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Lee R, Ku M, Je NK. Adherence to antiemetic guidelines in solid cancer patients receiving highly emetogenic chemotherapy in Korea. Support Care Cancer 2024; 32:190. [PMID: 38400861 DOI: 10.1007/s00520-024-08367-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 02/11/2024] [Indexed: 02/26/2024]
Abstract
BACKGROUND Highly emetogenic chemotherapy (HEC) is known to induce nausea and vomiting (CINV) in approximately 90% of cancer patients undergoing this regimen unless proper prophylactic antiemetics are administered. This study aimed to analyze the use of a three-drug prophylactic antiemetic regimen during the first cycle of chemotherapy and assess the compliance rate with the National Comprehensive Cancer Network (NCCN) guidelines. METHODS This retrospective study utilized data from the National Inpatient Sample database from 2016 to 2020 provided by the Health Insurance Review and Assessment Service. The claims data encompassed 10 to 13% of inpatients admitted at least once each year. Patients with solid cancers treated with two HEC regimens, namely anthracycline + cyclophosphamide (AC) and cisplatin-based regimens, were selected as the study population. We evaluated the use of a three-drug prophylactic antiemetic regimen, including a neurokinin-1 receptor antagonist, a 5-hydroxytryptamine-3 receptor antagonist, and dexamethasone and compliance with the NCCN guidelines. Multiple logistic regression was conducted to estimate the influence of variables on guideline adherence. RESULTS A total of 3119 patients were included in the analysis. The overall compliance rate with the NCCN guidelines for prophylactic antiemetics was 74.3%, with higher rates observed in the AC group (87.9%) and lower rates in the cisplatin group (60.4%). The AC group had a 6.37 times higher likelihood of receiving guideline-adherent antiemetics than the cisplatin group. Further analysis revealed that, compared to 2016, the probability of complying with the guidelines in 2019 and 2020 was 0.72 times and 0.76 times lower, respectively. CONCLUSION This study showed that a considerable proportion of HEC-treated patients received guideline-adherent antiemetic therapies. However, given the variations in adherence rates between different chemotherapy regimens (AC vs. cisplatin), efforts to improve adherence and optimize antiemetic treatment remain essential for providing the best possible care for patients experiencing CINV.
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Affiliation(s)
- Ryugyoung Lee
- College of Pharmacy, Pusan National University, Busan, 46241, Republic of Korea
- Department of Pharmacy, Dongnam Institute of Radiological & Medical Sciences, Busan, Republic of Korea
| | - Minhee Ku
- College of Pharmacy, Pusan National University, Busan, 46241, Republic of Korea
- Department of Pharmacy, Dongnam Institute of Radiological & Medical Sciences, Busan, Republic of Korea
| | - Nam Kyung Je
- College of Pharmacy, Pusan National University, Busan, 46241, Republic of Korea.
- Research Institute for Drug Development, Pusan National University, Busan, 46241, Republic of Korea.
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Ku M, Je NK. Exploring the prescribing trends and factors affecting initial anti-parkinsonian drug selection in Korea: A nationwide population-based cohort study. J Clin Neurosci 2023; 116:60-66. [PMID: 37633186 DOI: 10.1016/j.jocn.2023.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 07/06/2023] [Accepted: 08/16/2023] [Indexed: 08/28/2023]
Abstract
BACKGROUND Parkinson's disease (PD) is a common neurodegenerative disorder typically treated with dopamine replacement therapy and dopamine agonists (DAs) to alleviate symptoms and minimize dyskinesia. Optimal treatment strategies for patients newly diagnosed with PD have been a topic of debate for many years. METHODS We conducted a 10-year descriptive study of drug prescription trends and factors affecting prescription choices for newly diagnosed drug-naïve PD patients using data from the National Health Insurance program in Korea. To identify statistically significant differences in yearly trends, we employed the Cochran-Armitage trend test. Additionally, we utilized multiple logistic regression analysis to investigate the factors associated with the selection of levodopa and DAs as initial anti-parkinsonian drugs. RESULTS A total of 99,118 patients with PD who were prescribed levodopa or DAs alone as initial anti-parkinsonian drugs between 2011 and 2020 were eligible for inclusion in the analysis. The prescription rate of DAs increased until 2012, and then steadily decreased annually. The likelihood of levodopa prescription increased with age and at higher-level hospitals. In terms of comorbidities, patients with Alzheimer's disease and cerebrovascular diseases were more likely to be prescribed levodopa than those with peptic ulcer disease and dyslipidemia. CONCLUSION The decline in levodopa prescriptions was reversed in 2012, and the prescription rate has continued to increase until recently. The odds ratio of levodopa prescription increased in elderly patients with Alzheimer's disease and decreased in patients with Medical aid insurance and peptic ulcer disease.
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Affiliation(s)
- Minhee Ku
- College of Pharmacy, Pusan National University, Busan, Republic of Korea; Department of Pharmacy, Dongnam Institute of Radiological & Medical Sciences, Busan, Republic of Korea
| | - Nam Kyung Je
- College of Pharmacy, Pusan National University, Busan, Republic of Korea.
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Jung J, Ku M, Jeong S, Yoon N, Park JH, Youn HS, Yang J, Seo S. Antioxidative Impact of Phenolics-Loaded Nanocarriers on Cytoskeletal Network Remodeling of Invasive Cancer Cells. ACS Appl Mater Interfaces 2023. [PMID: 37438323 PMCID: PMC10375430 DOI: 10.1021/acsami.3c04693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Natural phenolic compounds have antioxidant properties owing to their free radical-scavenging capability. The combined effect of a mixture of phenolic compounds has been studied; however, the detailed investigation for finding a correlation between single phenolic molecules and antioxidant activity has not been explored. Herein, we revealed that the number of phenolic hydroxyl groups in phenolics played a central role in their antioxidant capacity. Based on the finding, tannic acid showed the most effective antioxidant potential, e.g., 76% in tannic acid versus 22% in vitamin C as a standard antioxidant component. Because cancer progression is closely related to oxidative processes at the cellular level, we further applied the surface treatment of tannic acid drug-delivery nanocarriers. Tannic acid-loaded nanocarriers reduced reactive oxygen species of cancer cells as much as 41% of vehicle treatment and remodeled cytoskeletal network. By a gelatin degradation study, TA-loaded nanocarrier-treated cells induced 44.6% reduction of degraded area than vehicle-treated cells, implying a potential of blocking invasiveness of cancer cells.
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Affiliation(s)
- Jaewon Jung
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Minhee Ku
- Department of Radiology, College of Medicine, Seoul 03722, Republic of Korea
- Systems Molecular Radiology, Yonsei University, Seoul 03722, Republic of Korea
- Convergence Research Center for Systems Molecular Radiological Science, Yonsei University, Seoul 03722, Republic of Korea
| | - Suhui Jeong
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Nara Yoon
- Department of Radiology, College of Medicine, Seoul 03722, Republic of Korea
- Systems Molecular Radiology, Yonsei University, Seoul 03722, Republic of Korea
- Convergence Research Center for Systems Molecular Radiological Science, Yonsei University, Seoul 03722, Republic of Korea
| | - Jae Hyun Park
- Young Chemical Co. Ltd., 80-93, Golden Root-ro, Juchon-myeon, Gimhae 50969, Republic of Korea
| | - Han Sung Youn
- Young Chemical Co. Ltd., 80-93, Golden Root-ro, Juchon-myeon, Gimhae 50969, Republic of Korea
| | - Jaemoon Yang
- Department of Radiology, College of Medicine, Seoul 03722, Republic of Korea
- Systems Molecular Radiology, Yonsei University, Seoul 03722, Republic of Korea
- Convergence Research Center for Systems Molecular Radiological Science, Yonsei University, Seoul 03722, Republic of Korea
| | - Sungbaek Seo
- Department of Biomaterials Science (BK21 FOUR Program), College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang 50463, Republic of Korea
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Ku M, Yang J. Intracellular lipophilic network transformation induced by protease-specific endocytosis of fluorescent Au nanoclusters. Nano Converg 2023; 10:26. [PMID: 37296273 DOI: 10.1186/s40580-023-00376-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023]
Abstract
The understanding of the endocytosis process of internalized nanomedicines through membrane biomarker is essential for the development of molecular-specific nanomedicines. In various recent reports, the metalloproteases have been identified as important markers during the metastasis of cancer cells. In particular, MT1-MMP has provoked concern due to its protease activity in the degradation of the extracellular matrix adjacent to tumors. Thus, in the current work, we have applied fluorescent Au nanoclusters which present strong resistance to chemical quenching to the investigation of MT1-MMP-mediated endocytosis. We synthesized protein-based Au nanocluster (PAuNC) and MT1-MMP-specific peptide was conjugated with PAuNC (pPAuNC) for monitoring protease-mediated endocytosis. The fluorescence capacity of pPAuNC was investigated and MT1-MMP-mediated intracellular uptake of pPAuNC was subsequently confirmed by a co-localization analysis using confocal microscopy and molecular competition test. Furthermore, we confirmed a change in the intracellular lipophilic network after an endocytosis event of pPAuNC. The identical lipophilic network change did not occur with the endocytosis of bare PAuNC. By classification of the branched network between the lipophilic organelles at the nanoscale, the image-based analysis of cell organelle networking allowed the evaluation of nanoparticle internalization and impaired cellular components after intracellular accumulation at a single-cell level. Our analyses suggest a methodology to achieve a better understanding of the mechanism by which nanoparticles enter cells.
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Affiliation(s)
- Minhee Ku
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
- Systems Molecular Radiology at Yonsei (SysMolRaY), Seoul, 03722, Republic of Korea
- Imaging of MechanoBiology (iMechBio) at Yonsei, Seoul, 03722, Republic of Korea
| | - Jaemoon Yang
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea.
- Systems Molecular Radiology at Yonsei (SysMolRaY), Seoul, 03722, Republic of Korea.
- Imaging of MechanoBiology (iMechBio) at Yonsei, Seoul, 03722, Republic of Korea.
- Convergence Research Center for Systems Molecular Radiological Science, Yonsei University, Seoul, 03722, Republic of Korea.
