1
|
Han GR, Lim E, Kang J, Hwang D, Heo J, Kim SK, Lee JW. Alcoholic Solvent-Mediated Excited-State Proton Transfer Dynamics of a Novel Dihydroxynaphthalene Dye. J Phys Chem A 2023; 127:7884-7891. [PMID: 37723599 DOI: 10.1021/acs.jpca.3c03170] [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: 09/20/2023]
Abstract
The excited-state proton transfer (ESPT) reaction is an important primary photochemical process because it is closely related to photophysical properties. Although ESPT research in aqueous solutions is predominant, alcoholic solvent-mediated ESPT studies are also significant in terms of photoacid-based reactions. Especially, the research for dihydroxynaphthalenes (DHNs) has been largely neglected due to the challenging data interpretation of two hydroxyl groups. A novel fluorescent dye, resveratrone, synthesized by light irradiation of resveratrol, which is famous for its antioxidant properties, can be regarded as a type of DHN, and it has distinctive optical properties, including high quantum yield, a large two-photon absorption coefficient, a large Stokes shift, and very high biocompatibility. In this study, we investigate the overall kinetics of the optical properties of resveratrone and find evidence for alcoholic solvent-mediated ESPT involvement in the radiative properties of resveratrone with a large Stokes shift. Our investigation provides an opportunity to revisit the overlooked photophysical properties of intriguing photoacid behavior and the large Stokes shift of the dihydroxynaphthalene dye.
Collapse
Affiliation(s)
- Gi Rim Han
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Eunhak Lim
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Jooyeon Kang
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Doyk Hwang
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Jiyoung Heo
- Department of Green Chemical Engineering, Sangmyung University, Chungnam 31066, Republic of Korea
| | - Seong Keun Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Jong Woo Lee
- Department of Applied Chemistry, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 02504, Republic of Korea
| |
Collapse
|
2
|
Jeong C, Yun J, Heo J, Kim NJ. Anisotropic circular dichroism of jet-cooled chiral molecules. Phys Chem Chem Phys 2023; 25:22644-22649. [PMID: 37591819 DOI: 10.1039/d3cp03074a] [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: 08/19/2023]
Abstract
Anisotropic circular dichroism (CD) refers to the CD of oriented molecules, which varies with the direction of light propagation toward the molecules. Thus, anisotropic CD spectroscopy has been used to investigate the orientations of molecules in anisotropic media such as liquid crystals and thin films. However, it is unclear whether anisotropic CD results from isolated chromophores or their intermolecular interactions with other atoms or molecules that form anisotropically aligned structures. Herein, anisotropic CD of isolated chiral molecules was observed for the first time. The resonant two-photon ionization CD spectra of jet-cooled pseudoephedrine and styrene oxide indicated a difference between the CD values of the P/R and Q branches of the origin bands of the S0-S1 transition. This difference may have resulted from the anisotropic CD phenomena of these molecules, which are oriented via photoselection. Although jet-cooled molecules may have nearly random orientations, those excited to the P/R or Q branch become oriented because the transition probability to these branches depends on the molecular orientation relative to the direction of light propagation. These results demonstrate that the CD spectra of cold, isolated molecules, such as those in an interstellar medium, may exhibit anisotropic CD values.
Collapse
Affiliation(s)
- Changseop Jeong
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea.
| | - Jiyeon Yun
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea.
| | - Jiyoung Heo
- Department of Green Chemical Engineering, Sangmyung University, Chungnam 31066, Korea.
| | - Nam Joon Kim
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea.
| |
Collapse
|
3
|
Eun HJ, Ishiuchi SI, Yoo IT, Heo J, Park JW, Fujii M, Kim NJ. Cryogenic Ion Spectroscopy of Protonated and Sodiated Methyladenine Derivatives. J Phys Chem A 2023; 127:2472-2480. [PMID: 36895090 DOI: 10.1021/acs.jpca.2c09083] [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: 03/11/2023]
Abstract
Ultraviolet photodissociation (UVPD) spectra of protonated 9-methyladenine (H+9MA), protonated 7-methyl adenine (H+7MA), protonated 3-methyladenine (H+3MA), and sodiated 7-methyladenine (Na+7MA) near the origin bands of the S0-S1 transition were obtained using cryogenic ion spectroscopy. The UV-UV hole burning, infrared (IR) ion-dip, and IR-UV double resonance spectra showed that all the ions were present as single isomers in a cryogenic ion trap. The UVPD spectrum of H+9MA exhibited only a broad absorption band, whereas the spectra of H+7MA, H+3MA, and Na+7MA displayed moderately or well-resolved vibronic bands. Potential energy profiles were computed to understand the reason for the different bandwidths of the vibronic bands in the spectra. The broadening of the bands was correlated with the slopes between the Franck-Condon point and the conical intersection between the S1 and S0 states in the potential energy profiles, thus reflecting the deactivation rates in the S1 state.
Collapse
Affiliation(s)
- Han Jun Eun
- Gas Metrology Group, Division of Chemical and Biological Metrology, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Korea
| | - Shun-Ichi Ishiuchi
- Department of Chemistry, Tokyo Institute of Technology, Ookayama 2-12-1, Tokyo 152-8550, Japan
| | - Il Tae Yoo
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea
| | - Jiyoung Heo
- Department of Green Chemical Engineering, Sangmyung University, Chungnam 31066, Korea
| | - Jae Woo Park
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea
| | - Masaaki Fujii
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, Nagatsuta-cho, Yokohama 226-8503, Japan
| | - Nam Joon Kim
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea
| |
Collapse
|
4
|
Jeong C, Mishra KK, Yun J, Heo J, Kim NJ. Polarization dependence of the resonant
two‐photon
ionization spectra of
jet‐cooled
(1R,2R)‐(−)‐pseudoephedrine. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Changseop Jeong
- Department of Chemistry Chungbuk National University Chungbuk Korea
| | - Kamal K. Mishra
- Department of Chemistry Chungbuk National University Chungbuk Korea
| | - Jiyeon Yun
- Department of Chemistry Chungbuk National University Chungbuk Korea
| | - Jiyoung Heo
- Department of Green Chemical Engineering Sangmyung University Chungnam Korea
| | - Nam Joon Kim
- Department of Chemistry Chungbuk National University Chungbuk Korea
| |
Collapse
|
5
|
