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Makkapati BS, Challapalli S, MariappanSenthiappan A, Kilikunnel JS, Krishna A, Lobo D, Jawahar V, Banerjee S. Clinical and dosimetric correlation in terms of treatment response, bladder and rectal toxicities in cervical cancer patients treated with cobalt 60 high dose rate brachytherapy. PeerJ 2024; 12:e17759. [PMID: 39184391 PMCID: PMC11345003 DOI: 10.7717/peerj.17759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 06/25/2024] [Indexed: 08/27/2024] Open
Abstract
Background High dose rate (HDR) image-guided brachytherapy with Cobalt-60 isotope is a relatively recent approach. The aim of the study is to evaluate the clinical and dosimetric parameters in terms of tumour response, bladder, and rectal toxicity in patients undergoing Co-60 HDR brachytherapy. Materials and Method All patients were initially treated with chemoradiation (CT-RT) at our center or other referral centers with external beam radiation therapy (EBRT) for a dose of 45 Gy-60 Gy at 1.8-2Gy/fraction (including nodal boost) with concomitant chemotherapy with either cisplatin or carboplatin. Patients were then scheduled for brachytherapy within 1 week after completion of CT-RT and are assessed by local examination. Depending on local examination parameters at the time of brachytherapy they were eligible either for intracavitary brachytherapy (ICBT) or interstitial brachytherapy (ISBT). Results The complete response (CR) observed in stage I, II, III, IVA were 60%, 79.4%, 86% and 76.2% respectively. Complete response was seen in patients with mean EQD2 of 78.67 Gy10, 83.33 Gy10, 84.23 Gy10, 85.63 Gy10 in stages I, II, III, IVA respectively. 79.2% of cisplatin-treated patients and 87.5% of carboplatin-treated patients had a complete response indicating that patients treated with either chemotherapy had similar response rates. Conclusions According to results obtained from the study we conclude by saying that higher rates of complete response to treatment in cervical cancer is seen in patients with shorter overall treatment time (OTT), shorter interval between end of definitive CT-RT and beginning of brachytherapy and squamous cell histology. The study also noted the trend of increasing mean EQD2 to tumor with increasing stage for achieving complete response. Higher acute bladder and rectal toxicity is seen in patients who received EQD2 of ¿70-90Gy3 and ¿70Gy3 respectively. The study findings suggest that the clinical outcomes and the toxicities are clinically comparable with other radioisotope based HDR brachytherapy treatment.
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Affiliation(s)
- Bharat Sai Makkapati
- Department of Radiation Oncology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Srinivas Challapalli
- Department of Radiation Oncology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | | | - Johan Sunny Kilikunnel
- Department of Radiation Oncology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Abhishek Krishna
- Department of Radiation Oncology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Dilson Lobo
- Department of Radiation Oncology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Vaishak Jawahar
- Department of Radiation Oncology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Sourjya Banerjee
- Department of Radiation Oncology, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
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2
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Agha A, Abu-Nada E, Alazzam A. Integration of acoustic micromixing with cyclic olefin copolymer microfluidics for enhanced lab-on-a-chip applications in nanoscale liposome synthesis. Biofabrication 2024; 16:045004. [PMID: 38942007 DOI: 10.1088/1758-5090/ad5d19] [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: 01/24/2024] [Accepted: 06/28/2024] [Indexed: 06/30/2024]
Abstract
The integration of acoustic wave micromixing with microfluidic systems holds great potential for applications in biomedicine and lab-on-a-chip technologies. Polymers such as cyclic olefin copolymer (COC) are increasingly utilized in microfluidic applications due to its unique properties, low cost, and versatile fabrication methods, and incorporating them into acoustofluidics significantly expands their potential applications. In this work, for the first time, we demonstrated the integration of polymer microfluidics with acoustic micromixing utilizing oscillating sharp edge structures to homogenize flowing fluids. The sharp edge mixing platform was entirely composed of COC fabricated in a COC-hydrocarbon solvent swelling based microfabrication process. As an electrical signal is applied to a piezoelectric transducer bonded to the micromixer, the sharp edges start to oscillate generating vortices at its tip, mixing the fluids. A 2D numerical model was implemented to determine the optimum microchannel dimensions for experimental mixing assessment. The system was shown to successfully mix fluids at flow rates up to 150µl h-1and has a modest effect even at the highest tested flow rate of 600µl h-1. The utility of the fabricated sharp edge micromixer was demonstrated by the synthesis of nanoscale liposomes.
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Affiliation(s)
- Abdulrahman Agha
- Department of Mechanical and Nuclear Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Eiyad Abu-Nada
- Department of Mechanical and Nuclear Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Anas Alazzam
- Department of Mechanical and Nuclear Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
- System on Chip Lab, Khalifa University, Abu Dhabi 127788, United Arab Emirates
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3
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Almeida DRS, Gil JF, Guillot AJ, Li J, Pinto RJB, Santos HA, Gonçalves G. Advances in Microfluidic-Based Core@Shell Nanoparticles Fabrication for Cancer Applications. Adv Healthc Mater 2024:e2400946. [PMID: 38736024 DOI: 10.1002/adhm.202400946] [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: 03/13/2024] [Revised: 05/09/2024] [Indexed: 05/14/2024]
Abstract
Current research in cancer therapy focuses on personalized therapies, through nanotechnology-based targeted drug delivery systems. Particularly, controlled drug release with nanoparticles (NPs) can be designed to safely transport various active agents, optimizing delivery to specific organs and tumors, minimizing side effects. The use of microfluidics (MFs) in this field has stood out against conventional methods by allowing precise control over parameters like size, structure, composition, and mechanical/biological properties of nanoscale carriers. This review compiles applications of microfluidics in the production of core-shell NPs (CSNPs) for cancer therapy, discussing the versatility inherent in various microchannel and/or micromixer setups and showcasing how these setups can be utilized individually or in combination, as well as how this technology allows the development of new advances in more efficient and controlled fabrication of core-shell nanoformulations. Recent biological studies have achieved an effective, safe, and controlled delivery of otherwise unreliable encapsulants such as small interfering RNA (siRNA), plasmid DNA (pDNA), and cisplatin as a result of precisely tuned fabrication of nanocarriers, showing that this technology is paving the way for innovative strategies in cancer therapy nanofabrication, characterized by continuous production and high reproducibility. Finally, this review analyzes the technical, biological, and technological limitations that currently prevent this technology from becoming the standard.
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Affiliation(s)
- Duarte R S Almeida
- Centre for Mechanical Technology and Automation (TEMA), Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Guimarães, 4800-058, Portugal
| | - João Ferreira Gil
- Centre for Mechanical Technology and Automation (TEMA), Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Guimarães, 4800-058, Portugal
| | - Antonio José Guillot
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Ave. Vicent Andrés Estellés s/n, Burjassot, Valencia, 46100, Spain
- Department of Biomaterials and Biomedical Technology, University Medical Center Groningen (UMCG), University of Groningen, Groningen, 9713 AV, The Netherlands
| | - Jiachen Li
- Department of Biomaterials and Biomedical Technology, University Medical Center Groningen (UMCG), University of Groningen, Groningen, 9713 AV, The Netherlands
| | - Ricardo J B Pinto
- CICECO-Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Hélder A Santos
- Department of Biomaterials and Biomedical Technology, University Medical Center Groningen (UMCG), University of Groningen, Groningen, 9713 AV, The Netherlands
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, 00014, Finland
| | - Gil Gonçalves
- Centre for Mechanical Technology and Automation (TEMA), Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Guimarães, 4800-058, Portugal
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4
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Cho O, Chun M, Chang SJ. Average log change rate of pretreatment squamous cell carcinoma antigen after concurrent chemoradiotherapy in stage IIIC1 cervical squamous cell carcinoma. Sci Rep 2024; 14:8710. [PMID: 38622276 PMCID: PMC11018847 DOI: 10.1038/s41598-024-59412-w] [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: 10/20/2023] [Accepted: 04/10/2024] [Indexed: 04/17/2024] Open
Abstract
We aimed to determine whether pretreatment squamous cell carcinoma antigen (SCC-Ag) levels and the average logarithmic change in SCC-Ag levels (Δ log SCC-Ag Δ time ) after concurrent chemoradiotherapy (CCRT) could predict treatment outcomes in patients with stage IIIC1 cervical squamous cell carcinoma (SCC). We analyzed 168 patients with stage IIIC1 cervical SCC who underwent primary CCRT and collected data on age, local extension, treatment details, hematological parameters, and tumor markers such as SCC-Ag and carcinoembryonic antigen 21-1 (Cyfra). Predictive performances of pretreatment SCC-Ag levels andΔ log SCC-Ag Δ time were assessed using receiver operating characteristic curves. Survival analysis was performed using the Cox regression model and Kaplan-Meier plots. The combination of pretreatment SCC-Ag levels andΔ log SCC-Ag Δ time showed higher area under the curve values than pretreatment SCC-Ag levels alone (area under the curve; 95% confidence interval [CI] 0.708 [0.581-0.836] vs. 0.666 [0.528-0.804], respectively). Pretreatment SCC-Ag (≥ 5 ng/ml and Cyfra levels (≥ 3.15 ng/ml) andΔ log SCC-Ag Δ time (≥ - 1.575) were significant predictors of disease-specific survival. The 5-year disease-specific survival rates significantly differed among the low-, intermediate-, and high-risk groups. Risk stratification using both pretreatment SCC-Ag levels andΔ log SCC-Ag Δ time may predict treatment outcomes of patients with stage IIIC1 SCC.
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Affiliation(s)
- Oyeon Cho
- Gynecologic Cancer Center, Department of Radiation Oncology, Ajou University of School of Medicine, 164, World cup-ro, Yeongtong-gu, Suwon, 16499, Korea.
| | - Mison Chun
- Gynecologic Cancer Center, Department of Radiation Oncology, Ajou University of School of Medicine, 164, World cup-ro, Yeongtong-gu, Suwon, 16499, Korea
| | - Suk-Joon Chang
- Gynecologic Cancer Center, Department of Obstetrics and Gynecology, Ajou University of School of Medicine, Suwon, 16499, Korea
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5
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Jasim A, Albukhaty S, Sulaiman GM, Al-Karagoly H, Jabir MS, Abomughayedh AM, Mohammed HA, Abomughaid MM. Liposome Nanocarriers Based on γ Oryzanol: Preparation, Characterization, and In Vivo Assessment of Toxicity and Antioxidant Activity. ACS OMEGA 2024; 9:3554-3564. [PMID: 38284009 PMCID: PMC10809378 DOI: 10.1021/acsomega.3c07339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 12/09/2023] [Accepted: 12/25/2023] [Indexed: 01/30/2024]
Abstract
The present study aimed to develop and characterize liposome nanocarriers based on γ oryzanol and evaluate their potential in vitro and in vivo toxicity and antioxidant effects. The liposomes were physicochemically characterized using various techniques, including dynamic light scattering (DLS) for size and polydispersity index (PDI) measurements and ζ-potential analysis. The in vitro toxicity assessments were performed using hemolysis and MTT assays on the HS5 cell line. In vivo, acute oral toxicity was evaluated by using LD50 assays in mice. Additionally, antioxidant activity was assessed through biochemical analysis of serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels and liver tissue catalase, malondialdehyde (MDA), and glutathione (GSH) levels. The results revealed that the liposomes exhibited a uniform and spherical morphology with suitable physicochemical properties for drug delivery applications. The in vitro cytotoxicity and hemolysis assays and the in vivo LD50 experiment indicated the potential safety of γ oryzanol liposomes, especially at lower concentrations. In addition, the assessment of liver enzymes, i.e., ALT and AST, and the antioxidant markers further revealed the safety of the formulation, particularly for the liver as a highly sensitive soft organ. Overall, the liposome nanocarriers based on γ oryzanol were successfully formulated and expressed potential safety, supporting their application for the purposes of drug delivery and therapeutic interventions, particularly for hepatocellular and antioxidant therapies; however, further investigations for preclinical and clinical studies could be the future prospects for liposome nanocarriers based on γ oryzanol to explore the safety and efficacy of these nanocarriers in various disease models and clinical settings.