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Song SH, Han D, Park K, Um JE, Kim S, Ku M, Yang J, Yoo TH, Yook JI, Kim NH, Kim HS. Bone morphogenetic protein-7 attenuates pancreatic damage under diabetic conditions and prevents progression to diabetic nephropathy via inhibition of ferroptosis. Front Endocrinol (Lausanne) 2023; 14:1172199. [PMID: 37293506 PMCID: PMC10244744 DOI: 10.3389/fendo.2023.1172199] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 05/04/2023] [Indexed: 06/10/2023] Open
Abstract
Background Approximately 30% of diabetic patients develop diabetic nephropathy, a representative microvascular complication. Although the etiological mechanism has not yet been fully elucidated, renal tubular damage by hyperglycemia-induced expression of transforming growth factor-β (TGF-β) is known to be involved. Recently, a new type of cell death by iron metabolism called ferroptosis was reported to be involved in kidney damage in animal models of diabetic nephropathy, which could be induced by TGF-β. Bone morphogenetic protein-7 (BMP7) is a well-known antagonist of TGF-β inhibiting TGF-β-induced fibrosis in many organs. Further, BMP7 has been reported to play a role in the regeneration of pancreatic beta cells in diabetic animal models. Methods We used protein transduction domain (PTD)-fused BMP7 in micelles (mPTD-BMP7) for long-lasting in vivo effects and effective in vitro transduction and secretion. Results mPTD-BMP7 successfully accelerated the regeneration of diabetic pancreas and impeded progression to diabetic nephropathy. With the administration of mPTD-BMP7, clinical parameters and representative markers of pancreatic damage were alleviated in a mouse model of streptozotocin-induced diabetes. It not only inhibited the downstream genes of TGF-β but also attenuated ferroptosis in the kidney of the diabetic mouse and TGF-β-stimulated rat kidney tubular cells. Conclusion BMP7 impedes the progression of diabetic nephropathy by inhibiting the canonical TGF-β pathway, attenuating ferroptosis, and helping regenerate diabetic pancreas.
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Affiliation(s)
- Sang Hyun Song
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Dawool Han
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Republic of Korea
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Kyeonghui Park
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Jo Eun Um
- R&D Center, MET Life Science, Seoul, Republic of Korea
| | - Seonghun Kim
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea
- R&D Center, MET Life Science, Seoul, Republic of Korea
| | - Minhee Ku
- Department of Radiology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Convergence Research Center for Systems Molecular Radiological Science, Yonsei University, Seoul, Republic of Korea
| | - Jaemoon Yang
- Department of Radiology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Convergence Research Center for Systems Molecular Radiological Science, Yonsei University, Seoul, Republic of Korea
| | - Tae-Hyun Yoo
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jong In Yook
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Republic of Korea
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Nam Hee Kim
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Republic of Korea
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Hyun Sil Kim
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Republic of Korea
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Republic of Korea
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Ku M, Je NK. Prescription changes in patients with gastrointestinal disorders after withdrawal of ranitidine: a nationwide population-based cohort study. Curr Med Res Opin 2023; 39:197-203. [PMID: 36519289 DOI: 10.1080/03007995.2022.2159147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Ranitidine products contain unacceptable levels of N-nitrosodimethylamine. This study aimed to investigate changes in the treatment regimen and their influencing factors after the ranitidine recall. METHODS This retrospective study used data from nationwide Korean claims from 2019. Patients with gastrointestinal disorders treated with ranitidine for at least a month on 25 September 2019, were selected for this study. Other histamine-2 receptor antagonists (H2RAs), proton pump inhibitors (PPIs), potassium-competitive acid blockers (PCABs), and prostaglandin E1 analogs were administered as alternatives to ranitidine. Kaplan-Meier survival and Cox proportional hazards regression analyses were performed to gauge the time until switching to alternative drugs and assess the influencing factors. RESULTS In total, 7502 patients were included in this study, among which 5164 (68.8%) switched from ranitidine to an alternative drug. The most prescribed alternative drugs were H2RAs, followed by PPIs, PCABs, and prostaglandin E1 analogs. Increasing age; Medical Aid insurance (MedAid); and a history of hypertension, diabetes mellitus, asthma, and osteoarthritis were associated with a higher probability of switching treatments. Patients with concomitant gastroesophageal reflux disease and peptic ulcers were more likely to switch to alternative drugs than patients with gastritis. CONCLUSIONS Approximately two-thirds of patients with gastrointestinal disorders switched from ranitidine to alternative drugs within 3 months after ranitidine withdrawal. The Cox regression analysis showed that age (>55 years); insurance type (MedAid); comorbidities, such as hypertension, diabetes mellitus, asthma, and osteoarthritis, and gastrointestinal disorder severity influenced the switch from ranitidine to alternative drugs.
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Affiliation(s)
- Minhee Ku
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
- Department of Pharmacy, Dongnam Institute of Radiological & Medical Sciences, Busan, Republic of Korea
| | - Nam Kyung Je
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
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Kim J, Park A, Hwang J, Zhao X, Kwak J, Kim HW, Ku M, Yang J, Kim TI, Jeong KS, Choi U, Lee H, Shin SJ. KS10076, a chelator for redox-active metal ions, induces ROS-mediated STAT3 degradation in autophagic cell death and eliminates ALDH1 + stem cells. Cell Rep 2022; 40:111077. [PMID: 35858554 DOI: 10.1016/j.celrep.2022.111077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 03/17/2022] [Accepted: 06/20/2022] [Indexed: 12/21/2022] Open
Abstract
Redox-active metal ions are pivotal for rapid metabolism, proliferation, and aggression across cancer types, and this presents metal chelation as an attractive cancer cell-targeting strategy. Here, we identify a metal chelator, KS10076, as a potent anti-cancer drug candidate. A metal-bound KS10076 complex with redox potential for generating hydrogen peroxide and superoxide anions induces intracellular reactive oxygen species (ROS). The elevation of ROS by KS10076 promotes the destabilization of signal transducer and activator of transcription 3, removes aldehyde dehydrogenase isoform 1-positive cancer stem cells, and subsequently induces autophagic cell death. Bioinformatic analysis of KS10076 susceptibility in pan-cancer cells shows that KS10076 potentially targets cancer cells with increased mitochondrial function. Furthermore, patient-derived organoid models demonstrate that KS10076 efficiently represses cancer cells with active KRAS, and fluorouracil resistance, which suggests clinical advantages.
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Affiliation(s)
- Jaehee Kim
- Department of Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Songdang Institute for Cancer Research, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Areum Park
- Infectious Diseases Therapeutic Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea; Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Jieon Hwang
- Department of Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Songdang Institute for Cancer Research, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Xianghua Zhao
- Songdang Institute for Cancer Research, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jaesung Kwak
- Infectious Diseases Therapeutic Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Hyun Woo Kim
- Chemical Data-Driven Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Minhee Ku
- Department of Radiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Severance of Radiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Jaemoon Yang
- Department of Radiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Severance of Radiology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Tae Il Kim
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Kyu-Sung Jeong
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Uyeong Choi
- Department of Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Songdang Institute for Cancer Research, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Hyuk Lee
- Infectious Diseases Therapeutic Research Center, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea; Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon 34134, Republic of Korea.
| | - Sang Joon Shin
- Department of Medicine, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Songdang Institute for Cancer Research, Yonsei University College of Medicine, Seoul 03722, Republic of Korea; Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul 03722, Republic of Korea.
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Cho K, Kim NH, Seo SH, Song SH, Jeong CH, Kim HS, Um JE, Ku M, Yang J, Park JY, Ahn SH, Yook JI, Kim SU. A micellized bone morphogenetic protein-7 prodrug ameliorates liver fibrosis by suppressing transforming growth factor- β signaling. Am J Cancer Res 2022; 12:763-778. [PMID: 35261800 PMCID: PMC8900005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023] Open
Abstract
Bone morphogenetic protein-7 (BMP-7) antagonizes transforming growth factor-β (TGF-β), which is critically involved in liver fibrogenesis. Here, we designed a micelle formulation consisting of a protein transduction domain (PTD) fused BMP-7 polypeptide (mPTD-BMP-7) to enhance endocytic delivery, and investigated its ability to ameliorate liver fibrosis. The mPTD-BMP-7 formulation was efficiently delivered into cells via endocytosis, where it inhibited TGF-β mediated epithelial-mesenchymal transition. After successfully demonstrating delivery of fluorescently labeled mPTD-BMP-7 into the murine liver in vivo, we tested the mPTD-BMP-7 formulation in a murine liver fibrosis model, developed by repeated intraperitoneal injection of hepatotoxic carbon tetrachloride, twice weekly from 4 to 16 weeks. mPTD-BMP-7 effects were tested by injecting the mPTD-BMP-7 formulation (or vehicle control) into the lateral tail at a dose of 50 (n=8) or 500 μg/kg (n=10), also twice per week from 4 to 16 weeks. Vehicle-treated control mice developed fibrous septa surrounding the liver parenchyma and marked portal-to-portal bridging with occasional nodules, whereas mice treated with mPTD-BMP-7 showed only fibrous expansion of some portal areas, with or without short fibrous septa. Using the Ishak scoring system, we found that the fibrotic burden was significantly lower in mPTD-BMP-7 treated mice than in control mice (all P<0.001). Treatment with mPTD-BMP-7 protected tight junctions between hepatocytes and reduced extracellular matrix protein levels. It also significantly decreased mRNA levels of collagen 1A, smooth muscle α-actin, and connective tissue growth factor compared with that in control mice (all P<0.001). Collectively, out results indicate that mPTD-BMP-7, a prodrug formulation of BMP-7, ameliorates liver fibrosis by suppressing the TGF-β signaling pathway in a murine liver fibrosis model.
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Affiliation(s)
- Kyungjoo Cho
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of MedicineSeoul, Korea
- Yonsei Liver Center, Severance HospitalSeoul, Korea
| | - Nam Hee Kim
- Department of Oral Pathology, Oral Cancer Research Institute, Yonsei University College of DentistrySeoul, Korea
| | - Sang Hyun Seo
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of MedicineSeoul, Korea
- Yonsei Liver Center, Severance HospitalSeoul, Korea
| | - Sang Hyun Song
- Department of Oral Pathology, Oral Cancer Research Institute, Yonsei University College of DentistrySeoul, Korea
| | - Chul Hee Jeong
- Department of Oral Pathology, Oral Cancer Research Institute, Yonsei University College of DentistrySeoul, Korea
| | - Hyun Sil Kim
- Department of Oral Pathology, Oral Cancer Research Institute, Yonsei University College of DentistrySeoul, Korea
| | | | - Minhee Ku
- Department of Radiology, Yonsei University College of MedicineSeoul, Korea
- Convergence Research Center for Systems Molecular Radiological Science, Yonsei UniversitySeoul, Korea
| | - Jaemoon Yang
- Department of Radiology, Yonsei University College of MedicineSeoul, Korea
- Convergence Research Center for Systems Molecular Radiological Science, Yonsei UniversitySeoul, Korea
| | - Jun Yong Park
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of MedicineSeoul, Korea
- Yonsei Liver Center, Severance HospitalSeoul, Korea
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of MedicineSeoul, Korea
| | - Sang Hoon Ahn
- Yonsei Liver Center, Severance HospitalSeoul, Korea
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of MedicineSeoul, Korea
| | - Jong In Yook
- Department of Oral Pathology, Oral Cancer Research Institute, Yonsei University College of DentistrySeoul, Korea
- MET Life Sciences LtdSeoul, Korea
| | - Seung Up Kim
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of MedicineSeoul, Korea
- Yonsei Liver Center, Severance HospitalSeoul, Korea
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of MedicineSeoul, Korea
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Hwang J, Park A, Kim C, Yu D, Byun H, Ku M, Yang J, Kim TI, Jeong KS, Kim KY, Lee H, Shin SJ. Suppression of DYRK1A/B Drives Endoplasmic Reticulum Stress-mediated Autophagic Cell Death Through Metabolic Reprogramming in Colorectal Cancer Cells. Anticancer Res 2022; 42:589-598. [PMID: 34969768 DOI: 10.21873/anticanres.15516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/09/2021] [Accepted: 11/12/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM We previously identified KS40008 (4-(3-(4-hydroxyphenyl)-1H-pyrazolo[3,4-b]pyridin-5-yl)benzene-1,2-diol), a novel inhibitor of dual-specificity tyrosine phosphorylation-regulated kinase family (DYRK) 1A/B, which exhibited high enzymatic activity and cell proliferation-inhibitory effects in colorectal cancer (CRC) cell lines. In the present study, we aimed to elucidate the antitumor mechanisms of KS40008. MATERIALS AND METHODS To assess the cytotoxicity of KS40008, we utilized a human cell line and organoid model and performed a CCK-8 assay and real-time cell analysis. Mitochondrial function was determined through mitochondrial staining, mito-stress test, and glycolysis test. In addition, we investigated the mechanisms of cancer cell death induced by KS40008 through immunoblotting, real-time quantitative polymerase chain reaction, reactive oxygen species staining, and immunofluorescence staining. RESULTS KS40008 exhibited significant cytotoxicity in CRC and non-CRC cell lines, and organoid models compared to 5-fluorouracil, a conventional chemotherapeutic drug. Moreover, KS40008-induced inhibition of DYRK1A/B led to mitochondrial dysfunction and endoplasmic reticulum stress, promoting autophagic cancer cell death. CONCLUSION KS40008 exerts antitumor activity through the inhibition of DYRK1A/B. Here, we demonstrated a mechanism by which KS40008 affects endoplasmic reticulum stress-mediated autophagy through the induction of mitochondrial stress, leading to cytotoxicity in CRC.
