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Huang H, Wang X, Gao Z, Bao H, Yuan X, Chen C, Xia D, Wang X. A Platelet-Powered Drug Delivery System for Enhancing Chemotherapy Efficacy for Liver Cancer Using the Trojan Horse Strategy. Pharmaceutics 2024; 16:905. [PMID: 39065602 PMCID: PMC11279470 DOI: 10.3390/pharmaceutics16070905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 06/23/2024] [Accepted: 07/03/2024] [Indexed: 07/28/2024] Open
Abstract
Optimizing the delivery and penetration of nano-sized drugs within liver cancer sites, along with remodeling the tumor microenvironment, is crucial for enhancing the efficacy of chemotherapeutic agents. For this study, a platelet (PLT)-mediated nanodrug delivery system (DASA+ATO@PLT) was developed to improve the effectiveness of chemotherapy. This system delivers nano-sized dasatinib and atovaquone specifically to liver tumor sites and facilitates intra-tumoral permeation upon release. Through JC-1, immunohistochemistry, and DNA damage analyses, the therapeutic effect of DASA+ATO@PLT was assessed. In vitro simulation and intravital imaging were carried out to determine the accumulation of dasatinib and atovaquone in liver tumor sites. The experiment demonstrated the accumulation of dasatinib and atovaquone in tumor sites, followed by deep permeation in the tumor microenvironment with the assistance of PLTs, while simultaneously revealing the ability of DASA+ATO@PLT to remodel the liver cancer microenvironment (overcoming hypoxia) and enhance chemotherapeutic efficacy. This system utilizes the natural tumor recognition ability of PLTs and enhances the chemo-immunotherapeutic effect through targeted delivery of nano-chemotherapeutic drugs to the tumor, resulting in effective accumulation and infiltration. The PLT-mediated nanodrug delivery system serves as a "Trojan horse" to carry therapeutic drugs as cargo and deliver them to target cells, leading to favorable outcomes.
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Affiliation(s)
- Hao Huang
- Nantong Institute of Technology, Affiliated Tumor Hospital of Nantong University, School of Public Health of Nantong University, Nantong 226000, China; (H.H.); (X.W.); (Z.G.); (X.Y.); (C.C.)
| | - Xiaoping Wang
- Nantong Institute of Technology, Affiliated Tumor Hospital of Nantong University, School of Public Health of Nantong University, Nantong 226000, China; (H.H.); (X.W.); (Z.G.); (X.Y.); (C.C.)
| | - Ziqing Gao
- Nantong Institute of Technology, Affiliated Tumor Hospital of Nantong University, School of Public Health of Nantong University, Nantong 226000, China; (H.H.); (X.W.); (Z.G.); (X.Y.); (C.C.)
| | - Hongyi Bao
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong 226001, China;
| | - Xiaopeng Yuan
- Nantong Institute of Technology, Affiliated Tumor Hospital of Nantong University, School of Public Health of Nantong University, Nantong 226000, China; (H.H.); (X.W.); (Z.G.); (X.Y.); (C.C.)
- Radiotherapy Department of Nantong Tumor Hospital, Nantong 226361, China
| | - Chao Chen
- Nantong Institute of Technology, Affiliated Tumor Hospital of Nantong University, School of Public Health of Nantong University, Nantong 226000, China; (H.H.); (X.W.); (Z.G.); (X.Y.); (C.C.)
| | - Donglin Xia
- Nantong Institute of Technology, Affiliated Tumor Hospital of Nantong University, School of Public Health of Nantong University, Nantong 226000, China; (H.H.); (X.W.); (Z.G.); (X.Y.); (C.C.)
| | - Xiangqian Wang
- Nantong Institute of Technology, Affiliated Tumor Hospital of Nantong University, School of Public Health of Nantong University, Nantong 226000, China; (H.H.); (X.W.); (Z.G.); (X.Y.); (C.C.)