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Affiliation(s)
- Ahmed
J. Jasim
- Department
of Biomedical Engineering, University of
Technology, Baghdad 10066, Iraq
| | - Salim Albukhaty
- Department
of Chemistry, College of Science, University
of Misan, Maysan 62001, Iraq
- College
of Medicine, University of Warith Al-Anbiyaa, Karbala 56001, Iraq
| | - Ghassan M. Sulaiman
- Division
of Biotechnology, Department of Applied Sciences, University of Technology, Baghdad 10066, Iraq
| | - Hassan Al-Karagoly
- Department
of Internal and Preventive Medicine, College of Veterinary Medicine, University of Al-Qadisiyah, Al-Diwaniyah 58001, Iraq
| | - Majid S. Jabir
- Division
of Biotechnology, Department of Applied Sciences, University of Technology, Baghdad 10066, Iraq
| | - Ali M. Abomughayedh
- Pharmacy
Department, Aseer Central Hospital, Ministry
of Health, Asir 62523, Saudi Arabia
| | - Hamdoon A. Mohammed
- Department
of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Qassim 51452, Saudi Arabia
- Department
of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Al-Azhar University, Cairo 11371, Egypt
| | - Mosleh M. Abomughaid
- Department
of Medical Laboratory Sciences, College of Applied Medical Sciences, University of Bisha, 255, Al Nakhil, Bisha 67714, Saudi Arabia
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6
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Loza-Rodríguez N, Millán-Sánchez A, López O. A biocompatible lipid-based bigel for topical applications. Eur J Pharm Biopharm 2023; 190:24-34. [PMID: 37433416 DOI: 10.1016/j.ejpb.2023.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 07/04/2023] [Accepted: 07/08/2023] [Indexed: 07/13/2023]
Abstract
The development of biocompatible delivery systems is a necessity for medical and topical applications. Herein, the development of a new bigel for topical application is described. It is composed of 40% colloidal lipid hydrogel and 60% olive oil and beeswax oleogel. Its characterization and the potential of the bigel as a drug carrier through the skin was evaluated in vitro using fluorescence microscopy and two phases of the bigel were labeled with two fluorescent probes: sodium fluorescein (hydrophilic phase) and Nile red (lipophilic phase). The structure of the bigel showed two phases with fluorescence microscopy in which the hydrogel phase was incorporated into a continuous oleogel matrix. Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR) presented a combination of vibrations characteristic of the different molecules forming the bigel, and Differential Scanning Calorimetry (DSC) showed different transitions attributed to beeswax lipids. Small-angle and wide-angle X-ray scattering (SAXS and WAXS) indicated a predominant lamellar structure with orthorhombic lateral packing that could be related to the arrangement of beeswax crystals. Bigel enables deeper penetration of hydrophilic and lipophilic probes into deeper layers, making it a promising candidate for effective topical carriers in medical and dermatological applications.
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Affiliation(s)
- Noèlia Loza-Rodríguez
- Department of Chemical and Surfactant Technology, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain; Bicosome S.L. C/Jordi Girona 18-26, 08034 Barcelona, Spain.
| | - Aina Millán-Sánchez
- Department of Chemical and Surfactant Technology, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain.
| | - Olga López
- Department of Chemical and Surfactant Technology, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain.
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7
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Gao Y, Shelling AN, Porter D, Leung E, Wu Z. Stability of trastuzumab during nanomedicine formulation using SEC-HPLC coupled with polyacrylamide gel electrophoresis. Pharm Dev Technol 2023; 28:288-298. [PMID: 36912800 DOI: 10.1080/10837450.2023.2191277] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
The anti-HER2 antibody trastuzumab has been proven to be an effective targeting ligand for drug delivery. This study investigates the structural integrity of trastuzumab under different stress factors in formulation development and its long-term stability. A validated size exclusion high performance liquid chromatographic (SEC-HPLC) method was first developed. The stability of trastuzumab (0.21-21 mg/ml) under stress conditions (mechanical, freeze-and-thaw, pH and temperature) and long-term storage in the presence of formulation excipients were monitored for up to 12 months, using both the SEC-HPLC method and sodium-dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). The anti-proliferation activity of the reconstituted antibody stored at 4 °C against HER2+ BT-474 breast cells was also monitored over 12 months. The developed SEC-HPLC method was sensitive and accurate. Solutions of trastuzumab were resistant to mechanical stress and repeated freeze-and-thaw; but were unstable under acidic (pH 2.0 and 4.0) and alkaline (pH 10.0 and 12.0) environments. The samples degraded over 5 days at 60 °C, and within 24 h at 75 °C. Low temperature (-80 °C or 4 °C) and low concentration (0.21 mg/ml) favoured the long-term stability. The anti-proliferation activity was conserved at 4 °C for at least 12 months. This study provided valuable stability information in developing trastuzumab involved nano-formulation as well as in clinical settings.
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Affiliation(s)
- Yu Gao
- School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Andrew N Shelling
- Department of Obstetrics and Gynaecology, School of Medicine, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - David Porter
- Auckland Regional Cancer and Blood Service, Auckland City Hospital, Auckland, New Zealand
| | - Euphemia Leung
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Zimei Wu
- School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
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8
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Agha A, Waheed W, Stiharu I, Nerguizian V, Destgeer G, Abu-Nada E, Alazzam A. A review on microfluidic-assisted nanoparticle synthesis, and their applications using multiscale simulation methods. NANOSCALE RESEARCH LETTERS 2023; 18:18. [PMID: 36800044 PMCID: PMC9936499 DOI: 10.1186/s11671-023-03792-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 02/07/2023] [Indexed: 05/24/2023]
Abstract
Recent years have witnessed an increased interest in the development of nanoparticles (NPs) owing to their potential use in a wide variety of biomedical applications, including drug delivery, imaging agents, gene therapy, and vaccines, where recently, lipid nanoparticle mRNA-based vaccines were developed to prevent SARS-CoV-2 causing COVID-19. NPs typically fall into two broad categories: organic and inorganic. Organic NPs mainly include lipid-based and polymer-based nanoparticles, such as liposomes, solid lipid nanoparticles, polymersomes, dendrimers, and polymer micelles. Gold and silver NPs, iron oxide NPs, quantum dots, and carbon and silica-based nanomaterials make up the bulk of the inorganic NPs. These NPs are prepared using a variety of top-down and bottom-up approaches. Microfluidics provide an attractive synthesis alternative and is advantageous compared to the conventional bulk methods. The microfluidic mixing-based production methods offer better control in achieving the desired size, morphology, shape, size distribution, and surface properties of the synthesized NPs. The technology also exhibits excellent process repeatability, fast handling, less sample usage, and yields greater encapsulation efficiencies. In this article, we provide a comprehensive review of the microfluidic-based passive and active mixing techniques for NP synthesis, and their latest developments. Additionally, a summary of microfluidic devices used for NP production is presented. Nonetheless, despite significant advancements in the experimental procedures, complete details of a nanoparticle-based system cannot be deduced from the experiments alone, and thus, multiscale computer simulations are utilized to perform systematic investigations. The work also details the most common multiscale simulation methods and their advancements in unveiling critical mechanisms involved in nanoparticle synthesis and the interaction of nanoparticles with other entities, especially in biomedical and therapeutic systems. Finally, an analysis is provided on the challenges in microfluidics related to nanoparticle synthesis and applications, and the future perspectives, such as large-scale NP synthesis, and hybrid formulations and devices.
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Affiliation(s)
- Abdulrahman Agha
- Department of Mechanical Engineering, Khalifa University, Abu Dhabi, UAE
| | - Waqas Waheed
- Department of Mechanical Engineering, Khalifa University, Abu Dhabi, UAE
- System on Chip Center, Khalifa University, Abu Dhabi, UAE
| | | | | | - Ghulam Destgeer
- Department of Electrical Engineering, School of Computation, Information and Technology, Technical University of Munich, Munich, Germany
| | - Eiyad Abu-Nada
- Department of Mechanical Engineering, Khalifa University, Abu Dhabi, UAE
| | - Anas Alazzam
- Department of Mechanical Engineering, Khalifa University, Abu Dhabi, UAE.
- System on Chip Center, Khalifa University, Abu Dhabi, UAE.
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Gao Q, Ren Z, Jiao S, Guo J, Miao X, Wang J, Liu J. HIF-3 α-Induced miR-630 Expression Promotes Cancer Hallmarks in Cervical Cancer Cells by Forming a Positive Feedback Loop. J Immunol Res 2022; 2022:5262963. [PMID: 36277475 PMCID: PMC9584697 DOI: 10.1155/2022/5262963] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/13/2022] [Accepted: 07/16/2022] [Indexed: 11/18/2022] Open
Abstract
Purpose Hypoxia has crucial functions in the development and metastasis of cervical cancer by inducing the expression of numerous genes, including microRNA genes. But we know little about how the hypoxia factors and microRNAs orchestrate to regulate hallmarks of cervical cancer cells. Methods We conducted RNA sequencing (RNA-seq) and chromatin immunoprecipitation sequencing (ChIP-seq) experiments to investigate the targets of HIF-3α or miR-630. ChIP-qPCR and RT-qPCR were carried out to validate the results of ChIP-seq and RNA-seq. Cellular, molecular, and radiation experiments were conducted to explore the functions of miR-630. Results In this study, we showed that hypoxia-induced overexpression of HIF-3α increased the expression of dozens of miRNAs, including miR-630. Hypoxia could also directly induce miR-630 expression. ChIP-seq data showed that HIF-3α activates miR-630 expression by directly binding to the promoter of its host gene. Meanwhile, stable overexpression of miR-630 increased the expression of HIF-3α, but repressed the expression of HIF-1α, indicating a positive feedback loop between HIF-3α and miR-630. Consequently, stable overexpression of miR-630 in HeLa cells promotes cancer hallmarks, including radioresistance, inhibition of apoptosis, increased migration and invasion, and EMT-mediated metastasis. Meanwhile, inhibition of miR-630 showed opposite features. Conclusion Taken together, our findings indicate a novel hypoxia-induced HIF-3α and miR-630 regulatory feedback loop contributing to metastasis and progression of cervical cancer cells and suggest that HIF-3α and miR-630 might act as potential biomarkers and therapeutic targets for cervical cancer in the future.
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Affiliation(s)
- Qiaohui Gao
- Department of Radiation Medical Protection, School of Military Preventive Medicine, Air Force Medical University, Xi'an, China
| | - Zhenghua Ren
- Department of Radiation Medical Protection, School of Military Preventive Medicine, Air Force Medical University, Xi'an, China
| | - Shengyuan Jiao
- Department of Radiation Medical Protection, School of Military Preventive Medicine, Air Force Medical University, Xi'an, China
| | - Juan Guo
- Department of Radiation Medical Protection, School of Military Preventive Medicine, Air Force Medical University, Xi'an, China
| | - Xia Miao
- Department of Radiation Medical Protection, School of Military Preventive Medicine, Air Force Medical University, Xi'an, China
| | - Jin Wang
- Department of Radiation Medical Protection, School of Military Preventive Medicine, Air Force Medical University, Xi'an, China
| | - Junye Liu
- Department of Radiation Medical Protection, School of Military Preventive Medicine, Air Force Medical University, Xi'an, China
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10
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DoE-derived continuous and robust process for manufacturing of pharmaceutical-grade wide-range LNPs for RNA-vaccine/drug delivery. Sci Rep 2022; 12:9394. [PMID: 35672337 PMCID: PMC9172984 DOI: 10.1038/s41598-022-12100-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 04/28/2022] [Indexed: 12/05/2022] Open
Abstract
Lipid nanoparticle (LNP) technology has become extremely demanding for delivering RNA-products and other drugs. However, there is no platform to manufacture pharmaceutical-grade LNPs with desired particle size from a wide range in continuous mode. We have developed a unique platform to obtain any specific size-range of LNPs from 60 to 180 nm satisfying pharmaceutical regulatory requirements for polydispersity index, sterility, dose uniformity and bio-functionality. We applied design of experiment (DoE) methodology and identified the critical process parameters to establish the process for global application. Cross-point validation within the response map of DoE confirmed that the platform is robust to produce specific size (± 10 nm) of LNPs within the design-range. The technology is successfully transformed to production scale and validated. Products from R&D, pilot and production batches for a candidate SARS-CoV-2 mRNA-vaccine generated equivalent biological responses. The data collectively established the robustness and bio-uniformity of doses for global RNA-vaccine/drug formulation.
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11
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Zhang H, Fang C, Feng Z, Xia T, Lu L, Luo M, Chen Y, Liu Y, Li Y. The Role of LncRNAs in the Regulation of Radiotherapy Sensitivity in Cervical Cancer. Front Oncol 2022; 12:896840. [PMID: 35692795 PMCID: PMC9178109 DOI: 10.3389/fonc.2022.896840] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/02/2022] [Indexed: 12/24/2022] Open
Abstract
Cervical cancer (CC) is one of the three majors gynecological malignancies, which seriously threatens women’s health and life. Radiotherapy (RT) is one of the most common treatments for cervical cancer, which can reduce local recurrence and prolong survival in patients with cervical cancer. However, the resistance of cancer cells to Radiotherapy are the main cause of treatment failure in patients with cervical cancer. Long non-coding RNAs (LncRNAs) are a group of non-protein-coding RNAs with a length of more than 200 nucleotides, which play an important role in regulating the biological behavior of cervical cancer. Recent studies have shown that LncRNAs play a key role in regulating the sensitivity of radiotherapy for cervical cancer. In this review, we summarize the structure and function of LncRNAs and the molecular mechanism of radiosensitivity in cervical cancer, list the LncRNAs associated with radiosensitivity in cervical cancer, analyze their potential mechanisms, and discuss the potential clinical application of these LncRNAs in regulating radiosensitivity in cervical cancer.
