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Funchain P, Ni Y, Heald B, Bungo B, Arbesman M, Behera TR, McCormick S, Song JM, Kennedy LB, Nielsen SM, Esplin ED, Nizialek E, Ko J, Diaz-Montero CM, Gastman B, Stratigos AJ, Artomov M, Tsao H, Arbesman J. Germline Cancer Susceptibility in Individuals with Melanoma. J Am Acad Dermatol 2024:S0190-9622(24)00504-8. [PMID: 38513832 DOI: 10.1016/j.jaad.2023.11.070] [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: 05/19/2023] [Revised: 11/05/2023] [Accepted: 11/27/2023] [Indexed: 03/23/2024]
Abstract
BACKGROUND Prior studies have estimated a small number of individuals with melanoma (2-2.5%) have germline cancer predisposition, yet a recent twin study suggested melanoma has the highest hereditability among cancers. OBJECTIVE To determine the incidence of hereditary melanoma and characterize the spectrum of cancer predisposition genes that may increase the risk of melanoma. METHODS 400 individuals with melanoma and personal or family history of cancers underwent germline testing of >80 cancer predisposition genes. Comparative analysis of germline data was performed on 3 additional oncologic and dermatologic datasets. RESULTS Germline pathogenic/likely pathogenic (P/LP) variants were identified in 15.3% (61) individuals with melanoma. Most variants (41, 67%) involved genes considered unrelated to melanoma (BLM, BRIP1, CHEK2, MLH1, MSH2, PMS2, RAD51C). A third (20, 33%) were in genes previously associated with familial melanoma (BAP1, BRCA2, CDKN2A, MITF, TP53). Nearly half (30, 46.9%) of P/LP variants were in HRD genes. Validation cohorts demonstrated P/LP rates of 10.6% from an unselected oncologic cohort, 15.8% from a selected commercial testing cohort and 14.5% from a highly selected dermatologic study. LIMITATIONS Cohorts with varying degrees of selection, some retrospective. CONCLUSION Germline predisposition in individuals with melanoma is common, with clinically actionable findings diagnosed in 10.6% to 15.8%.
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Affiliation(s)
- P Funchain
- Taussig Cancer Institute, Cleveland Clinic Foundation, Cleveland, OH, USA.
| | - Y Ni
- Center for Immunotherapy & Precision Immuno-Oncology, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - B Heald
- Genomic Medicine Institute, Cleveland Clinic Foundation, Cleveland, OH, USA; Invitae Corporation, South San Francisco, CA, USA
| | - B Bungo
- Medicine Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - M Arbesman
- Taussig Cancer Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - T R Behera
- Taussig Cancer Institute, Cleveland Clinic Foundation, Cleveland, OH, USA; Center for Immunotherapy & Precision Immuno-Oncology, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - S McCormick
- Center Cancer Risk Assessment, Massachusetts General Hospital, Cambridge, MA, USA
| | - J M Song
- Taussig Cancer Institute, Cleveland Clinic Foundation, Cleveland, OH, USA; Department of Hematology/Oncology, MetroHealth, Cleveland, USA
| | - L B Kennedy
- Taussig Cancer Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - S M Nielsen
- Invitae Corporation, South San Francisco, CA, USA
| | - E D Esplin
- Invitae Corporation, South San Francisco, CA, USA
| | - E Nizialek
- Department of Medical Oncology, Johns Hopkins University, Baltimore, MD, USA
| | - J Ko
- Pathology and Laboratory Medicine Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - C M Diaz-Montero
- Center for Immunotherapy & Precision Immuno-Oncology, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - B Gastman
- Dermatology and Plastic Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - A J Stratigos
- A. Sygros Hospital Medical School, University of Athens, Athens, Greece
| | | | - H Tsao
- Department of Dermatology, Massachusetts General Hospital, Cambridge, MA, USA
| | - J Arbesman
- Dermatology and Plastic Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
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Park J, Purushothaman B, Hong S, Choi M, Song JM, Kang KW. Abstract 4023: Inhitibing GRP78 in non-small cell lung cancer with acquired resistance to EGFR-TKI. Cancer Res 2023. [DOI: 10.1158/1538-7445.am2023-4023] [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: 04/07/2023]
Abstract
Abstract
Epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) have improved the survival of non small cell lung cancer (NSCLC) patients with active mutation of EGFR. However, some of the patients who received EGFR-TKIs showed the acquired resistance, and eventually relapsed within several months. In the TCGA data sets, gene expression of glucose-related protein 78 (GRP78), an ER chaperone, was upregulated in NSCLC tissues. We also confirmed that protein level of GRP78 was increased in HCC827-GR, H1993-GR and H1993-ER NSCLC cell lines with acquired resistance to EGFR-TKIs. Since GRP78 modulates ER stress level which induces ROS and apoptosis, Ru(II) complex 1 and HA15, both the known GRP78 inhibitors induced higher ER stress and ROS generation accompanying more remarkable anti-proliferative and apoptotic effects in EGFR-TKI-resistant NSCLC cell lines. GRP78 level was also found to be higher in H1975, EGFR-TKI-resistant T790M-mutant cell line than other NSCLC cell lines. Blockade of GRP78 also led to apoptosis in H1975, which is consistent with the results found in the acquired EGFR-TKI-resistant cell lines. In summary, we suggest GRP78 targeting as a potential therapeutic strategy for the acquired EGFR-TKI-resistant NSCLC patients.