- Radiotherapy Department of Nantong Tumor Hospital, Nantong 226361, China
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2
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Xiao M, Tang Q, Zeng S, Yang Q, Yang X, Tong X, Zhu G, Lei L, Li S. Emerging biomaterials for tumor immunotherapy. Biomater Res 2023; 27:47. [PMID: 37194085 DOI: 10.1186/s40824-023-00369-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 03/23/2023] [Indexed: 05/18/2023] Open
Abstract
BACKGROUND The immune system interacts with cancer cells in various intricate ways that can protect the individual from overproliferation of cancer cells; however, these interactions can also lead to malignancy. There has been a dramatic increase in the application of cancer immunotherapy in the last decade. However, low immunogenicity, poor specificity, weak presentation efficiency, and off-target side effects still limit its widespread application. Fortunately, advanced biomaterials effectively contribute immunotherapy and play an important role in cancer treatment, making it a research hotspot in the biomedical field. MAIN BODY This review discusses immunotherapies and the development of related biomaterials for application in the field. The review first summarizes the various types of tumor immunotherapy applicable in clinical practice as well as their underlying mechanisms. Further, it focuses on the types of biomaterials applied in immunotherapy and related research on metal nanomaterials, silicon nanoparticles, carbon nanotubes, polymer nanoparticles, and cell membrane nanocarriers. Moreover, we introduce the preparation and processing technologies of these biomaterials (liposomes, microspheres, microneedles, and hydrogels) and summarize their mechanisms when applied to tumor immunotherapy. Finally, we discuss future advancements and shortcomings related to the application of biomaterials in tumor immunotherapy. CONCLUSION Research on biomaterial-based tumor immunotherapy is booming; however, several challenges remain to be overcome to transition from experimental research to clinical application. Biomaterials have been optimized continuously and nanotechnology has achieved continuous progression, ensuring the development of more efficient biomaterials, thereby providing a platform and opportunity for breakthroughs in tumor immunotherapy.
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Affiliation(s)
- Minna Xiao
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Qinglai Tang
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Shiying Zeng
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Qian Yang
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Xinming Yang
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Xinying Tong
- Department of Hemodialysis, the Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Gangcai Zhu
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China
| | - Lanjie Lei
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, China.
| | - Shisheng Li
- Department of Otorhinolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, China.
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3
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Sun Q, Yang Z, Qi X. Design and Application of Hybrid Polymer-Protein Systems in Cancer Therapy. Polymers (Basel) 2023; 15:polym15092219. [PMID: 37177365 PMCID: PMC10181109 DOI: 10.3390/polym15092219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/29/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
Polymer-protein systems have excellent characteristics, such as non-toxic, non-irritating, good water solubility and biocompatibility, which makes them very appealing as cancer therapeutics agents. Inspiringly, they can achieve sustained release and targeted delivery of drugs, greatly improving the effect of cancer therapy and reducing side effects. However, many challenges, such as reducing the toxicity of materials, protecting the activities of proteins and controlling the release of proteins, still need to be overcome. In this review, the design of hybrid polymer-protein systems, including the selection of polymers and the bonding forms of polymer-protein systems, is presented. Meanwhile, vital considerations, including reaction conditions and the release of proteins in the design process, are addressed. Then, hybrid polymer-protein systems developed in the past decades for cancer therapy, including targeted therapy, gene therapy, phototherapy, immunotherapy and vaccine therapy, are summarized. Furthermore, challenges for the hybrid polymer-protein systems in cancer therapy are exemplified, and the perspectives of the field are covered.
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Affiliation(s)
- Qi Sun
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Beijing 100069, China
- Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing 100069, China
| | - Zhenzhen Yang
- Drug Clinical Trial Center, Peking University Third Hospital, Peking University, Beijing 100191, China
- Institute of Medical Innovation and Research, Peking University Third Hospital, Beijing 100191, China
| | - Xianrong Qi
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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Yang J, Xu L, Di L, Su Y, Zhu X. Journey of Poly(ethylene Glycol) in Living Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:40267-40277. [PMID: 34424662 DOI: 10.1021/acsami.1c09366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As the gold standard for stealth polymer materials, poly(ethylene glycol) (PEG) has been widely used in drug delivery with excellent properties such as low toxicity, reduced immunogenicity, good water solubility, and so forth. However, lack of understanding for the fate of PEG and PEGylated delivery systems at the cellular level has limited the application of PEGylated molecules in diagnosis and therapy. Here, we chose linear PEG 5k as a representative model and focused on the internalization behavior and mechanism, intracellular trafficking, sub-cellular localization, and cellular exocytosis of PEG and PEGylated molecules in living cells. Our investigation showed that PEG could be internalized into cells in 1 h. The internalized PEG was localized to lysosome, cytosol, endoplasmic reticulum (ER) and mitochondria. Importantly, the fate of PEG in cells could be regulated by conjugating different small molecules. PEGylated rhodamine B (PEG-RB) as the positively charged macromolecule was internalized into cells by micropinocytosis and then transported in lysosomes, ER, and mitochondria via vesicles sequentially. In contrast, PEGylated pyropheophorbide-a (PEG-PPa) as the negatively charged macromolecule was internalized into cells and transported to lysosomes ultimately. PEGylation slowed down the exocytosis process of RB and PPa and significantly prolonged their residence time inside the cells. These findings improve the understanding of how PEG and PEGylated molecules interact with the biological system at cellular and sub-cellular levels, which is of significance to rational PEGylation design for drug delivery.