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Affiliation(s)
- Jieon Hwang
- Department of Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Songdang Institute for Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Areum Park
- Infectious Diseases Therapeutic Research Center, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
- Department of Chemistry, Yonsei University, Seoul, Republic of Korea
| | - Chinwoo Kim
- Department of Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Songdang Institute for Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Danbi Yu
- Department of Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Songdang Institute for Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyungju Byun
- Department of Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Songdang Institute for Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Minhee Ku
- Department of Radiology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jaemoon Yang
- Department of Radiology, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Tae Il Kim
- Division of Gastroenterology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyu-Sung Jeong
- Department of Chemistry, Yonsei University, Seoul, Republic of Korea
| | - Ki Young Kim
- Infectious Diseases Therapeutic Research Center, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
- Drug Discovery Platform Technology Research Center, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
| | - Hyuk Lee
- Infectious Diseases Therapeutic Research Center, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea
- Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon, Republic of Korea
| | - Sang Joon Shin
- Songdang Institute for Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
- Division of Medical Oncology, Department of Internal Medicine, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
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10
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Keane C, Hamad N, Barraclough A, Lee YY, Talaulikar D, Ku M, Wight J, Tatarczuch M, Swain F, Gregory GP. Diagnosis and management of primary central nervous system lymphoma: a Consensus Practice Statement from the Australasian Lymphoma Alliance. Intern Med J 2021; 52:1624-1632. [PMID: 34927329 DOI: 10.1111/imj.15658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 10/24/2021] [Accepted: 12/05/2021] [Indexed: 11/28/2022]
Abstract
Primary central nervous system lymphoma is a clinicopathological disease entity that accounts for 1 % of all non-Hodgkin lymphoma (NHL). Advanced patient age, adverse disease biology and complexities of diagnosis and treatment render outcomes markedly inferior to systemic NHL. Despite this, an increasing evidence base including limited randomised controlled clinical trial data is informing optimal therapeutic strategies with methotrexate-based induction chemotherapy schedules and intensified consolidation in selected patients. This practice statement represents an evidence-based review of the literature and has been devised to assist healthcare professionals in the diagnosis and management of this disease. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- C Keane
- Division of Cancer Services, Princess Alexandra Hospital, Brisbane, Australia.,University of Queensland, Brisbane, Australia
| | - N Hamad
- Department of Haematology, St Vincent's Hospital Sydney, Australia.,School of Medicine, Sydney, University of Notre Dame, Australia.,St Vincent's Clinical School, Sydney, University of New South, UK
| | - A Barraclough
- Department of Haematology, Fiona Stanley Hospital, Western Australia, Australia
| | - Y Y Lee
- Radiation Oncology, Division of Cancer Services, Princess Alexandra Hospital, Queensland, Australia
| | - D Talaulikar
- Department of Haematology, Canberra Hospital, ACT, Australia
| | - M Ku
- Department of Clinical Haematology, St Vincent's Hospital Melbourne, Fitzroy, Australia.,University of Melbourne, Victoria, Australia
| | - J Wight
- Department of Haematology, Townsville Hospital, Australia
| | - M Tatarczuch
- Monash Haematology, Monash Health, Clayton, Australia.,School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
| | - F Swain
- Division of Cancer Services, Princess Alexandra Hospital, Australia
| | - G P Gregory
- Monash Haematology, Monash Health, Clayton, Australia.,School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
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11
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Ku M, Je NK. Underutilisation of prophylactic G-CSF in breast cancer patients receiving adjuvant docetaxel/cyclophosphamide chemotherapy. J Chemother 2021; 34:534-542. [PMID: 34870568 DOI: 10.1080/1120009x.2021.2009988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Docetaxel/cyclophosphamide (TC) is a widely used adjuvant chemotherapy regimen, especially in patients with node-negative or low-risk node-positive breast cancer. Guidelines recommend the use of prophylactic granulocyte colony-stimulating factor (G-CSF) to prevent febrile neutropenia. In this study, we aimed to explore the use of G-CSF as a primary prophylactic and determine the factors influencing its use. This retrospective study used nationwide claims data from the National Inpatient Sample compiled by the Health Insurance Review and Assessment Service in South Korea from 2018. The claims data included 10% of inpatients admitted at least once in 2018 and 1% of outpatients who were not admitted. Female patients with breast cancer who received an adjuvant TC regimen after surgery were selected. Primary prophylactic G-CSF was defined as G-CSF prescribed within two days of the first cycle of TC. The factors influencing its utilisation were investigated using the chi-square test and a multiple logistic regression model. A total of 229 patients were included in the analysis. The proportion of patients who received primary prophylactic G-CSF treatment after the first cycle of TC was 55.5%. The factors positively influencing G-CSF utilization were patients' age ≥65 years, location (i.e. metropolitan areas), and the type of healthcare facility (i.e. non-tertiary hospitals). The use of prophylactic G-CSF in patients with breast cancer who received the adjuvant TC regimen was insufficient. The use of primary G-CSF prophylaxis should be emphasised to reduce the risk of febrile neutropenia among patients receiving a myelosuppressive TC regimen.
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Affiliation(s)
- Minhee Ku
- College of Pharmacy, Pusan National University, Busan, Republic of Korea.,Department of Pharmacy, Dongnam Institute of Radiological & Medical Sciences, Busan, Republic of Korea
| | - Nam Kyung Je
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
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12
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Wight J, Hamad N, Campbell BA, Ku M, Lee K, Rose H, Armytage T, Latimer M, Lee HP, Lee ST, Dickinson M, Khor R, Verner E. Diffuse large B-cell lymphoma: A consensus practice statement from the Australasian Lymphoma Alliance. Intern Med J 2021; 52:1609-1623. [PMID: 34532916 DOI: 10.1111/imj.15533] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/29/2021] [Accepted: 09/12/2021] [Indexed: 11/28/2022]
Abstract
Diffuse large B-cell lymphoma (DLBCL) is the most common lymphoma subtype, accounting for 30-40% of lymphoma diagnoses. Though aggressive, cure is achievable in approximately 60% of cases with primary chemo-immunotherapy, and in a further substantial minority by salvage therapy and autologous stem cell transplantation. Despite promising activity in early phase clinical trials, no intensified or novel treatment regimen has improved outcomes over R-CHOP21 in randomised studies. However, there remain several areas of controversy including the most appropriate prognostic markers, CNS prophylaxis and the optimal treatment for patients with high-risk disease. This position statement presents an evidence-based synthesis of the literature for application in Australasian practice. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- J Wight
- Townsville University Hospital, Townsville, Australia.,Austin Health, Heidelberg, Australia.,The University of Melbourne, Melbourne, Australia.,James Cook University, Townsville, Australia
| | - N Hamad
- Department of Haematology, St Vincent's Hospital Sydney, Australia.,School of Medicine, Sydney, University of Notre Dame Australia.,St Vincent's Clinical School, Sydney, University of New South UK
| | - B A Campbell
- Department of Radiation oncology, Peter MacCallum Cancer Centre, Parkville, Victoria.,Department of Clinical Pathology, University of Melbourne, Parkville, Victoria
| | - M Ku
- St Vincent's Hospital, Melbourne, Victoria
| | - K Lee
- School of Medicine, University of Sydney, Sydney, New South Wales, Australia.,Anatomical Pathology Department, NSW Health Pathology, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
| | - H Rose
- University Hospital Geelong, Victoria.,School of Medicine, Deakin University Geelong, Victoria
| | - T Armytage
- Department of haematology, Gosford Hospital, Gosford, New South, UK
| | - M Latimer
- Canberra Hospital, Canberra, Australia.,Australian National University, Canberra, Australia
| | - H P Lee
- Flinders Medical Centre, Adelaide, Australia
| | - S T Lee
- Austin Health, Heidelberg, Australia
| | - M Dickinson
- The University of Melbourne, Melbourne, Australia.,Department of Haematology, Peter MacCallum Cancer Centre, Parkville, Victoria
| | - R Khor
- Austin Health, Heidelberg, Australia
| | - E Verner
- School of Medicine, University of Sydney, Sydney, New South Wales, Australia.,Department of Haematology, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
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13
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Hertzberg M, Ku M, Catalani O, Althaus B, Simko S, Gregory GP. A PHASE III TRIAL OF GLOFITAMAB PLUS GEMCITABINE AND OXALIPLATIN (GEMOX) VS RITUXIMAB PLUS GEMOX FOR RELAPSED/REFRACTORY DIFFUSE LARGE B‐CELL LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.165_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M. Hertzberg
- Prince of Wales Hospital Department of Hematology Sydney Australia
| | - M. Ku
- St.Vincent’s Hospital, The University of Melbourne, Department of Haematology Melbourne Australia
| | - O. Catalani
- F. Hoffmann‐La Roche Ltd, Statistics Basel Switzerland
| | - B. Althaus
- Genentech Inc., Product Development Hematology South San Francisco USA
| | - S. Simko
- Genentech Inc., Product Development Hematology South San Francisco USA
| | - G. P. Gregory
- School of Clinical Sciences at Monash Health Monash University Department of Clinical Haematology Melbourne Australia
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14
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Kim S, Jeong CH, Song SH, Um JE, Kim HS, Yun JS, Han D, Cho ES, Nam BY, Yook JI, Ku M, Yang J, Kim MD, Kim NH, Yoo TH. Micellized Protein Transduction Domain-Bone Morphogenetic Protein-7 Efficiently Blocks Renal Fibrosis Via Inhibition of Transforming Growth Factor-Beta-Mediated Epithelial-Mesenchymal Transition. Front Pharmacol 2020; 11:591275. [PMID: 33364962 PMCID: PMC7751754 DOI: 10.3389/fphar.2020.591275] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/09/2020] [Indexed: 11/13/2022] Open
Abstract
Tubulointerstitial renal fibrosis is a chronic disease process affecting chronic kidney disease (CKD). While the etiological role of transforming growth factor-beta (TGF-β) is well known for epithelial–mesenchymal transition (EMT) in chronic kidney disease, effective therapeutics for renal fibrosis are largely limited. As a member of the TGF-β superfamily, bone morphogenetic protein-7 (BMP-7) plays an important role as an endogenous antagonist of TGF-β, inhibiting fibrotic progression in many organs. However, soluble rhBMP-7 is hardly available for therapeutics due to its limited pharmacodynamic profile and rapid clearance in clinical settings. In this study, we have developed a novel therapeutic approach with protein transduction domain (PTD) fused BMP-7 in micelle (mPTD-BMP-7) for long-range signaling in vivo. Contrary to rhBMP-7 targeting its cognate receptors, the nano-sized mPTD-BMP-7 is transduced into cells through an endosomal pathway and secreted to the exosome having active BMP-7. Further, transduced mPTD-BMP-7 successfully activates SMAD1/5/8 and inhibits the TGF-β–mediated epithelial–mesenchymal transition process in vitro and in an in vivo unilateral ureter obstruction model. To determine the clinical relevance of our strategy, we also developed an intra-arterial administration of mPTD-BMP-7 through renal artery in pigs. Interestingly, mPTD-BMP-7 through renal artery intervention effectively delivered into Bowman’s space and inhibits unilateral ureter obstruction–induced renal fibrosis in pigs. Our results provide a novel therapeutic targeting TGF-β–mediated renal fibrosis and other organs as well as a clinically available approach for kidney.