Bae Y, Heo J, Chung Y, Shin SY, Lee SW. Effect of total cholesterol level variabilities on cerebrovascular disease. Eur Rev Med Pharmacol Sci 2022; 26:544-557. [PMID: 35113431 DOI: 10.26355/eurrev_202201_27882] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE Hyperlipidemia is a risk factor of cerebrovascular disease (CVD). However, the relationship between CVD and cholesterol variability is less clear. This study assesses the relationship between cholesterol change and CVD risk. PATIENTS AND METHODS We reviewed 480,830 people from 20 to 99 years with 2 health check-ups from 2002 to 2015 from the Korean National Health Insurance (KNHI) database. People's baseline and follow-up cholesterol levels were classified into low (<180 mg/dL), moderate (≥180 mg/dL and <240 mg/dL), and high (≥240 mg/dL). Participants were divided into 9 groups (low-to-low, low-to-moderate, low-to-high, moderate-to-low, moderate-to-moderate, moderate-to-high, high-to-low, high-to-moderate, high-to-high). RESULTS Low to high cholesterol level is associated with hemorrhagic stroke (aHR1 = 1.59; 95% CI 1.12-2.28 and aHR2 = 1.56; 95% CI 1.07-2.25). Low to moderate/high cholesterol level is associated with ischemic stroke and occlusion/stenosis (for low to moderate, aHR1 = 1.11; 95% CI 1.04-1.17 and aHR2 = 1.14; 95% CI 1.07-1.21 for ischemic stroke and aHR1 = 1.18; 95% CI 1.07-1.29 and aHR2 = 1.20; 95% CI 1.08-1.32 for occlusion/stenosis, for low to high, aHR1 = 1.42; 95% CI 1.20-1.67 and aHR2 = 1.28; 95% CI 1.08-1.52 for ischemic stroke and aHR1 = 1.86; 95% CI 1.46-2.36 and aHR2= 1.74; 95% CI 1.36-2.23 for occlusion/stenosis). Moderate to high cholesterol level is associated with ischemic stroke and occlusion/stenosis (for ischemic stroke, aHR1 = 1.12; 95% CI 1.05-1.20 and aHR2 = 1.10; 95% CI 1.03-1.17, for occlusion/stenosis, aHR1 = 1.21; 95% CI 1.10-1.33 and aHR2 = 1.19; 95% CI 1.08-1.32). Moderate to low cholesterol level is associated with ischemic and hemorrhagic stroke and occlusion/stenosis (for ischemic, aHR1 = 1.15; 95% CI 1.09-1.21, for hemorrhagic, aHR1 = 1.14; 95% CI 1.01-1.28, for occlusion/stenosis, aHR1 = 1.14; 95% CI 1.05-1.23). High to low cholesterol level is associated with ischemic stroke and occlusion/stenosis (for ischemic stroke, aHR1 = 1.51; 95% CI 1.33-1.71 and aHR2 = 1.20; 95% CI 1.05-1.36, for occlusion/stenosis, aHR1 = 1.50; 95% CI 1.24-1.81). CONCLUSIONS Our study shows that cholesterol changes, especially larger changes, lead to an increase in CVD, which demonstrates that cholesterol variability may increase CVD.
Collapse
Affiliation(s)
- Y Bae
- Department of Neurosurgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | | | | | | | | |
Collapse
|
6
|
Yoo IT, Eun HJ, Min A, Jeon CW, Jeong J, Heo J, Kim NJ. Ultraviolet photodissociation circular dichroism spectroscopy of protonated L-phenylalanyl-L-alanine in a cryogenic ion trap. Phys Chem Chem Phys 2021; 23:24180-24186. [PMID: 34676382 DOI: 10.1039/d1cp04030h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We obtained ultraviolet photodissociation (UVPD) circular dichroism (CD) spectra of protonated L-phenylalanyl-L-alanine (L-H+PheAla) near the origin band of the S0-S1 transition using cryogenic ion spectroscopy. Infrared (IR) ion-dip, IR-UV hole burning (HB) and UV-UV HB spectra showed that L-H+PheAla existed as two different conformers in a cryogenic ion trap, and they had nearly identical peptide backbones but different conformations in the Phe side chain. The UVPD CD spectra revealed that the two conformers had opposite CD signs and significantly different CD magnitudes from each other. These results demonstrate that the CD value of L-H+PheAla near the origin band is strongly influenced by the conformation of the Phe side chain.
Collapse
Affiliation(s)
- Il Tae Yoo
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea.
| | - Han Jun Eun
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea.
| | - Ahreum Min
- Department of Chemistry (BK21 +) and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - Chang Wook Jeon
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea.
| | - Jinho Jeong
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea.
| | - Jiyoung Heo
- Department of Green Chemical Engineering, Sangmyung University, Chungnam 31066, Korea
| | - Nam Joon Kim
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea.
| |
Collapse
|
7
|
Heo J, Kim Y, Lee J, Lee S, Shin S, Lee Y, Kim S, Choi J, Kim S. 756P Efficacy of circulating tumor DNA (ctDNA) analysis in the early detection of ovarian cancer progression. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1198] [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: 10/20/2022] Open
|
8
|
Park JH, Jiang Y, Zhou J, Gong H, Mohapatra A, Heo J, Gao W, Fang RH, Zhang L. Genetically engineered cell membrane-coated nanoparticles for targeted delivery of dexamethasone to inflamed lungs. Sci Adv 2021; 7:eabf7820. [PMID: 34134990 PMCID: PMC8208717 DOI: 10.1126/sciadv.abf7820] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 05/04/2021] [Indexed: 05/15/2023]
Abstract
As numerous diseases are associated with increased local inflammation, directing drugs to the inflamed sites can be a powerful therapeutic strategy. One of the common characteristics of inflamed endothelial cells is the up-regulation of vascular cell adhesion molecule-1 (VCAM-1). Here, the specific affinity between very late antigen-4 (VLA-4) and VCAM-1 is exploited to produce a biomimetic nanoparticle formulation capable of targeting inflammation. The plasma membrane from cells genetically modified to constitutively express VLA-4 is coated onto polymeric nanoparticle cores, and the resulting cell membrane-coated nanoparticles exhibit enhanced affinity to target cells that overexpress VCAM-1 in vitro. A model anti-inflammatory drug, dexamethasone, is encapsulated into the nanoformulation, enabling improved delivery of the payload to inflamed lungs and significant therapeutic efficacy in vivo. Overall, this work leverages the unique advantages of biological membrane coatings to engineer additional targeting specificities using naturally occurring target-ligand interactions.
Collapse
Affiliation(s)
- Joon Ho Park
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Yao Jiang
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Jiarong Zhou
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Hua Gong
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Animesh Mohapatra
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Jiyoung Heo
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Weiwei Gao
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Ronnie H Fang
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA.
| | - Liangfang Zhang
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA.
| |
Collapse
|
9
|
Abstract
The natural world has provided a host of materials and inspiration for the field of nanomedicine. By taking design cues from naturally occurring systems, the nanoengineering of advanced biomimetic platforms has significantly accelerated over the past decade. In particular, the biomimicry of bacteria, with their motility, taxis, immunomodulation, and overall dynamic host interactions, has elicited substantial interest and opened up exciting avenues of research. More recently, advancements in genetic engineering have given way to more complex and elegant systems with tunable control characteristics. Furthermore, bacterial derivatives such as membrane ghosts, extracellular vesicles, spores, and toxins have proven advantageous for use in nanotherapeutic applications, as they preserve many of the features from the original bacteria while also offering distinct advantages. Overall, bacteria-inspired nanomedicines can be employed in a range of therapeutic settings, from payload delivery to immunotherapy, and have proven successful in combatting both cancer and infectious disease.
