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Chang CC, Yang CH, Chuang CH, Jiang SJ, Hwang YM, Liou JW, Hsu HJ. A peptide derived from interleukin-10 exhibits potential anticancer activity and can facilitate cell targeting of gold nanoparticles loaded with anticancer therapeutics. Commun Chem 2023; 6:278. [PMID: 38102207 PMCID: PMC10724200 DOI: 10.1038/s42004-023-01079-x] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 12/01/2023] [Indexed: 12/17/2023] Open
Abstract
Human interleukin-10 (IL-10) is an immunosuppressive and anti-inflammatory cytokine, and its expression is upregulated in tumor tissues and serum samples of patients with various cancers. Because of its immunosuppressive nature, IL-10 has also been suggested to be a factor leading to tumor cells' evasion of immune surveillance and clearance by the host immune system. In this study, we refined a peptide with 20 amino acids, named NK20a, derived from the binding region of IL-10 on the basis of in silico analysis of the complex structure of IL-10 with IL-10Ra, the ligand binding subunit of the IL-10 receptor. The binding ability of the peptide was confirmed through in vitro biophysical biolayer interferometry and cellular experiments. The IL-10 inhibitory peptide exerted anticancer effects on lymphoma B cells and could abolish the suppression effect of IL-10 on macrophages. NK20a was also conjugated with gold nanoparticles to target the chemotherapeutic 5-fluorouracil (5-FU)-loaded nanoparticles to enhance the anticancer efficacy of 5-FU against the breast cancer cell line BT-474. Our study demonstrated that NK20a designed in silico with improved binding affinity to the IL-10 receptor can be used as a tool in developing anticancer strategies.
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Affiliation(s)
- Chun-Chun Chang
- Department of Laboratory Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, 97004, Taiwan, ROC
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, 97004, Taiwan, ROC
| | - Chin-Hao Yang
- Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien, 97004, Taiwan, ROC
| | - Chin-Hsien Chuang
- Department of Biomedical Sciences and Engineering, College of Medicine, Tzu Chi University, Hualien, 97004, Taiwan, ROC
| | - Shinn-Jong Jiang
- Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien, 97004, Taiwan, ROC
| | - Yin-Min Hwang
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, 97004, Taiwan, ROC
| | - Je-Wen Liou
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, 97004, Taiwan, ROC.
- Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien, 97004, Taiwan, ROC.
| | - Hao-Jen Hsu
- Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien, 97004, Taiwan, ROC.
- Department of Biomedical Sciences and Engineering, College of Medicine, Tzu Chi University, Hualien, 97004, Taiwan, ROC.
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Choi Y, Kim SH, Kim SH, Kim JY, Kim YR, Kim TS, Hwang YM, Kim JH, Jang SW, Rho TH, Lee MY, Oh YS. P1902Terminating the induced atrial tachyarrhythmia after complete pulmonary vein isolation during catheter ablation for persistent atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1902] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y Choi
- Seoul St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - S H Kim
- Seoul St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - S H Kim
- Seoul St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J Y Kim
- Uijeongbu St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Uijeongbu, Korea Republic of
| | - Y R Kim
- St.Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Incheon, Korea Republic of
| | - T S Kim
- Daejeon St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Daejeon, Korea Republic of
| | - Y M Hwang
- St. Vincent's Hospital, Division of Cardiology, Department of Internal Medicine, Suwon, Korea Republic of
| | - J H Kim
- St. Vincent's Hospital, Division of Cardiology, Department of Internal Medicine, Suwon, Korea Republic of
| | - S W Jang
- St.Paul's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - T H Rho
- St.Paul's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - M Y Lee
- Seoul St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - Y S Oh
- Seoul St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
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Kim YR, Jang SW, Hwang YM, Kim JY, Kim TS, Kim SH, Kim JH, Oh YS, Lee MY, Rho TH. P397Long-term clinical outcomes of misdosing NOACs in patients with atrial fibrillation. Europace 2018. [DOI: 10.1093/europace/euy015.208] [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: 11/13/2022] Open
Affiliation(s)
- Y R Kim
- The Catholic University of Korea Incheon St. Mary's Hospital, Internal Medicine, Incheon, Korea Republic of
| | - S W Jang
- The Catholic University of Korea, Seoul, Korea Republic of
| | - Y M Hwang
- The Catholic University of Korea, Seoul, Korea Republic of
| | - J Y Kim
- The Catholic University of Korea, Seoul, Korea Republic of
| | - T S Kim
- The Catholic University of Korea, Seoul, Korea Republic of
| | - S H Kim
- The Catholic University of Korea, Seoul, Korea Republic of
| | - J H Kim
- The Catholic University of Korea, Seoul, Korea Republic of
| | - Y S Oh
- The Catholic University of Korea, Seoul, Korea Republic of
| | - M Y Lee
- The Catholic University of Korea, Seoul, Korea Republic of
| | - T H Rho
- The Catholic University of Korea, Seoul, Korea Republic of
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Park H, Kim J, Hwang YM, Choi KO. Neutron spectrum at the underground laboratory for the ultra low background experiment. Appl Radiat Isot 2013; 81:302-6. [PMID: 23570953 DOI: 10.1016/j.apradiso.2013.03.068] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Accepted: 03/12/2013] [Indexed: 11/29/2022]
Abstract
We measured the background neutron spectrum using a Bonner sphere spectrometer at the YangYang underground laboratory, where the vertical earth overburden is approximately 700 m. The neutron fluence rate and the energy spectrum were determined through the unfolding procedure. The measured neutron fluence rate was (0.242 ± 0.008) n cm(-2)h(-1) for k=1, and most of the neutrons were below 20 MeV.