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Affiliation(s)
- Seonghun Kim
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Korea.,MET Life Science, Seoul, Korea
| | - Cheol-Hee Jeong
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Korea
| | - Sang Hyun Song
- Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Korea
| | | | - Hyun Sil Kim
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Korea.,Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Korea
| | - Jun Seop Yun
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Korea.,Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Korea
| | - Dawool Han
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Korea.,Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Korea
| | - Eunae Sandra Cho
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Korea.,Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Korea
| | - Bo Young Nam
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Jong In Yook
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Korea.,Department of Oral Pathology, Yonsei University College of Dentistry, Seoul, Korea
| | - Minhee Ku
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea.,Convergence Research Center for Systems Molecular Radiological Science, Yonsei University, Seoul, Korea
| | - Jaemoon Yang
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea.,Convergence Research Center for Systems Molecular Radiological Science, Yonsei University, Seoul, Korea
| | - Man-Deuk Kim
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea
| | - Nam Hee Kim
- Oral Cancer Research Institute, Yonsei University College of Dentistry, Seoul, Korea
| | - Tae-Hyun Yoo
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
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15
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Moon HJ, Ku M, Roh YH, Lee HJ, Yang J, Bong KW. Elimination of Unreacted Acrylate Double Bonds in the Polymer Networks of Microparticles Synthesized via Flow Lithography. Langmuir 2020; 36:2271-2277. [PMID: 32013441 DOI: 10.1021/acs.langmuir.9b02737] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Flow lithography (FL), a versatile technique used to synthesize anisotropic multifunctional microparticles, has attracted substantial interest, given that the resulting particles with complex geometries and multilayered biochemical functionalities can be used in a wide variety of applications. However, after this process, there are double bonds remaining from the cross-linkable groups of monomers. The unreacted cross-linkable groups can affect the particles' biochemical properties. Here, we verify that the microparticles produced by FL contain a significant number of unreacted acrylate double bonds (UADBs), which could cause irreversible biochemical changes in the particle and pernicious effects to biological systems. We also confirm that the particles contain a considerable number of UADBs, regardless of the various synthetic (lithographic) conditions that can be used in a typical FL process. We present an effective way to eliminate a substantial amount of UADBs after synthesis by linking biochemically inert poly(ethylene glycol) based on click chemistry. We verify that eliminating UADBs by using this click chemistry approach can efficiently resolve problems, such as the occurrence of random reactions and the cytotoxicity of UADBs.
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Affiliation(s)
- Hyun June Moon
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Korea
| | - Minhee Ku
- Department of Radiology, College of Medicine, Yonsei University, Seoul 03722, Korea
| | - Yoon Ho Roh
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Korea
| | - Hyun Jee Lee
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Korea
| | - Jaemoon Yang
- Department of Radiology, College of Medicine, Yonsei University, Seoul 03722, Korea
- YUHS-KRIBB Medical Convergence Research Center, Yonsei University, Seoul 03722, Korea
| | - Ki Wan Bong
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Korea
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16
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Park KH, Ku M, Yoon N, Hwang DY, Lee J, Yang J, Seo S. Effect of polydiacetylene-based nanosomes on cell viability and endocytosis. Nanotechnology 2019; 30:245101. [PMID: 30836350 DOI: 10.1088/1361-6528/ab0ccf] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Polydiacetylene-based nanoparticles have been developed as nanocarriers for various bio-applications. However, how nanocarriers enter the cell environment and affect cell viability has not yet been considerably explored. In this study, polydiacetylene-based nanoliposomes (nanosomes) were electrostatically complexed with rhodamine fluorophores. Based on real-time cell imaging and cell viability assessment, the most highly polymerized nanosomes were found to be less toxic to cells. Moreover, it was revealed that the rhodamine/polydiacetylene nanosome complex dissociates at cell environment, the polydiacetylene nanosome penetrates into cells, as suggested by the fluorescence observed in confocal microscopy images.
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Affiliation(s)
- Kyu Ha Park
- Department of Biomaterials Science, Pusan National University, Miryang 50463, Republic of Korea. Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea
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17
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Kim W, Assouline S, Bartlett N, Bosch F, Budde L, Cheah C, Gregory G, Hong J, Ku M, Marlton P, Matasar M, Nastoupil L, Panizo C, Sehn L, Tzachanis D, Chu W, Hernandez M, Kwan A, Li C, Sison I, Wei M, Yin S, Yousefi K, Yoon S. AN ONGOING PHASE 1/1B TRIAL INVESTIGATING NOVEL TREATMENT REGIMENS WITH MOSUNETUZUMAB IN RELAPSED/REFRACTORY B-CELL NON-HODGKIN LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.15_2632] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- W.S. Kim
- Division of Hematology-Oncology, Department of Internal Medicine; Samsung Medical Center, Sungkyunkwan University School of Medicine; Seoul Republic of Korea
| | - S. Assouline
- Division of Hematology; Jewish General Hospital; Montréal, QC Canada
| | - N.L. Bartlett
- Siteman Cancer Center; Washington University School of Medicine in St. Louis; St. Louis MO United States
| | - F. Bosch
- Department of Hematology; University Hospital Vall d'Hebron; Barcelona Spain
| | - L.E. Budde
- Department of Hematology & Hematopoietic Cell Transplantation; City of Hope National Medical Center; Duarte CA United States
| | - C. Cheah
- Linear Clinical Research and School of Medicine; University of Western Australia; WA Australia
| | - G.P. Gregory
- School of Clinical Sciences at Monash Health; Monash University; Clayton VIC Australia
| | - J. Hong
- Department of Oncology; ASAN Medical Center; Seoul Republic of Korea
| | - M. Ku
- Department of Haematology; St Vincent's Hospital, University of Melbourne; Melbourne VIC Australia
| | - P. Marlton
- Department of Medicine; University of Queensland School of Medicine and Princess Alexandra Hospital; Brisbane QLD Australia
| | - M. Matasar
- Lymphoma Service, Division of Hematologic Oncology, Department of Medicine; Memorial Sloan Kettering Cancer Center; New York NY United States
| | - L. Nastoupil
- Department of Lymphoma and Myeloma, Division of Cancer Medicine; The University of Texas MD Anderson Cancer Center; Houston TX United States
| | - C. Panizo
- Haemotology and Haemotherapy Department; Clínica Universidad de Navarra; Pamplona Spain
| | - L.H. Sehn
- Medical Oncology; BC Cancer Centre for Lymphoid Cancer and University of British Columbia; Vancouver BC Canada
| | - D. Tzachanis
- Department of Medicine; University of California San Diego; La Jolla CA United States
| | - W. Chu
- Product Development Oncology; Genentech, Inc.; South San Francisco CA United States
| | - M.G. Hernandez
- Product Development Oncology; Genentech, Inc.; South San Francisco CA United States
| | - A. Kwan
- Product Development Oncology; Genentech, Inc.; South San Francisco CA United States
| | - C.C. Li
- Product Development Oncology; Genentech, Inc.; South San Francisco CA United States
| | - I. Sison
- Product Development Oncology; Genentech, Inc.; South San Francisco CA United States
| | - M.C. Wei
- Product Development Oncology; Genentech, Inc.; South San Francisco CA United States
| | - S. Yin
- Product Development Oncology; Genentech, Inc.; South San Francisco CA United States
| | - K. Yousefi
- Product Development, Biometrics, Biostatistics; Genentech, Inc.; South San Francisco CA United States
| | - S. Yoon
- Division of Hematology/Medical Oncology, Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
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18
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Kim JW, Lee SS, Park J, Ku M, Yang J, Kim SH. Smart Microcapsules with Molecular Polarity- and Temperature-Dependent Permeability. Small 2019; 15:e1900434. [PMID: 30997745 DOI: 10.1002/smll.201900434] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/14/2019] [Indexed: 06/09/2023]
Abstract
Microcapsules with molecule-selective permeation are appealing as microreactors, capsule-type sensors, drug and cell carriers, and artificial cells. To accomplish molecular size- and charge-selective permeation, regular size of pores and surface charges have been formed in the membranes. However, it remains an important challenge to provide advanced regulation of transmembrane transport. Here, smart microcapsules are designed that provide molecular polarity- and temperature-dependent permeability. With capillary microfluidic devices, water-in-oil-in-water (W/O/W) double-emulsion drops are prepared, which serve as templates to produce microcapsules. The oil shell is composed of two monomers and dodecanol, which turns to a polymeric framework whose continuous voids are filled with dodecanol upon photopolymerization. One of the monomers provides mechanical stability of the framework, whereas the other serves as a compatibilizer between growing polymer and dodecanol, preventing macrophase separation. Above melting point of dodecanol, molecules that are soluble in the molten dodecanol are selectively allowed to diffuse across the shell, where the rate of transmembrane transport is strongly influenced by partition coefficient. The rate is drastically lowered for temperatures below the melting point. This molecular polarity- and temperature-dependent permeability renders the microcapsules potentially useful as drug carriers for triggered release and contamination-free microreactors and microsensors.