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Affiliation(s)
- Hanqun Zhang
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Chunju Fang
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Zhiyu Feng
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Tingting Xia
- Department of Nephrology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Liang Lu
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Min Luo
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Yanping Chen
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
| | - Yuncong Liu
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
- *Correspondence: Yuncong Liu, ; Yong Li,
| | - Yong Li
- Department of Oncology, Guizhou Provincial People’s Hospital, Guizhou, China
- *Correspondence: Yuncong Liu, ; Yong Li,
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12
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Value of Diffusion Imaging in Prognosticating Outcomes Among Patients of Cervix Cancer. INDIAN JOURNAL OF GYNECOLOGIC ONCOLOGY 2022. [DOI: 10.1007/s40944-022-00614-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Kumar K, Bose S, Chakrabarti S. Identification of Cross-Pathway Connections via Protein-Protein Interactions Linked to Altered States of Metabolic Enzymes in Cervical Cancer. Front Med (Lausanne) 2021; 8:736495. [PMID: 34790674 PMCID: PMC8591138 DOI: 10.3389/fmed.2021.736495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/29/2021] [Indexed: 01/08/2023] Open
Abstract
Metabolic reprogramming is one of the emerging hallmarks of cancer cells. Various factors, such as signaling proteins (S), miRNA, and transcription factors (TFs), may play important roles in altering the metabolic status in cancer cells by interacting with metabolic enzymes either directly or via protein-protein interactions (PPIs). Therefore, it is important to understand the coordination among these cellular pathways, which may provide better insight into the molecular mechanism behind metabolic adaptations in cancer cells. In this study, we have designed a cervical cancer-specific supra-interaction network where signaling pathway proteins, TFs, and microRNAs (miRs) are connected to metabolic enzymes via PPIs to investigate novel molecular targets and connections/links/paths regulating the metabolic enzymes. Using publicly available omics data and PPIs, we have developed a Hidden Markov Model (HMM)-based mathematical model yielding 94, 236, and 27 probable links/paths connecting signaling pathway proteins, TFs, and miRNAs to metabolic enzymes, respectively, out of which 83 paths connect to six common metabolic enzymes (RRM2, NDUFA11, ENO2, EZH2, AKR1C2, and TYMS). Signaling proteins (e.g., PPARD, BAD, GNB5, CHECK1, PAK2, PLK1, BRCA1, MAML3, and SPP1), TFs (e.g., KAT2B, ING1, MED1, ZEB1, AR, NCOA2, EGR1, TWIST1, E2F1, ID4, RBL1, ESR1, and HSF2), and miR (e.g., mir-147a, mir-593-5p, mir-138-5p, mir-16-5p, and mir-15b-5p) were found to regulate two key metabolic enzymes, EZH2 and AKR1C2, with altered metabolites (L-lysine and tetrahydrodeoxycorticosterone, THDOC) status in cervical cancer. We believe, the biology-based approach of our system will pave the way for future studies, which could be aimed toward identifying novel signaling, transcriptional, and post-transcriptional regulators of metabolic alterations in cervical cancer.
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Affiliation(s)
- Krishna Kumar
- Structural Biology and Bioinformatics Division, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India
| | - Sarpita Bose
- Structural Biology and Bioinformatics Division, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India
| | - Saikat Chakrabarti
- Structural Biology and Bioinformatics Division, Council of Scientific & Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India
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14
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Logesh D, Vallikkadan MS, Leena MM, Moses J, Anandharamakrishnan C. Advances in microfluidic systems for the delivery of nutraceutical ingredients. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.07.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Asperud J, Arous D, Edin NFJ, Malinen E. Spatially fractionated radiotherapy: tumor response modelling including immunomodulation. Phys Med Biol 2021; 66. [PMID: 34298527 DOI: 10.1088/1361-6560/ac176b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 07/23/2021] [Indexed: 01/20/2023]
Abstract
A mathematical tumor response model has been developed, encompassing the interplay between immune cells and cancer cells initiated by either partial or full tumor irradiation. The iterative four-compartment model employs the linear-quadratic radiation response theory for four cell types: active and inactive cytotoxic T lymphocytes (immune cells, CD8+T cells in particular), viable cancer cells (undamaged and reparable cells) and doomed cells (irreparably damaged cells). The cell compartment interactions are calculated per day, with total tumor volume (TV) as the main quantity of interest. The model was fitted to previously published data on syngeneic xenografts (67NR breast carcinoma and Lewis lung carcinoma; (Markovskyet al2019Int. J. Radiat. Oncol. Biol. Phys.103697-708)) subjected to single doses of 10 or 15 Gy by 50% (partial) or 100% (full) TV irradiation. The experimental data included effects from anti-CD8+antibodies and immunosuppressive drugs. Using a new optimization method, promising fits were obtained where the lowest and highest root-mean-squared error values were observed for anti-CD8+treatment and unirradiated control data, respectively, for both cell types. Additionally, predictive capabilities of the model were tested by using the estimated model parameters to predict scenarios for higher doses and different TV irradiation fractions. Here, mean relative deviations in the range of 19%-34% from experimental data were found. However, more validation data is needed to conclude on the model's predictive capabilities. In conclusion, the model was found useful in evaluating the impact from partial and full TV irradiation on the immune response and subsequent tumor growth. The model shows potential to support and guide spatially fractionated radiotherapy in future pre-clinical and clinical studies.
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Affiliation(s)
- Jonas Asperud
- Department of Physics, University of Oslo, PO Box 1048 Blindern, N-0316 Oslo, Norway
| | - Delmon Arous
- Department of Physics, University of Oslo, PO Box 1048 Blindern, N-0316 Oslo, Norway.,Department of Medical Physics, The Norwegian Radium Hospital, Oslo University Hospital, PO Box 4953 Nydalen, N-0424 Oslo, Norway
| | | | - Eirik Malinen
- Department of Physics, University of Oslo, PO Box 1048 Blindern, N-0316 Oslo, Norway.,Department of Medical Physics, The Norwegian Radium Hospital, Oslo University Hospital, PO Box 4953 Nydalen, N-0424 Oslo, Norway
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16
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Niculescu AG, Chircov C, Bîrcă AC, Grumezescu AM. Nanomaterials Synthesis through Microfluidic Methods: An Updated Overview. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:864. [PMID: 33800636 PMCID: PMC8066900 DOI: 10.3390/nano11040864] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/14/2021] [Accepted: 03/24/2021] [Indexed: 01/10/2023]
Abstract
Microfluidic devices emerged due to an interdisciplinary "collision" between chemistry, physics, biology, fluid dynamics, microelectronics, and material science. Such devices can act as reaction vessels for many chemical and biological processes, reducing the occupied space, equipment costs, and reaction times while enhancing the quality of the synthesized products. Due to this series of advantages compared to classical synthesis methods, microfluidic technology managed to gather considerable scientific interest towards nanomaterials production. Thus, a new era of possibilities regarding the design and development of numerous applications within the pharmaceutical and medical fields has emerged. In this context, the present review provides a thorough comparison between conventional methods and microfluidic approaches for nanomaterials synthesis, presenting the most recent research advancements within the field.
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Affiliation(s)
- Adelina-Gabriela Niculescu
- Faculty of Engineering in Foreign Languages, University Politehnica of Bucharest, 060042 Bucharest, Romania;
| | - Cristina Chircov
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania; (C.C.); (A.C.B.)
| | - Alexandra Cătălina Bîrcă
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania; (C.C.); (A.C.B.)
| | - Alexandru Mihai Grumezescu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania; (C.C.); (A.C.B.)
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
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17
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Advances in microfluidic synthesis and coupling with synchrotron SAXS for continuous production and real-time structural characterization of nano-self-assemblies. Colloids Surf B Biointerfaces 2021; 201:111633. [PMID: 33639513 DOI: 10.1016/j.colsurfb.2021.111633] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/03/2021] [Accepted: 02/15/2021] [Indexed: 02/06/2023]
Abstract
Microfluidic platforms have become highly attractive tools for synthesis of nanoparticles, including lipid nano-self-assemblies, owing to unique features and at least three important aspects inherent to miniaturized micro-devices. Firstly, the fluids flow under controlled conditions in the microchannels, providing well-defined flow profiles and shorter diffusion lengths that play important roles in enhancing the continuous production of lipid and polymer nanoparticles with relatively narrow size distributions. Secondly, various geometries adapted to microfluidic device designs can be utilized for enhancing the colloidal stability of nanoparticles and improving their drug loading. Thirdly, microfluidic devices are usually compatible with in situ characterization methods for real-time monitoring of processes occurring inside the microchannels. This is unlike conventional nanoparticle synthesis methods, where a final solution or withdrawn aliquots are separately analysed. These features inherent to microfluidic devices provide a tool-set allowing not only precise nanoparticle size control, but also real-time analyses for process optimization. In this review, we focus on recent advances and developments in the use of microfluidic devices for synthesis of lipid nanoparticles. We present different designs based on hydrodynamic flow focusing, droplet-based methods and controlled microvortices, and discuss integration of microfluidic platforms with synchrotron small-angle X ray scattering (SAXS) for in situ structural characterization of lipid nano-self-assemblies under continuous flow conditions, along with major challenges and future directions in this research area.
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18
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Tan ZM, Lai GP, Pandey M, Srichana T, Pichika MR, Gorain B, Bhattamishra SK, Choudhury H. Novel Approaches for the Treatment of Pulmonary Tuberculosis. Pharmaceutics 2020; 12:pharmaceutics12121196. [PMID: 33321797 PMCID: PMC7763148 DOI: 10.3390/pharmaceutics12121196] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/27/2020] [Accepted: 12/01/2020] [Indexed: 12/12/2022] Open
Abstract
Tuberculosis (TB) is a contagious airborne disease caused by Mycobacterium tuberculosis, which primarily affects human lungs. The progression of drug-susceptible TB to drug-resistant strains, MDR-TB and XDR-TB, has become worldwide challenge in eliminating TB. The limitations of conventional TB treatment including frequent dosing and prolonged treatment, which results in patient’s noncompliance to the treatment because of treatment-related adverse effects. The non-invasive pulmonary drug administration provides the advantages of targeted-site delivery and avoids first-pass metabolism, which reduced the dose requirement and systemic adverse effects of the therapeutics. With the modification of the drugs with advanced carriers, the formulations may possess sustained released property, which helps in reducing the dosing frequency and enhanced patients’ compliances. The dry powder inhaler formulation is easy to handle and storage as it is relatively stable compared to liquids and suspension. This review mainly highlights the aerosolization properties of dry powder inhalable formulations with different anti-TB agents to understand and estimate the deposition manner of the drug in the lungs. Moreover, the safety profile of the novel dry powder inhaler formulations has been discussed. The results of the studies demonstrated that dry powder inhaler formulation has the potential in enhancing treatment efficacy.
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Affiliation(s)
- Zhi Ming Tan
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia; (Z.M.T.); (G.P.L.)
| | - Gui Ping Lai
- School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia; (Z.M.T.); (G.P.L.)
| | - Manisha Pandey
- Department of Pharmaceutical Technology, School of Pharmacy, International Medical University, Jalan Jalil Perkasa, Bukit Jalil, Kuala Lumpur 57000, Malaysia
- Centre for Bioactive Molecules and Drug Delivery, Institute for Research, Development and Innovation, International Medical University, Kuala Lumpur 57000, Malaysia;
- Correspondence: (M.P.); (H.C.)
| | - Teerapol Srichana
- Drug Delivery System Excellence Center, Prince of Songkla University, Songkhla 90110, Thailand;
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Songkhla 90110, Thailand
| | - Mallikarjuna Rao Pichika
- Centre for Bioactive Molecules and Drug Delivery, Institute for Research, Development and Innovation, International Medical University, Kuala Lumpur 57000, Malaysia;
- Department of Pharmaceutical Chemistry, School of Pharmacy, International Medical University, Kuala Lumpur 57000, Malaysia
| | - Bapi Gorain
- School of Pharmacy, Faculty of Health and Medical Sciences, Taylor’s University, Subang Jaya, Selangor 47500, Malaysia;
- Centre for Drug Delivery and Molecular Pharmacology, Faculty of Health and Medical Sciences, Taylor’s University, Subang Jaya, Selangor 47500, Malaysia
| | - Subrat Kumar Bhattamishra
- Department of Life Science, School of Pharmacy, International Medical University, Jalan Jalil Perkasa, Bukit Jalil, Kuala Lumpur 57000, Malaysia;
| | - Hira Choudhury
- Department of Pharmaceutical Technology, School of Pharmacy, International Medical University, Jalan Jalil Perkasa, Bukit Jalil, Kuala Lumpur 57000, Malaysia
- Centre for Bioactive Molecules and Drug Delivery, Institute for Research, Development and Innovation, International Medical University, Kuala Lumpur 57000, Malaysia;
- Correspondence: (M.P.); (H.C.)