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Affiliation(s)
- Hyeonseo Park
- Korea Research Institute of Standards and Science, Daejeon 305-340, Republic of Korea.
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Lee HK, Kim JS, Hwang YM, Lee MJ, Choi CG, Suh DC, Lim TH. Location of the primary motor cortex in schizencephaly. AJNR Am J Neuroradiol 1999; 20:163-6. [PMID: 9974075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
BACKGROUND AND PURPOSE Functional reorganization of the brain can result from congenital brain disorders as well as from brain infarction. The purpose of our study was to use functional MR imaging to determine whether reorganization of brain function occurs in patients with schizencephaly. METHODS Four patients with schizencephaly (three right-handed, one ambidextrous) presented with seizures. Associated lesions included agenesis of the corpus callosum (n = 1) and absence of the septum pellucidum (n = 1). Functional MR imaging was performed in each patient using a single-section fast low-angle shot (FLASH) blood oxygen level-dependent (BOLD) technique at 1.5 T in a standard head coil. The motor cortex was initially identified on an axial T1-weighted anatomic image. Thirty consecutive images were obtained during a motor task consisting of repetitive finger-to-thumb opposition. The percentage of change in increased signal intensity was calculated for the primary motor area. An ipsilateral activation index was used to compare the affected with the unaffected hemisphere. RESULTS The percentage of change in increased signal intensity in the area of activation ranged from 4.8% +/- 0.9 to 9.2% +/- 1.2 (mean, 5.6% +/- 1.5). The ipsilateral activation index in the affected hemisphere was 0.00 to 0.38, whereas that in the unaffected hemisphere was 15.4 to infinity. The difference in the ipsilateral activation index between each hemisphere was considered significant. CONCLUSION Our results showed increased activation in the unaffected hemisphere in patients with schizencephaly, which may reflect functional reorganization of the motor area in patients with this congenital disorder.
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Affiliation(s)
- H K Lee
- Department of Radiology, Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Abstract
We describe six men with a slowly progressive myelopathy characterized by asymmetric, incomplete spinal cord syndrome manifested with a thoracic sensory level, mild spastic paraparesis, and urinary incontinence. The spinal cord lesions were evident by MRI in four of them. Coxiella burnetii infection was confirmed in the blood of all patients by immunofluorescence microscopic assay (IFA) and transmission electron microscopy (TEM). In two patients, we detected C burnetii by TEM and IFA using CSF from the patients inoculated onto fresh peripheral blood lymphocyte. Four patients, treated with appropriate antibiotics, responded either with partial resolution of symptoms or arrest of further neurologic progression. In three, the MRI lesions decreased in size.
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Affiliation(s)
- Y M Hwang
- Department of Neurology, Asan Medical Center, Ulsan University, Seoul, Korea
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Abstract
A previously healthy woman had a prolonged amnestic state caused by complex partial status epilepticus with bilateral mesiotemporal lobe involvement confirmed by EEG with nasopharyngeal electrodes. A magnetic resonance imaging (MRI) scan obtained shortly after recovery from the amnesia showed reversible focal abnormalities consisting of increased signal intensity on T2-weighted scan in the mesiotemporal lobe.
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Affiliation(s)
- B I Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
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Abstract
A 33-year-old man developed a progressive myelopathy after a characteristic skin lesion of herpes zoster involving the right C3 and C4 dermatomes. The lesions were recognizable in the T2-weighted image of the magnetic resonance imaging (MRI) as increased signal intensities throughout the long segments of the spinal cord with maximal in the cervical portion, which was compatible with the pathological findings reported in autopsy studies.
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Affiliation(s)
- Y M Hwang
- Department of Neurology, Asan Medical Center, Ulsan University, Seoul, Korea
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Hwang YM, Sunwoo IN, Chung IH, Jung B. Comparison between electrophysiologic and morphologic changes in lead induced peripheral neuropathy in rats. J Korean Med Sci 1989; 4:185-92. [PMID: 2561732 PMCID: PMC3053701 DOI: 10.3346/jkms.1989.4.4.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Compound nerve action potential (CNAP) of the mixed peripheral nerve is composed of A alpha beta, A delta, and C potentials. All components of CNAPs in the sciatic nerve were recorded by stimulating the tibial nerve of both control and lead-poisoned rats. Marked decrease of nerve conduction velocity and prolonged duration were found in A alpha beta and A delta fibers especially in large myelinated A alpha beta fibers. The amplitude decreased in A alpha beta potential, but the area did not change. In C potential produced by activation of unmyelinated fibers, nerve conduction velocity slightly decreased, but the amplitude and area did not significantly change. Pathologic correlates revealed prominent segmental demyelination with significant decrease of large myelinated fiber densities. Minimal axonal degeneration of unmyelinated fibers was present. We can conclude that electrophysiologic changes in the lead-poisoned rats correlate with pathologic changes in them.
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Affiliation(s)
- Y M Hwang
- Department of Neurology, Asan Medical Center, Ulsan University College of Medicine, Korea
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