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Affiliation(s)
- Jiapei Yang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Li Xu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Ling Di
- Instrumental Analysis Center, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yue Su
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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Borges GSM, Lima FA, Carneiro G, Goulart GAC, Ferreira LAM. All-trans retinoic acid in anticancer therapy: how nanotechnology can enhance its efficacy and resolve its drawbacks. Expert Opin Drug Deliv 2021; 18:1335-1354. [PMID: 33896323 DOI: 10.1080/17425247.2021.1919619] [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] [Indexed: 02/06/2023]
Abstract
Introduction: All-trans retinoic acid (ATRA, tretinoin) is the main drug used in the treatment of acute promyelocytic leukemia (APL). Despite its impressive activity against APL, the same could not be clinically observed in other types of cancer. Nanotechnology can be a tool to enhance ATRA anticancer efficacy and resolve its drawbacks in APL as well as in other malignancies.Areas covered: This review covers ATRA use in APL and non-APL cancers, the problems that were found in ATRA therapy and how nanoencapsulation can aid to circumvent them. Pre-clinical results obtained with nanoencapsulated ATRA are shown as well as the two ATRA products based on nanotechnology that were clinically tested: ATRA-IV® and Apealea®.Expert opinion: ATRA presents interesting properties to be used in anticancer therapy with a notorious differentiation and antimetastatic activity. Bioavailability and resistance limitations impair the use of ATRA in non-APL cancers. Nanotechnology can circumvent these issues and provide tools to enhance its anticancer activities, such as co-loading of multiple drug and active targeting to tumor site.
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Affiliation(s)
- Gabriel Silva Marques Borges
- Departamento De Produtos Farmacêuticos, Faculdade De Farmácia, Universidade Federal De Minas Gerais, Belo Horizonte, Brazil
| | - Flávia Alves Lima
- Departamento De Produtos Farmacêuticos, Faculdade De Farmácia, Universidade Federal De Minas Gerais, Belo Horizonte, Brazil
| | - Guilherme Carneiro
- Departamento De Farmácia, Faculdade De Ciências Biológicas E Da Saúde, Universidade Federal Dos Vales Do Jequitinhonha E Mucuri, Diamantina, Brazil
| | - Gisele Assis Castro Goulart
- Departamento De Produtos Farmacêuticos, Faculdade De Farmácia, Universidade Federal De Minas Gerais, Belo Horizonte, Brazil
| | - Lucas Antônio Miranda Ferreira
- Departamento De Produtos Farmacêuticos, Faculdade De Farmácia, Universidade Federal De Minas Gerais, Belo Horizonte, Brazil
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AlKharboush H, Alshehri F, Alatwi I, Al Karni K, Alatawi A, Hamdan AM. The Cost-Effectiveness of Using Epoetin-Beta Versus Darbepoetin-Alfa for the Treatment of Anemia Among Chronic Hemodialysis Patients. Cureus 2020; 12:e11895. [PMID: 33415047 PMCID: PMC7781860 DOI: 10.7759/cureus.11895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2020] [Indexed: 11/05/2022] Open
Abstract
Background and objective Anemia is a common prognosis of chronic kidney disease (CKD). It is predominantly managed with synthetic erythropoietin. The principal objective of this study was to compare the cost-effectiveness of the use of short-acting erythropoietin with the long-acting one to maintain serum hemoglobin (Hb) concentration within the range of 10.5-12 g/dL. Method This was a retrospective cohort study involving patients diagnosed with stage 5 CKD according to the Saudi Society of Nephrology and Transplantation conducted at eight tertiary care centers in the Tabuk region, Saudi Arabia. We compared the cost-effectiveness of long-acting erythropoietin with the short-acting one. The decision analysis model and Markov model were established to simulate a cohort of 55-year-old patients to estimate the incremental cost and quality-adjusted life-year (QALY) for chronic hemodialysis patients (CHP) treated with either darbepoetin-alfa or epoetin-beta for at least nine months. The incremental cost per QALY was the main outcome marker for using both medications. Serum HB levels were monitored on a monthly basis and costs were calculated. Results A total of 291 CHP met our inclusion criteria; 194 of them were treated with darbepoetin-alfa while 97 were treated with epoetin-beta. The mean age was 56.3 ± 11.2 years for the darbepoetin-alfa group and 55.2 ± 7.8 years for the epoetin-beta cohort. The baseline serum Hb was 10.68 ± 0.98 g/dL for darbepoetin-alfa patients and 11.63 ± 0.32 g/dL for the epoetin-beta group (p=0.003). We observed a significant difference between the percentage of patients successfully treated with epoetin-beta and those managed with darbepoetin-alfa (80.4% vs. 63.92%, p=0.01) with considerably less cardiovascular side effects. The average annual cost per patient was estimated at $919.47 and $12,319.41 for epoetin-beta and darbepoetin-alfa respectively. Also, the average effectiveness was 0.58 for darbepoetin-alfa vs. 0.61 for epoetin-beta. The average cost-effectiveness ratio was $980.25 and $15,023.66 with an incremental cost difference of -$966 in favor of epoetin-beta compared to darbepoetin-alfa. Conclusion Based on our findings, treating anemia in hemodialysis patients using epoetin-beta is very cost-effective compared to managing them with darbepoetin-alfa.
