Dustin G. Brown
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
| | - Nora Jean Nealon
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
| | - Elizabeth P. Ryan
- Department of Environmental & Radiological Health Sciences, College of Veterinary Medicine and Biological Sciences, Colorado State University, 1680 Campus Delivery, Fort Collins, CO 80523 USA
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18
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Characterization of N-Acetyl-Tryptophan Degradation in Protein Therapeutic Formulations. J Pharm Sci 2017; 106:3499-3506. [DOI: 10.1016/j.xphs.2017.08.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 07/31/2017] [Accepted: 08/17/2017] [Indexed: 10/19/2022]
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19
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Gonzalez UA, Menendez C, Saitua HA, Rigau J. Multiple response optimization of heat shock process for separation of bovine serum albumin from plasma. SEP SCI TECHNOL 2017. [DOI: 10.1080/01496395.2017.1304421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- U. A. Gonzalez
- Instituto de Investigaciones en Tecnología Química (INTEQUI-CONICET), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, Argentina
| | - C. Menendez
- Instituto de Investigaciones en Tecnología Química (INTEQUI-CONICET), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, Argentina
| | - H. A. Saitua
- Instituto de Investigaciones en Tecnología Química (INTEQUI-CONICET), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, Argentina
| | - J. Rigau
- Instituto de Investigaciones en Tecnología Química (INTEQUI-CONICET), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, Argentina
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20
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Kawai A, Chuang VT, Kouno Y, Yamasaki K, Miyamoto S, Anraku M, Otagiri M. Crystallographic analysis of the ternary complex of octanoate and N -acetyl- l -methionine with human serum albumin reveals the mode of their stabilizing interactions. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2017; 1865:979-984. [DOI: 10.1016/j.bbapap.2017.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/27/2017] [Accepted: 04/29/2017] [Indexed: 12/20/2022]
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21
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Miyamura S, Imafuku T, Anraku M, Taguchi K, Yamasaki K, Tominaga Y, Maeda H, Ishima Y, Watanabe H, Otagiri M, Maruyama T. Comparison of Posttranslational Modification and the Functional Impairment of Human Serum Albumin in Commercial Preparations. J Pharm Sci 2016; 105:1043-9. [PMID: 26928399 DOI: 10.1016/j.xphs.2015.12.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 12/11/2015] [Accepted: 12/15/2015] [Indexed: 02/08/2023]
Abstract
On account of its long circulating half-life, human serum albumin (HSA) is susceptible to posttranslational modifications that can alter its functions. Here, we comprehensively compared the degree of posttranslational modifications with the functional impairment of HSA derived from 5 different commercially available albumin preparations and clarified their relationships. We used electrospray ionization-time of flight mass spectrometry to evaluate the degree of posttranslational modification of the entire HSA molecule that was associated with disease development and found that the fraction of Cys34-cysteinylated HSA (Cys-Cys34-HSA), a major form of oxidative modification, varied substantially among the albumin preparations. Meanwhile, no remarkable difference was found in the degree of glycated or N-terminal truncated HSA among the preparations tested. The nonosmotic pressure maintenance functions of HSA, such as its antioxidative and ligand-binding activities significantly differed among the preparations. Interestingly, the alternations of these functions showed a significantly negative correlation only with the Cys-Cys34-HSA fraction. These findings suggest that the Cys-Cys34-HSA fraction, as estimated by electrospray ionization-time of flight mass spectrometry can be used as a predictive marker for the functional impairment of albumin preparations and that it would be preferable to use albumin preparations with higher contents of functionally effective albumin that correspond to a lower degree of cysteinylation of Cys34 in clinical practice.
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Affiliation(s)
- Shigeyuki Miyamura
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Tadashi Imafuku
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Makoto Anraku
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | - Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | - Yuna Tominaga
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Hitoshi Maeda
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Yu Ishima
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan; Center for Clinical Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Hiroshi Watanabe
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan; Center for Clinical Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan; Center for Clinical Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan.