Citation Format: Jaewoo Park, Baskaran Purushothaman, Sera Hong, Munkyung Choi, Joon Myong Song, Keon Wook Kang. Inhitibing GRP78 in non-small cell lung cancer with acquired resistance to EGFR-TKI. [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 4023.
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Affiliation(s)
- Jaewoo Park
- 1Seoul National University College of Pharmacy, Seoul, Republic of Korea
| | | | - Sera Hong
- 1Seoul National University College of Pharmacy, Seoul, Republic of Korea
| | - Munkyung Choi
- 1Seoul National University College of Pharmacy, Seoul, Republic of Korea
| | - Joon Myong Song
- 1Seoul National University College of Pharmacy, Seoul, Republic of Korea
| | - Keon Wook Kang
- 1Seoul National University College of Pharmacy, Seoul, Republic of Korea
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Hong S, Song JM. High-Resolution In Situ High-Content Imaging of 3D-Bioprinted Single Breast Cancer Spheroids for Advanced Quantification of Benzo( a)pyrene Carcinogen-Induced Breast Cancer Stem Cells. ACS Appl Mater Interfaces 2023; 15:11416-11430. [PMID: 36812369 DOI: 10.1021/acsami.2c17877] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 06/18/2023]
Abstract
Cancer stem cells (CSCs), also known as tumor-initiating cells, are critically correlated with carcinogenesis and are strongly affected by the environmental factors. Environmental carcinogens, such as benzo(a)pyrene (BaP), are associated with the overproduction of CSCs in various types of cancers, including breast cancer. In this report, we present a sophisticated 3D breast cancer spheroid model for the direct identification and quantitative determination of CSCs induced by carcinogens within intact 3D spheroids. To this end, hydrogel microconstructs containing MCF-7 breast cancer cells were bioprinted within direct-made diminutive multi-well chambers, which were utilized for the mass cultivation of spheroids and in situ detection of CSCs. We found that the breast CSCs caused by BaP-induced mutations were higher in the biomimetic MCF-7 breast cancer spheroids than that in standard 2D monolayer cultures. Precisely controlled MCF-7 cancer spheroids could be generated by serially cultivating MCF-7 cells within the printed hydrogel microconstructs, which could be further utilized for high-resolution in situ high-content 3D imaging analysis to spatially identify the emergence of CSCs at the single spheroid level. Additionally, potential therapeutic agents specific to breast CSCs were successfully evaluated to verify the effectiveness of this model. This bioengineered 3D cancer spheroid system provides a novel approach to investigating the emergence of CSC induced by a carcinogen for environmental hazard assessment in a reproducible and scalable format.