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19
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Seaberg J, Kaabipour S, Hemmati S, Ramsey JD. A rapid millifluidic synthesis of tunable polymer-protein nanoparticles. Eur J Pharm Biopharm 2020; 154:127-135. [DOI: 10.1016/j.ejpb.2020.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/29/2020] [Accepted: 07/06/2020] [Indexed: 10/23/2022]
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20
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Saka R, Jain H, Kommineni N, Chella N, Khan W. Enhanced penetration and improved therapeutic efficacy of bexarotene via topical liposomal gel in imiquimod induced psoriatic plaque model in BALB/c mice. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101691] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Arend F, Oechsner M, Weidenbächer CB, Combs SE, Borm KJ, Duma MN. Correlations of UICC tumor stage and tumor regression on T2-weighted MRI sequences during definitive radiotherapy of cervical cancer. TUMORI JOURNAL 2020; 107:139-144. [PMID: 32701045 DOI: 10.1177/0300891620940024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND The purpose of this study is to detect a correlation between the preradiation tumor staging and the relative volumetric regression of the primary tumor through external beam radiation therapy (EBRT). METHODS Clinical data of 32 patients with a mean age of 60±12 years treated with primary radiation therapy (RT) of cervical carcinoma were analyzed. Union Internationale Contre le Cancer (UICC) stages were T1 = 4 patients, T2 = 15 patients, T3 = 8 patients, T4 = 5 patients; N1 = 26 patients, N0 = 6 patients; and M0 = 25 patients, M1 = 7 patients. All patients received pelvic magnetic resonance imaging (MRI) before RT as well as during RT. The cervical primary tumor was delineated as gross tumor volume (ptGTV) in T2-weighted MRI sequences. We compared ptGTV reduction by stage, lymph node status, metastatic status, and grading. RESULTS Mean ptGTV reduction during RT was 61.4±28.9%. T1 tumors shrank by 88.2±13.4%, T2 by 67.6±28.7%, T3 by 50.8±23.6%, and T4 by 38.7±27.2%. The difference in tumor shrinkage was statistically significant between the lower T stages and the higher T stages (p < 0.05). There was no statistical difference in the mean ptGTV before treatment in the group with lymph node metastases (LNM) (54.1±47.7 cm3) as compared to the group without LNM (76.6±52.2 cm3). Nonetheless, ptGTV shrank significantly differently: by 68.9±25.7% (N1 patients) and by 29.0±17.7% (N0 patients). No significant differences in ptGTV shrinkage were observed in M0 versus M1 and G2 versus G3 tumors. CONCLUSION There is a correlation between mean ptGTV reduction during EBRT and tumor stages. Tumors with higher T stages shrank less under radiation treatment, and the ptGTV of N1 patients responded better than that of N0 patients.
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Affiliation(s)
- Florian Arend
- Department of Radiotherapy, Klinikum Rechts der Isar, Technical University Munich, München, Bayern, Germany.,Faculty of Medicine, Technical University Munich, München, Bayern, Germany
| | - Markus Oechsner
- Department of Radiotherapy, Klinikum Rechts der Isar, Technical University Munich, München, Bayern, Germany
| | - Clara B Weidenbächer
- Department of Radiotherapy, Klinikum Rechts der Isar, Technical University Munich, München, Bayern, Germany
| | - Stephanie E Combs
- Department of Radiotherapy, Klinikum Rechts der Isar, Technical University Munich, München, Bayern, Germany.,Institute of Innovative Radiotherapy, Helmholtz Zentrum München, München, Germany.,Deutsches Konsortium für Translationale Krebsforschung (DKTK)-Partner Site Munich, München, Germany
| | - Kai J Borm
- Department of Radiotherapy, Klinikum Rechts der Isar, Technical University Munich, München, Bayern, Germany
| | - Marciana N Duma
- Department of Radiotherapy, Klinikum Rechts der Isar, Technical University Munich, München, Bayern, Germany.,Department of Radiotherapy and Radiation Oncology, University Hospital of the Friedrich Schiller University, Jena, Germany
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22
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Filipczak N, Pan J, Yalamarty SSK, Torchilin VP. Recent advancements in liposome technology. Adv Drug Deliv Rev 2020; 156:4-22. [PMID: 32593642 DOI: 10.1016/j.addr.2020.06.022] [Citation(s) in RCA: 257] [Impact Index Per Article: 64.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 06/16/2020] [Accepted: 06/21/2020] [Indexed: 12/22/2022]
Abstract
The liposomes have continued to be well-recognized as an important nano-sized drug delivery system with attractive properties, such a characteristic bilayer structure assembling the cellular membrane, easy-to-prepare and high bio-compatibility. Extensive effort has been devoted to the development of liposome-based drug delivery systems during the past few decades. Many drug candidates have been encapsulated in liposomes and investigated for reduced toxicity and extended duration of therapeutic effect. The liposomal encapsulation of hydrophilic and hydrophobic small molecule therapeutics as well as other large molecule biologics have been established among different academic and industrial research groups. To date, there has been an increasing number of FDA-approved liposomal-based therapeutics together with more and more undergoing clinical trials, which involve a wide range of applications in anticancer, antibacterial, and antiviral therapies. In order to meet the continuing demand for new drugs in clinics, more recent advancements have been investigated for optimizing liposomal-based drug delivery system with more reproducible preparation technique and a broadened application to novel modalities, including nucleic acid therapies, CRISPR/Cas9 therapies and immunotherapies. This review focuses on the recent liposome' preparation techniques, the excipients of liposomal formulations used in various novel studies and the routes of administration used to deliver liposomes to targeted areas of disease. It aims to update the research in liposomal delivery and highlights future nanotechnological approaches.
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23
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Has C, Sunthar P. A comprehensive review on recent preparation techniques of liposomes. J Liposome Res 2019; 30:336-365. [DOI: 10.1080/08982104.2019.1668010] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- C. Has
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - P. Sunthar
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
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24
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Kapoor B, Gupta R, Gulati M, Singh SK, Khursheed R, Gupta M. The Why, Where, Who, How, and What of the vesicular delivery systems. Adv Colloid Interface Sci 2019; 271:101985. [PMID: 31351415 DOI: 10.1016/j.cis.2019.07.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/06/2019] [Accepted: 07/06/2019] [Indexed: 12/14/2022]
Abstract
Though vesicular delivery systems have been widely explored and reviewed, no comprehensive review exists that covers their development from the inception of the concept to its culmination in the form of regulated marketed formulations. With the advancement of scientific research in the field of nanomedicine, certain category of vesicular delivery systems have successfully reached the global market. Despite extensive research and highly encouraging results in a plethora of pathological conditions in the preclinical studies, translation of these nanomedicines from laboratory to market has been very limited. Aim of this review is to describe comprehensively the various colloidal delivery systems, focusing mainly on their conventional and advanced methods of preparation, different characterization techniques and main success stories of their journey from bench to bedside of the patient. The review also touches the finer nuances of the use of modern formulation approach of DoE (Design of Experiments) in their formulation and the status of regulatory guidelines for the approval of these nanomedicines.
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25
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Kyroudis CA, Dionysiou DD, Kolokotroni EA, Stamatakos GS. Studying the regression profiles of cervical tumours during radiotherapy treatment using a patient-specific multiscale model. Sci Rep 2019; 9:1081. [PMID: 30705291 PMCID: PMC6355788 DOI: 10.1038/s41598-018-37155-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 12/03/2018] [Indexed: 12/24/2022] Open
Abstract
Apart from offering insight into the biomechanisms involved in cancer, many recent mathematical modeling efforts aspire to the ultimate goal of clinical translation, wherein models are designed to be used in the future as clinical decision support systems in the patient-individualized context. Most significant challenges are the integration of multiscale biodata and the patient-specific model parameterization. A central aim of this study was the design of a clinically-relevant parameterization methodology for a patient-specific computational model of cervical cancer response to radiotherapy treatment with concomitant cisplatin, built around a tumour features-based search of the parameter space. Additionally, a methodological framework for the predictive use of the model was designed, including a scoring method to quantitatively reflect the similarity and bilateral predictive ability of any two tumours in terms of their regression profile. The methodology was applied to the datasets of eight patients. Tumour scenarios in accordance with the available longitudinal data have been determined. Predictive investigations identified three patient cases, anyone of which can be used to predict the volumetric evolution throughout therapy of the tumours of the other two with very good results. Our observations show that the presented approach is promising in quantifiably differentiating tumours with distinct regression profiles.
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Affiliation(s)
- Christos A Kyroudis
- In Silico Oncology and In Silico Medicine Group, Institute of Communication and Computer Systems, School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece
| | - Dimitra D Dionysiou
- In Silico Oncology and In Silico Medicine Group, Institute of Communication and Computer Systems, School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece.
| | - Eleni A Kolokotroni
- In Silico Oncology and In Silico Medicine Group, Institute of Communication and Computer Systems, School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece
| | - Georgios S Stamatakos
- In Silico Oncology and In Silico Medicine Group, Institute of Communication and Computer Systems, School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece
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Tumor Boost Using External Beam Radiation in Cervical Cancer Patients Unable to Receive Intracavitary Brachytherapy: Outcome From a Multicenter Retrospective Study (Korean Radiation Oncology Group 1419). Int J Gynecol Cancer 2019; 28:371-378. [PMID: 29189448 DOI: 10.1097/igc.0000000000001155] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
PURPOSE We conducted this study to evaluate the outcomes of external-beam radiotherapy tumor boost (EBRT-B) in cervical cancer patients who could not receive intracavitary brachytherapy. METHODS A total of 11 hospitals provided the data of patients who received EBRT-B during the period from January 2005 through October 2012. RESULTS A total of 75 patients were included. The median radiotherapy dose was 46 Gy (range, 40-54 Gy) for whole pelvis and 24 Gy (range, 9-35 Gy) for EBRT-B. Initial tumor responses assessed at 2 to 6 months after radiotherapy were as follows: 46 with complete response, 22 with partial response, 2 with stable disease, and 3 with progressive disease. After a median follow-up time of 33 months, 30 patients (40.0%) showed disease progression including 21 (28.0%) with local progression. The 5-year local failure-free survival rate was 70.0%. Achieving complete response at the first follow-up visit and an overall treatment time of 53 days or less were significantly related to favorable local failure-free survival. The rate of grade 3 or higher toxicity was 2.6%. CONCLUSIONS Approximately 70% of patients had local tumor control after curative radiotherapy using EBRT-B. Early tumor response and overall treatment time of 53 days or less were closely associated with favorable local control.
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Belfatto A, Jereczek-Fossa BA, Baroni G, Cerveri P. Model-Supported Radiotherapy Personalization: In silico Test of Hyper- and Hypo-Fractionation Effects. Front Physiol 2018; 9:1445. [PMID: 30374310 PMCID: PMC6197078 DOI: 10.3389/fphys.2018.01445] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 09/24/2018] [Indexed: 12/25/2022] Open
Abstract
The need for radiotherapy personalization is now widely recognized, however, it would require considerations not only on the probability of control and survival of the tumor, but also on the possible toxic effects, on the quality of the expected life and the economic efficiency of the treatment. In this paper, we propose a simulation tool that can be integrated into a decision support system that allows selection of the most suitable irradiation regimen. We used a macroscale mathematical model, which includes active and necrotic tumor dynamics and the role of oxygenation to simulate the effects of different hypo-/hyper-fractional regimens using retrospective data of seven virtual patients from as many cervical cancer patients used for its training in a previous study. The results confirmed the heterogeneous response across the patients as a function of treatment regimen and suggested the tumor growth rate as a main factor in the final tumor regression. In addition to the maximum regression, another criterion was suggested to select the most suitable regimen (minimum number of fractions to achieve a regression of 80%) minimizing the toxicity and maximizing the cost-effectiveness ratio. Despite the lack of direct validation, the simulation results are in agreement with the literature findings that suggest the need for hypo-fractionated regimens in case of aggressive tumor phenotypes. Finally, the paper suggests a possible exploitation of the model within a tool to support clinical decisions.