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Affiliation(s)
- Ji-Won Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Sang Seok Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
- Functional Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology, Jeollabuk-do, 55324, Republic of Korea
| | - Jinho Park
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
| | - Minhee Ku
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jaemoon Yang
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
| | - Shin-Hyun Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
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19
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Byeon HK, Ku M, Yang J. Beyond EGFR inhibition: multilateral combat strategies to stop the progression of head and neck cancer. Exp Mol Med 2019; 51:1-14. [PMID: 30700700 PMCID: PMC6353966 DOI: 10.1038/s12276-018-0202-2] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/03/2018] [Accepted: 10/09/2018] [Indexed: 02/08/2023] Open
Abstract
Epidermal growth factor receptor (EGFR) overexpression is common in head and neck squamous cell carcinoma. Targeted therapy specifically directed towards EGFR has been an area of keen interest in head and neck cancer research, as EGFR is potentially an integration point for convergent signaling. Despite the latest advancements in cancer diagnostics and therapeutics against EGFR, the survival rates of patients with advanced head and neck cancer remain disappointing due to anti-EGFR resistance. This review article will discuss recent multilateral efforts to discover and validate actionable strategies that involve signaling pathways in heterogenous head and neck cancer and to overcome anti-EGFR resistance in the era of precision medicine. Particularly, this review will discuss in detail the issue of cancer metabolism, which has recently emerged as a novel mechanism by which head and neck cancer may be successfully controlled according to different perspectives. South Korean researchers propose novel combination strategies for overcoming drug resistance and halting the progression of head and neck cancer (HNC). Although high levels of epidermal growth factor receptor (EGFR) protein in HNC correlate with reduced survival, patients’ response to the EGFR inhibitor cetuximab often declines rapidly after a short period of effectiveness. Hyung Kwon Byeon at Korea University College of Medicine in Seoul and colleagues review current knowledge of the mechanisms underlying cetuximab resistance. They suggest that evaluating a patient’s genetic profile and combining cetuximab with drugs that enhance the effects of inhibiting EGFR signaling pathways (with inhibitors of other EGFR family members or proteins that mediate EGFR entry to the cell nucleus, for example) as well as with agents that inhibit cancer cell metabolism could be a more effective approach for treating HNC.
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Affiliation(s)
- Hyung Kwon Byeon
- Department of Otorhinolaryngology-Head and Neck Surgery, Soonchunhyang University College of Medicine, Seoul, Republic of Korea. .,Systems Molecular Oncology for Head and Neck Cancer, Seoul, Republic of Korea. .,Systems Molecular Radiology at Yonsei, Seoul, Republic of Korea.
| | - Minhee Ku
- Systems Molecular Radiology at Yonsei, Seoul, Republic of Korea.,Department of Radiology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Research Institute of Radiological Science, Yonsei University, Seoul, Republic of Korea
| | - Jaemoon Yang
- Systems Molecular Radiology at Yonsei, Seoul, Republic of Korea. .,Department of Radiology, Yonsei University College of Medicine, Seoul, Republic of Korea. .,Research Institute of Radiological Science, Yonsei University, Seoul, Republic of Korea.
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20
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Ko Y, Kim J, Jeong HY, Kwon G, Kim D, Ku M, Yang J, Yamauchi Y, Kim HY, Lee C, You J. Antibacterial poly (3,4-ethylenedioxythiophene):poly(styrene-sulfonate)/agarose nanocomposite hydrogels with thermo-processability and self-healing. Carbohydr Polym 2019; 203:26-34. [DOI: 10.1016/j.carbpol.2018.09.026] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/06/2018] [Accepted: 09/13/2018] [Indexed: 02/06/2023]
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21
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Ku M, Kim HJ, Yau SY, Yoon N, Kim NH, Yook JI, Suh JS, Kim DE, Yang J. Microsphere-Based Nanoindentation for the Monitoring of Cellular Cortical Stiffness Regulated by MT1-MMP. Small 2018; 14:e1803000. [PMID: 30350552 DOI: 10.1002/smll.201803000] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 08/21/2018] [Indexed: 05/07/2023]
Abstract
Biophysical properties are intimately connected to metastatic functions and aggressiveness in cancers. Especially, cellular stiffness is regarded as a biomarker for the understanding of metastatic potential and drug sensitivity. Here, protease-mediated changes of cortical stiffness are identified due to the deformation of cytoskeleton alignment at a cortex. For the past few decades, membrane type 1-matrix metalloproteinase (MT1-MMP) has been well known as a kernel protease enriched in podosomes during metastasis for extracellular matrix degradation. However, the biophysical significance of MT1-MMP expressing cancer cells is still unknown. Therefore, the nanomechanics of cancer cells is analyzed by a nanoindentation using a microsphere-attached cantilever of atomic force microscopy (AFM). In conclusion, the results suggest that MT1-MMP has contributed as a key regulator in cytoskeletal deformation related with cancer metastasis. Particularly, the AFM-based nanoindentation system for the monitoring of cortical nanomechanics will be crucial to understand molecular networks in cancers.
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Affiliation(s)
- Minhee Ku
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
- Systems Molecular Radiology at Yonsei, Seoul, 03722, Republic of Korea
| | - Hyun-Joon Kim
- Department of Precision Mechanical Engineering, Kyungpook National University, 2559, Gyeongsang-daero, Sangju, 37224, Republic of Korea
| | - Su Yee Yau
- Department of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center of Nano-Wear, Yonsei University, Seoul, 03722, Republic of Korea
| | - Nara Yoon
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
- Systems Molecular Radiology at Yonsei, Seoul, 03722, Republic of Korea
| | - Nam Hee Kim
- Department of Oral Pathology, Oral cancer Research Institute, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Jong In Yook
- Department of Oral Pathology, Oral cancer Research Institute, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Jin-Suck Suh
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
- YUHS-KRIBB Medical Convergence Research Institute, Seoul, 03722, Republic of Korea
- Severance Biomedical Science Institute (SBSI), Seoul, 03722, Republic of Korea
| | - Dae-Eun Kim
- Department of Mechanical Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- Center of Nano-Wear, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jaemoon Yang
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
- Systems Molecular Radiology at Yonsei, Seoul, 03722, Republic of Korea
- Severance Biomedical Science Institute (SBSI), Seoul, 03722, Republic of Korea
- Research Institute of Radiological Science, Yonsei University, Seoul, 03722, Republic of Korea
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Heo D, Ku M, Kim JH, Yang J, Suh JS. Aptamer-Modified Magnetic Nanosensitizer for In Vivo MR Imaging of HER2-Expressing Cancer. Nanoscale Res Lett 2018; 13:288. [PMID: 30229394 PMCID: PMC6143495 DOI: 10.1186/s11671-018-2682-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Accepted: 08/21/2018] [Indexed: 06/08/2023]
Abstract
The aim of this study was the development of a human epidermal growth factor receptor 2 (HER2)-targetable contrast agent for magnetic resonance imaging (MRI) with a high magnetic sensitivity. An anti-HER2 aptamer-modified magnetic nanosensitizer (AptHER2-MNS) was prepared by conjugation with 5'-thiol-modified aptamers and maleimidylated magnetic nanocrystals (MNCs). The physicochemical characteristics and targeting ability of AptHER2-MNS were confirmed, and the binding affinity (Kd) onto HER2 protein of AptHER2-MNS was 0.57 ± 0.26 nM. In vivo MRI contrast enhancement ability was also verified at HER2+ cancer cell (NIH3T6.7)-xenograft mouse models (n = 3) at 3T clinical MRI instrument. The control experiment was carried out using non-labeled MNCs. The results indicated that up to 150% contrast enhancement was achieved at the tumor region in the T2-weighted MR images after the injection of the AptHER2-MNS agent in mice that received the NIH3T6.7 cells.
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Affiliation(s)
- Dan Heo
- Department of Radiology, Yonsei University College of Medicine, Seoul, 03722 Republic of Korea
| | - Minhee Ku
- Department of Radiology, Yonsei University College of Medicine, Seoul, 03722 Republic of Korea
- Systems Molecular Radiology at Yonsei, Seoul, 03722 Republic of Korea
| | - Jung-Hoon Kim
- Department of Radiology, Yonsei University College of Medicine, Seoul, 03722 Republic of Korea
- Systems Molecular Radiology at Yonsei, Seoul, 03722 Republic of Korea
- Brain Korea 21 plus Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722 Republic of Korea
| | - Jaemoon Yang
- Department of Radiology, Yonsei University College of Medicine, Seoul, 03722 Republic of Korea
- Systems Molecular Radiology at Yonsei, Seoul, 03722 Republic of Korea
- Brain Korea 21 plus Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722 Republic of Korea
- YUHS-KRIBB Medical Convergence Research Center, Yonsei University, Seoul, 03722 Republic of Korea
- Severance Biomedical Science Institute, Seoul, 03722 Republic of Korea
| | - Jin-Suck Suh
- Department of Radiology, Yonsei University College of Medicine, Seoul, 03722 Republic of Korea
- Brain Korea 21 plus Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722 Republic of Korea
- YUHS-KRIBB Medical Convergence Research Center, Yonsei University, Seoul, 03722 Republic of Korea
- Severance Biomedical Science Institute, Seoul, 03722 Republic of Korea
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23
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Byeon HK, Na HJ, Yang YJ, Ko S, Yoon SO, Ku M, Yang J, Kim JW, Ban MJ, Kim JH, Kim DH, Kim JM, Choi EC, Kim CH, Yoon JH, Koh YW. Acquired resistance to BRAF inhibition induces epithelial-to-mesenchymal transition in BRAF (V600E) mutant thyroid cancer by c-Met-mediated AKT activation. Oncotarget 2018; 8:596-609. [PMID: 27880942 PMCID: PMC5352181 DOI: 10.18632/oncotarget.13480] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 11/12/2016] [Indexed: 12/20/2022] Open
Abstract
Previously, the authors have identified that c-Met mediates reactivation of the PI3K/AKT pathway following BRAF inhibitor treatment in BRAF (V600E) mutant anaplastic thyroid cancer, thereby contributing to the acquired drug resistance. Therefore dual inhibition of BRAF and c-Met led to sustained treatment response, thereby maximizing the specific anti-tumor effect of targeted therapy. The present study goes one step further and aims to investigate the effect of acquired resistance of BRAF inhibitor on epithelial-to-mesenchymal transition (EMT) in BRAF mutant thyroid cancer cells and the effect of dual inhibition from combinatorial therapy. Two thyroid cancer cell lines, 8505C and BCPAP were selected and treated with BRAF inhibitor, PLX4032 and its effect on EMT were examined and compared. Further investigation was carried out in orthotopic xenograft mouse models. Unlike BCPAP cells, the BRAF inhibitor resistant 8505C cells showed increased expressions of EMT related markers such as vimentin, β-catenin, and CD44. The combinatorial treatment of PLX4032 and PHA665752, a c-Met inhibitor reversed EMT. Similar results were confirmed in vivo. c-Met-mediated reactivation of the PI3K/AKT pathway contributes to the drug resistance to PLX4032 in BRAF (V600E) mutant anaplastic thyroid cancer cells and further promotes tumor cell migration and invasion by upregulated EMT mechanism. Dual inhibition of BRAF and c-Met leads to reversal of EMT, suggesting a maximal therapeutic response.