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22
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Baldursdottir S, Tauhaybeche M, Pajander J, Bukrinski JT, Jorgensen L. Screening of formulation parameters for stabilizing recombinant human serum albumin (rHSA) in liquid formulations. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Kouno Y, Anraku M, Yamasaki K, Okayama Y, Iohara D, Nakamura H, Maruyama T, Hirayama F, Kragh-Hansen U, Otagiri M. N-acetyl-L-methionine is a superior protectant of human serum albumin against post-translational oxidation as compared to N-acetyl-L-tryptophan. Biochem Biophys Rep 2016; 6:266-274. [PMID: 28955884 PMCID: PMC5600351 DOI: 10.1016/j.bbrep.2016.04.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 04/20/2016] [Accepted: 04/25/2016] [Indexed: 12/25/2022] Open
Abstract
Sodium octanoate and N-acetyl-L-tryptophan (N-AcTrp) are widely used as stabilizers during pasteurization and storage of albumin products. However, as compared with N-AcTrp, N-acetyl-L-methionine (N-AcMet) is superior in protecting albumin exposed to light during storage. Here, we examine, whether N-AcMet also is better than N-AcTrp to protect albumin against oxidation. Recombinant human serum albumin (rHSA) without and with N-AcMet or N-AcTrp was oxidized by using chloramine-T (CT) as a model compound for mimicking oxidative stress. Oxidation of rHSA was examined by determining carbonyl groups and advanced oxidation protein products. Structural changes were studied by native-PAGE, circular dichroism, intrinsic fluorescence and differential scanning calorimetry. The anti-oxidant capacity of CT-treated rHSA was quantified by its ability to scavenge peroxynitrite and the hydroxyl radical. The pharmacokinetics of indocyanine green-labeled albumin preparations was studied in male mice. We found that the number of chemical modifications and the structural changes of rHSA were significantly smaller in the presence of N-AcMet than in the presence of N-AcTrp. The anti-oxidant properties of CT-exposed rHSA were best protected by adding N-AcMet. Finally, N-AcMet is superior in preserving the normal pharmacokinetics of rHSA. Thus, N-AcMet is superior to N-AcTrp in protecting albumin preparations against oxidation. In addition, N-AcMet is probable also useful for protecting other proteins. Therefore, N-AcMet should be useful as a new and effective stabilizer and antioxidant for albumin isolated from blood, rHSA, albumin-fusion proteins and for preparations of rHSA-therapeutic complexes.
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Affiliation(s)
- Yousuke Kouno
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
- Pharma Daiwa Yuge Pharmacy, Kumamoto City, Japan
| | - Makoto Anraku
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | | | - Daisuke Iohara
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Hedeaki Nakamura
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Toru Maruyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Fumitoshi Hirayama
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | | | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
- DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
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24
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Plantier JL, Duretz V, Devos V, Urbain R, Jorieux S. Comparison of antioxidant properties of different therapeutic albumin preparations. Biologicals 2016; 44:226-233. [DOI: 10.1016/j.biologicals.2016.04.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 03/04/2016] [Accepted: 04/11/2016] [Indexed: 01/29/2023] Open
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25
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Faroongsarng D. Assessment of the Dissociation Energetics of Some Selected Ligand Drugs Bound on Human Serum Albumin by Differential Scanning Calorimetry. AAPS PharmSciTech 2016; 17:474-81. [PMID: 26246411 DOI: 10.1208/s12249-015-0372-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 07/15/2015] [Indexed: 11/30/2022] Open
Abstract
Drug-protein binding may play a role in the thermal energetics of protein denaturation and could lead to the determination of its equilibrium dissociation parameter. The aim of this study was to assess the energetics of a drug that was bound to human serum albumin (HSA) during thermal denaturation. Drugs that were bound at a single high-affinity primary binding site on HSA, including diazepam and ibuprofen, were employed. Commercial HSA was treated with charcoal to remove stabilizers and adjusted to 20% w/v in a pH 7.4 buffered solution. Serial concentrations of individual drugs up to 0.16 mmole/g-protein were added to the cleaned HSA solutions whereas diazepam was added to a commercial HSA solution. Samples were subjected to differential scanning calorimetry (DSC) set to run from 37 to 90°C at 3.0°C/min. Binding of the drug slightly increased the denaturing temperature of the cleaned HSA due to a shift in the equilibrium toward the native protein bound with the drug. Diazepam depressed the denaturing temperature of the commercial HSA by competing with the stabilizers already bound to the primary site of the HSA. This yielded not only the HSA-stabilizer but also the HSA-diazepam type complexes that exhibited a different denaturation process. A rational approximation of the Lumry-Eyring protein denaturation model was used to treat the DSC endotherms. The approximated scheme: [Formula: see text] was successfully fitted to the data. It was used to determine the dissociation parameters for diazepam and ibuprofen bound to the HSA. These results were comparable to those obtained from other methods.