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Affiliation(s)
- Antonella Belfatto
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy
| | - Barbara Alicja Jereczek-Fossa
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy,Division of Radiotherapy, European Institute of Oncology, Milan, Italy
| | - Guido Baroni
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy
| | - Pietro Cerveri
- Department of Electronics, Information and Bioengineering, Politecnico di Milano, Milan, Italy,*Correspondence: Pietro Cerveri,
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Sarfraz M, Afzal A, Yang T, Gai Y, Raza SM, Khan MW, Cheng Y, Ma X, Xiang G. Development of Dual Drug Loaded Nanosized Liposomal Formulation by A Reengineered Ethanolic Injection Method and Its Pre-Clinical Pharmacokinetic Studies. Pharmaceutics 2018; 10:pharmaceutics10030151. [PMID: 30200557 PMCID: PMC6161256 DOI: 10.3390/pharmaceutics10030151] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 08/29/2018] [Accepted: 08/31/2018] [Indexed: 12/15/2022] Open
Abstract
Oleanolic acid (OA), which is a natural pentacyclic terpenoid, has been identified for hepato-protective, nephron-protective and cardio-tonic properties. In contrast, doxorubicin (DOX) is a famous anti-cancer drug but its efficacy is a question mark because of its known cardio-toxicity. We developed a combined nanoliposomal formulation of DOX with OA, as adjuvant, to overwhelm toxic effects of DOX without compromising anticancer activity. The entrapment efficiency and the particle size were brought in limit by the reengineered ethanolic injection method (REIM), without further extrusion. The developed formulations were stable over the study period of two months. A modified HPLC method was employed for the analysis of OA (drug retention time, Tr = 12 ± 1 min). The recovery of OA against spiked plasma samples was more than 90%. MTT assay showed anti-apoptotic synergism against HepG2 cells at non-fixed ratio (combination index, CI < 1). A sustained in vivo drug release of experimental drugs was depicted over 24 h. Histopathological examination and laboratory findings indicated no visible sign of toxicity in the treated mice group against combined delivery. Hence, this combined nanoliposomal formulation was tagged as a safer therapy for the DOX based cancer treatments.
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Affiliation(s)
- Muhammad Sarfraz
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
- International Joint Laboratory of Nuclear Protein, Henan University, Kaifeng 475001/475004, Henan, China.
- Faculty of Pharmacy, The University of Lahore (UOL), Lahore 56400, Punjab, Pakistan.
| | - Attia Afzal
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
- International Joint Laboratory of Nuclear Protein, Henan University, Kaifeng 475001/475004, Henan, China.
- Faculty of Pharmacy, The University of Lahore (UOL), Lahore 56400, Punjab, Pakistan.
- Institute of Pharmacy, Lahore College for Women University (LCWU), Lahore 54610, Punjab, Pakistan.
| | - Tan Yang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Yongkang Gai
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Shahid Masood Raza
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Muhammad Waseem Khan
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Yao Cheng
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Xiang Ma
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Guangya Xiang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
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Fan L, Huang C, Li J, Gao T, Lin Z, Yao T. Long non‑coding RNA urothelial cancer associated 1 regulates radioresistance via the hexokinase 2/glycolytic pathway in cervical cancer. Int J Mol Med 2018; 42:2247-2259. [PMID: 30015920 DOI: 10.3892/ijmm.2018.3778] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 06/15/2018] [Indexed: 11/06/2022] Open
Abstract
Cervical cancer is one of the most common types of female malignant tumor. It is well established that radiotherapy (RT) is the first‑line treatment of cervical cancer; however, radioresistance is a substantial obstacle to cervical cancer RT. At present, the mechanism underlying radioresistance remains unclear. Emerging evidence has demonstrated that long non‑coding RNAs (lncRNAs) function as crucial regulators of diverse cancers. Aerobic glycolysis, which is a common phenomenon in cancer cells, is associated with various biological functions, including radioresistance. To the best of our knowledge, the present study is the first to explore the role of the lncRNA urothelial cancer associated 1 (UCA1) in cervical cancer radioresistance. In the present study, irradiation was used to establish irradiation‑resistant (IRR) cells, after which a clonogenic survival assay was used to validate radioresistance, reverse transcription‑quantitative polymerase chain reaction was used to evaluate the expression levels of UCA1 and western blotting was conducted to detect the expression levels of glycolysis‑related proteins. In addition, a glucose/lactate assay kit was used to evaluate glucose/lactate concentrations and cells were transfected with small interfering RNA/pcDNA to regulate the expression of UCA1. Following the establishment of IRR cell lines (SiHa‑IRR and HeLa‑IRR), it was demonstrated that SiHa‑IRR and HeLa‑IRR cells exhibited increased expression levels of UCA1 and enhanced glycolysis. Dysregulation of UCA1 and inhibition of glycolysis affected radioresistance of cervical cancer cells. In addition, the results indicated that UCA1 promoted radioresistance‑associated glycolysis in SiHa‑IRR and HeLa‑IRR cells, with the enzyme hexokinase 2 (HK2) acting as a significant regulator in this process. Inhibiting glycolysis by 2‑DG reversed the effects of UCA1 overexpression on HK2 protein expression and radioresistance in SiHa and HeLa cells. Taken together, these findings suggested that UCA1 may have an important role in regulating radioresistance through the HK2/glycolytic pathway, providing novel potential targets to improve cervical cancer RT.
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Affiliation(s)
- Li Fan
- Department of Gynecological Oncology, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510288, P.R. China
| | - Chunxian Huang
- Department of Gynecological Oncology, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510288, P.R. China
| | - Jing Li
- Department of Gynecological Oncology, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510288, P.R. China
| | - Tian Gao
- Department of Gynecological Oncology, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510288, P.R. China
| | - Zhongqiu Lin
- Department of Gynecological Oncology, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510288, P.R. China
| | - Tingting Yao
- Department of Gynecological Oncology, Sun Yat‑sen Memorial Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510288, P.R. China
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Dorta-Estremera S, Colbert LE, Nookala SS, Yanamandra AV, Yang G, Delgado A, Mikkelson M, Eifel P, Jhingran A, Lilie LL, Welsh J, Schmeler K, Sastry JK, Klopp A. Kinetics of Intratumoral Immune Cell Activation During Chemoradiation for Cervical Cancer. Int J Radiat Oncol Biol Phys 2018; 102:593-600. [PMID: 30017792 DOI: 10.1016/j.ijrobp.2018.06.404] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/13/2018] [Accepted: 06/30/2018] [Indexed: 12/17/2022]
Abstract
PURPOSE Radiation therapy has direct cytotoxic effects on tumor-infiltrating lymphocytes, but it also has immune stimulatory effects that increase immune cell infiltration. The dynamics of these competing effects on immune cells at the site of the tumor are poorly characterized during chemoradiation treatment (CRT) because of the difficulty of obtaining consecutive tumor biopsies. We used a minimally invasive cervical cytobrushing method to analyze the kinetics of intratumoral immune cell changes in patients with cervical cancer during CRT. METHODS AND MATERIALS Cervical brushings were obtained from 20 patients with cervical cancer at baseline and during fractionated radiation therapy and cisplatin (weeks 1, 3, and 5). Matching peripheral blood mononuclear cells were obtained from 9 patients at the same time points. Cells were analyzed using multispectral flow cytometry to identify T cell and myeloid cell subsets and their activation status. Changes in immune cell subsets throughout treatment were calculated using matched-pair analysis with Wilcoxon rank sum test. RESULTS We observed a significant decline in CD3+ total T cells, as well as CD8+ and CD4+ T-cell subsets in the first week of treatment from baseline, followed by variable expansion at weeks 3 and 5. This coincided with higher levels of proliferating CD8+ T cells expressing Ki67 at week 3 of treatment. The percentages of activated CD8+ T cells expressing CD69 continuously increased over the course of treatment, whereas the percentage of activated CD11c+CD11b- dendritic cells was highest during the first week. Many of these changes were not observed in the blood. CONCLUSIONS Our results identified immune dynamic changes during CRT, indicating that CRT may be immune activating at the site of the tumor. This study also suggests the importance of sequential analyses of the local tumor microenvironment in addition to peripheral blood.
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Affiliation(s)
| | - Lauren E Colbert
- Department of Radiation Oncology, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Sita S Nookala
- Department of Immunology, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Ananta V Yanamandra
- Department of Immunology, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Guojun Yang
- Department of Immunology, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Andrea Delgado
- Department of Radiation Oncology, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Megan Mikkelson
- Department of Radiation Oncology, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Patricia Eifel
- Department of Radiation Oncology, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Anuja Jhingran
- Department of Radiation Oncology, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Lin L Lilie
- Department of Radiation Oncology, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - James Welsh
- Department of Radiation Oncology, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Kathleen Schmeler
- Department of Gynecologic Oncology and Reproductive Medicine, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Jagannadha K Sastry
- Department of Immunology, University of Texas, MD Anderson Cancer Center, Houston, Texas
| | - Ann Klopp
- Department of Radiation Oncology, University of Texas, MD Anderson Cancer Center, Houston, Texas.
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Gago-Arias A, Sánchez-Nieto B, Espinoza I, Karger CP, Pardo-Montero J. Impact of different biologically-adapted radiotherapy strategies on tumor control evaluated with a tumor response model. PLoS One 2018; 13:e0196310. [PMID: 29698534 PMCID: PMC5919644 DOI: 10.1371/journal.pone.0196310] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 04/10/2018] [Indexed: 11/26/2022] Open
Abstract
Motivated by the capabilities of modern radiotherapy techniques and by the recent developments of functional imaging techniques, dose painting by numbers (DPBN) was proposed to treat tumors with heterogeneous biological characteristics. This work studies different DPBN optimization techniques for virtual head and neck tumors assessing tumor response in terms of cell survival and tumor control probability with a previously published tumor response model (TRM). Uniform doses of 2 Gy are redistributed according to the microscopic oxygen distribution and the density distribution of tumor cells in four virtual tumors with different biological characteristics. In addition, two different optimization objective functions are investigated, which: i) minimize tumor cell survival (OFsurv) or; ii) maximize the homogeneity of the density of surviving tumor cells (OFstd). Several adaptive schemes, ranging from single to daily dose optimization, are studied and the treatment response is compared to that of the uniform dose. The results show that the benefit of DPBN treatments depends on the tumor reoxygenation capability, which strongly differed among the set of virtual tumors investigated. The difference between daily (fraction by fraction) and three weekly optimizations (at the beginning of weeks 1, 3 and 4) was found to be small, and higher benefit was observed for the treatments optimized using OFsurv. This in silico study corroborates the hypothesis that DPBN may be beneficial for treatments of tumors which show reoxygenation during treatment, and that a few optimizations may be sufficient to achieve this therapeutic benefit.
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Affiliation(s)
- Araceli Gago-Arias
- Instituto de Física, Pontificia Universidad Católica de Chile, Santiago, Chile
- * E-mail:
| | | | - Ignacio Espinoza
- Instituto de Física, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Christian P. Karger
- National Center for Radiation Research in Oncology (NCRO), Heidelberg Institute for Radiation Oncology (HIRO), Heidelberg, Germany
| | - Juan Pardo-Montero
- Grupo de Imaxe Molecular, Instituto de Investigación Sanitaria (IDIS), Santiago de Compostela, Spain
- Servizo de Radiofísica e Protección Radiolóxica, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain
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32
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Recent advances in smart biotechnology: Hydrogels and nanocarriers for tailored bioactive molecules depot. Adv Colloid Interface Sci 2017; 249:163-180. [PMID: 28527520 DOI: 10.1016/j.cis.2017.05.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 05/06/2017] [Accepted: 05/08/2017] [Indexed: 12/18/2022]
Abstract
Over the past ten years, the global biopharmaceutical market has remarkably grown, with ten over the top twenty worldwide high performance medical treatment sales being biologics. Thus, biotech R&D (research and development) sector is becoming a key leading branch, with expanding revenues. Biotechnology offers considerable advantages compared to traditional therapeutic approaches, such as reducing side effects, specific treatments, higher patient compliance and therefore more effective treatments leading to lower healthcare costs. Within this sector, smart nanotechnology and colloidal self-assembling systems represent pivotal tools able to modulate the delivery of therapeutics. A comprehensive understanding of the processes involved in the self-assembly of the colloidal structures discussed therein is essential for the development of relevant biomedical applications. In this review we report the most promising and best performing platforms for specific classes of bioactive molecules and related target, spanning from siRNAs, gene/plasmids, proteins/growth factors, small synthetic therapeutics and bioimaging probes.