Collapse
Affiliation(s)
- Maya Holay
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Zhongyuan Guo
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Jessica Pihl
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Jiyoung Heo
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Joon Ho Park
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Ronnie H. Fang
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Liangfang Zhang
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| |
Collapse
|
10
|
Lim E, Heo J, Zhang X, Bowen KH, Lee SH, Kim SK. Anionic Activation of CO 2 via (M n-CO 2) - Complex on Magic-Numbered Anionic Coinage Metal Clusters M n- (M = Cu, Ag, Au). J Phys Chem A 2021; 125:2243-2248. [PMID: 33721997 DOI: 10.1021/acs.jpca.0c10867] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Given the immense challenge of excessive accumulation of carbon dioxide (CO2) in the earth's atmosphere, an extensive search is under way to convert atmospheric CO2 to compounds of more utility. With CO2 being thermodynamically extremely stable, activation of CO2 is the first and most important step toward its chemical conversion. Building upon our earlier model for the anionic activation of CO2 with azabenzene and inspired by the work of others on metal atom-CO2 complexes, we investigated the possibility of anionic activation of CO2 on small anionic metal clusters, which would have implications for catalytic conversion of CO2 on metal surfaces with atomic-scale structural irregularities. We carried out theoretical calculations using density functional theory to examine small anionic metal clusters of Cu, Ag, and Au to check whether they form a complex with CO2, with the sign of CO2 being chemically activated. We found that a class of anionic metal clusters Mn- with 1, 2, and 6 atoms consistently produced the activated complex (Mn-CO2)- for all three metals. There exists a strong interaction between the CO2 moiety and Mn- via a partially covalent M-C bond with a full delocalization of the electronic charge, as a result of electron transfer from the HOMO of Mn- to the LUMO of CO2 as in metal-CO2 π-backbonding. We examined the interaction of frontier orbitals from the viewpoints of the orbital geometry and orbital energetics and found that the above magic numbers are consistent with both aspects.
Collapse
Affiliation(s)
- Eunhak Lim
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Jiyoung Heo
- Department of Green Chemical Engineering, Sangmyung University, Chungnam 31066, Korea
| | - Xinxing Zhang
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Kit H Bowen
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Sang Hak Lee
- Department of Chemistry, Pusan National University, Busan 46241, Korea
| | - Seong Keun Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Korea
| |
Collapse
|
11
|
Eun HJ, Ishiuchi SI, Baek JY, Lee S, Heo J, Fujii M, Kim NJ. Cryogenic ion spectroscopy of adenine complexes containing alkali metal cations. Phys Chem Chem Phys 2021; 23:6783-6790. [PMID: 33720244 DOI: 10.1039/d1cp00312g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cryogenic ion spectroscopy was used to characterize adenine complexes containing alkali metal cations (M+A, M = Cs, Rb, K, Na, and Li) produced by electrospray ionization. The ultraviolet (UV) photodissociation spectra of the complexes stored in a cryogenic ion trap exhibited well-resolved vibronic bands near their origin bands of the S0-S1 transition. The UV-UV hole-burning and infrared ion-dip spectra showed that all the M+A ions in the ion trap were single isomers of M+A7a, where the M+ ion was not bound to canonical 9H-adenine (A9) but bound to a rare tautomer, 7H-adenine (A7). Density functional theory calculations showed lower tautomerization barriers for M+A9 than for bare A9 in aqueous solution. We suggest that M+ ions not only play a catalytic role in the tautomerization of A9 to A7 but also increase the tautomerization yield by forming stable M+A7a isomers.
Collapse
Affiliation(s)
- Han Jun Eun
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea.
| | | | | | | | | | | | | |
Collapse
|
12
|
Lanfredini M, Bestion D, D'Auria F, Aksan N, Fillion P, Gaillard P, Heo J, Karppinen I, Kim K, Kurki J, Liu L, Shen A, Vacher JL, Wang D. Critical flow prediction by system codes – Recent analyses made within the FONESYS network. Nuclear Engineering and Design 2020. [DOI: 10.1016/j.nucengdes.2020.110731] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
13
|
Jiang Y, Krishnan N, Heo J, Fang RH, Zhang L. Nanoparticle-hydrogel superstructures for biomedical applications. J Control Release 2020; 324:505-521. [PMID: 32464152 PMCID: PMC7429280 DOI: 10.1016/j.jconrel.2020.05.041] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/23/2020] [Accepted: 05/25/2020] [Indexed: 12/13/2022]
Abstract
The incorporation of nanoparticles into hydrogels yields novel superstructures that have become increasingly popular in biomedical research. Each component of these nanoparticle-hydrogel superstructures can be easily modified, resulting in platforms that are highly tunable and inherently multifunctional. The advantages of the nanoparticle and hydrogel constituents can be synergistically combined, enabling these superstructures to excel in scenarios where employing each component separately may have suboptimal outcomes. In this review, the synthesis and fabrication of different nanoparticle-hydrogel superstructures are discussed, followed by an overview of their use in a range of applications, including drug delivery, detoxification, immune modulation, and tissue engineering. Overall, these platforms hold significant clinical potential, and it is envisioned that future development along these lines will lead to unique solutions for addressing areas of pressing medical need.
Collapse
Affiliation(s)
- Yao Jiang
- Department of NanoEngineering, Chemical Engineering Program, Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Nishta Krishnan
- Department of NanoEngineering, Chemical Engineering Program, Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Jiyoung Heo
- Department of NanoEngineering, Chemical Engineering Program, Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Ronnie H Fang
- Department of NanoEngineering, Chemical Engineering Program, Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA.
| | - Liangfang Zhang
- Department of NanoEngineering, Chemical Engineering Program, Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA.
| |
Collapse
|
14
|
Hossain M, Park DS, Rahman MS, Ki SJ, Lee YR, Imran KM, Yoon D, Heo J, Lee TJ, Kim YS. Bifidobacterium longum DS0956 and Lactobacillus rhamnosus DS0508 culture-supernatant ameliorate obesity by inducing thermogenesis in obese-mice. Benef Microbes 2020; 11:361-373. [PMID: 32755263 DOI: 10.3920/bm2019.0179] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 12/14/2022]
Abstract
Excessive body fat and the related dysmetabolic diseases affect both developed and developing countries. The aim of this study was to investigate the beneficial role of a bacterial culture supernatant (hereafter: BS) of Lactobacillus and Bifidobacterium and their potential mechanisms of action on white-fat browning and lipolysis. For selection of four candidates among 55 Lactic acid producing bacteria (LAB) from human infant faeces, we evaluated by Oil Red O staining and Ucp1 mRNA quantitation in 3T3-L1 preadipocytes. The expression of browning and lipolysis markers was examined along with in vitro assays. The possible mechanism was revealed by molecular and biological experiments including inhibitor and small interfering RNA (siRNA) assays. In a mouse model, physiological, histological, and biochemical parameters and expression of some thermogenesis-related genes were compared among six experimental groups fed a high-fat diet and one normal-diet control group. The results allow us to speculate that BS treatment promotes browning and lipolysis both in vitro and in vivo. Moreover, the BS may activate thermogenic programs via a mechanism involving PKA-CREB signaling in 3T3-L1 cells. According to our data, we can propose that two LAB strains, Bifidobacterium longum DS0956 and Lactobacillus rhamnosus DS0508, may be good candidates for a dietary supplement against obesity and metabolic diseases; however, further research is required for the development as dietary supplements or drugs.