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26
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Short-term hypothermic preservation of human testicular tissue: the effect of storage medium and storage period. Fertil Steril 2016; 105:1162-1169.e5. [PMID: 26868991 DOI: 10.1016/j.fertnstert.2016.01.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 01/12/2016] [Accepted: 01/15/2016] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To optimize the storage medium and period during short-term preservation of human testicular tissue. DESIGN First, human testicular tissue fragments from five patients were kept at 4°C for 3 days in different media (Dulbecco's modified Eagle's medium [DMEM]/F12, DMEM/F12 + 20% human serum albumin [HSA], DMEM/F12 + 50% HSA, and HSA). Secondly, fragments from four patients were kept in DMEM/F12 for 3, 5, or 8 days at 4°C. SETTING Laboratory research environment. PATIENT(S) Adult human testicular tissue. INTERVENTION(S) Biopsy and short-term storage of human testicular tissue at different conditions. MAIN OUTCOME MEASURE(S) Viability, general tissue morphology, Sertoli cell morphology, number of spermatogonia, and apoptosis. The experimental conditions were compared with fresh control samples. RESULT(S) Storing human testicular tissue in DMEM/F12 did not alter any of the investigated parameters. In most conditions containing HSA, tissue morphology was altered, and in all of them the Sertoli cell morphology was affected. The number of spermatogonia was only affected when tissue was stored in 100% HSA. In the second part of the study, tissue morphology deteriorated significantly as of 5 days of hypothermic storage, and Sertoli cell morphology after 8 days. CONCLUSION(S) Human testicular tissue can be preserved for 3 days at 4°C in DMEM/F12 without altering tissue morphology, Sertoli cell morphology, number of spermatogonia, or number of apoptotic cells.
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Upadhyay A, Dalvi SV. Synthesis, characterization and stability of BSA-encapsulated microbubbles. RSC Adv 2016. [DOI: 10.1039/c5ra24304a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, we present an account of experimental studies performed for the synthesis, shelf stability andin vitrostability of microbubbles made from perfluorobutane (PFB) gas and coated in a shell of Bovine Serum Albumin (BSA).
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Affiliation(s)
- Awaneesh Upadhyay
- Chemical Engineering
- Indian Institute of Technology Gandhinagar
- Chandkheda 382424
- India
| | - Sameer V. Dalvi
- Chemical Engineering
- Indian Institute of Technology Gandhinagar
- Chandkheda 382424
- India
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Takahashi T, Terada T, Arikawa H, Kizaki K, Terawaki H, Imai H, Itoh Y, Era S. Quantitation of Oxidative Modifications of Commercial Human Albumin for Clinical Use. Biol Pharm Bull 2016; 39:401-8. [DOI: 10.1248/bpb.b15-00843] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Teppei Takahashi
- Department of Physiology & Biophysics, Gifu University Graduate School of Medicine
| | - Tomoyoshi Terada
- Department of Physiology & Biophysics, Gifu University Graduate School of Medicine
| | - Hajime Arikawa
- Department of Early Childhood Education, Chubu-gakuin College
| | - Kazuha Kizaki
- Department of Orthopedic Surgery, Kyoto Shimogamo Hospital
| | | | - Hajime Imai
- Department of Health and Physical Education, Faculty of Education, Gifu University
| | | | - Seiichi Era
- Department of Physiology & Biophysics, Gifu University Graduate School of Medicine
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Oki S, Arakawa T, Shiraki K. The effects of N-acetyltryptophan and caprylic acid on protein aggregation. ACTA ACUST UNITED AC 2016. [DOI: 10.14533/jbm.16.3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Shogo Oki
- Institute of Applied Physics, University of Tsukuba
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Fredrickson J, Krisher R, Morbeck DE. The impact of the protein stabilizer octanoic acid on embryonic development and fetal growth in a murine model. J Assist Reprod Genet 2015; 32:1517-24. [PMID: 26342329 PMCID: PMC4615915 DOI: 10.1007/s10815-015-0560-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 08/20/2015] [Indexed: 11/27/2022] Open
Abstract
PURPOSE The purpose of this study was to determine the effect of the protein stabilizer octanoic acid on blastocyst development, implantation, and fetal growth in a murine model. METHODS One-cell mouse embryos were collected and individually cultured in medium supplemented with recombinant human serum albumin for 96 h at 5 % oxygen in an EmbryoScope. Embryos were randomly allocated to four octanoic acid groups (0, 400, 800, or 1200 μM). Blastocyst development and cell cycle timings were calculated at 96 h of culture, and experiments were repeated in triplicate. Blastocysts were stained and fixed at 96 h for differential cell counts. Following 96 h of culture, blastocysts were transferred to recipients to determine implantation rates and fetal and placental weights. RESULTS Blastocyst development, hatching rates, developmental kinetics, and total number of cells were negatively affected by octanoic acid at concentrations commonly used in human IVF. Implantation was not affected by octanoic acid but fetal and placental weights at 800 μM octanoic acid were increased relative to control. CONCLUSIONS Octanoic acid, a standard additive to human protein supplements used in IVF, can have long-term negative effects on embryonic and fetal development. The use of octanoic acid for human embryo culture should be monitored and reduced.