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Affiliation(s)
- Hyung Kwon Byeon
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hwi Jung Na
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yeon Ju Yang
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sooah Ko
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sun Och Yoon
- Department of Pathology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Minhee Ku
- Department of Radiology, Yonsei University College of Medicine, Seoul, Republic of Korea.,Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jaemoon Yang
- Department of Radiology, Yonsei University College of Medicine, Seoul, Republic of Korea.,YUHS-KRIBB Medical Convergence Research Institute, Seoul, Republic of Korea
| | - Jae Wook Kim
- Department of Otorhinolaryngology, Soonchunhyang University College of Medicine, Republic of Korea
| | - Myung Jin Ban
- Department of Otorhinolaryngology, Soonchunhyang University College of Medicine, Republic of Korea
| | - Ji-Hoon Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Da Hee Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung Min Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun Chang Choi
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chang-Hoon Kim
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea.,The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joo-Heon Yoon
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea.,The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.,Research Center for Human Natural Defense System, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yoon Woo Koh
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Republic of Korea.,The Airway Mucus Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
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Lee TY, Ku M, Kim B, Lee S, Yang J, Kim SH. Microfluidic Production of Biodegradable Microcapsules for Sustained Release of Hydrophilic Actives. Small 2017; 13:1700646. [PMID: 28558167 DOI: 10.1002/smll.201700646] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/13/2017] [Indexed: 06/07/2023]
Abstract
Biodegradable microcapsules with a large aqueous lumen and ultrathin membrane are microfluidically designed for sustained release of hydrophilic bioactives using water-in-oil-in-water double-emulsion drops as a template. As a shell phase, an organic solution of poly(lactic-co-glycolic acid) is used, which is consolidated to form a biodegradable membrane. The encapsulants stored in the lumen are released over a long period of time as the membranes degrade. The period can be controlled in a range of -three to five months at neutral pH condition by adjusting membrane thickness, providing highly sustained release and potentially enabling the programed release of multiple drugs. At acidic or basic condition, the degradation is accelerated, leading to the release in the period of approximately two months. As the membrane is semipermeable, the microcapsules respond to the osmotic pressure difference across the membrane. The microcapsules are inflated in hypotonic condition and deflated in hypertonic condition. Both conditions cause cracks on the membrane, resulting in the fast release of encapsulants in a day. The microcapsules implanted in mice also show sustained release, despite the period is decreased to a month. It is believed that the microcapsules are promising for the in vivo sustained release of drugs for high and long-term efficacy.
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Affiliation(s)
- Tae Yong Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Minhee Ku
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, South Korea
| | - Bomi Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Sangmin Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
| | - Jaemoon Yang
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03722, South Korea
| | - Shin-Hyun Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
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25
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Byeon HK, Ku M, Yang YJ, Cho MH, Oh Y, Kim JW, Ban MJ, Kim JH, Kim DH, Kim JH, Yang J, Koh YW. Abstract 881: CD44-specific supramolecular hydrogels for fluorescence molecular imaging of EMT induced BRAF <V600E> mutant thyroid cancer cells. Cancer Res 2017. [DOI: 10.1158/1538-7445.am2017-881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Previously, the authors have identified that the acquired drug resistance to BRAF inhibitor, PLX4032 in BRAF (V600E) mutant anaplastic thyroid cancer promotes not only tumor progression and proliferation, but also migration and invasion of cancer through upregulated epithelial-to-mesenchymal transition (EMT). The underlying mechanism to the acquired resistance to BRAF inhibition involves c-Met-mediated reactivation of PI3K/AKT pathway. Therefore combinatorial dual targeted therapy of BRAF and c-Met inhibition has shown to reverse EMT and show maximal antitumor effect. Previously, the authors have developed a novel in vivo imaging strategy using CD44-targetable near-infrared (NIR)-sensitive supramolecular hydrogels (NIRSHs) for the recognition of CD44-expressing cancer cells. In the present study, we applied this NIR-sensitive molecular imaging probe in detecting the upregulated EMT changes in PLX4032-treated 8505C cells. The CD44-targetable NIRSHs were fabricated by polyplexing Cy5.5-conjugated polyethyleimine and hyaluronic acid in an aqueous medium. Ectopic xenograft mouse models were prepared by injecting 8505C cells at the flank of male athymic nude BALB/c mice, aged 6 weeks. After confirming tumor formation at 3 weeks post-injection, the mice were randomly divided into four groups and were each treated under different conditions; DMSO, PLX4032, PHA665752, PLX4032 and PHA665752. After 3 weeks, the pre-established NIRSH probes were injected and confirmed by IVIS imaging. The injected NIRSH probes showed highest uptake in the PLX4032 single treatment group and lowest uptake in the PLX4032 and PHA665752 combination group. Sizes of tumor were verified by MRI which showed correlations with the NIRSH fluorescence imagings. The results suggest that CD44-targetable NIRSHs imaging shows potential as a non-invasive in vivo imaging tool in detecting the increased invasion potential of cancer cells and monitoring appropriate therapeutic effects.
Citation Format: Hyung Kwon Byeon, Minhee Ku, Yeon Ju Yang, Min Hee Cho, Yoojung Oh, Jae Wook Kim, Myung Jin Ban, Ji-Hoon Kim, Da Hee Kim, Joo Hyun Kim, Jaemoon Yang, Yoon Woo Koh. CD44-specific supramolecular hydrogels for fluorescence molecular imaging of EMT induced BRAF <V600E> mutant thyroid cancer cells [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 881. doi:10.1158/1538-7445.AM2017-881
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Affiliation(s)
- Hyung Kwon Byeon
- 1Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Minhee Ku
- 1Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yeon Ju Yang
- 1Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min Hee Cho
- 1Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yoojung Oh
- 1Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae Wook Kim
- 2Soonchunhyang University College of Medicine, Seoul, Republic of Korea
| | - Myung Jin Ban
- 2Soonchunhyang University College of Medicine, Seoul, Republic of Korea
| | - Ji-Hoon Kim
- 3Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Da Hee Kim
- 1Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joo Hyun Kim
- 1Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jaemoon Yang
- 1Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yoon Woo Koh
- 1Yonsei University College of Medicine, Seoul, Republic of Korea
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Seymour J, Opat S, Cull G, Trotman J, Gottlieb D, Simpson D, Marlton P, Anderson M, Ku M, Ritchie D, Ratnasingam S, Augustson B, Kim W, Wang L, Xue L, Hilger J, Huang J, Hedrick E, Roberts A, Tam C. HIGH OVERALL RESPONSE RATE WITH THE BTK INHIBITOR BGB-3111 IN PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA/SMALL LYMPHOCYTIC LYMPHOMA: AN UPDATE ON SAFETY AND ACTIVITY. Hematol Oncol 2017. [DOI: 10.1002/hon.2438_97] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J.F. Seymour
- Department of Haematology; Peter MacCallum Cancer Centre; East Melbourne Australia
| | - S. Opat
- Clinical Haematology; Monash Health; Clayton Australia
| | - G. Cull
- Department of Haematology; Sir Charles Gairdner Hospital; Perth Australia
| | - J. Trotman
- Department of Haematology; Concord Hospital; Concord Australia
| | - D. Gottlieb
- Haematology Department; Westmead Hospital; Westmead Australia
| | - D. Simpson
- Aukland Haematology; North Shore Hospital; Aukland New Zealand
| | - P. Marlton
- University of Queensland School of Medicine; Princess Alexandra Hospital; Brisbane Australia
| | - M. Anderson
- Department of Clinical Haematology & BMT, The Royal Melbourne Hospital; University of Melbourne; Parkville Australia
| | - M. Ku
- Clinical Haematology, Austin Health; Heidelberg Australia
| | - D.S. Ritchie
- Department of Haematology; Peter MacCallum Cancer Centre; East Melbourne Australia
| | | | - B. Augustson
- Department of Haematology; Sir Charles Gairdner Hospital; Perth Australia
| | - W. Kim
- Division of Hematology-Oncology; Samsung Medical Center; Seoul Korea, Republic of
| | - L. Wang
- Research and Development Center, BeiGene, Beijing and Emeryville; CA, US China
| | - L. Xue
- Research and Development Center, BeiGene, Beijing and Emeryville; CA, US China
| | - J. Hilger
- Research and Development Center, BeiGene, Beijing and Emeryville; CA, US China
| | - J. Huang
- Research and Development Center, BeiGene, Beijing and Emeryville; CA, US China
| | - E. Hedrick
- Research and Development Center, BeiGene, Beijing and Emeryville; CA, US China
| | - A.W. Roberts
- Department of Clinical Haematology & BMT, The Royal Melbourne Hospital; University of Melbourne; Parkville Australia
| | - C.S. Tam
- Department of Haematology; Peter MacCallum Cancer Centre; East Melbourne Australia
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Woo SJ, Park S, Jeong JE, Hong Y, Ku M, Kim BY, Jang IH, Heo SC, Wang T, Kim KH, Yang J, Kim JH, Woo HY. Synthesis and Characterization of Water-Soluble Conjugated Oligoelectrolytes for Near-Infrared Fluorescence Biological Imaging. ACS Appl Mater Interfaces 2016; 8:15937-15947. [PMID: 27267787 DOI: 10.1021/acsami.6b04276] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Near-infrared (NIR) fluorophores attract increasing attention as a molecular marker (or probe) for in vivo and in vitro biological fluorescence imaging. Three types of new NIR fluorescent conjugated oligoelectrolytes (COEs: Q-FlTBTTFl, Q-FlBBTFl, and Q-FlTBBTTFl) are synthesized with quaternized ammonium ionic groups in their side-chains for water solubility. The emission wavelength is modulated in the range 600-1300 nm, by adjusting the intramolecular charge transfer in the molecular backbone based on the electron-rich fluorene (and/or thiophene) and electron-deficient benzo[2,1,3]thiadiazole (or benzo[1,2-c:4,5-c']bis[1,2,5]thiadiazole) moieties. The COEs show a remarkably larger Stokes shift (147-276 nm) compared to commercial rhodamine and cyanine dyes in water, avoiding self-quenching and interference from the excitation backscattered light. The photoluminescence (PL) quantum efficiency is improved substantially by up to 27.8% in water by fabricating a vesicular complex, COE/v, with a block ionomer, poly[(ethylene oxide)-block-(sodium 2-acrylamido-2-methyl-1-propanesulfonate)]. In vitro cellular uptake images with the COEs are obtained with good biocompatibility by confocal single-photon and two-photon microscopy. The ex vivo and in vivo images of a mouse xenograft model treated with the Q-FlBBTFl/v exhibit a substantially stronger fluorescence signal at the tumor site than at the other organs, highlighting the potential of the COE/v as an NIR fluorescent imaging agent for the diagnosis of cancer.