Collapse
Affiliation(s)
- M Hossain
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan Chung-nam 31151, Republic of Korea.,Department of Microbiology, College of Medicine, Soonchunhyang University, Soonchunhyang 6 gil 31, Dongnam-Gu, Cheonan Chung-nam 31151, Republic of Korea
| | - D-S Park
- Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - M S Rahman
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan Chung-nam 31151, Republic of Korea.,Department of Microbiology, College of Medicine, Soonchunhyang University, Soonchunhyang 6 gil 31, Dongnam-Gu, Cheonan Chung-nam 31151, Republic of Korea
| | - S-J Ki
- Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - Y R Lee
- Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-gil, Jeongeup-si, Jeollabuk-do 580-185, Republic of Korea
| | - K M Imran
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan Chung-nam 31151, Republic of Korea.,Department of Microbiology, College of Medicine, Soonchunhyang University, Soonchunhyang 6 gil 31, Dongnam-Gu, Cheonan Chung-nam 31151, Republic of Korea
| | - D Yoon
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan Chung-nam 31151, Republic of Korea.,Department of Microbiology, College of Medicine, Soonchunhyang University, Soonchunhyang 6 gil 31, Dongnam-Gu, Cheonan Chung-nam 31151, Republic of Korea
| | - J Heo
- International Agricultural Development and Cooperation Center, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - T-J Lee
- Department of Anatomy, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea
| | - Y-S Kim
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan Chung-nam 31151, Republic of Korea.,Department of Microbiology, College of Medicine, Soonchunhyang University, Soonchunhyang 6 gil 31, Dongnam-Gu, Cheonan Chung-nam 31151, Republic of Korea
| |
Collapse
|
15
|
Choi S, Park J, Shin H, Heo J, Kim W. How Do Caregivers of Children with Congenital Heart Disease Navigate the Health Care System in Ethiopia? Health Serv Res 2020; 55:65-65. [PMCID: PMC7440601 DOI: 10.1111/1475-6773.13418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2023] Open
Abstract
Research Objective Global surgery is becoming an increasingly important global health agenda. Cardiovascular disease is the major cause of mortality around the world, and congenital heart disease is the leading cause of morbidity in children. This study aimed to investigate and illustrate the caregivers’ experiences of accessing the health care system and undergoing pediatric cardiac surgery for children with congenital heart disease (CHD). Study Design A qualitative study was conducted. Interviews were conducted in December 2019 in Amharic, then translated into English using trained local interpreters. Data were transcribed verbatim and analyzed according to the principles of interpretive thematic analysis, informed by the candidacy framework, using NVivo. The candidacy framework explores the access to health care utilization by seven elements: candidacy, navigation, the permeability of services, appearances at health services, adjudications, offers and resistance, and operating conditions and the local production of candidacy. Population Studied Interviews were conducted with 13 caregivers of 10 patients with congenital heart disease that received cardiac surgery during the week of the interview. Principal Findings The following three themes emerged from the interviews: (a) Recognition of CHD mostly took place at birth, but for those born at home, they found out much later (max 14 years); (b) CHD was misdiagnosed multiple times prior to seeking care at a large hospital; and (c) patients were waiting for the surgery for more than a year, (d) being scheduled for surgery induced both anxiety and hopefulness. In the discussion, caregivers had financial difficulties and struggled in a fragmented delivery system and experienced poor service quality such as the inaccuracy of diagnosis while navigating the Ethiopian health care system. Conclusions Major care‐seeking delays were related to the inefficient and complex health care system, largely due to lack of early CHD recognition and financial hardships. Financial protection is low despite the availability of fee waivers for medications. Low education attainment and distance to hospitals are contributing to this challenge. Implications for Policy or Practice Overall, Ethiopia needs to prioritize policies that protect the financial status of low‐income households that need health care services. Along with increasing health care workforce capacity for pediatric cardiac surgeries in Ethiopia, there is a need to strengthen the district‐level screening capacity to facilitate earlier diagnosis at easily accessible health care settings. Primary Funding Source Search Results Web results Korea International Cooperation Agency.
Collapse
Affiliation(s)
- S. Choi
- Boston University School of Public HealthBostonMAUnited States
| | - J. Park
- Johns Hopkins Bloomberg School of Public HealthBaltimoreMDUnited States
| | - H. Shin
- JW LEE Center for Global MedicineSeoulKorea
| | - J. Heo
- Government institution (South Korea)SeoulKorea
| | - W.‐H. Kim
- JW LEE Center for Global MedicineSeoul National UniversitySeoulKorea
| |
Collapse
|
16
|
Lim E, Kwon J, Park J, Heo J, Kim SK. Selective thiolation and photoswitching mechanism of Cy5 studied by time-dependent density functional theory. Phys Chem Chem Phys 2020; 22:14125-14129. [PMID: 32542240 DOI: 10.1039/d0cp00026d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Cy5 is one of the most widely used organic dyes with a photoswitching property. It can be reversibly photoconverted to the dark state through thiolation with primary thiols. Although photoswitching of Cy5 has been widely used in super-resolution nanoscopy, its thiolation mechanism remains unclear. We carried out time-dependent density functional theory calculations to investigate the excited state dynamics of Cy5 and observed its site-selective thiolation on both the ground and excited states. Scanning the excited state potential energy surfaces by rotating individual C-C bonds revealed structural similarity between the twisted form of Cy5 and the Cy5 subunit in the thiolated Cy5, which suggests that the dark state formation is strongly associated with the torsional motion on the excited state.
Collapse
Affiliation(s)
- Eunhak Lim
- Department of Chemistry, Seoul National University, Seoul 08826, Korea.
| | | | | | | | | |
Collapse
|
17
|
Eun HJ, Min A, Jeon CW, Yoo IT, Heo J, Kim NJ. Chiral and Isomeric Discrimination of Chiral Molecular Ions by Cold Ion Circular Dichroism Spectroscopy. J Phys Chem Lett 2020; 11:4367-4371. [PMID: 32396359 DOI: 10.1021/acs.jpclett.0c01081] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Circular dichroism (CD) spectra contain information about absolute configurations and conformations of chiral compounds. However, extracting this information from CD spectra in solution is challenging, because the spectra exhibit only the averaged CD values of all different conformers. CD spectroscopy of jet-cooled molecules can provide conformation-specific CD spectra, but its application to biomolecules has been limited due to the difficulty of their production in the gas phase. Here, we obtained the first CD spectra of chiral molecular ions produced by electrospray ionization (ESI) using cold ion CD spectroscopy. Protonated l- or d-phenylalanine ions produced by ESI were stored in a cold quadrupole ion trap and irradiated by multiple laser pulses with left or right circular polarization. The CD spectra exhibited well-resolved CD bands of two conformers, whose signs were opposite to each other. This study will broaden the scope of conformation-resolved CD spectroscopy to large molecular ions without size limitations.