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Affiliation(s)
| | - Rebecca Krisher
- National Foundation for Fertility Research, Lone Tree, CO, USA
| | - Dean E Morbeck
- Division of Reproductive Endocrinology and Infertility, Mayo Clinic, 200 First St SW, Rochester, MN, 55905, USA.
- Division of Laboratory Genetics, Mayo Clinic, Rochester, MN, USA.
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Feroz SR, Mohamad SB, Lee GS, Malek SNA, Tayyab S. Supramolecular interaction of 6-shogaol, a therapeutic agent of Zingiber officinale with human serum albumin as elucidated by spectroscopic, calorimetric and molecular docking methods. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2015; 22:621-30. [PMID: 26055127 DOI: 10.1016/j.phymed.2015.03.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 03/23/2015] [Accepted: 03/26/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND 6-Shogaol, one of the main bioactive constituents of Zingiber officinale has been shown to possess various therapeutic properties. Interaction of a therapeutic compound with plasma proteins greatly affects its pharmacokinetic and pharmacodynamic properties. PURPOSE The present investigation was undertaken to characterize the interaction between 6-shogaol and the main in vivo transporter, human serum albumin (HSA). METHODS Various binding characteristics of 6-shogaol-HSA interaction were studied using fluorescence spectroscopy. Thermal stability of 6-shogaol-HSA system was determined by circular dichroism (CD) and differential scanning calorimetric (DSC) techniques. Identification of the 6-shogaol binding site on HSA was made by competitive drug displacement and molecular docking experiments. RESULTS Fluorescence quench titration results revealed the association constant, Ka of 6-shogaol-HSA interaction as 6.29 ± 0.33 × 10(4) M(-1) at 25 ºC. Values of the enthalpy change (-11.76 kJ mol(-1)) and the entropy change (52.52 J mol(-1) K(-1)), obtained for the binding reaction suggested involvement of hydrophobic and van der Waals forces along with hydrogen bonds in the complex formation. Higher thermal stability of HSA was noticed in the presence of 6-shogaol, as revealed by DSC and thermal denaturation profiles. Competitive ligand displacement experiments along with molecular docking results suggested the binding preference of 6-shogaol for Sudlow's site I of HSA. CONCLUSION All these results suggest that 6-shogaol binds to Sudlow's site I of HSA through moderate binding affinity and involves hydrophobic and van der Waals forces along with hydrogen bonds.
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Affiliation(s)
- S R Feroz
- Biomolecular Research Group, Biochemistry Programme, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - S B Mohamad
- Bioinformatics Programme, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia; Centre of Research for Computational Sciences and Informatics for Biology, Bioindustry, Environment, Agriculture and Healthcare (CRYSTAL), Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - G S Lee
- Biomolecular Research Group, Biochemistry Programme, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - S N A Malek
- Biomolecular Research Group, Biochemistry Programme, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - S Tayyab
- Biomolecular Research Group, Biochemistry Programme, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia; Centre of Research for Computational Sciences and Informatics for Biology, Bioindustry, Environment, Agriculture and Healthcare (CRYSTAL), Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
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Jarasch A, Koll H, Regula JT, Bader M, Papadimitriou A, Kettenberger H. Developability Assessment During the Selection of Novel Therapeutic Antibodies. J Pharm Sci 2015; 104:1885-1898. [DOI: 10.1002/jps.24430] [Citation(s) in RCA: 149] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2014] [Revised: 02/28/2015] [Accepted: 03/03/2015] [Indexed: 01/02/2023]
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Frahm GE, Smith DGS, Kane A, Lorbetskie B, Cyr TD, Girard M, Johnston MJW. Determination of supplier-to-supplier and lot-to-lot variability in glycation of recombinant human serum albumin expressed in Oryza sativa. PLoS One 2014; 9:e109893. [PMID: 25299339 PMCID: PMC4192584 DOI: 10.1371/journal.pone.0109893] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 09/06/2014] [Indexed: 01/11/2023] Open
Abstract
The use of different expression systems to produce the same recombinant human protein can result in expression-dependent chemical modifications (CMs) leading to variability of structure, stability and immunogenicity. Of particular interest are recombinant human proteins expressed in plant-based systems, which have shown particularly high CM variability. In studies presented here, recombinant human serum albumins (rHSA) produced in Oryza sativa (Asian rice) (OsrHSA) from a number of suppliers have been extensively characterized and compared to plasma-derived HSA (pHSA) and rHSA expressed in yeast (Pichia pastoris and Saccharomyces cerevisiae). The heterogeneity of each sample was evaluated using size exclusion chromatography (SEC), reversed-phase high-performance liquid chromatography (RP-HPLC) and capillary electrophoresis (CE). Modifications of the samples were identified by liquid chromatography-mass spectrometry (LC-MS). The secondary and tertiary structure of the albumin samples were assessed with far U/V circular dichroism spectropolarimetry (far U/V CD) and fluorescence spectroscopy, respectively. Far U/V CD and fluorescence analyses were also used to assess thermal stability and drug binding. High molecular weight aggregates in OsrHSA samples were detected with SEC and supplier-to-supplier variability and, more critically, lot-to-lot variability in one manufactures supplied products were identified. LC-MS analysis identified a greater number of hexose-glycated arginine and lysine residues on OsrHSA compared to pHSA or rHSA expressed in yeast. This analysis also showed supplier-to-supplier and lot-to-lot variability in the degree of glycation at specific lysine and arginine residues for OsrHSA. Both the number of glycated residues and the degree of glycation correlated positively with the quantity of non-monomeric species and the chromatographic profiles of the samples. Tertiary structural changes were observed for most OsrHSA samples which correlated well with the degree of arginine/lysine glycation. The extensive glycation of OsrHSA from multiple suppliers may have further implications for the use of OsrHSA as a therapeutic product.