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Affiliation(s)
- Shin-Jae Woo
- Department of Cogno-Mechatronics Engineering, Pusan National University , Miryang 50463, Republic of Korea
| | - Sungmin Park
- Department of Chemistry, Korea University , Seoul 02841, Republic of Korea
| | - Ji-Eun Jeong
- Department of Chemistry, Korea University , Seoul 02841, Republic of Korea
| | - Yoochan Hong
- Department of Radiology, College of Medicine, Yonsei University, YUHS-KRIBB Medical Convergence Research Institute , Seoul 03722, Republic of Korea
| | - Minhee Ku
- Department of Radiology, College of Medicine, Yonsei University, YUHS-KRIBB Medical Convergence Research Institute , Seoul 03722, Republic of Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University , Seoul 03722, Republic of Korea
| | - Bo Yun Kim
- Department of Physiology, School of Medicine, Pusan National University , Yangsan 50612, Republic of Korea
| | - Il Ho Jang
- Department of Physiology, School of Medicine, Pusan National University , Yangsan 50612, Republic of Korea
| | - Soon Chul Heo
- Department of Physiology, School of Medicine, Pusan National University , Yangsan 50612, Republic of Korea
| | - Taejun Wang
- Division of Integrative Biosciences and Biotechnology, Department of Mechanical Engineering, Pohang University of Science and Technology , Pohang 37673, Republic of Korea
| | - Ki Hean Kim
- Division of Integrative Biosciences and Biotechnology, Department of Mechanical Engineering, Pohang University of Science and Technology , Pohang 37673, Republic of Korea
| | - Jaemoon Yang
- Department of Radiology, College of Medicine, Yonsei University, YUHS-KRIBB Medical Convergence Research Institute , Seoul 03722, Republic of Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University , Seoul 03722, Republic of Korea
| | - Jae Ho Kim
- Department of Physiology, School of Medicine, Pusan National University , Yangsan 50612, Republic of Korea
| | - Han Young Woo
- Department of Chemistry, Korea University , Seoul 02841, Republic of Korea
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Hong Y, Lee E, Ku M, Suh JS, Yoon DS, Yang J. Femto-molar detection of cancer marker-protein based on immuno-nanoplasmonics at single-nanoparticle scale. Nanotechnology 2016; 27:185103. [PMID: 27009431 DOI: 10.1088/0957-4484/27/18/185103] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We describe an in vitro biomarker sensor based on immuno-silver nanomarbles (iSNMs) and the nanoscattering spectrum imaging analysis system using localized surface plasmon resonance (LSPR). In particular, highly monodisperse SNMs with large figures of merit are prepared, and the sensing substrates are also fabricated using the nanoparticle adsorption method. The high sensitivity of the LSPR sensor based on an SNM is confirmed using various solvents that have different refractive indexes. For the sensitive and specific detection of epithelial cell adhesion molecules (EpCAMs) expressed on cancer cells, the surface of the SNM is conjugated with an anti-EpCAM aptamer, and molecular sensing for the EpCAM expression level is carried out using whole cell lysates from various cancer cell lines. Collectively, we have developed a biomarker-detectable LSPR sensor based on iSNMs, which allows for the sensitive and effective detection of EpCAMs at both the single-cell and femto-molar level.
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Affiliation(s)
- Yoochan Hong
- Department of Radiology, College of Medicine, Yonsei University, Seoul 03722, Korea
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Hong Y, Cho W, Kim J, Hwng S, Lee E, Heo D, Ku M, Suh JS, Yang J, Kim JH. Photothermal ablation of cancer cells using self-doped polyaniline nanoparticles. Nanotechnology 2016; 27:185104. [PMID: 27010331 DOI: 10.1088/0957-4484/27/18/185104] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Water-stable confined self-doping polyaniline nanocomplexes are successfully fabricated by nano-assembly using lauric acid both as a stabilizer and as a localized dopant. In particular, the colloidal stability of the polyaniline nanocomplexes in neutral pH and the photothermal potential by near-infrared light irradiation are characterized. We demonstrate that confined self-doping polyaniline nanocomplexes as a photothermal nanoagent are preserved in the doped state even at a neutral pH. Finally, confined self-doping polyaniline nanocomplexes aided by lauric acid are successfully applied for the photothermal ablation of cancer cells.
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Ku M, Hong Y, Heo D, Lee E, Hwang S, Suh JS, Yang J. In vivo sensing of proteolytic activity with an NSET-based NIR fluorogenic nanosensor. Biosens Bioelectron 2016; 77:471-7. [DOI: 10.1016/j.bios.2015.09.067] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 09/27/2015] [Accepted: 09/28/2015] [Indexed: 12/17/2022]
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Ku M, Kang M, Suh JS, Yang J. Effects for Sequential Treatment of siAkt and Paclitaxel on Gastric Cancer Cell Lines. Int J Med Sci 2016; 13:708-16. [PMID: 27648001 PMCID: PMC5027190 DOI: 10.7150/ijms.15501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 07/27/2016] [Indexed: 11/16/2022] Open
Abstract
Real-time screening of cellular response on the drugs could provide valuable insights for the early detection of therapeutic efficiency and the evaluation of disease progression. Cancer cells have the ability to vary widely in response to stress in a manner to adjust the signaling pathway to promote the survival or having a resistance to stimulation. Cell-based label-free technologies using electronic impedance sensor have strategies for constructing the signature profiles of each cells. To achieve exquisite sensitivity to substantially change of live-cell response have an important role that predict the potential of therapeutic effects. In this study, we use an impedance-based real-time cell analysis system to investigate dynamic phenotypes of cells described as a cellular index value. We show that gastric cancer cells generated characteristic kinetic patterns that corresponded to the treatment order of therapeutics. The kinetic feature of the cells offers insightful information that cannot be acquired from a conventional single end-point assay. Furthermore, we employ a 'sequential treatment strategy' to increase cytotoxic effects with minimizing the use of chemotherapeutics. Specifically, treatment of paclitaxel (PTX) after down-regulating Akt gene expression using RNAi reduces the cell proliferation and increases apoptosis. We propose that the sequential treatment may exhibit more effective approach rather than traditional combination therapy. Moreover, the dynamic monitoring of cell-drug interaction enables us to obtain a better understanding of the temporal effects in vitro.
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Affiliation(s)
- Minhee Ku
- Department of Radiology, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea;; Brain Korea 21 Plus Project for Medical Science, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - Myounghwa Kang
- Department of Radiology, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - Jin-Suck Suh
- Department of Radiology, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea;; Brain Korea 21 Plus Project for Medical Science, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea;; YUHS-KRIBB Medical Convergence Research Institute, Seoul 03722, Republic of Korea;; Severance Biomedical Science Institute (SBSI), Seoul 03722, Republic of Korea
| | - Jaemoon Yang
- Department of Radiology, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea;; YUHS-KRIBB Medical Convergence Research Institute, Seoul 03722, Republic of Korea
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Heo D, Lee C, Ku M, Haam S, Suh JS, Huh YM, Park SW, Yang J. Galactosylated magnetic nanovectors for regulation of lipid metabolism based on biomarker-specific RNAi and MR imaging. Nanotechnology 2015; 26:335101. [PMID: 26226410 DOI: 10.1088/0957-4484/26/33/335101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The specific delivery of ribonucleic acid (RNA) interfering molecules to disease-related cells is still a critical blockade for in vivo systemic treatment. Here, this study suggests a robust delivery carrier for targeted delivery of RNA-interfering molecules using galactosylated magnetic nanovectors (gMNVs). gMNVs are an organic-inorganic polymeric nanomaterial composed of polycationics and magnetic nanocrystal for delivery of RNA-interfering molecules and tracking via magnetic resonance (MR) imaging. In particular, the surface of gMNVs was modified by galactosylgluconic groups for targeted delivering to asialoglycoprotein receptor (ASGPR) of hepatocytes. Moreover, the small interfering RNAs were used to regulate target proteins related with low-density lipoprotein level and in vivo MR imaging was conducted for tracking of nanovectors. The obtained results show that the prepared gMNVs demonstrate potential as a systemic theragnostic nanoplatform for RNA interference and MR imaging.
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Affiliation(s)
- Dan Heo
- Department of Radiology, College of Medicine, Yonsei University, Seoul 120-752, Korea. Nanomedical National Core Research Center, Yonsei University, Seoul 120-749, Korea
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Hong Y, Hwang S, Heo D, Kim B, Ku M, Lee E, Haam S, Yoon DS, Yang J, Suh JS. A magnetic polyaniline nanohybrid for MR imaging and redox sensing of cancer cells. Nanoscale 2015; 7:1661-1666. [PMID: 25559644 DOI: 10.1039/c4nr06340f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A synthetic process for constructing an organo-metal nanohybrid is described. This process uses polyaniline as a ligand in order to fabricate magnetic nanoparticles. This nanohybrid shows imaging potential uses as a magnetic resonance imaging contrast agent and a redox-sensing probe simultaneously both in vitro and in vivo.
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Affiliation(s)
- Yoochan Hong
- Department of Biomedical Engineering, Yonsei University, Maeji 234, Heungup, Wonju, Gangwondo, Republic of Korea 220-710
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Hu F, Ku M, Markovic D, Dzaye ODA, Lehnardt S, Wolf SA, Kettenmann H, Synowitz M. P17.40 * GLIOMA ASSOCIATED MICROGLIAL MMP9 EXPRESSION IS UP REGULATED BY TLR2 SIGNALLING AND SENSITIVE TO MINOCYCLINE. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Heo D, Lee E, Ku M, Hwang S, Kim B, Park Y, Han Lee Y, Huh YM, Haam S, Cheong JH, Yang J, Suh JS. Maleimidyl magnetic nanoplatform for facile molecular MRI. Nanotechnology 2014; 25:275102. [PMID: 24960226 DOI: 10.1088/0957-4484/25/27/275102] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study, we developed the maleimidyl magnetic nanoplatform, which enables functional targeting of a biomarker-specific moiety for molecular imaging via MRI. The maleimide group of the maleimidyl magnetic nanoplatform is conjugated with a thiol group without additional crosslinkers and side products. A physicochemical analysis was conducted to verify the effectiveness of the maleimidyl magnetic nanoplatform, and the existence of the maleimidyl group was investigated using the platform. To prepare biomarker-specific MRI probes, a thiolated aptamer and peptide were immobilized onto the maleimidyl group of the maleimidyl magnetic nanoplatform. The fabricated MRI probes were applied to four cancer cell lines: HT1080, MCF7, MKN45, and HEK293T. To investigate the potential of the molecular MRI probe, the target-biomarker specificity was confirmed without serious cytotoxicity, and in vivo MRI analysis using a xenograft mouse model was demonstrated. We believe these results will be useful for fabricating molecular MRI probes for the diagnosis of cancer.