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33
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Michelon M, Oliveira DRB, de Figueiredo Furtado G, Gaziola de la Torre L, Cunha RL. High-throughput continuous production of liposomes using hydrodynamic flow-focusing microfluidic devices. Colloids Surf B Biointerfaces 2017; 156:349-357. [DOI: 10.1016/j.colsurfb.2017.05.033] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 04/20/2017] [Accepted: 05/10/2017] [Indexed: 11/26/2022]
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34
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Moreno-Acosta P, Vallard A, Carrillo S, Gamboa O, Romero-Rojas A, Molano M, Acosta J, Mayorga D, Rancoule C, Garcia MA, Cotes Mestre M, Magné N. Biomarkers of resistance to radiation therapy: a prospective study in cervical carcinoma. Radiat Oncol 2017; 12:120. [PMID: 28716107 PMCID: PMC5514482 DOI: 10.1186/s13014-017-0856-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 07/12/2017] [Indexed: 12/19/2022] Open
Abstract
Background Clinical parameters and proteins have recently been suggested as possible causes of radiotherapy (RT) resistance in cervical carcinoma (CC). The objective of the present study was to validate prognostic biomarkers of radiation resistance. Methods The present prospective study included patients undergoing RT with curative intent for histologically proven locally advanced squamous cell CC. Tissues and blood samples were systematically collected before RT initiation. Immuno-histochemistry was performed (IGF-IR α and β, GAPDH, HIF-1 alpha, Survivin, GLUT1, CAIX, hTERT and HKII). Response to radiation was assessed through tumour response 3 months after RT completion, through overall survival (OS) and through progression-free survival (PFS). Results One hundred forty nine patients with a mean age of 46 years were included, with FIGO IIB (n = 53) and FIGO IIIB (n = 96) CCs. 61 patients were treated with exclusive RT + brachytherapy and 88 underwent chemo-radiotherapy + brachytherapy. Our findings suggest an association between hemoglobin level (Hb) (>11 g/dL) and 3 months complete response (p = 0.02). Hb level < 11 g/dL was associated with decreased PFS (p = 0.05) and OS (p = 0.08). Overexpression of IGF-1R β was correlated with a decreased OS (p = 0.007). Overexpression of GLUT1 was marginally correlated with reduced OS (p = 0.05). PFS and OS were significantly improved in patients undergoing chemoradiation versus exclusive radiotherapy (PFS: p = 0.04; OS: p = 0.01). Conclusions IGF-1R β overexpression and Hb level (≤11 g/dl) were associated with poor prognosis, and thus appear to be possible interesting biomarkers of radiation resistance. Our results corroborate previous pre-clinical studies suggesting IGF-1R and hypoxia to be part of the biological pathways leading to radio-resistance.
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Affiliation(s)
- P Moreno-Acosta
- Research Group in Radiobiology Clinical, Molecular and Cellular, National Cancer Institute, Bogotá, Colombia.,Research Group in Cancer Biology, National Cancer Institute, Bogotá, Colombia
| | - A Vallard
- Department of Radiation Oncology, Institut de cancérologie de la Loire-Lucien Neuwirth, 108 bis, Avenue Albert Raimond, BP 60008, 42271, Saint-Priest en Jarez, France.
| | - S Carrillo
- Research Group in Radiobiology Clinical, Molecular and Cellular, National Cancer Institute, Bogotá, Colombia
| | - O Gamboa
- Research Group in Cancer Biology, National Cancer Institute, Bogotá, Colombia.,Unit of Analysis, National Cancer Institute, Bogotá, Colombia
| | - A Romero-Rojas
- Group of Pathology Oncology, National Cancer Institute, Bogotá, Colombia
| | - M Molano
- Microbiology and Infection Diseases, The Royal Women's Hospital, Melbourne, Australia
| | - J Acosta
- Pathology Group, National University of Colombia, Bogotá, Colombia
| | - D Mayorga
- Research Group in Cancer Biology, National Cancer Institute, Bogotá, Colombia
| | - C Rancoule
- Department of Radiation Oncology, Institut de cancérologie de la Loire-Lucien Neuwirth, 108 bis, Avenue Albert Raimond, BP 60008, 42271, Saint-Priest en Jarez, France
| | - M A Garcia
- Department of Radiation Oncology, Institut de cancérologie de la Loire-Lucien Neuwirth, 108 bis, Avenue Albert Raimond, BP 60008, 42271, Saint-Priest en Jarez, France
| | - M Cotes Mestre
- Research Group in Cancer Biology, National Cancer Institute, Bogotá, Colombia.,Group of Radiotherapy and Medical Physical, National Cancer Institute, Bogotá, Colombia
| | - N Magné
- Department of Radiation Oncology, Institut de cancérologie de la Loire-Lucien Neuwirth, 108 bis, Avenue Albert Raimond, BP 60008, 42271, Saint-Priest en Jarez, France
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Jeong J, Oh JH, Sonke JJ, Belderbos J, Bradley JD, Fontanella AN, Rao SS, Deasy JO. Modeling the Cellular Response of Lung Cancer to Radiation Therapy for a Broad Range of Fractionation Schedules. Clin Cancer Res 2017; 23:5469-5479. [PMID: 28539466 DOI: 10.1158/1078-0432.ccr-16-3277] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 04/17/2017] [Accepted: 05/16/2017] [Indexed: 12/25/2022]
Abstract
Purpose: To demonstrate that a mathematical model can be used to quantitatively understand tumor cellular dynamics during a course of radiotherapy and to predict the likelihood of local control as a function of dose and treatment fractions.Experimental Design: We model outcomes for early-stage, localized non-small cell lung cancer (NSCLC), by fitting a mechanistic, cellular dynamics-based tumor control probability that assumes a constant local supply of oxygen and glucose. In addition to standard radiobiological effects such as repair of sub-lethal damage and the impact of hypoxia, we also accounted for proliferation as well as radiosensitivity variability within the cell cycle. We applied the model to 36 published and two unpublished early-stage patient cohorts, totaling 2,701 patients.Results: Precise likelihood best-fit values were derived for the radiobiological parameters: α [0.305 Gy-1; 95% confidence interval (CI), 0.120-0.365], the α/β ratio (2.80 Gy; 95% CI, 0.40-4.40), and the oxygen enhancement ratio (OER) value for intermediately hypoxic cells receiving glucose but not oxygen (1.70; 95% CI, 1.55-2.25). All fractionation groups are well fitted by a single dose-response curve with a high χ2 P value, indicating consistency with the fitted model. The analysis was further validated with an additional 23 patient cohorts (n = 1,628). The model indicates that hypofractionation regimens overcome hypoxia (and cell-cycle radiosensitivity variations) by the sheer impact of high doses per fraction, whereas lower dose-per-fraction regimens allow for reoxygenation and corresponding sensitization, but lose effectiveness for prolonged treatments due to proliferation.Conclusions: This proposed mechanistic tumor-response model can accurately predict overtreatment or undertreatment for various treatment regimens. Clin Cancer Res; 23(18); 5469-79. ©2017 AACR.
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Affiliation(s)
- Jeho Jeong
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York.
| | - Jung Hun Oh
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jan-Jakob Sonke
- Department of Radiation Oncology, The Netherlands Cancer Institute, Postbus, Amsterdam, the Netherlands
| | - Jose Belderbos
- Department of Radiation Oncology, The Netherlands Cancer Institute, Postbus, Amsterdam, the Netherlands
| | - Jeffrey D Bradley
- Department of Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Andrew N Fontanella
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Shyam S Rao
- Department of Radiation Oncology, University of California, Davis Comprehensive Cancer Center, Sacramento, California
| | - Joseph O Deasy
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York.
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Huang SM, Kuo CH, Chen CA, Liu YC, Shieh CJ. RSM and ANN modeling-based optimization approach for the development of ultrasound-assisted liposome encapsulation of piceid. ULTRASONICS SONOCHEMISTRY 2017; 36:112-122. [PMID: 28069190 DOI: 10.1016/j.ultsonch.2016.11.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 11/08/2016] [Accepted: 11/08/2016] [Indexed: 06/06/2023]
Abstract
Piceid, a naturally occurring derivative of resveratrol found in many plants, has recently been considered as a potential nutraceutical. However, its poorly water-soluble property could cause a coupled problem of biological activities concerning drug dispersion and absorption in human body, which is still unsolved now. Liposome, a well-known aqueous carrier for water-insoluble ingredients, is commonly applied in drug delivery systems. In this study, a feasible approach for solving the problem is that the targeted piceid was encapsulated into a liposomal formula as aqueous substrate to overcome its poor water-solubility. The encapsulation process was assisted by ultrasound, with investigation of lipid content, ultrasound power and ultrasound time, for controlling encapsulation efficiency (E.E%), absolute loading (A.L%) and particle size (PS). Moreover, both RSM and ANN methodologies were further applied to optimize the ultrasound-assisted encapsulation process. The data indicated that the most important effects on the encapsulation performance were found to be of lipid content followed by ultrasound time and ultrasound power. The maximum E.E% (75.82%) and A.L% (2.37%) were exhibited by ultrasound assistance with the parameters of 160mg lipid content, ultrasound time for 24min and ultrasound power of 90W. By methodological aspects of processing, the predicted E.E% and A.L% were respectively in good agreement with the experimental results for both RSM and ANN. Moreover, RMSE, R2 and AAD statistics were further used to compare the prediction abilities of RSM and ANN based on the validation data set. The results indicated that the prediction accuracy of ANN was better than that of RSM. In conclusion, ultrasound-assisted liposome encapsulation can be an efficient strategy for producing well-soluble/dispersed piceid, which could be further applied to promote human health by increased efficiency of biological absorption, and the process of ultrasound-mediated liposome encapsulation can be well established by a methodological approach using either RSM or ANN, but it is worth mentioning that the ANN model used here showed the superiority over RSM for predicting and optimizing encapsulation.
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Affiliation(s)
- Shang-Ming Huang
- Biotechnology Center, National Chung Hsing University, 250 Kuo-kuang Road, Taichung 40227, Taiwan
| | - Chia-Hung Kuo
- Department of Seafood Science, National Kaohsiung Marine University, 142 Haijhuan Road, Nanzih District, Kaohsiung 81143, Taiwan
| | - Chun-An Chen
- Department of Chemical Engineering, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 40227, Taiwan
| | - Yung-Chuan Liu
- Department of Chemical Engineering, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 40227, Taiwan.
| | - Chwen-Jen Shieh
- Biotechnology Center, National Chung Hsing University, 250 Kuo-kuang Road, Taichung 40227, Taiwan.
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37
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Belfatto A, Vidal Urbinati AM, Ciardo D, Franchi D, Cattani F, Lazzari R, Jereczek-Fossa BA, Orecchia R, Baroni G, Cerveri P. Comparison between model-predicted tumor oxygenation dynamics and vascular-/flow-related Doppler indices. Med Phys 2017; 44:2011-2019. [PMID: 28273332 DOI: 10.1002/mp.12192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/25/2017] [Accepted: 02/24/2017] [Indexed: 11/06/2022] Open
Abstract
PURPOSE Mathematical modeling is a powerful and flexible method to investigate complex phenomena. It discloses the possibility of reproducing expensive as well as invasive experiments in a safe environment with limited costs. This makes it suitable to mimic tumor evolution and response to radiotherapy although the reliability of the results remains an issue. Complexity reduction is therefore a critical aspect in order to be able to compare model outcomes to clinical data. Among the factors affecting treatment efficacy, tumor oxygenation is known to play a key role in radiotherapy response. In this work, we aim at relating the oxygenation dynamics, predicted by a macroscale model trained on tumor volumetric data of uterine cervical cancer patients, to vascularization and blood flux indices assessed on Ultrasound Doppler images. METHODS We propose a macroscale model of tumor evolution based on three dynamics, namely active portion, necrotic portion, and oxygenation. The model parameters were assessed on the volume size of seven cervical cancer patients administered with 28 fractions of intensity modulated radiation therapy (IMRT) (1.8 Gy/fraction). For each patient, five Doppler ultrasound tests were acquired before, during, and after the treatment. The lesion was manually contoured by an expert physician using 4D View® (General Electric Company - Fairfield, Connecticut, United States), which automatically provided the overall tumor volume size along with three vascularization and/or blood flow indices. Volume data only were fed to the model for training purpose, while the predicted oxygenation was compared a posteriori to the measured Doppler indices. RESULTS The model was able to fit the tumor volume evolution within 8% error (range: 3-8%). A strong correlation between the intrapatient longitudinal indices from Doppler measurements and oxygen predicted by the model (about 90% or above) was found in three cases. Two patients showed an average correlation value (50-70%) and the remaining two presented poor correlations. The latter patients were the ones featuring the smallest tumor reduction throughout the treatment, typical of hypoxic conditions. Moreover, the average oxygenation value predicted by the model was close to the average vascularization-flow index (average difference: 7%). CONCLUSIONS The results suggest that the modeled relation between tumor evolution and oxygen dynamics was reasonable enough to provide realistic oxygenation curves in five cases (correlation greater than 50%) out of seven. In case of nonresponsive tumors, the model failed in predicting the oxygenation trend while succeeded in reproducing the average oxygenation value according to the mean vascularization-flow index. Despite the need for deeper investigations, the outcomes of the present work support the hypothesis that a simple macroscale model of tumor response to radiotherapy is able to predict the tumor oxygenation. The possibility of an objective and quantitative validation on imaging data discloses the possibility to translate them as decision support tools in clinical practice and to move a step forward in the treatment personalization.