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Affiliation(s)
- Grant E. Frahm
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Daryl G. S. Smith
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Anita Kane
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Barry Lorbetskie
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Terry D. Cyr
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Michel Girard
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
| | - Michael J. W. Johnston
- Centre for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, Ottawa, Ontario, Canada
- * E-mail:
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Comparative studies on the heterogeneity of plasma-derived and recombinant human albumins in laboratory use. Int J Biol Macromol 2014; 69:79-87. [DOI: 10.1016/j.ijbiomac.2014.05.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 05/01/2014] [Accepted: 05/05/2014] [Indexed: 12/13/2022]
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Kouno Y, Anraku M, Yamasaki K, Okayama Y, Iohara D, Ishima Y, Maruyama T, Kragh-Hansen U, Hirayama F, Otagiri M. N-acetyl-l-methionine is a superior protectant of human serum albumin against photo-oxidation and reactive oxygen species compared to N-acetyl-L-tryptophan. Biochim Biophys Acta Gen Subj 2014; 1840:2806-12. [PMID: 24769178 DOI: 10.1016/j.bbagen.2014.04.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 04/07/2014] [Accepted: 04/16/2014] [Indexed: 11/18/2022]
Abstract
BACKGROUND Sodium octanoate (Oct) and N-acetyl-l-tryptophan (N-AcTrp) are widely used as stabilizers during pasteurization and storage of albumin products. However, exposure to light photo-degrades N-AcTrp with the formation of potentially toxic compounds. Therefore, we have examined the usefulness of N-acetyl-l-methionine (N-AcMet) in comparison with N-AcTrp for long-term stability, including photo stability, of albumin products. METHODS Recombinant human serum albumin (rHSA) with and without additives was photo-irradiated for 4weeks. The capability of the different stabilizers to scavenge reactive oxygen species (ROS) was examined by ESR spectrometry. Carbonyl contents were assessed by a spectrophotometric method using fluoresceinamine and Western blotting, whereas the structure of rHSA was examined by SDS-PAGE, far-UV circular dichroism and differential scanning calorimetry. Binding was determined by ultrafiltration. RESULTS N-AcMet was found to be a superior ROS scavenger both before and after photo-irradiation. The number of carbonyl groups formed was lowest in the presence of N-AcMet. According to SDS-PAGE, N-AcMet stabilizes the monomeric form of rHSA, whereas N-AcTrp induces degradation of rHSA during photo-irradiation. The decrease in α-helical content of rHSA was the smallest in the presence of Oct, without or with N-AcMet. Photo-irradiation did not affect the denaturation temperature or calorimetric enthalpy of rHSA, when N-AcMet was present. CONCLUSION The weakly bound N-AcMet is a superior protectant of albumin, because it is a better ROS-protector and structural stabilizer than N-AcTrp, and it is probable and also useful for other protein preparations. GENERAL SIGNIFICANCE N-AcMet is an effective stabilizer of albumin during photo-irradiation, while N-Ac-Trp promotes photo-oxidative damage to albumin.
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Affiliation(s)
- Yousuke Kouno
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; Pharma Daiwa Yuge Pharmacy, Kumamoto City, Japan
| | - Makoto Anraku
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | | | - Daisuke Iohara
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Yu Ishima
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Toru Maruyama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | | | - Fumitoshi Hirayama
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan.