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Affiliation(s)
- Hanan AlKharboush
- Pharm D Program, Faculty of Pharmacy, University of Tabuk, Tabuk, SAU
| | - Fatimah Alshehri
- Pharm D Program, Faculty of Pharmacy, University of Tabuk, Tabuk, SAU
| | - Ibrahim Alatwi
- Pharmaceutical Care Administration, General Directorate of Health Affairs in Tabuk Region, Ministry of Health, Saudi Arabia, Tabuk, SAU
| | - Khaled Al Karni
- Department of Pharmaceutical Care, King Khaled Civil Hospital, Tabuk, SAU
| | - Abdurahman Alatawi
- Pharmaceutical Care Administration, General Directorate of Health Affairs in Tabuk Region, Ministry of Health, Saudi Arabia, Tabuk, SAU
| | - Ahmed M Hamdan
- Pharmacy Practice, Faculty of Pharmacy, University of Tabuk, Tabuk, SAU
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Guo L, Li Z, Xu B, Yu M, Fu Y, Liu L, Wang J, Luo Y. Pharmacokinetics of PEGylated recombinant human endostatin in rhesus monkeys. Life Sci 2019; 238:116967. [DOI: 10.1016/j.lfs.2019.116967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/05/2019] [Accepted: 10/13/2019] [Indexed: 10/25/2022]
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8
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Löscher M, Hurst J, Strudel L, Spitzer MS, Schnichels S. [Nanoparticles as drug delivery systems in ophthalmology]. Ophthalmologe 2019; 115:184-189. [PMID: 29110121 DOI: 10.1007/s00347-017-0596-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Nanoparticles are perfectly suited as drug delivery systems due to their size and the diversity of materials used. They are able to penetrate biological barriers, can directly deliver drugs to the target site and provide a sustained release profile. Having long been established in oncology, in the last decade research has started to take a closer look at the potential of nanoparticles for ocular drug delivery. Obstacles, such as poor delivery of drugs via eye drops and the side effects of invasive methods, such as placing implants as drug depots could be overcome. Among the most relevant investigated structures are polymeric nanoparticles, micelles, liposomes, solid lipid nanoparticles, dendrimers and cyclodextrins. Besides the composition of the nanoparticle itself, its efficacy and stability can be optimized through coatings; however, long-term stability, standardization of production and toxicity remain the major challenges. The preclinical and partly clinical results obtained so far will hopefully give impulse to the idea of applying nanoparticles for optimized ocular drug delivery in the near future.
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Affiliation(s)
- M Löscher
- Universitäts-Augenklinik Tübingen, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Deutschland
| | - J Hurst
- Universitäts-Augenklinik Tübingen, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Deutschland
| | - L Strudel
- Universitäts-Augenklinik Tübingen, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Deutschland
| | - M S Spitzer
- Universitäts-Augenklinik Tübingen, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Deutschland.,Augenklinik des Universitätsklinikums Hamburg-Eppendorf, Hamburg, Deutschland
| | - S Schnichels
- Universitäts-Augenklinik Tübingen, Elfriede-Aulhorn-Str. 7, 72076, Tübingen, Deutschland.