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Affiliation(s)
- Dan Heo
- Department of Radiology, Yonsei University College of Medicine, Seoul, 120-752, Republic of Korea. Nanomedical National Core Research Center, Yonsei University, Seoul, 120-749, Republic of Korea
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Hong Y, Ku M, Heo D, Hwang S, Lee E, Park J, Choi J, Jung Lee H, Seo M, Jig Lee E, In Yook J, Haam S, Huh YM, Sung Yoon D, Suh JS, Yang J. Molecular recognition of proteolytic activity in metastatic cancer cells using fluorogenic gold nanoprobes. Biosens Bioelectron 2014; 57:171-8. [DOI: 10.1016/j.bios.2014.02.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 02/05/2014] [Accepted: 02/05/2014] [Indexed: 12/19/2022]
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Hong Y, Ku M, Lee E, Suh JS, Huh YM, Yoon DS, Yang J. Localized surface plasmon resonance based nanobiosensor for biomarker detection of invasive cancer cells. J Biomed Opt 2014; 19:051202. [PMID: 24297057 DOI: 10.1117/1.jbo.19.5.051202] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 08/20/2013] [Indexed: 06/02/2023]
Abstract
In this study, we describe the development of a cancer biomarker-sensitive nanobiosensor based on localized surface plasmon resonance that enables recognition for proteolytic activity of membrane type 1 matrix metalloproteinase (MT1-MMP) anchored on invasive cancer cells. First of all, we prepared biomarker-detectable substrate based on gold nanorods (GNRs) using nanoparticle adsorption method. The sensitivity of the sensing chip was confirmed using various solvents that have different refractive indexes. Subsequently, MT1-MMP-specific cleavable peptide was conjugated onto the surface of GNRs, and molecular sensing about proteolytic activity was conducted using MT1-MMP and cell lysates. Collectively, we developed a biomarker detectable sensor, which allows for the effective detection of proteolytic activity about MT1-MMP extracted from invasive cancer cells.
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Affiliation(s)
- Yoochan Hong
- Yonsei University, Department of Biomedical Engineering, Maeji 234, Heungup, Wonju, Gangwondo 220-710, Republic of Korea
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Park J, Ku M, Kim E, Park Y, Hong Y, Haam S, Cheong JH, Park ES, Suh JS, Huh YM, Yang J. CD44-specific supramolecular hydrogels for fluorescence molecular imaging of stem-like gastric cancer cells. Integr Biol (Camb) 2013; 5:669-72. [PMID: 23403616 DOI: 10.1039/c3ib20203h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We describe a near-infrared-sensitive molecular imaging probe based on hydrogel complexes that can target a stem-like gastric cancer cell marker (CD44, a marker that often correlates with a poor prognosis in patients). Thus, CD44-targetable and near-infrared-sensitive supramolecular hydrogels (NIRSHs, Cy5.5-conjugated polyethyleneimine/hyaluronic acid polyplexes) were fabricated by polyplexing in an aqueous medium. NIRSHs demonstrated good water-stability, biocompatibility, and specificity to CD44-expressing stem-like gastric cancer cells. Furthermore, NIR-sensitive in vivo imaging potentials of CD44-targetable NIRSHs for heterotopic/orthotopic xenograft mouse models were investigated.
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Affiliation(s)
- Jungmin Park
- Department of Radiology, College of Medicine, Yonsei University, Seoul 120-752, Republic of Korea
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Fairman A, Macarthur J, Cohen J, Hiesinger W, Ku M, Shudo Y, Atluri P, Woo Y. Biochemically Engineered Stromal Cell-Derived Factor-1alpha Analog Increases Perfusion in The Ischemic Hindlimb. J Surg Res 2013. [DOI: 10.1016/j.jss.2012.10.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yang J, Lee E, Ku M, Huh YM, Cheong JH. Functional Nanoplatforms for Enhancement of Chemotherapeutic Index. Anticancer Agents Med Chem 2013; 13:212-21. [DOI: 10.2174/1871520611313020005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 05/01/2012] [Accepted: 05/06/2012] [Indexed: 11/22/2022]
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Benoiton L, Autagavaia V, Pencheva L, Perley A, Hill O, Song N, Murphy D, Sheriff A, Allbon D, Ku M, Williams MJA, Wilkins GT, Chen VHT. Use of Bivalirudin During Primary Percutaneous Coronary Intervention for Acute St Elevation Myocardial Infarction. Heart Lung Circ 2010. [DOI: 10.1016/j.hlc.2010.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Pak VV, Ku M, Li N, Kim MS, Kasymova TD, Kwon DY. Structures of the Peptide Leu-Pro-Tyr-Pro and Its Derivatives and the Nicotinamide Part of NADPH by a Semi-Empirical PM3 Method. Chem Nat Compd 2005. [DOI: 10.1007/s10600-005-0077-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Rodríguez MC, Margos G, Compton H, Ku M, Lanz H, Rodríguez MH, Sinden RE. Plasmodium berghei: routine production of pure gametocytes, extracellular gametes, zygotes, and ookinetes. Exp Parasitol 2002; 101:73-6. [PMID: 12243741 DOI: 10.1016/s0014-4894(02)00035-8] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- M C Rodríguez
- Infection and Immunity Section, Imperial College of Science Technology and Medicine, Department of Biology, Alexander Fleming Building, Imperial College Road, London SW7 2AZ, UK.
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Ku M. Austrian universities. Scientists spar over reform plan. Science 2001; 292:1625-6. [PMID: 11387446 DOI: 10.1126/science.292.5522.1625a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Ku M. Swiss science. New program draws praise, complaints. Science 2001; 291:964. [PMID: 11232571 DOI: 10.1126/science.291.5506.964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Abstract
The micronuclear DNA of Paramecium tetraurelia is estimated to contain over 50,000 short DNA elements that are precisely removed during the formation of the transcriptionally active macronucleus. Each internal eliminated sequence (IES) is bounded by 5'-TA-3' dinucleotide repeats, a feature common to some classes of DNA transposons. We have developed an in vivo assay to analyze these highly efficient and precise DNA excision events. The microinjection of a cloned IES into mating cells results in accurately spliced products, and the transformed cells maintain the injected DNA as extrachromosomal molecules. A series of deletions flanking one side of a 28-bp IES were constructed and analyzed with the in vivo assay. Whereas 72 bp of DNA flanking the eliminated region is sufficient for excision, lengths of 31 and 18 bp result in reduced excision and removal of all wild-type sequences adjacent to the TA results in complete failure of excision. In contrast, nucleotide mutations within the middle of the 28-bp IES do not prevent excision. The results are consistent with a functional role for perfect inverted repeats flanking the IES.
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Affiliation(s)
- M Ku
- Department of Biochemistry, Purdue University, West Lafayette, Indiana 47907, USA
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Chow J, Munro C, Wong M, Gonzalez N, Ku M, Neville S, Munro R, Hall B, Cleland B, Howlin K, Suranyi MG. HomeChoice automated peritoneal dialysis machines: the impact of reuse of tubing and cassettes. Perit Dial Int 2000; 20:336-8. [PMID: 10898052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Affiliation(s)
- J Chow
- Renal Unit, Liverpool Hospital, South Western Area Pathology Service, South Western Sydney Area Health Service, New South Wales, Australia.
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Abstract
We have isolated and characterized a novel Xenopus wnt gene, Xwnt-11, whose expression pattern and overexpression phenotype suggest that it may be important for dorsal-ventral axis formation. Xwnt-11 mRNA is present during oogenesis and embryonic development through swimming tadpole stages. Xwnt-11 mRNA is ubiquitous in early oocytes and is localized during mid-oogenesis. By late oocyte stages, Xwnt-11 mRNA is localized to the vegetal cortex, with some mRNA in the vegetal cytoplasm. After egg maturation, Xwnt-11 mRNA is released from the vegetal cortex and is found in the vegetal cytoplasm. This early pattern of Xwnt-11 mRNA localization is similar to another vegetally localized maternal mRNA, Vg1 (D. A. Melton (1987) Nature 328, 80–82). In the late blastula, Xwnt-11 mRNA is found at high levels in the dorsal marginal zone. As gastrulation proceeds, Xwnt-11 mRNA appears in the lateral and ventral marginal zone and, during tadpole stages, it is found in the somites and first branchial arch. Injection of Xwnt-11 mRNA into UV-ventralized embryos can substantially rescue the UV defect by inducing the formation of dorsal tissues. The rescued embryos develop somitic muscle and neural tube; however, they lack notochord and anterior head structures.
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Affiliation(s)
- M Ku
- Department of Biochemistry and Molecular Biology, Harvard University, Cambridge, MA 02138
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Steinbeisser H, De Robertis EM, Ku M, Kessler DS, Melton DA. Xenopus axis formation: induction of goosecoid by injected Xwnt-8 and activin mRNAs. Development 1993; 118:499-507. [PMID: 7900991 DOI: 10.1242/dev.118.2.499] [Citation(s) in RCA: 55] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In this study, we compare the effects of three mRNAs-goosecoid, activin and Xwnt-8- that are able to induce partial or complete secondary axes when injected into Xenopus embryos. Xwnt-8 injection produces complete secondary axes including head structures whereas activin and goosecoid injection produce partial secondary axes at high frequency that lack head structures anterior to the auditory vesicle and often lack notochord. Xwnt-8 can activate goosecoid only in the deep marginal zone, i.e., in the region in which this organizer-specific homeobox gene is normally expressed on the dorsal side. Activin B mRNA, however, can turn on goosecoid in all regions of the embryo. We also tested the capacity of these gene products to restore axis formation in embryos in which the cortical rotation was blocked by UV irradiation. Whereas Xwnt-8 gives complete rescue of anterior structures, both goosecoid and activin give partial rescue. Rescued axes including hindbrain structures up to level of the auditory vesicle can be obtained at high frequency even in the absence of notochord structures. The possible functions of Wnt-like and activin-like signals and of the goosecoid homeobox gene, and their order of action in the formation of Spemann's organizer are discussed.
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Affiliation(s)
- H Steinbeisser
- Molecular Biology Institute, University of California, Los Angeles 90024-1737
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Lee JM, Ku M, Haberer SA. The bovine pericardial xenograft: III. Effect of uniaxial and sequential biaxial stress during fixation on the tensile viscoelastic properties of bovine pericardium. J Biomed Mater Res 1989; 23:491-506. [PMID: 2715162 DOI: 10.1002/jbm.820230504] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Our previous two articles have shown that glutaraldehyde-fixed bovine pericardium is nearly isotropic, whether fixed without constraints, with tethering, or with pressure. In this study, we have used uniaxial stress during fixation to produce bovine pericardial material with marked tensile anisotropy. Rectangular and cruciate pericardial samples have been mechanically examined after one of four treatments: (i) fixation under 88-kPa uniaxial stress, (ii) fixation under 176-kPa uniaxial stress, (iii) 3 h of 176-kPa uniaxial stress in saline followed by 24-h fixation under the same stress, (iv) fixation under 176-kPa uniaxial stress followed by a second fixation under 176-kPa stress in a direction normal to the first. Strips of material were cut at 0 degree, 30 degrees, 60 degrees, and 90 degrees to direction of the initial stress, and tested for response to cyclic loading, stress relaxation, plastic deformation, and fracture properties. Fixation under uniaxial stress produced anistropy similar to that seen in porcine aortic valve leaflets; however, the overall extensibility of the material depended on the applied stress and the aspect ratio of the stressed sample. While loading in saline produced no change, the sequential biaxial stressing produced a reduction in anisotropy, suggesting exposure of additional crosslinking sites. Uniaxial stress during fixation may be a useful method for construction of anisotropic heart valve leaflets.
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Affiliation(s)
- J M Lee
- Centre for Biomaterials, University of Toronto, Ontario, Canada
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