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Faroongsarng D, Kongprasertkit J. The role of caprylate ligand ion on the stabilization of human serum albumin. AAPS PharmSciTech 2014; 15:465-71. [PMID: 24470225 DOI: 10.1208/s12249-014-0076-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 12/23/2013] [Indexed: 12/12/2022] Open
Abstract
Sodium caprylate was added to a pharmaceutical-grade human serum albumin (HSA) to stabilize the product. In this study we have aimed to establish how caprylate ligand protects HSA from thermal degradation. The fatty acid stabilizer was first removed from commercial HSA by charcoal treatment. Cleaned HSA was made to 10% w/v in pH 7.4 buffered solutions and doped with sodium caprylate in serial concentrations up to 0.16 mmol/g-protein. These solutions as well as a commercial HSA, human serum, and enriched-albumin fraction were subjected to differential scanning calorimetry (DSC) within the temperature range of 37-90°C at a 5.0°C/min scanning rate. The globular size of the cleaned HSA solutions was measured by dynamic light scattering. The denaturing temperatures for albumin with sodium caprylate and a commercial one were significantly higher than for albumin only. It was found that the protein globules of cleaned HSA were not as stable as that of the native one due to aggregation, and the caprylate ion may reduce the aggregation by enlarging the globules' electrical double layer. A rational approximation of the Lumry-Eyring protein denaturation model was used to treat DSC denaturing endotherms. The system turned from irreversible dominant Scheme: N (k3K)→ P to reversible dominant Scheme:N (k1)→ P with the increase in caprylate concentration from null to ~0.08 mmol/g-protein. It was postulated that the caprylate ligand may decrease the rate of reversible unfolding as it binds to the IIIA domain which is prone to reversible unfolding/refolding and causes further difficulty for irreversible denaturation which, in turn, HSA can be stabilized.
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Marie AL, Przybylski C, Gonnet F, Daniel R, Urbain R, Chevreux G, Jorieux S, Taverna M. Capillary zone electrophoresis and capillary electrophoresis-mass spectrometry for analyzing qualitative and quantitative variations in therapeutic albumin. Anal Chim Acta 2013; 800:103-10. [DOI: 10.1016/j.aca.2013.09.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 07/29/2013] [Accepted: 09/11/2013] [Indexed: 01/06/2023]
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Leonard PH, Charlesworth MC, Benson L, Walker DL, Fredrickson JR, Morbeck DE. Variability in protein quality used for embryo culture: embryotoxicity of the stabilizer octanoic acid. Fertil Steril 2013; 100:544-9. [PMID: 23602317 DOI: 10.1016/j.fertnstert.2013.03.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Revised: 03/21/2013] [Accepted: 03/21/2013] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To screen human serum albumin (HSA) preparations for toxicity and investigate causes of variation. DESIGN Experimental laboratory study. SETTING University-based laboratory. ANIMAL(S) FVB and CF1 mice crossed to create embryos used in experiments. INTERVENTION(S) Mouse embryo assay performed with 5% or 15% HSA (100 mg/mL albumin) from three samples from three separate manufacturers (A, B, C). MAIN OUTCOME MEASURE(S) Blastocyst rates calculated at 96 hours of culture (experiments repeated in triplicate). RESULT(S) The HSA preparations were desalted to remove stabilizers added during HSA processing, then mass spectrometry was used to determine the relative variation in stabilizer concentrations; the effect of the stabilizer octanoic acid on embryo development was tested. At 5% HSA, all samples had blastocyst rates ≥ 70%; at 15% HSA, the blastocyst rates for samples B and C were <50%. Desalting did not affect sample B but did improve the blastocyst rates of sample C. Mass spectrometry revealed high levels of octanoic acid in sample C compared with sample A. The addition of octanoic acid to sample A produced toxicity similar to sample C. CONCLUSION(S) The stabilizer octanoic acid varies by lot and inhibits embryo development. Because octanoic acid is known to cause disruptions in mitochondrial bioenergetics, reduce intracellular pH, and induce oxidative damage in peripheral tissues, its use in embryo culture should be monitored and limited.