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9
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Guo L, Xu B, Zhou D, Chang G, Fu Y, Liu L, Luo Y. Biophysical and biological characterization of PEGylated recombinant human endostatin. Clin Exp Pharmacol Physiol 2019; 46:920-927. [PMID: 31278773 DOI: 10.1111/1440-1681.13134] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/24/2019] [Accepted: 07/01/2019] [Indexed: 01/17/2023]
Abstract
Recombinant human endostatin (MES), showing potent inhibition on angiogenesis and tumour growth, has great potential as a therapeutic agent for tumours. The aim of this study was to evaluate the biophysical and biological characterization of PEGylated recombinant human endostatin (M2 ES). Recombinant human endostatin was mono-PEGylated by conjugation with methoxy polyethylene glycol aldehyde (mPEG-ALD), and the modification site was identified by digested peptide mapping and matrix assisted laser desorption/ionization-time of flight-mass spectrometry (MALDI-TOF-MS). The purity was assessed by SDS-PAGE, high-performance liquid chromatography (HPLC), and capillary zone electrophoresis. The physicochemical property was analyzed through fluorescence spectroscopy, and circular dichroism. The bioactivity and anti-tumour efficacy of M2 ES were evaluated using an in vitro endothelial cell migration model and a null-mouse xenograft model of a prostatic cancer, respectively. M2 ES molecules contain a single 20 kDa mPEG-ALD molecule conjugated at the N-terminal portion of MES. The purity of M2 ES was greater than 98%. The physicochemical analysis demonstrated that PEGylation does not change the secondary and tertiary structure of MES. Notably, M2 ES retards endothelial cell migration and tumour growth when compared to control group. These biophysical and biological characterization study data contribute to the initiation of the ongoing clinical study.
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Affiliation(s)
- Lifang Guo
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Benshan Xu
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Daifu Zhou
- National Engineering Laboratory for Anti-tumour Protein Therapeutics, Tsinghua University, Beijing, China
| | - Guodong Chang
- National Engineering Laboratory for Anti-tumour Protein Therapeutics, Tsinghua University, Beijing, China
| | - Yan Fu
- National Engineering Laboratory for Anti-tumour Protein Therapeutics, Tsinghua University, Beijing, China.,Beijing Key Laboratory for Protein Therapeutics, Tsinghua University, Beijing, China.,Cancer Biology Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
| | - Lihong Liu
- Department of Pharmacy, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yongzhang Luo
- National Engineering Laboratory for Anti-tumour Protein Therapeutics, Tsinghua University, Beijing, China.,Beijing Key Laboratory for Protein Therapeutics, Tsinghua University, Beijing, China.,Cancer Biology Laboratory, School of Life Sciences, Tsinghua University, Beijing, China
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Fust K, Parthan A, Maschio M, Gu Q, Li X, Lyman GH, Tzivelekis S, Villa G, Weinstein MC. Granulocyte colony-stimulating factors in the prevention of febrile neutropenia: review of cost-effectiveness models. Expert Rev Pharmacoecon Outcomes Res 2017; 17:39-52. [DOI: 10.1080/14737167.2017.1276829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Kelly Fust
- Health Economics & Outcomes Research, Optum, Boston, MA, USA
| | - Anju Parthan
- Health Economics & Outcomes Research, Optum, Boston, MA, USA
| | - Michael Maschio
- Health Economics & Outcomes Research, Optum, Burlington, ON, Canada
| | - Qing Gu
- Health Economics & Outcomes Research, Optum, Boston, MA, USA
| | - Xiaoyan Li
- Global Health Economics, Amgen Inc., Thousand Oaks, CA, USA
| | - Gary H. Lyman
- Public Health Sciences Division and Clinical Research Divisions, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | | | - Guillermo Villa
- Global Health Economics, Amgen (Europe) GmbH, Zug, Switzerland
| | - Milton C. Weinstein
- Department of Health Policy and Management; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Maoujoud O, Ahid S, Cherrah Y. The cost-utility of treating anemia with continuous erythropoietin receptor activator or Epoetin versus routine blood transfusions among chronic hemodialysis patients. Int J Nephrol Renovasc Dis 2016; 9:35-43. [PMID: 26966386 PMCID: PMC4771395 DOI: 10.2147/ijnrd.s96027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE The purpose of this study was to determine the cost-utility of treating anemic dialysis patients with continuous erythropoietin receptor activator (CERA) once monthly or Epoetin Beta (EpoB) thrice weekly compared with a reference strategy of managing anemia with red blood cell transfusion (RBCT). METHODS Cost-utility analysis study design. Decision analysis model, National health care payer, over 1 year with the publicly funded health care system. Chronic hemodialysis patients with renal anemia were included. The outcome marker of this study was the incremental cost per quality-adjusted life-year (QALY) gained (incremental cost-utility ratio [ICUR]) of CERA or EpoB relative to RBCT. RESULTS The total cost per patient (in US$) was estimated at $2,176.37, $4,107.01, and $4,356.69 for RBCT, CERA, and EpoB, respectively. The cost-utility ratio was calculated at 4,423.52, 6,955.50, and 7,406.38 $/QALY for RBCT, CERA, and EpoB, with an ICUR of CERA and EpoB in relation to RBCT at 19,606.40 and 22,466.09 $/QALY, respectively. In sensitivity analysis, the model was most sensitive to hospitalization costs, hospital stay, and annual number of RBCT units. Also, assuming utility and survival improvement with erythropoiesis stimulating agents use resulted in a decrease in ICUR at 13,429 $/QALY for CERA and 15,331 $/QALY for EpoB. In probabilistic sensitivity analysis, the main results of our model were unchanged; CERA and EpoB were more costly and more effective than RBCT below a threshold of 19,500 $/QALY. CERA was the best option for a willingness to pay over 19,500 $/QALY. LIMITATIONS Some model parameters were obtained from observational data, the comparator RBCT is not the standard of care. CONCLUSION Our study suggests that managing anemia in dialysis patients with CERA or EpoB may result in better outcomes with higher overall costs. Considering different assumptions, we found substantial variability in the estimates of the cost-utility and incremental of using CERA or EpoB.