Collapse
Affiliation(s)
- Han Jun Eun
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea
| | - Ahreum Min
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea
| | - Chang Wook Jeon
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea
| | - Il Tae Yoo
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea
| | - Jiyoung Heo
- Department of Green Chemical Engineering, Sangmyung University, Chungnam 31066, Korea
| | - Nam Joon Kim
- Department of Chemistry, Chungbuk National University, Chungbuk 28644, Korea
| |
Collapse
|
18
|
Heo J. Computational study of selectivity of dibenzo-18-crown-6-ether dimer for alkaline-earth divalent cations. COMPUT THEOR CHEM 2020. [DOI: 10.1016/j.comptc.2019.112671] [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]
|
19
|
Johnstone EV, Bailey DJ, Lawson S, Stennett MC, Corkhill CL, Kim M, Heo J, Matsumura D, Hyatt NC. Synthesis and characterization of iodovanadinite using PdI 2, an iodine source for the immobilisation of radioiodine. RSC Adv 2020; 10:25116-25124. [PMID: 35517431 PMCID: PMC9055183 DOI: 10.1039/d0ra04114a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/07/2020] [Accepted: 06/14/2020] [Indexed: 12/02/2022] Open
Abstract
The synthesis of a palladium-containing iodovanadinite derivative, hypothetically “PdPb9(VO4)6I2”, was attempted using PdI2 as a source of iodine in searching for a novel waste form for radioiodine. Stoichiometric amounts of Pb3(VO4)2 and PdI2 were batched and reacted at elevated temperatures in sealed vessels. Batched material was also subjected to high-energy ball-milling (HEBM) in order to reduce reaction time and the potential for iodine volatilization during subsequent reaction at 200–500 °C. The resulting products were characterized using X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray analysis, IR spectroscopy, thermal analysis and Pd K XANES. Results showed that PdI2 can function as a sacrificial iodine source for the formation of iodovanadinite, prototypically Pb10(VO4)6I2, however, the incorporation of Pd into this phase was not definitively observed. The sacrificial reaction mechanism involved the decomposition of PdI2 to Pd metal and nascent I2, with the latter incorporated into the iodovanadinite Pb10(VO4)6I2 phase. In comparison to processing using standard solid state reaction techniques, the use of HEBM prior to high temperature reaction generates a more homogeneous end-product with better iodine retention for this system. Overall, the key novelty and importance of this work is in demonstrating a method for direct immobilisation of undissolved PdI2 from nuclear fuel reprocessing, in a composite wasteform in which I-129 is immobilised within a durable iodovandinite ceramic, encapsulating Pd metal. The synthesis and characterisation of a composite wasteform, comprising iodovanadinite Pb10(VO4)6I2 and Pd metal, is reported, for immobilisation of radioiodine PdI2; the formation of Pd incorporated iodovanadinite “PdPb9(VO4)6I2” was not observed.![]()
Collapse
Affiliation(s)
- E. V. Johnstone
- University of Sheffield
- Materials Science and Engineering Department
- Sheffield
- UK
| | - D. J. Bailey
- University of Sheffield
- Materials Science and Engineering Department
- Sheffield
- UK
| | - S. Lawson
- University of Sheffield
- Materials Science and Engineering Department
- Sheffield
- UK
| | - M. C. Stennett
- University of Sheffield
- Materials Science and Engineering Department
- Sheffield
- UK
| | - C. L. Corkhill
- University of Sheffield
- Materials Science and Engineering Department
- Sheffield
- UK
| | - M. Kim
- University of Sheffield
- Materials Science and Engineering Department
- Sheffield
- UK
- Department of Materials Science and Engineering
| | - J. Heo
- Department of Materials Science and Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- South Korea
- Division of Advanced Nuclear Engineering
| | - D. Matsumura
- Materials Sciences Research Center
- Japan Atomic Energy Agency
- Sayo
- Japan
| | - N. C. Hyatt
- University of Sheffield
- Materials Science and Engineering Department
- Sheffield
- UK
| |
Collapse
|
20
|
Hong A, Min A, Jang H, Moon CJ, Jeong C, Choi MY, Heo J, Kim NJ. Induced Circular Dichroism of Jet-Cooled Phenol Complexes with ( R)-(-)-2-Butanol. J Phys Chem A 2019; 123:8913-8920. [PMID: 31549840 DOI: 10.1021/acs.jpca.9b07237] [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: 11/29/2022]
Abstract
The induced circular dichroism (ICD) of phenol complexed with (R)-(-)-2-butanol [PhOH-(-)BOH] in a supersonic jet is investigated using resonant two-photon ionization circular dichroism (R2PICD) spectroscopy. The R2PICD spectrum of PhOH-(-)BOH exhibits nonzero ICD bands near the absorption region of bare PhOH, where (-)BOH is transparent. Two different conformers containing a single hydrogen bond between PhOH and (-)BOH are identified using ultraviolet-ultraviolet hole-burning and infrared ion-dip spectroscopy combined with quantum theoretical calculations. The ICD values of the two conformers are similar to each other. To understand these similar ICD effects of the conformers, the geometrical asymmetry of the PhOH moiety bound to (-)BOH and the coupling strength of the electric transition dipole moments between PhOH and (-)BOH are estimated. Comparing the ICD values of PhOH-(-)BOH with those of PhOH-(-)-l-methyl lactate in the previous report [ Hong , A. ; J. Phys. Chem. Lett. 2018 , 9 , 476 -480 ], we investigate the physical properties that may govern the differences of the ICD values between the two complexes.