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Affiliation(s)
- Phoebe H Leonard
- Department of Obstetrics and Gynecology, Division of Reproductive Endocrinology and Infertility, Mayo Clinic, Rochester, Minnesota 55905, USA
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Barnard JG, Babcock K, Carpenter JF. Characterization and Quantitation of Aggregates and Particles in Interferon-β Products: Potential Links Between Product Quality Attributes and Immunogenicity. J Pharm Sci 2013; 102:915-28. [DOI: 10.1002/jps.23415] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 10/26/2012] [Accepted: 11/20/2012] [Indexed: 12/21/2022]
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Cordes AA, Platt CW, Carpenter JF, Randolph TW. Selective Domain Stabilization as a Strategy to Reduce Fusion Protein Aggregation. J Pharm Sci 2012; 101:1400-9. [DOI: 10.1002/jps.23049] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Revised: 11/13/2011] [Accepted: 12/15/2011] [Indexed: 11/07/2022]
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Cordes AA, Carpenter JF, Randolph TW. Selective domain stabilization as a strategy to reduce human serum albumin-human granulocyte colony stimulating factor aggregation rate. J Pharm Sci 2012; 101:2009-16. [PMID: 22422106 DOI: 10.1002/jps.23118] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2011] [Revised: 02/05/2012] [Accepted: 02/14/2012] [Indexed: 02/03/2023]
Abstract
Therapeutic proteins must be generally formulated to reduce unwanted aggregation. Fusion proteins, which comprise domains assembled from separate proteins, may require unique formulation strategies in order to maximize their stability. A fusion protein of human serum albumin (HSA) and human granulocyte colony stimulating factor (GCSF; HSA-GCSF) was used as a model to test the hypothesis that formulations that increase the thermodynamic conformational stability of the least stable domain of a fusion protein will stabilize the entire fusion protein against aggregation. Conformational stability of HSA-GCSF was modulated by addition of octanoic acid, which was previously shown to increase the conformational stability of HSA, the least stable domain. Contrary to our hypothesis, increased conformational stability of the HSA domain did not result in increased resistance to aggregation of HSA-GCSF. These results for HSA-GCSF were also compared with similar studies conducted previously on a therapeutic protein formed by the fusion of HSA and human growth hormone (hGH; HSA-hGH).
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Affiliation(s)
- Amanda A Cordes
- Department of Chemical and Biological Engineering, Center for Pharmaceutical Biotechnology, University of Colorado, Boulder, Colorado 80309, USA
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Fang L, Parti R, Hu P. Characterization of N-acetyltryptophan degradation products in concentrated human serum albumin solutions and development of an automated high performance liquid chromatography–mass spectrometry method for their quantitation. J Chromatogr A 2011; 1218:7316-24. [DOI: 10.1016/j.chroma.2011.08.044] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 08/11/2011] [Accepted: 08/14/2011] [Indexed: 10/17/2022]
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Todinova S, Krumova S, Gartcheva L, Robeerst C, Taneva SG. Microcalorimetry of blood serum proteome: a modified interaction network in the multiple myeloma case. Anal Chem 2011; 83:7992-8. [PMID: 21928840 DOI: 10.1021/ac202055m] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hereby we report on a novel approach in the study of multiple myeloma (MM), namely, differential scanning calorimetry (DSC) combined with serum protein electrophoresis. Distinct thermodynamic signatures describe the DSC thermograms of MM blood sera, in contrast to the unique profile found for healthy individuals. The thermal behavior of MM sera reflects a complex interplay between the serum concentration and isotype of the M protein and of albumin, and modified ligand- and/or protein-protein interactions, resulting in stabilization of globulins and at least a fraction of albumin. In all MM cases the 85 °C, transferrin-assigned transition is missing. A distinct feature of IgG isotype (κ and λ) DSC profiles only is the presence of a transition at 82 °C. A DSC-based classification of MM depicts two sets of melting patterns (MMt2 and MMt3 with two or three successive thermal transitions), and subsets within each set (MMt2(i) or MMt3(i), the subscript i = 1, 2 or 3 denotes the main transition being one of the three transitions). The results demonstrate the potential of DSC to monitor MM-related modifications of the serum proteome, even at low M protein concentrations, Bence Jones and importantly nonsecretory multiple myeloma cases, and prove DSC as a versatile tool for oncohematology.
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Affiliation(s)
- Svetla Todinova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
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Alahmad Y, Tran NT, Le Potier I, Forest E, Jorieux S, Taverna M. A new CZE method for profiling human serum albumin and its related forms to assess the quality of biopharmaceuticals. Electrophoresis 2011; 32:292-9. [PMID: 21254128 DOI: 10.1002/elps.201000399] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We present a new CZE method, which uses a polyethylene oxide-coated capillary to separate native HSA from more than five of its structural variants. These variants include oxidized, truncated, and cysteinylated forms of HSA which can all be found in biopharmaceutical products. Both CE and MS confirmed the high degree of heterogeneity of HSA preparations. Recovery studies demonstrated that adsorption of HSA on the capillary was significantly reduced under the conditions we developed, which led to a satisfactory repeatability (RSD for migration times and relative peak areas were less than 0.2 and 7.0%, respectively). Assignment of the main peaks was attempted using in vitro degraded/stressed HSA. We used our method to test batch-to-batch comparability and detected slight quantitative differences in the proportion of native HSA in batches produced from different fractionation methods.