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Affiliation(s)
- Sera Hong
- College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul 08826, South Korea
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Hong S, Choi WS, Purushothaman B, Koh J, Kim HC, Chung JW, Song JM, Choi JW. Drug delivery in transarterial chemoembolization of hepatocellular carcinoma: Ex vivo evaluation using transparent tissue imaging. Acta Biomater 2022; 154:523-535. [PMID: 36374750 DOI: 10.1016/j.actbio.2022.10.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 06/01/2022] [Revised: 09/20/2022] [Accepted: 10/20/2022] [Indexed: 01/27/2023]
Abstract
In this study, we elucidated for the first time the role of anti-cancer drugs in transarterial chemoembolization (TACE) via direct visualization of the spatial distribution of drugs with respect to blood vessels in intact transparent hepatocellular carcinoma (HCC) tissues. To date, precise estimation of drug penetration into tumors using thin 3D tissue sections has been challenging. This study utilized the tissue optical clearing technique to resolve the lack of tissue clarity, thereby enabling deep tissue imaging for the quantitative assessment of drug delivery following TACE. We compared the drug delivery effect, time-dependent embolic effect, and immunogenic response following conventional TACE (cTACE), drug-eluting embolic TACE (DEE-TACE), and transarterial embolization (TAE) in a rat model of HCC. After each treatment, three-dimensional drug delivery was quantitatively evaluated via the transparent liver tumor imaging, and time-dependent tumor necrosis was analyzed by serial tumor harvesting and histological staining. The results showed that chemotherapeutic agents travel only short distances after cTACE (∼80µm) and DEE-TACE (∼110µm), whereas necrosis occurs extensively within 24 h of treatment (85.3-97.2% of tumor cells). In addition, the percentages of CD4 and IL-17+ CD4 T cells increased significantly following treatment; however, drug-loading did not appear to affect the immune response following TACE. In conclusion, transarterially delivered chemotherapeutic agents appeared to exert a limited role, owing to the rapid and overwhelming effect of embolization. STATEMENT OF SIGNIFICANCE: TACE has been widely used for the treatment of HCC, especially for unresectable intermediate and advanced HCCs. Drug use in TACE is expected to provide patients with synergistic therapeutic benefits with the effect of embolic agents; however, the role of chemotherapeutic agents in TACE remains controversial. This study quantitatively verified that chemotherapeutic agents travel only short distances after TACE, while necrosis occurs extensively within 24h, and drug loading does not significantly affect immune responses following TACE. Three-dimensional imaging of intact transparent HCC can contribute to a better understanding of drug delivery mechanisms associated with TACE and also reveal that drug use in TACE may need to be reconsidered and limited to situations when embolization is expected to be insufficient.
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Affiliation(s)
- Sera Hong
- Department of Pharmacy, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Won Seok Choi
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Baskaran Purushothaman
- Department of Pharmacy, College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Jaemoon Koh
- Department of Pathology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Hyo-Cheol Kim
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Jin Wook Chung
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Joon Myong Song
- Department of Pharmacy, College of Pharmacy, Seoul National University, Seoul, South Korea.
| | - Jin Woo Choi
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea.
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Abdelrahim AA, Hong S, Song JM. Integrative In Situ Photodynamic Therapy-Induced Cell Death Measurement of 3D-Bioprinted MCF-7 Tumor Spheroids. Anal Chem 2022; 94:13936-13943. [PMID: 36167500 DOI: 10.1021/acs.analchem.2c03022] [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 development of new in vitro models that closely mimic the tumor microenvironment (TME) to evaluate the efficacy of anticancer drugs has received great attention. In this study, a three-dimensional (3D) bioprinted Michigan Cancer Foundation-7 (MCF-7) cancer spheroid-embedded hydrogel model was suggested for integrative in situ determination of the half-maximal inhibitory concentration (IC50) values of photosensitizers (PSs). The MCF-7 cell-laden alginate/gelatin hydrogel was printed for the fabrication of tumor spheroids. The hydrogel was used to mimic the extracellular matrix (ECM) surrounding the cancer cells in the TME. The fluorescence intensities corresponding to photodynamic therapy (PDT)-induced death of tumor spheroids probed by the laser showed a random distribution in the hydrogel, regardless of the focus of the laser and the vertical-axis direction in which the laser was passed. These results enabled integrative in situ measurement of all tumor spheroids probed by the laser without needing to separate the tumor spheroids in the hydrogel and measure them individually. When compared with two-dimensional (2D) monolayer cultures, very large IC50 values of the PSs, chlorin e6 (Ce6) and sulfonated tetraphenyl porphyrin (sTPP), were achieved in MCF-7 spheroid-embedded hydrogels mainly due to the drug resistance of the tumor spheroids. Additionally, the heterogenic PDT response of single MCF-7 cancer cells in a single tumor spheroid was observed through 3D imaging of irregular apoptosis in a single spheroid since single tumor spheroids showed a heterogenic PDT response. Furthermore, the laser-power-dependent IC50 values of PSs were obtained using the MCF-7 spheroid-embedded hydrogel model.