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Affiliation(s)
- Antonella Belfatto
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano University, Piazza Leonardo da Vinci, 32 - 20133, Milan, Italy
| | - Ailyn M Vidal Urbinati
- Preventive Gynecology Unit, Division of Gynecology, European Institute of Oncology, Via Giuseppe Ripamonti, 435 - 20141, Milan, Italy
| | - Delia Ciardo
- Department of Radiation Oncology, European Institute of Oncology, Via Giuseppe Ripamonti, 435 - 20141, Milan, Italy
| | - Dorella Franchi
- Preventive Gynecology Unit, Division of Gynecology, European Institute of Oncology, Via Giuseppe Ripamonti, 435 - 20141, Milan, Italy
| | - Federica Cattani
- Unit of Medical Physics, European Institute of Oncology, Via Giuseppe Ripamonti, 435 - 20141, Milan, Italy
| | - Roberta Lazzari
- Department of Radiation Oncology, European Institute of Oncology, Via Giuseppe Ripamonti, 435 - 20141, Milan, Italy
| | - Barbara A Jereczek-Fossa
- Department of Radiation Oncology, European Institute of Oncology, Via Giuseppe Ripamonti, 435 - 20141, Milan, Italy.,Department of Oncology and Hemato-oncology, University of Milan, Via Festa del Perdono, 7 - 20122, Milan, Italy
| | - Roberto Orecchia
- Department of Oncology and Hemato-oncology, University of Milan, Via Festa del Perdono, 7 - 20122, Milan, Italy.,Department of Medical Imaging and Radiation Sciences, European Institute of Oncology, Via Giuseppe Ripamonti, 435 - 20141, Milan, Italy
| | - Guido Baroni
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano University, Piazza Leonardo da Vinci, 32 - 20133, Milan, Italy
| | - Pietro Cerveri
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano University, Piazza Leonardo da Vinci, 32 - 20133, Milan, Italy
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Arnesen MR, Hellebust TP, Malinen E. Impact of dose escalation and adaptive radiotherapy for cervical cancers on tumour shrinkage—a modelling study. Phys Med Biol 2017; 62:N107-N119. [DOI: 10.1088/1361-6560/aa5de2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sakurai Y, Hada T, Harashima H. Scalable preparation of poly(ethylene glycol)-grafted siRNA-loaded lipid nanoparticles using a commercially available fluidic device and tangential flow filtration. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:1086-1096. [PMID: 28157422 DOI: 10.1080/09205063.2017.1291297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
While a number of siRNA delivery systems have been developed, the methods used in their preparation are not suitable for large-scale production. We herein report on methodology for the large-scale preparation of liposomal siRNA using a fluidic device and tangential flow filtration (TFF). A number of studies have appeared on the use of fluidic devices for preparing and purifying liposomes, but no systematic information regarding appropriate membrane type of commercially available apparatus is available. The findings reported herein indicate that, under optimized conditions, a microfluidic device and TFF can be used to produce siRNA lipid nanoparticles with the same characteristics as traditional ones'. The in vivo silencing efficiency of these lipid nanoparticles in the liver was comparable to laboratory-produced nanoparticles. In addition, con-focal laser scanning microscopy analyses revealed that they accumulated in the liver accumulation at the same levels as particles produced by batch-type and continuous-type procedures. This methodology has the potential to contribute to the advancement of this process from basic research to clinical studies of liposomal DDS.
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Affiliation(s)
- Yu Sakurai
- a Faculty of Pharmaceutical Sciences , Hokkaido University , Sapporo , Japan
| | - Tomoya Hada
- a Faculty of Pharmaceutical Sciences , Hokkaido University , Sapporo , Japan
| | - Hideyoshi Harashima
- a Faculty of Pharmaceutical Sciences , Hokkaido University , Sapporo , Japan
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Chen W, Bai P, Pan J, Xu Y, Chen K. Changes in Tumor Volumes and Spatial Locations Relative to Normal Tissues During Cervical Cancer Radiotherapy Assessed by Cone Beam Computed Tomography. Technol Cancer Res Treat 2017; 16:246-252. [PMID: 28052737 PMCID: PMC5616038 DOI: 10.1177/1533034616685942] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Purpose: To assess changes in the volumes and spatial locations of tumors and surrounding organs by cone beam computed tomography during treatment for cervical cancer. Materials and Methods: Sixteen patients with cervical cancer had intensity-modulated radiotherapy and off-line cone beam computed tomography during chemotherapy and/or radiation therapy. The gross tumor volume (GTV-T) and clinical target volumes (CTVs) were contoured on the planning computed tomography and weekly cone beam computed tomography image, and changes in volumes and spatial locations were evaluated using the volume difference method and Dice similarity coefficients. Results: The GTV-T was 79.62 cm3 at prior treatment (0f) and then 20.86 cm3 at the end of external-beam chemoradiation. The clinical target volume changed slightly from 672.59 cm3 to 608.26 cm3, and the uterine volume (CTV-T) changed slightly from 83.72 cm3 to 80.23 cm3. There were significant differences in GTV-T and CTV-T among the different groups (P < .001), but the clinical target volume was not significantly different in volume (P > .05). The mean percent volume changes ranged from 23.05% to 70.85% for GTV-T, 4.71% to 6.78% for CTV-T, and 5.84% to 9.59% for clinical target volume, and the groups were significantly different (P < .05). The Dice similarity coefficient of GTV-T decreased during the course of radiation therapy (P < .001). In addition, there were significant differences in GTV-T among different groups (P < .001), and changes in GTV-T correlated with the radiotherapy (P < .001). There was a negative correlation between volume change rate (DV) and Dice similarity coefficient in the GTV-T and organs at risk (r < 0; P < .05). Conclusion: The volume, volume change rate, and Dice similarity coefficient of GTV-T were all correlated with increase in radiation treatment. Significant variations in tumor regression and spatial location occurred during radiotherapy for cervical cancer. Adaptive radiotherapy approaches are needed to improve the treatment accuracy for cervical cancer.
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Affiliation(s)
- Wenjuan Chen
- 1 Department of Radiation Oncology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Penggang Bai
- 1 Department of Radiation Oncology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Jianji Pan
- 1 Department of Radiation Oncology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Yuanji Xu
- 1 Department of Radiation Oncology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Kaiqiang Chen
- 1 Department of Radiation Oncology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
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Lu M, Ozcelik A, Grigsby CL, Zhao Y, Guo F, Leong KW, Huang TJ. Microfluidic Hydrodynamic Focusing for Synthesis of Nanomaterials. NANO TODAY 2016; 11:778-792. [PMID: 30337950 PMCID: PMC6191180 DOI: 10.1016/j.nantod.2016.10.006] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Microfluidics expands the synthetic space such as heat transfer, mass transport, and reagent consumption to conditions not easily achievable in conventional batch processes. Hydrodynamic focusing in particular enables the generation and study of complex engineered nanostructures and new materials systems. In this review, we present an overview of recent progress in the synthesis of nanostructures and microfibers using microfluidic hydrodynamic focusing techniques. Emphasis is placed on distinct designs of flow focusing methods and their associated mechanisms, as well as their applications in material synthesis, determination of reaction kinetics, and study of synthetic mechanisms.
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Affiliation(s)
- Mengqian Lu
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Adem Ozcelik
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Christopher L Grigsby
- Department of Biomedical Engineering, Duke University, Durham, North Carolina, 27708, USA
- Departments of Biomedical Engineering, and Systems Biology, Columbia University, New York, New York, 10027, USA
| | - Yanhui Zhao
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Feng Guo
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Kam W Leong
- Department of Biomedical Engineering, Duke University, Durham, North Carolina, 27708, USA
- Departments of Biomedical Engineering, and Systems Biology, Columbia University, New York, New York, 10027, USA
| | - Tony Jun Huang
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA, 16802, USA
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Tariq I, Chen T, Kirkby NF, Jena R. Modelling and Bayesian adaptive prediction of individual patients' tumour volume change during radiotherapy. Phys Med Biol 2016; 61:2145-61. [PMID: 26907478 DOI: 10.1088/0031-9155/61/5/2145] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The aim of this study is to develop a mathematical modelling method that can predict individual patients’ response to radiotherapy, in terms of tumour volume change during the treatment. The main concept is to start from a population-average model, which is subsequently updated from an individual’s tumour volume measurement. The model becomes increasingly personalized and so too does the prediction it produces. This idea of adaptive prediction was realised by using a Bayesian approach for updating the model parameters. The feasibility of the developed method was demonstrated on the data from 25 non-small cell lung cancer patients treated with helical tomotherapy, during which tumour volume was measured from daily imaging as part of the image-guided radiotherapy. The method could provide useful information for adaptive treatment planning and dose scheduling based on the patient’s personalised response.
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Maingon P. Argumentaire clinique pour la radiothérapie guidée par imagerie par résonance magnétique. Cancer Radiother 2016; 20:558-63. [DOI: 10.1016/j.canrad.2016.07.070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 07/12/2016] [Accepted: 07/13/2016] [Indexed: 11/24/2022]
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Garg S, Heuck G, Ip S, Ramsay E. Microfluidics: a transformational tool for nanomedicine development and production. J Drug Target 2016; 24:821-835. [DOI: 10.1080/1061186x.2016.1198354] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Shyam Garg
- Precision NanoSystems Inc, Vancouver, BC, Canada
| | - Gesine Heuck
- Precision NanoSystems Inc, Vancouver, BC, Canada
| | - Shell Ip
- Precision NanoSystems Inc, Vancouver, BC, Canada
| | - Euan Ramsay
- Precision NanoSystems Inc, Vancouver, BC, Canada
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Multiparametric [18F]Fluorodeoxyglucose/ [18F]Fluoromisonidazole Positron Emission Tomography/ Magnetic Resonance Imaging of Locally Advanced Cervical Cancer for the Non-Invasive Detection of Tumor Heterogeneity: A Pilot Study. PLoS One 2016; 11:e0155333. [PMID: 27167829 PMCID: PMC4864307 DOI: 10.1371/journal.pone.0155333] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 04/27/2016] [Indexed: 01/09/2023] Open
Abstract
Objectives To investigate fused multiparametric positron emission tomography/magnetic resonance imaging (MP PET/MRI) at 3T in patients with locally advanced cervical cancer, using high-resolution T2-weighted, contrast-enhanced MRI (CE-MRI), diffusion-weighted imaging (DWI), and the radiotracers [18F]fluorodeoxyglucose ([18F]FDG) and [18F]fluoromisonidazol ([18F]FMISO) for the non-invasive detection of tumor heterogeneity for an improved planning of chemo-radiation therapy (CRT). Materials and Methods Sixteen patients with locally advanced cervix were enrolled in this IRB approved and were examined with fused MP [18F]FDG/ [18F]FMISO PET/MRI and in eleven patients complete data sets were acquired. MP PET/MRI was assessed for tumor volume, enhancement (EH)-kinetics, diffusivity, and [18F]FDG/ [18F]FMISO-avidity. Descriptive statistics and voxel-by-voxel analysis of MRI and PET parameters were performed. Correlations were assessed using multiple correlation analysis. Results All tumors displayed imaging parameters concordant with cervix cancer, i.e. type II/III EH-kinetics, restricted diffusivity (median ADC 0.80x10-3mm2/sec), [18F]FDG- (median SUVmax16.2) and [18F]FMISO-avidity (median SUVmax3.1). In all patients, [18F]FMISO PET identified the hypoxic tumor subvolume, which was independent of tumor volume. A voxel-by-voxel analysis revealed only weak correlations between the MRI and PET parameters (0.05–0.22), indicating that each individual parameter yields independent information and the presence of tumor heterogeneity. Conclusion MP [18F]FDG/ [18F]FMISO PET/MRI in patients with cervical cancer facilitates the acquisition of independent predictive and prognostic imaging parameters. MP [18F]FDG/ [18F]FMISO PET/MRI enables insights into tumor biology on multiple levels and provides information on tumor heterogeneity, which has the potential to improve the planning of CRT.