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Affiliation(s)
- Omar Maoujoud
- Research Team of Pharmacoepidemiology and Pharmacoeconomics, Medical and Pharmacy School, Mohammed V University, Rabat, Morocco
- Department of Nephrology and Dialysis, Military Hospital, Agadir, Morocco
| | - Samir Ahid
- Research Team of Pharmacoepidemiology and Pharmacoeconomics, Medical and Pharmacy School, Mohammed V University, Rabat, Morocco
| | - Yahia Cherrah
- Research Team of Pharmacoepidemiology and Pharmacoeconomics, Medical and Pharmacy School, Mohammed V University, Rabat, Morocco
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Herzberger J, Niederer K, Pohlit H, Seiwert J, Worm M, Wurm FR, Frey H. Polymerization of Ethylene Oxide, Propylene Oxide, and Other Alkylene Oxides: Synthesis, Novel Polymer Architectures, and Bioconjugation. Chem Rev 2015; 116:2170-243. [PMID: 26713458 DOI: 10.1021/acs.chemrev.5b00441] [Citation(s) in RCA: 451] [Impact Index Per Article: 50.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The review summarizes current trends and developments in the polymerization of alkylene oxides in the last two decades since 1995, with a particular focus on the most important epoxide monomers ethylene oxide (EO), propylene oxide (PO), and butylene oxide (BO). Classical synthetic pathways, i.e., anionic polymerization, coordination polymerization, and cationic polymerization of epoxides (oxiranes), are briefly reviewed. The main focus of the review lies on more recent and in some cases metal-free methods for epoxide polymerization, i.e., the activated monomer strategy, the use of organocatalysts, such as N-heterocyclic carbenes (NHCs) and N-heterocyclic olefins (NHOs) as well as phosphazene bases. In addition, the commercially relevant double-metal cyanide (DMC) catalyst systems are discussed. Besides the synthetic progress, new types of multifunctional linear PEG (mf-PEG) and PPO structures accessible by copolymerization of EO or PO with functional epoxide comonomers are presented as well as complex branched, hyperbranched, and dendrimer like polyethers. Amphiphilic block copolymers based on PEO and PPO (Poloxamers and Pluronics) and advances in the area of PEGylation as the most important bioconjugation strategy are also summarized. With the ever growing toolbox for epoxide polymerization, a "polyether universe" may be envisaged that in its structural diversity parallels the immense variety of structural options available for polymers based on vinyl monomers with a purely carbon-based backbone.