Collapse
Affiliation(s)
- Aram Hong
- Department of Chemistry , Chungbuk National University , Cheongju , Chungbuk 28644 , Korea
| | - Ahreum Min
- Department of Chemistry , Chungbuk National University , Cheongju , Chungbuk 28644 , Korea
| | - Heeseon Jang
- Department of Chemistry , Chungbuk National University , Cheongju , Chungbuk 28644 , Korea
| | - Cheol Joo Moon
- Department of Chemistry (BK21+) and Research Institute of Natural Science , Gyeongsang National University , Jinju 52828 , Korea
| | - Changseop Jeong
- Department of Chemistry , Chungbuk National University , Cheongju , Chungbuk 28644 , Korea
| | - Myong Yong Choi
- Department of Chemistry (BK21+) and Research Institute of Natural Science , Gyeongsang National University , Jinju 52828 , Korea
| | - Jiyoung Heo
- Department of Green Chemical Engineering , Sangmyung University , Cheonan , Chungnam 31066 , Korea
| | - Nam Joon Kim
- Department of Chemistry , Chungbuk National University , Cheongju , Chungbuk 28644 , Korea
| |
Collapse
|
21
|
Bogere P, Choi Y, Heo J. Probiotics as alternatives to antibiotics in treating post-weaning diarrhoea in pigs: Review paper. S AFR J ANIM SCI 2019. [DOI: 10.4314/sajas.v49i3.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
22
|
Kwak K, Lim E, Ahn N, Heo J, Bang K, Kim SK, Choi M. An atomistic mechanism for the degradation of perovskite solar cells by trapped charge. Nanoscale 2019; 11:11369-11378. [PMID: 31166352 DOI: 10.1039/c9nr02193k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
It is unmistakably paradoxical that the most vulnerable aspect of the photoactive organic-inorganic hybrid perovskite is its instability against light. Why and how perovskites break down under light irradiation and what happens at the atomistic level of these materials during the degradation process still remain unanswered. In this paper, we found the culprit and verified the mechanism for the irreversible degradation of hybrid perovskite materials from our experimental investigation and ab initio molecular dynamics (AIMD) simulation. We initially found that the electrostatic charges generated by light irradiation and trapped along the grain boundaries of the perovskite crystal result in oxygen-induced irreversible degradation in dry air. This result, together with our previous experimental finding on the same critical role of trapped charges in the perovskite degradation under moisture, suggests that the trapped charges are the main culprit in both the oxygen- and moisture-induced degradation of perovskite materials. Detailed roles of oxygen and water molecules were investigated using AIMD simulation by tracking the atomic motions in the outermost layers of the oxygen- or water-covered methylammonium lead triiodide (denoted MAPbI3 for CH3NH3PbI3) perovskite crystal with trapped charges. In the first few picoseconds of our simulation, trapped charges start disrupting the crystal structure, leading to a short-range interaction between oxygen or water molecules and the compositional ions of MAPbI3. We found that there exist different degradation pathways depending on both the polarity of the trapped charge and the kind of gas molecule. We also verified that a more structurally stable, multi-component perovskite material (with the composition of MA0.6FA0.4PbI2.9Br0.1) showed much stronger resistance against light-induced degradation than MAPbI3 even in 100%-oxygen ambience or humid air.
Collapse
Affiliation(s)
- Kwisung Kwak
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul 08826, Korea and Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, Korea
| | - Eunhak Lim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Korea
| | - Namyoung Ahn
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul 08826, Korea and Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, Korea
| | - Jiyoung Heo
- Department of Green Chemical Engineering, Sangmyung University, Chungnam 31066, Korea
| | - Kijoon Bang
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul 08826, Korea and Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, Korea
| | - Seong Keun Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Korea
| | - Mansoo Choi
- Global Frontier Center for Multiscale Energy Systems, Seoul National University, Seoul 08826, Korea and Department of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, Korea
| |
Collapse
|
23
|
Moehler M, Heo J, Lee HC, Tak WY, Chao Y, Paik SW, Yim HJ, Byun KS, Baron A, Ungerechts G, Jonker D, Ruo L, Cho M, Kaubisch A, Wege H, Merle P, Ebert O, Habersetzer F, Blanc JF, Rosmorduc O, Lencioni R, Patt R, Leen AM, Foerster F, Homerin M, Stojkowitz N, Lusky M, Limacher JM, Hennequi M, Gaspar N, McFadden B, De Silva N, Shen D, Pelusio A, Kirn DH, Breitbach CJ, Burke JM. Vaccinia-based oncolytic immunotherapy Pexastimogene Devacirepvec in patients with advanced hepatocellular carcinoma after sorafenib failure: a randomized multicenter Phase IIb trial (TRAVERSE). Oncoimmunology 2019; 8:1615817. [PMID: 31413923 PMCID: PMC6682346 DOI: 10.1080/2162402x.2019.1615817] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [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: 11/27/2018] [Revised: 04/15/2019] [Accepted: 04/19/2019] [Indexed: 02/07/2023] Open
Abstract
Pexastimogene devacirepvec (Pexa-Vec) is a vaccinia virus-based oncolytic immunotherapy designed to preferentially replicate in and destroy tumor cells while stimulating anti-tumor immunity by expressing GM-CSF. An earlier randomized Phase IIa trial in predominantly sorafenib-naïve hepatocellular carcinoma (HCC) demonstrated an overall survival (OS) benefit. This randomized, open-label Phase IIb trial investigated whether Pexa-Vec plus Best Supportive Care (BSC) improved OS over BSC alone in HCC patients who failed sorafenib therapy (TRAVERSE). 129 patients were randomly assigned 2:1 to Pexa-Vec plus BSC vs. BSC alone. Pexa-Vec was given as a single intravenous (IV) infusion followed by up to 5 IT injections. The primary endpoint was OS. Secondary endpoints included overall response rate (RR), time to progression (TTP) and safety. A high drop-out rate in the control arm (63%) confounded assessment of response-based endpoints. Median OS (ITT) for Pexa-Vec plus BSC vs. BSC alone was 4.2 and 4.4 months, respectively (HR, 1.19, 95% CI: 0.78–1.80; p = .428). There was no difference between the two treatment arms in RR or TTP. Pexa-Vec was generally well-tolerated. The most frequent Grade 3 included pyrexia (8%) and hypotension (8%). Induction of immune responses to vaccinia antigens and HCC associated antigens were observed. Despite a tolerable safety profile and induction of T cell responses, Pexa-Vec did not improve OS as second-line therapy after sorafenib failure. The true potential of oncolytic viruses may lie in the treatment of patients with earlier disease stages which should be addressed in future studies. ClinicalTrials.gov: NCT01387555
Collapse
Affiliation(s)
- M Moehler
- First Department of Medicine, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - J Heo
- College of Medicine, Pusan National University and Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - H C Lee
- Asan Medical Center, University of Ulsan College of Medicine, Ulsan, Republic ofKorea
| | - W Y Tak
- School of Medicine, Kyungpook National University Medical Center, Daegu, Republic of Korea
| | - Y Chao
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - S W Paik
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H J Yim
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan-si, Republic of Korea
| | - K S Byun
- Department of Internal Medicine, Korea UniversityCollege of Medicine, Seoul, Republic of Korea
| | - A Baron
- Department of Medicine, California Pacific Medical Center, San Francisco, CA, USA
| | - G Ungerechts
- Department of Medical Oncology, National Center for Tumor Diseases (NCT) and Heidelberg University Hospital, Heidelberg, Germany
| | - D Jonker
- The Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Canada
| | - L Ruo
- Department of Surgery, Juravinski Hospital and Cancer Centre, McMaster University, Hamilton, Canada
| | - M Cho
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Busan, Republic of Korea
| | - A Kaubisch
- Department of Medicine, Montefiore Medical Center, New York, NY, USA
| | - H Wege
- Department of Medicine, Gastroenterology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - P Merle
- Hepatology Unit, Croix-Rousse Hospital, Lyon, France
| | - O Ebert
- Klinik und Poliklinik für Innere Medizin II, Klinikum rechts der Isar, Technical University, Munich, Germany
| | - F Habersetzer
- Pôle Hépato-Digestif, Hôpitaux Universitaires de Strasbourg, INSERM 1110, IHU de Strasbourg and Université de Strasbourg, Strasbourg, France
| | - J F Blanc
- Hepato-Gastroenterology and Digestive Oncology Department, CHU Bordeaux, Bordeaux, France
| | | | - R Lencioni
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - R Patt
- Rad-MD, New York, NY, USA
| | - A M Leen
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - F Foerster
- First Department of Medicine, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - M Homerin
- Medical Affairs, Transgene S.A., Illkirch-Graffenstaden, France
| | - N Stojkowitz