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Belfatto A, White DA, Mason RP, Zhang Z, Stojadinovic S, Baroni G, Cerveri P. Tumor radio-sensitivity assessment by means of volume data and magnetic resonance indices measured on prostate tumor bearing rats. Med Phys 2016; 43:1275-84. [PMID: 26936712 PMCID: PMC5148178 DOI: 10.1118/1.4941746] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 12/17/2015] [Accepted: 01/29/2016] [Indexed: 12/19/2022] Open
Abstract
PURPOSE Radiation therapy is one of the most common treatments in the fight against prostate cancer, since it is used to control the tumor (early stages), to slow its progression, and even to control pain (metastasis). Although many factors (e.g., tumor oxygenation) are known to influence treatment efficacy, radiotherapy doses and fractionation schedules are often prescribed according to the principle "one-fits-all," with little personalization. Therefore, the authors aim at predicting the outcome of radiation therapy a priori starting from morphologic and functional information to move a step forward in the treatment customization. METHODS The authors propose a two-step protocol to predict the effects of radiation therapy on individual basis. First, one macroscopic mathematical model of tumor evolution was trained on tumor volume progression, measured by caliper, of eighteen Dunning R3327-AT1 bearing rats. Nine rats inhaled 100% O2 during irradiation (oxy), while the others were allowed to breathe air. Second, a supervised learning of the weight and biases of two feedforward neural networks was performed to predict the radio-sensitivity (target) from the initial volume and oxygenation-related information (inputs) for each rat group (air and oxygen breathing). To this purpose, four MRI-based indices related to blood and tissue oxygenation were computed, namely, the variation of signal intensity ΔSI in interleaved blood oxygen level dependent and tissue oxygen level dependent (IBT) sequences as well as changes in longitudinal ΔR1 and transverse ΔR2(*) relaxation rates. RESULTS An inverse correlation of the radio-sensitivity parameter, assessed by the model, was found with respect the ΔR2(*) (-0.65) for the oxy group. A further subdivision according to positive and negative values of ΔR2(*) showed a larger average radio-sensitivity for the oxy rats with ΔR2(*)<0 and a significant difference in the two distributions (p < 0.05). Finally, a leave-one-out procedure yielded a radio-sensitivity error lower than 20% in both neural networks. CONCLUSIONS While preliminary, these specific results suggest that subjects affected by the same pathology can benefit differently from the same irradiation modalities and support the usefulness of IBT in discriminating between different responses.
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Affiliation(s)
- Antonella Belfatto
- Department of Electronics, Information and Bioengineering, Politecnico di Milano University, Milan 20133, Italy
| | - Derek A White
- Department of Radiology, The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Ralph P Mason
- Department of Radiology, The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Zhang Zhang
- Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Strahinja Stojadinovic
- Department of Radiation Oncology, The University of Texas Southwestern Medical Center, Dallas, Texas 75390
| | - Guido Baroni
- Department of Electronics, Information and Bioengineering, Politecnico di Milano University, Milan 20133, Italy
| | - Pietro Cerveri
- Department of Electronics, Information and Bioengineering, Politecnico di Milano University, Milan 20133, Italy
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Watanabe Y, Dahlman EL, Leder KZ, Hui SK. A mathematical model of tumor growth and its response to single irradiation. Theor Biol Med Model 2016; 13:6. [PMID: 26921069 PMCID: PMC4769590 DOI: 10.1186/s12976-016-0032-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 02/19/2016] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Mathematical modeling of biological processes is widely used to enhance quantitative understanding of bio-medical phenomena. This quantitative knowledge can be applied in both clinical and experimental settings. Recently, many investigators began studying mathematical models of tumor response to radiation therapy. We developed a simple mathematical model to simulate the growth of tumor volume and its response to a single fraction of high dose irradiation. The modelling study may provide clinicians important insights on radiation therapy strategies through identification of biological factors significantly influencing the treatment effectiveness. METHODS We made several key assumptions of the model. Tumor volume is composed of proliferating (or dividing) cancer cells and non-dividing (or dead) cells. Tumor growth rate (or tumor volume doubling time) is proportional to the ratio of the volumes of tumor vasculature and the tumor. The vascular volume grows slower than the tumor by introducing the vascular growth retardation factor, θ. Upon irradiation, the proliferating cells gradually die over a fixed time period after irradiation. Dead cells are cleared away with cell clearance time. The model was applied to simulate pre-treatment growth and post-treatment radiation response of rat rhabdomyosarcoma tumors and metastatic brain tumors of five patients who were treated with Gamma Knife stereotactic radiosurgery (GKSRS). RESULTS By selecting appropriate model parameters, we showed the temporal variation of the tumors for both the rat experiment and the clinical GKSRS cases could be easily replicated by the simple model. Additionally, the application of our model to the GKSRS cases showed that the α-value, which is an indicator of radiation sensitivity in the LQ model, and the value of θ could be predictors of the post-treatment volume change. CONCLUSIONS The proposed model was successful in representing both the animal experimental data and the clinically observed tumor volume changes. We showed that the model can be used to find the potential biological parameters, which may be able to predict the treatment outcome. However, there is a large statistical uncertainty of the result due to the small sample size. Therefore, a future clinical study with a larger number of patients is needed to confirm the finding.
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Affiliation(s)
- Yoichi Watanabe
- Department of Radiation Oncology, University of Minnesota, 420 Delaware St.SE, MMC-494, Minneapolis, MN, 55455, USA.
| | - Erik L Dahlman
- Department of Radiation Oncology, University of Minnesota, 420 Delaware St.SE, MMC-494, Minneapolis, MN, 55455, USA.
| | - Kevin Z Leder
- Industrial and Systems Engineering, University of Minnesota, 111 Church Street SE, Minneapolis, MN, 55455, USA.
| | - Susanta K Hui
- Department of Radiation Oncology, University of Minnesota, 420 Delaware St.SE, MMC-494, Minneapolis, MN, 55455, USA.
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Huang X, Zhang M, Wang X, Lee LJ, Lee RJ. Preparation of Targeted Anionic Lipid-Coated Polyplexes for MicroRNA Delivery. Methods Mol Biol 2016; 1445:201-13. [PMID: 27436321 DOI: 10.1007/978-1-4939-3718-9_13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
As nonviral nucleic acid delivery vehicles, lipid nanoparticles (LNPs) have been widely used. Here we describe the synthesis and evaluation of LNPs based on targeted anionic lipid-coated polyplexs for therapeutic delivery of microRNA (miRNA) mimics. These LNPs are particularly suited for therapeutic delivery of oligonucleotide agents to leukemia cells.
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Affiliation(s)
- Xiaomeng Huang
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, 500 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Mengzi Zhang
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, 500 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Xinmei Wang
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, 500 W. 12th Avenue, Columbus, OH, 43210, USA
| | - L James Lee
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, 500 W. 12th Avenue, Columbus, OH, 43210, USA
| | - Robert J Lee
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, 500 W. 12th Avenue, Columbus, OH, 43210, USA.
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Gunther S, Ostheimer C, Stangl S, Specht HM, Mozes P, Jesinghaus M, Vordermark D, Combs SE, Peltz F, Jung MP, Multhoff G. Correlation of Hsp70 Serum Levels with Gross Tumor Volume and Composition of Lymphocyte Subpopulations in Patients with Squamous Cell and Adeno Non-Small Cell Lung Cancer. Front Immunol 2015; 6:556. [PMID: 26579130 PMCID: PMC4629690 DOI: 10.3389/fimmu.2015.00556] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 10/17/2015] [Indexed: 12/16/2022] Open
Abstract
Heat-shock protein 70 (Hsp70) is frequently found on the plasma membrane of a large number of malignant tumors including non-small cell lung cancer (NSCLC) and gets released into the blood circulation in lipid vesicles. On the one hand, a membrane (m)Hsp70-positive phenotype correlates with a high aggressiveness of the tumor; on the other hand, mHsp70 serves as a target for natural killer (NK) cells that had been pre-stimulated with Hsp70-peptide TKD plus low-dose interleukin-2 (TKD/IL-2). Following activation, NK cells show an up-regulated expression of activatory C-type lectin receptors, such as CD94/NKG2C, NKG2D, and natural cytotoxicity receptors (NCRs; NKp44, NKp46, and NKp30) and thereby gain the capacity to kill mHsp70-positive tumor cells. With respect to these results, the efficacy of ex vivo TKD/IL-2 stimulated, autologous NK cells is currently tested in a proof-of-concept phase II clinical trial in patients with squamous cell NSCLC after radiochemotherapy (RCT) at the TUM. Inclusion criteria are histological proven, non-resectable NSCLC in stage IIIA/IIIB, clinical responses to RCT and a mHsp70-positive tumor phenotype. The mHsp70 status is determined in the serum of patients using the lipHsp70 ELISA test, which enables the quantification of liposomal and free Hsp70. Squamous cell and adeno NSCLC patients had significantly higher serum Hsp70 levels than healthy controls. A significant correlation of serum Hsp70 levels with the gross tumor volume was shown for adeno and squamous cell NSCLC. However, significantly elevated ratios of activated CD69(+)/CD94(+) NK cells that are associated with low serum Hsp70 levels were observed only in patients with squamous cell lung cancer. These data might provide a first hint that squamous cell NSCLC is more immunogenic than adeno NSCLC.
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Affiliation(s)
- Sophie Gunther
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München (TUM) , München , Germany
| | - Christian Ostheimer
- Department of Radiation Oncology, Martin Luther University Halle-Wittenberg , Halle (Saale) , Germany
| | - Stefan Stangl
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München (TUM) , München , Germany
| | - Hanno M Specht
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München (TUM) , München , Germany
| | - Petra Mozes
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München (TUM) , München , Germany
| | - Moritz Jesinghaus
- Department of Pathology, Klinikum rechts der Isar, Technische Universität München (TUM) , München , Germany
| | - Dirk Vordermark
- Department of Radiation Oncology, Martin Luther University Halle-Wittenberg , Halle (Saale) , Germany
| | - Stephanie E Combs
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München (TUM) , München , Germany ; Department of Innovative Radiotherapy (iRT), Helmholtz Zentrum München , Oberschleißheim , Germany ; Department of Radiation Sciences (DRS), Helmholtz Zentrum München , Oberschleißheim , Germany
| | - Friedhelm Peltz
- Pulmonary Division, 1 Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München (TUM) , München , Germany
| | - Max P Jung
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München (TUM) , München , Germany
| | - Gabriele Multhoff
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München (TUM) , München , Germany ; Department of Innovative Radiotherapy (iRT), Helmholtz Zentrum München , Oberschleißheim , Germany ; Department of Radiation Sciences (DRS), Helmholtz Zentrum München , Oberschleißheim , Germany
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Zhong H, Chetty I. A note on modeling of tumor regression for estimation of radiobiological parameters. Med Phys 2015; 41:081702. [PMID: 25086512 DOI: 10.1118/1.4884019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
PURPOSE Accurate calculation of radiobiological parameters is crucial to predicting radiation treatment response. Modeling differences may have a significant impact on derived parameters. In this study, the authors have integrated two existing models with kinetic differential equations to formulate a new tumor regression model for estimation of radiobiological parameters for individual patients. METHODS A system of differential equations that characterizes the birth-and-death process of tumor cells in radiation treatment was analytically solved. The solution of this system was used to construct an iterative model (Z-model). The model consists of three parameters: tumor doubling time Td, half-life of dead cells Tr, and cell survival fraction SFD under dose D. The Jacobian determinant of this model was proposed as a constraint to optimize the three parameters for six head and neck cancer patients. The derived parameters were compared with those generated from the two existing models: Chvetsov's model (C-model) and Lim's model (L-model). The C-model and L-model were optimized with the parameter Td fixed. RESULTS With the Jacobian-constrained Z-model, the mean of the optimized cell survival fractions is 0.43 ± 0.08, and the half-life of dead cells averaged over the six patients is 17.5 ± 3.2 days. The parameters Tr and SFD optimized with the Z-model differ by 1.2% and 20.3% from those optimized with the Td-fixed C-model, and by 32.1% and 112.3% from those optimized with the Td-fixed L-model, respectively. CONCLUSIONS The Z-model was analytically constructed from the differential equations of cell populations that describe changes in the number of different tumor cells during the course of radiation treatment. The Jacobian constraints were proposed to optimize the three radiobiological parameters. The generated model and its optimization method may help develop high-quality treatment regimens for individual patients.
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Affiliation(s)
- Hualiang Zhong
- Department of Radiation Oncology, Henry Ford Health System, Detroit, Michigan 48202
| | - Indrin Chetty
- Department of Radiation Oncology, Henry Ford Health System, Detroit, Michigan 48202
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