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Affiliation(s)
- Jana Herzberger
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Graduate School Materials Science in Mainz , Staudingerweg 9, D-55128 Mainz, Germany
| | - Kerstin Niederer
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Hannah Pohlit
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Graduate School Materials Science in Mainz , Staudingerweg 9, D-55128 Mainz, Germany.,Max Planck Graduate Center , Staudingerweg 6, D-55128 Mainz, Germany.,Department of Dermatology, University Medical Center , Langenbeckstraße 1, D-55131 Mainz, Germany
| | - Jan Seiwert
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Matthias Worm
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Max Planck Graduate Center , Staudingerweg 6, D-55128 Mainz, Germany
| | - Frederik R Wurm
- Max Planck Graduate Center , Staudingerweg 6, D-55128 Mainz, Germany.,Max Planck Institute for Polymer Research , Ackermannweg 10, D-55128 Mainz, Germany
| | - Holger Frey
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz , Duesbergweg 10-14, D-55128 Mainz, Germany.,Graduate School Materials Science in Mainz , Staudingerweg 9, D-55128 Mainz, Germany
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Duncan R. Polymer therapeutics: Top 10 selling pharmaceuticals — What next? J Control Release 2014; 190:371-80. [DOI: 10.1016/j.jconrel.2014.05.001] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 04/27/2014] [Accepted: 05/02/2014] [Indexed: 01/02/2023]
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Schmid H. Cost-effectiveness of continuous erythropoietin receptor activator in anemia. CLINICOECONOMICS AND OUTCOMES RESEARCH 2014; 6:319-30. [PMID: 25050070 PMCID: PMC4090042 DOI: 10.2147/ceor.s46930] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background Erythropoiesis-stimulating agents (ESAs) are the mainstay of anemia therapy. Continuous erythropoietin receptor activator (CERA) is a highly effective, long-acting ESA developed for once-monthly dosing. A multitude of clinical studies has evaluated the safety and efficiency of this treatment option for patients with renal anemia. In times of permanent financial pressure on health care systems, the cost-effectiveness of CERA should be of particular importance for payers and clinicians. Objective To critically analyze, from the nephrologists’ point of view, the published literature focusing on the cost-effectiveness of CERA for anemia treatment. Methods The detailed literature search covered electronic databases including MEDLINE, PubMed, and Embase, as well as international conference abstract databases. Results Peer-reviewed literature analyzing the definite cost-effectiveness of CERA is scarce, and most of the available data originate from conference abstracts. Identified data are restricted to the treatment of anemia due to chronic kidney disease. Although the majority of studies suggest a considerable cost advantage for CERA, the published literature cannot easily be compared. While time and motion studies clearly indicate that a switch to CERA could minimize health care staff time in dialysis units, the results of studies comparing direct costs are more ambivalent, potentially reflecting the differences between health care systems and variability between centers. Conclusion Analyzed data are predominantly insufficient; they miss clear evidence and have to thus be interpreted with great caution. In this day and age of financial restraints, results from well-designed, head-to-head studies with clearly defined endpoints have to prove whether CERA therapy can achieve cost savings without compromising anemia management.
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Affiliation(s)
- Holger Schmid
- Clinic and Policlinic IV, Section of Nephrology, Munich University Hospital, Campus Innenstadt, Munich, Germany ; KfH Nierenzentrum Muenchen Laim, Munich, Germany
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Guo L, Geng X, Chen Y, Qi F, Liu L, Miao Y, Lin Z, Yu M, Li Z, Fu Y, Li B, Luo Y. Pre-clinical toxicokinetics and safety study of M2ES, a PEGylated recombinant human endostatin, in rhesus monkeys. Regul Toxicol Pharmacol 2014; 69:512-23. [PMID: 24878240 DOI: 10.1016/j.yrtph.2014.05.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 05/19/2014] [Accepted: 05/20/2014] [Indexed: 11/16/2022]
Abstract
PEGylated recombinant human endostatin (M2ES) exhibited prolonged serum half-life and enhanced antitumor activity when compared with endostatin. A non-clinical study was performed to evaluate the toxicokinetics and safety of M2ES in rhesus monkeys. After intravenous (IV) infusions of M2ES at a dose level of 3, 10, and 30mg/kg in rhesus monkeys, the concentration-time curves of M2ES were best fitted to a non-compartment model, and area under the curve (AUC) was positively correlated with the dosage. M2ES had a tendency to accumulate in vivo following successive IV infusions. Serum anti-M2ES IgG antibodies were generated quickly during IV administration, and the antibody level in serum did not significantly decrease after four-week recovery period. Animals administered IV infusions twice weekly (M2ES at 10 or 30mg/kg body weight per day) for 3months developed mild or moderate vacuolation of proximal tubule epithelial cell in proximal convoluted tubule of kidney, but this adverse-effect was reversible. In summary, M2ES was well tolerated and did not cause any serious toxicity. These pre-clinical safety data contribute to the initiation of the ongoing clinical study.
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Affiliation(s)
- Lifang Guo
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China; National Engineering Laboratory for Anti-tumor Protein Therapeutics, School of Life Sciences, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory for Protein Therapeutics, School of Life Sciences, Tsinghua University, Beijing 100084, China; Cancer Biology Laboratory, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Xingchao Geng
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Beijing 100176, China
| | - Yang Chen
- National Engineering Laboratory for Anti-tumor Protein Therapeutics, School of Life Sciences, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory for Protein Therapeutics, School of Life Sciences, Tsinghua University, Beijing 100084, China; Cancer Biology Laboratory, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Feifei Qi
- National Engineering Laboratory for Anti-tumor Protein Therapeutics, School of Life Sciences, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory for Protein Therapeutics, School of Life Sciences, Tsinghua University, Beijing 100084, China; Cancer Biology Laboratory, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Li Liu
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Beijing 100176, China
| | - Yufa Miao
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Beijing 100176, China
| | - Zhi Lin
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Beijing 100176, China
| | - Min Yu
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Beijing 100176, China
| | - Zuogang Li
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Beijing 100176, China
| | - Yan Fu
- National Engineering Laboratory for Anti-tumor Protein Therapeutics, School of Life Sciences, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory for Protein Therapeutics, School of Life Sciences, Tsinghua University, Beijing 100084, China; Cancer Biology Laboratory, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Bo Li
- National Center for Safety Evaluation of Drugs, National Institute for Food and Drug Control, Beijing 100176, China.