- Clinical Operations, Transgene S.A., 400 Bd Gonthier d'Andernach, Parc d'Innovation, 67405 Illkirch-Graffenstaden, France
| | - M Lusky
- Program Management, Transgene S.A., 400 Bd Gonthier d'Andernach, Parc d'Innovation, 67405 Illkirch-Graffenstaden, France
| | - J M Limacher
- Medical Affairs, Transgene S.A., 400 Bd Gonthier d'Andernach, Parc d'Innovation, 67405 Illkirch-Graffenstaden, France
| | - M Hennequi
- Biostatistics, Transgene S.A., 400 Bd Gonthier d'Andernach, Parc d'Innovation, 67405 Illkirch-Graffenstaden, France
| | - N Gaspar
- Clinical Assays, SillaJen Inc., San Francisco, CA, USA
| | - B McFadden
- Analytical Development and Quality Control, SillaJen Inc., San Francisco, CA, USA
| | - N De Silva
- Clinical, SillaJen Inc., San Francisco, CA, USA
| | - D Shen
- Clinical, SillaJen Inc., San Francisco, CA, USA
| | - A Pelusio
- Clinical, SillaJen Inc., San Francisco, CA, USA
| | - D H Kirn
- SillaJen Inc., San Francisco, CA, USA
| | | | - J M Burke
- Clinical, SillaJen Inc., San Francisco, CA, USA
| |
Collapse
|
24
|
Abstract
Salvage therapy for recurrent high grade gliomas (HGG) includes surgery, radiotherapy and chemotherapy, however, standard treatment does not exist. We evaluated the tolerability and efficacy of re-irradiation (re-RT) with hyperthermia (HT) for patients with recurrent HGG. From September 2010 to July 2015, 20 patients with recurrent HGG were treated with re-RT and HT. The radiotherapy dose of 30 Gray (Gy) was delivered with 2 Gy per fraction daily, and HT was performed twice weekly. Primary endpoints were treatment compliance and toxicity. Second endpoints were overall survival (OS) and progression free survival (PFS). The median interval between initial RT and re-RT was 11 months. During re-RT with HT, there were no significant acute morbidities over grade 3. Median overall survival (OS) from re-irradiation was 8.4 months and the 6 and 12 months survival rate were 67% and 30%, respectively. The median progression free survival (PFS) from re-irradiation was 4.1 month. Our findings suggested that concurrent re-RT with HT was a safe and well-tolerated. In addition, the combination re-RT and HT could be a valuable salvage treatment option for selected recurrent HGG patients with poor performance status.
Collapse
|
25
|
Heo J, Oh Y, Noh O, Chun M, Cho O. PO-0711 Second Primary Cancer in Salivary gland cancer in South Korea: A Nationwide Population-based Study. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31131-4] [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: 11/26/2022]
|
26
|
Cho O, Oh Y, Chun M, Noh O, Heo J. PV-0042 Radiation related lymphopenia as a predictor of locoregional recurrence in early breast cancer. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30462-1] [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: 10/26/2022]
|
27
|
Wilkins L, Hawrylack A, Heo J, Gielata M, Kubicka E, Brautigan D. 04:03 PM Abstract No. 390 Pharmacokinetic verification of loco-regional delivery of caffeic acid using drug-eluting beads in a large animal model. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.465] [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: 11/17/2022] Open
|
28
|
Heo J, Oh Y, Noh O, Chun M, Kim C, Shin Y. PO-139 Second Primary Cancer in Salivary gland cancer: A Nationwide Population-based Study. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30305-6] [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: 11/29/2022]
|
29
|
Lee M, Park H, Heo J, Choi H, Seo S. 181 Multi-tissue transcriptomic analysis of the effects of supplementation of L- or D-methionine in acute heat stress-exposed broiler chickens. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.659] [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)
- M Lee
- Chungnam National University,Daejon, South Korea
| | - H Park
- Chungnam National University,Daejon, South Korea
| | - J Heo
- Chungnam National University,Daejon, South Korea
| | - H Choi
- CJ Cheiljedang,Seoul, South Korea
| | - S Seo
- Chungnam National University,Daejon, South Korea
| |
Collapse
|
30
|
Wickramasuriya S, Kim E, Macelline S, Shin T, Cho H, Heo J. PSXVI-35 Egg production performance and egg quality of laying hens fed a diet supplemented with deoxynivalenol mycotoxins contaminated corn distillers dried grains with soluble. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.736] [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)
| | - E Kim
- Chungnam National University,Daejeon, South Korea
| | - S Macelline
- Chungnam National University,Daejeon, South Korea
| | - T Shin
- Chungnam National University,Daejeon, South Korea
| | - H Cho
- Chungnam National University,Daejeon, South Korea
| | - J Heo
- Chungnam National University,Daejeon, South Korea
| |
Collapse
|
31
|
Lee S, Choi E, Heo J, Kim S, Lee S, Jo S, Won Y. GROUP VOLUNTEERING AS SERIOUS LEISURE AND SUCCESSFUL AGING. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.436] [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: 11/12/2022] Open
Affiliation(s)
| | - E Choi
- Colorado State University
| | | | | | | | | | | |
Collapse
|
32
|
Heo J, Cheng AL, Raoul JL, Peck-Radosavljevic M, Kudo M, Nakajima K, Bayh I, Lin SM, Lee H. Practice patterns, radiologic tumor response, and deterioration of liver function after transarterial chemoembolization (TACE): Final analysis of OPTIMIS in Korea and other regions. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy432.003] [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: 11/13/2022] Open
|
33
|
Han SS, Heo J, Lee SJ. Risk of lung cancer following pulmonary tuberculosis: A nationwide population-based cohort study, South Korea. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.115] [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: 11/12/2022] Open
|
34
|
Lee H, Jung J, Heo J. P1.15-14 Pneumonia in Patients with Lung Cancer of South Korea: A Nationwide Population Based Study. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.946] [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: 10/28/2022]
|
35
|
Lee O, Kim K, Kim J, Kim YD, Pak H, Hong G, Chim CY, Uhm J, Cho I, Joung B, Yu C, Lee H, Kang W, Heo J, Jang Y. P3830Favorable neurological outcomes of left atrial appendage occlusion versus non-vitamin K antagonist oral anticoagulants after stroke in atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3830] [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: 11/14/2022] Open
Affiliation(s)
- O Lee
- Severance Hospital, Cardiology, Yongin, Korea Republic of
| | - K Kim
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - J Kim
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - Y D Kim
- Severance Hospital, Neurology, Seoul, Korea Republic of
| | - H Pak
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - G Hong
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - C Y Chim
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - J Uhm
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - I Cho
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - B Joung
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - C Yu
- Korea University Anam Hospital, Cardiology, Seoul, Korea Republic of
| | - H Lee
- Sejong General Hospital, Cardiology, Seoul, Korea Republic of
| | - W Kang
- Gil Hospital, Cardiology, Incheon, Korea Republic of
| | - J Heo
- Severance Hospital, Neurology, Seoul, Korea Republic of
| | - Y Jang
- Severance Hospital, Cardiology, Seoul, Korea Republic of
| |
Collapse
|
36
|
Heo J, Oh Y, Noh O, Chun M, Cho O. EP-1109: Psychiatric comorbidity among nasopharynx cancer survivors who received radiotherapy in South Korea. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31419-1] [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: 10/14/2022]
|
37
|
Jang H, Kim NJ, Heo J. Benchmarking study on time-dependent density functional theory calculations of electronic circular dichroism for gas-phase molecules. COMPUT THEOR CHEM 2018. [DOI: 10.1016/j.comptc.2018.01.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
38
|
Hong A, Moon CJ, Jang H, Min A, Choi MY, Heo J, Kim NJ. Isomer-Specific Induced Circular Dichroism Spectroscopy of Jet-Cooled Phenol Complexes with (-)-Methyl l-Lactate. J Phys Chem Lett 2018; 9:476-480. [PMID: 29309156 DOI: 10.1021/acs.jpclett.7b03241] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Induced circular dichroism (ICD) is the CD observed in the absorption of an achiral molecule bound to a transparent chiral molecule through noncovalent interactions. ICD spectroscopy has been used to probe the binding between molecules, such as protein-ligand interactions. However, most ICD spectra have been measured in solution, which only exhibit the averaged CD values of all conformational isomers in solution. Here, we obtained the first isomer-selective ICD spectra by applying resonant two-photon ionization CD spectroscopy to jet-cooled phenol complexes with (-)-methyl l-lactate (PhOH-(-)ML). The well-resolved CD bands in the spectra were assigned to two conformers, which contained different types of hydrogen-bonding interactions between PhOH and (-)ML. The ICD values of the two conformers have different signs and magnitudes, which were explained by differences both in the geometrical asymmetries of PhOH bound to (-)ML and in the electronic coupling strengths between PhOH and (-)ML.