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Affiliation(s)
- Ayman A Abdelrahim
- College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Sera Hong
- College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul 08826, South Korea
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Shin JI, Kim SE, Lee MH, Kim MS, Lee SW, Park S, Shin YH, Yang JW, Song JM, Moon SY, Kim SY, Park Y, Suh DI, Yang JM, Cho SH, Jin HY, Hong SH, Won HH, Kronbichler A, Koyanagi A, Jacob L, Hwang J, Tizaoui K, Lee KH, Kim JH, Yon DK, Smith L. COVID-19 susceptibility and clinical outcomes in autoimmune inflammatory rheumatic diseases (AIRDs): a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2022; 26:3760-3770. [PMID: 35647859 DOI: 10.26355/eurrev_202205_28873] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE This meta-analysis aims to assess the susceptibility to and clinical outcomes of COVID-19 in autoimmune inflammatory rheumatic disease (AIRD) and following AIRD drug use. MATERIALS AND METHODS We included observational and case-controlled studies assessing susceptibility and clinical outcomes of COVID-19 in patients with AIRD as well as the clinical outcomes of COVID-19 with or without use of steroids and conventional synthetic disease-modifying antirheumatic drugs (csDMARDs). RESULTS Meta-analysis including three studies showed that patients with AIRD are not more susceptible to COVID-19 compared to patients without AIRD or the general population (OR: 1.11, 95% CI: 0.58 to 2.14). Incidence of severe outcomes of COVID-19 (OR: 1.34, 95% CI: 0.76 to 2.35) and COVID-19 related death (OR: 1.21, 95% CI: 0.68 to 2.16) also did not show significant difference. The clinical outcomes of COVID-19 among AIRD patients with and without csDMARD or steroid showed that both use of steroid (OR: 1.69, 95% CI: 0.96 to 2.98) or csDMARD (OR: 1.35, 95% CI: 0.63 to 3.08) had no effect on clinical outcomes of COVID-19. CONCLUSIONS AIRD does not increase susceptibility to COVID-19, not affecting the clinical outcome of COVID-19. Similarly, the use of steroids or csDMARDs for AIRD does not worsen the clinical outcome.
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Affiliation(s)
- J I Shin
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea.
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7
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Badreddine J, Lee MH, Mishra K, Pope R, Kim JY, Hong SH, Gupta S, Song JM, Shin JI, Ghayda RA. Continuing perioperative estrogen therapy does not increase venous thromboembolic events in transgender patients: a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2022; 26:2511-2517. [PMID: 35442466 DOI: 10.26355/eurrev_202204_28488] [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 The aim of this study is to compare the risk of venous thromboembolic events (VTE) between patients suspending and continuing estrogen therapy perioperatively, in male to female gender-affirming surgery (vaginoplasty). MATERIALS AND METHODS The authors conducted a systematic review and meta-analysis of existing research on male to female gender-affirming study, which compared the risk of VTE among the usage of estrogen perioperatively. RESULTS A total of 209 studies were identified as potentially eligible among PubMed, Embase, and Cochrane library databases. Among the studies, 191 studies were excluded due to their abstract inappropriateness. Out of the remaining 18 studies, only 3 articles were eligible and were finally included. Meta-analysis was performed and showed odds ratio of 0.77 (95% CI: 0.04, 14.01). CONCLUSIONS Perioperative estrogen therapy does not increase VTE risk on male to female gender-affirming surgery. Therefore, estrogen therapy may be continued perioperatively in vaginoplasty. More prospective studies are needed.
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Affiliation(s)
- J Badreddine
- Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA; Case Western Reserve University School of Medicine, Cleveland, OH, USA.
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Hong S, Song JM. 3D bioprinted drug-resistant breast cancer spheroids for quantitative in situ evaluation of drug resistance. Acta Biomater 2022; 138:228-239. [PMID: 34718182 DOI: 10.1016/j.actbio.2021.10.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/30/2021] [Accepted: 10/19/2021] [Indexed: 12/26/2022]
Abstract
Drug-resistant cancer spheroids were fabricated by three-dimensional (3D) bioprinting for the quantitative evaluation of drug resistance of cancer cells, which is a very important issue in cancer treatment. Cancer spheroids have received great attention as a powerful in vitro model to replace animal experiments because of their ability to mimic the tumor microenvironment. In this work, the extrusion printing of gelatin-alginate hydrogel containing MCF-7 breast cancer stem cells successfully provided 3D growth of many single drug-resistant breast cancer spheroids in a cost-effective 3D-printed mini-well dish. The drug-resistant MCF-7 breast cancer spheroids were able to maintain their drug-resistant phenotype of CD44high/CD24low/ALDH1high in the gelatin-alginate media during 3D culture and exhibited higher expression levels of drug resistance markers, such as GRP78 chaperon and ABCG2 transporter, than bulk MCF-7 breast cancer spheroids. Furthermore, the effective concentration 50 (EC50) values for apoptotic and necrotic spheroid death could be directly determined from the 3D printed-gelatin-alginate gel matrix based on in situ 3D fluorescence imaging of cancer spheroids located out of the focal point and on the focal point. The EC50 values of anti-tumor agents (camptothecin and paclitaxel) for apoptotic and necrotic drug-resistant cancer spheroid death were higher than those for bulk cancer spheroid death, indicating a greater drug resistance. STATEMENT OF SIGNIFICANCE: This study proposed a novel 3D bioprinting-based drug screening model, to quantitatively evaluate the efficacy of anticancer drugs using drug-resistant MCF-7 breast cancer spheroids formed within a 3D-printed hydrogel. Quantitative determination of anticancer drug efficacy using EC50, which is extremely important in drug discovery, was achieved by 3D printing that enables concurrent growth of many single spheroids efficiently. This study verified whether drug-resistant cancer spheroids grown within 3D-printed gelatin-alginate hydrogel could maintain and present drug resistance. Also, the EC50 values of the apoptotic and necrotic cell deaths were directly acquired in 3D-embedded spheroids based on in situ fluorescence imaging. This platform provides a single-step straightforward strategy to cultivate and characterize drug-resistant spheroids to facilitate anticancer drug screening.