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Affiliation(s)
- Youssef Alahmad
- Univ Paris-Sud, LPNSS, UMR 8612-CNRS, Faculté de Pharmacie, Châtenay-Malabry, France
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One-step preparation of S-nitrosated human serum albumin with high biological activities. Nitric Oxide 2010; 23:121-7. [DOI: 10.1016/j.niox.2010.05.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2010] [Revised: 04/28/2010] [Accepted: 05/02/2010] [Indexed: 11/24/2022]
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Manning MC, Chou DK, Murphy BM, Payne RW, Katayama DS. Stability of protein pharmaceuticals: an update. Pharm Res 2010; 27:544-75. [PMID: 20143256 DOI: 10.1007/s11095-009-0045-6] [Citation(s) in RCA: 737] [Impact Index Per Article: 52.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2009] [Accepted: 12/27/2009] [Indexed: 12/16/2022]
Abstract
In 1989, Manning, Patel, and Borchardt wrote a review of protein stability (Manning et al., Pharm. Res. 6:903-918, 1989), which has been widely referenced ever since. At the time, recombinant protein therapy was still in its infancy. This review summarizes the advances that have been made since then regarding protein stabilization and formulation. In addition to a discussion of the current understanding of chemical and physical instability, sections are included on stabilization in aqueous solution and the dried state, the use of chemical modification and mutagenesis to improve stability, and the interrelationship between chemical and physical instability.
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Klammt S, Koball S, Hickstein H, Gloger M, Henschel J, Mitzner S, Stange J, Reisinger EC. Increase of octanoate concentrations during extracorporeal albumin dialysis treatments. Ther Apher Dial 2009; 13:437-43. [PMID: 19788462 DOI: 10.1111/j.1744-9987.2009.00763.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Extracorporeal liver support procedures based on albumin dialysis require the use of pharmaceutical-grade human serum albumin (HSA). Those preparations contain octanoate, which is added as stabilizer during the production process. For octanoate, a direct involvement in the pathogenesis of liver failure complications as well as an indirect influence by competitive displacement effects at the albumin molecule have been described. During five Single Pass Albumin Dialysis (SPAD) and three Molecular Adsorbent Recirculating System (MARS) treatments the changes of octanoate concentrations in blood and dialysate were investigated. An octanoate increase in patient blood was observed during passage of the filter for both SPAD (585 micromol/L [338-1022 micromol/L]) (median [range]) and MARS (182 micromol/L [71-437 micromol/L]) during the first three hours of treatment. The molar ratio of octanoate/albumin at the blood outflow was significantly higher during SPAD treatments (1.73 [0.86-2.64] vs. 0.54 [0.31-1.1]; P = 0.001) during MARS. Changes of octanoate blood levels during SPAD were significantly higher than during MARS (P < 0.001). The shift of octanoate from the dialysate to the patient was persistent during SPAD (median 67.6 micromol/min), whereas during MARS a decrease over time was observed (from 25.5 to 7.5 micromol/min). During albumin dialysis procedures a transfer of octanoate into patient blood occurs. The time-course and extent are different between both albumin dialysis procedures. Given the positive clinical effects reported mainly for MARS, the clinical impact of albumin dialysis-associated transfer of octanoate during extracorporeal liver support needs to be evaluated further.
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Affiliation(s)
- Sebastian Klammt
- Divisions of Tropical Medicine and Infectious Diseases, Department of Internal Medicine II, University Rostock, Rostock, Germany.
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48
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Ji JA, Zhang B, Cheng W, Wang YJ. Methionine, tryptophan, and histidine oxidation in a model protein, PTH: Mechanisms and stabilization. J Pharm Sci 2009; 98:4485-500. [DOI: 10.1002/jps.21746] [Citation(s) in RCA: 158] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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49
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Influence of non-enzymatic post-translation modifications on the ability of human serum albumin to bind iron. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2009; 1794:1449-58. [DOI: 10.1016/j.bbapap.2009.06.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2009] [Revised: 06/01/2009] [Accepted: 06/02/2009] [Indexed: 11/24/2022]
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50
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Otagiri M, Chuang VTG. Pharmaceutically important pre- and posttranslational modifications on human serum albumin. Biol Pharm Bull 2009; 32:527-34. [PMID: 19336879 DOI: 10.1248/bpb.32.527] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Recombinant technology allows engineering and production of proteins with desirable properties. Human serum albumin has been developed with recombinant technology, and thus plays an increasing role as a drug carrier in the clinical setting. Genetic variations usually occur on the surface of the protein, and do not impose significant effects on the conformation of albumin. However, binding of fatty acids by genetic variants is affected according to the location of the mutation. Albumin undergoes three major posttranslational modifications, namely, oxidation, glycation, and S-nitrosylation. This review gives an account of the different posttranslational modifications that should be taken into consideration when designing albumin mutant analogues with desirable pharmaceutical properties.
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Affiliation(s)
- Masaki Otagiri
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Japan.
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