| | - Yongzhang Luo
- National Engineering Laboratory for Anti-tumor Protein Therapeutics, School of Life Sciences, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory for Protein Therapeutics, School of Life Sciences, Tsinghua University, Beijing 100084, China; Cancer Biology Laboratory, School of Life Sciences, Tsinghua University, Beijing 100084, China.
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Jin SE, Jin HE, Hong SS. Targeted delivery system of nanobiomaterials in anticancer therapy: from cells to clinics. BIOMED RESEARCH INTERNATIONAL 2014; 2014:814208. [PMID: 24672796 PMCID: PMC3950423 DOI: 10.1155/2014/814208] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 12/25/2013] [Indexed: 12/14/2022]
Abstract
Targeted delivery systems of nanobiomaterials are necessary to be developed for the diagnosis and treatment of cancer. Nanobiomaterials can be engineered to recognize cancer-specific receptors at the cellular levels and to deliver anticancer drugs into the diseased sites. In particular, nanobiomaterial-based nanocarriers, so-called nanoplatforms, are the design of the targeted delivery systems such as liposomes, polymeric nanoparticles/micelles, nanoconjugates, norganic materials, carbon-based nanobiomaterials, and bioinspired phage system, which are based on the nanosize of 1-100 nm in diameter. In this review, the design and the application of these nanoplatforms are discussed at the cellular levels as well as in the clinics. We believe that this review can offer recent advances in the targeted delivery systems of nanobiomaterials regarding in vitro and in vivo applications and the translation of nanobiomaterials to nanomedicine in anticancer therapy.
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Affiliation(s)
- Su-Eon Jin
- Department of Drug Development, College of Medicine, Inha University, 3-ga, Sinheung dong, Jung-gu, Incheon 400-712, Republic of Korea
| | - Hyo-Eon Jin
- Department of Bioengineering, University of California, Berkeley and Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Soon-Sun Hong
- Department of Drug Development, College of Medicine, Inha University, 3-ga, Sinheung dong, Jung-gu, Incheon 400-712, Republic of Korea
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Peptide inhibitors of C3 activation as a novel strategy of complement inhibition for the treatment of paroxysmal nocturnal hemoglobinuria. Blood 2014; 123:2094-101. [PMID: 24497537 DOI: 10.1182/blood-2013-11-536573] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Paroxysmal nocturnal hemoglobinuria (PNH) is characterized by complement-mediated intravascular hemolysis due to the lack of CD55 and CD59 on affected erythrocytes. The anti-C5 antibody eculizumab has proven clinically effective, but uncontrolled C3 activation due to CD55 absence may result in opsonization of erythrocytes, possibly leading to clinically meaningful extravascular hemolysis. We investigated the effect of the peptidic C3 inhibitor, compstatin Cp40, and its long-acting form (polyethylene glycol [PEG]-Cp40) on hemolysis and opsonization of PNH erythrocytes in an established in vitro system. Both compounds demonstrated dose-dependent inhibition of hemolysis with IC50 ∼4 µM and full inhibition at 6 µM. Protective levels of either Cp40 or PEG-Cp40 also efficiently prevented deposition of C3 fragments on PNH erythrocytes. We further explored the potential of both inhibitors for systemic administration and performed pharmacokinetic evaluation in nonhuman primates. A single intravenous injection of PEG-Cp40 resulted in a prolonged elimination half-life of >5 days but may potentially affect the plasma levels of C3. Despite faster elimination kinetics, saturating inhibitor concentration could be reached with unmodified Cp40 through repetitive subcutaneous administration. In conclusion, peptide inhibitors of C3 activation effectively prevent hemolysis and C3 opsonization of PNH erythrocytes, and are excellent, and potentially cost-effective, candidates for further clinical investigation.
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Synthesis and activity of a folate targeted monodisperse PEG camptothecin conjugate. Bioorg Med Chem Lett 2013; 23:5810-3. [DOI: 10.1016/j.bmcl.2013.08.113] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 08/26/2013] [Accepted: 08/29/2013] [Indexed: 01/28/2023]
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