Collapse
Affiliation(s)
- Aram Hong
- Department of Chemistry, Chungbuk National University , Chungbuk 28644, Korea
| | - Cheol Joo Moon
- Department of Chemistry (BK21+) and Research Institute of Natural Science, Gyeongsang National University , Jinju 52828, Korea
| | - Heeseon Jang
- Department of Chemistry, Chungbuk National University , Chungbuk 28644, Korea
| | - Ahreum Min
- Department of Chemistry, Chungbuk National University , Chungbuk 28644, Korea
| | - Myong Yong Choi
- Department of Chemistry (BK21+) and Research Institute of Natural Science, Gyeongsang National University , Jinju 52828, Korea
| | - Jiyoung Heo
- Department of Green Chemical Engineering, Sangmyung University , Chungnam 31066, Korea
| | - Nam Joon Kim
- Department of Chemistry, Chungbuk National University , Chungbuk 28644, Korea
| |
Collapse
|
39
|
Cho O, Oh Y, Chun M, Noh O, Heo J. P1.15-015 Prognostic Implication of the FEV1/FVC Ratio in Limited-Stage Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1051] [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: 11/29/2022]
|
40
|
Song H, Kim Y, Park J, Park M, Lyu S, Koh Y, Heo J, Lee D, Park K. Biocompatible nanoparticle PLGA is a noble safe delivery system for embryo development and next generations. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.465] [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: 10/18/2022]
|
41
|
Choi Y, Lyu S, Park H, Park M, Lee S, Cho M, Ko J, Koh Y, Heo J, Park H, Kim J, Lee W. Differences in endometrial microbial composition correlate with implantation failure after IVF embryo transfer. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.1087] [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: 10/18/2022]
|
42
|
Choe S, Kim S, Jun Y, Lee W, Kang I, Koong M, Heo J, Sim C, Koh Y, Park D, Yoon T. Ambient air pollution is associated with success of in-vitro fertilization cycles: a retrospective study in Seoul, Korea. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.959] [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: 11/27/2022]
|
43
|
Yu E, Sim C, Park D, Koh Y, Heo J, Choe S, Kim J, Koong M, Kang I, Yoon T, Kim Y. Relationship between heavy metal concentration and number of spontaneous abortion experiences in Korean women: a retrospective study of the 6th Korean national health and nutrition examination survey. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.947] [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: 10/18/2022]
|
44
|
Han E, Koh Y, Heo J, Kim M, Lee H, Park H, Kim J, Lee W. Efficacy of granulocyte colony stimulation factor(G-CSF) administration to improve IVF outcomes: a meta-analysis. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.1037] [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: 10/18/2022]
|
45
|
Choe S, Kim Y, Kang I, Sim C, Heo J, Koh Y, Koong M, Yoon T, Park D, Lee Y, Kim J, Kim M. Risk factors for premature or early menopause: a comparative study between United States and South Korean women. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.369] [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: 10/18/2022]
|
46
|
Affiliation(s)
- J. Ryu
- Texas A&M University, College Station, Texas,
| | - H. Yang
- Texas A&M University, College Station, Texas,
| | - A.C. Kim
- University of Florida, Gainesville, Florida
| | - K. Kim
- University of Miami, Miami, Florida,
| | - J. Heo
- Texas A&M University, College Station, Texas,
| |
Collapse
|
47
|
Affiliation(s)
- J. Heo
- Charles E. Schmidt College of Medicine at Florida Atlantic University, Boca Raton, Florida
| | - M. Tolea
- Charles E. Schmidt College of Medicine at Florida Atlantic University, Boca Raton, Florida
| | - J.E. Galvin
- Charles E. Schmidt College of Medicine at Florida Atlantic University, Boca Raton, Florida
| |
Collapse
|
48
|
Heo J, Oh Y, Noh O, Chun M, Park J, Cho S. EP-1268: Tumor response according to NK cell change during preoperative chemoradiotherapy in rectal cancer. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31703-6] [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]
|
49
|
Oh R, Lim E, Zhang X, Heo J, Bowen KH, Kim SK. Ab initio study on anomalous structures of anionic [(N-heterocycle)-CO2]− complexes. J Chem Phys 2017; 146:134304. [DOI: 10.1063/1.4979576] [Citation(s) in RCA: 3] [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: 11/14/2022] Open
Affiliation(s)
- Rena Oh
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Eunhak Lim
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Xinxing Zhang
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Jiyoung Heo
- Department of Biomedical Technology, Sangmyung University, Seoul 31066, South Korea
| | - Kit H. Bowen
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - Seong Keun Kim
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| |
Collapse
|
50
|
Affiliation(s)
- Tielong Gao
- Department of Applied Chemistry; Kyung Hee University; Yongin 17104 Republic of Korea
| | - Kyung Mi Lee
- Department of Applied Chemistry; Kyung Hee University; Yongin 17104 Republic of Korea
| | - Seon Ho Kim
- Department of Applied Chemistry; Kyung Hee University; Yongin 17104 Republic of Korea
| | - Jiyoung Heo
- Department of Biomedical Technology; Sangmyung University; Cheonan 31066 Republic of Korea
| | - Sung Ik Yang
- Department of Applied Chemistry; Kyung Hee University; Yongin 17104 Republic of Korea
| |
Collapse
|