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Hong S, Song JM. A 3D cell printing-fabricated HepG2 liver spheroid model for high-content in situ quantification of drug-induced liver toxicity. Biomater Sci 2021; 9:5939-5950. [PMID: 34318795 DOI: 10.1039/d1bm00749a] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
3D spheroid cultures are attractive candidates for application in in vitro drug-induced hepatotoxicity testing models to improve the reliability of biological information obtainable from a simple 2D culture model. Various 3D spheroid culture models exist for hepatotoxicity screening, but quantitative assays of spheroid response in situ are still challenging to achieve with the current 3D liver toxicity platforms. In this study, we developed a 3D printing-based HepG2 liver spheroid culture model for in situ quantitative evaluation and high-content monitoring of drug-induced hepatotoxicity. HepG2 liver spheroids grown in mini-fabricated hydrogel constructs using a 3D bioprinter were used to obtain the EC50 values and to measure the multi-parametric hepatotoxic effects, including mitochondrial permeability transition (MPT), cytosolic calcium levels, and apoptosis. Interestingly, the average fluorescence intensities of apoptotic and cell death markers, calculated for out-of-focus and in-focus spheroids, increased proportionally as a function of the drug concentration, allowing for the determination of the EC50 values. In addition, 3D HepG2 spheroids were more resistant to nefazodone-induced MPT than 2D HepG2 cells, indicating that the gelatin/alginate hydrogel culture system provides enhanced resistance to hepatotoxic drugs. The drug response of HepG2 liver spheroids was also found to be unrelated to the spheroid size. These results demonstrate that the present 3D cell-printing-based embedded HepG2 liver spheroid platform is a promising approach for screening and characterizing drug-induced hepatotoxicity.
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Affiliation(s)
- Sera Hong
- College of Pharmacy, Seoul National University, Seoul 08826, South Korea.
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Cao J, Miao QL, Yang GC, Zhang H, Lin Y, Chen YX, He P, He XX, Wang Y, Shan YY, Song JM. [The role of FOXF1 and Serotonin transporter in alveolar capillary dysplasia with misalignment of pulmonary veins with differential diagnosis]. Zhonghua Bing Li Xue Za Zhi 2021; 50:811-813. [PMID: 34405622 DOI: 10.3760/cma.j.cn112151-20210329-00241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J Cao
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Q L Miao
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - G C Yang
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - H Zhang
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y Lin
- Department of Neonatology,Shenzhen Children's Hospital, Shenzhen 518038, China
| | - Y X Chen
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - P He
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - X X He
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y Wang
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y Y Shan
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - J M Song
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
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Cao J, Zhang M, Yang GC, Zhang H, He XX, Wang Y, Miao QL, Chen YX, He P, Shan YY, Song JM, Han AJ. [Melanotic neuroectodermal tumor of infancy: a clinicopathological study of three cases]. Zhonghua Bing Li Xue Za Zhi 2021; 50:131-133. [PMID: 33535309 DOI: 10.3760/cma.j.cn112151-20200506-00361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J Cao
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - M Zhang
- Department of Pediatrics, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - G C Yang
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - H Zhang
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - X X He
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y Wang
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Q L Miao
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y X Chen
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - P He
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y Y Shan
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - J M Song
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - A J Han
- Department of Pathology,the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
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Lee S, Kim S, Koo DJ, Yu J, Cho H, Lee H, Song JM, Kim SY, Min DH, Jeon NL. 3D Microfluidic Platform and Tumor Vascular Mapping for Evaluating Anti-Angiogenic RNAi-Based Nanomedicine. ACS Nano 2021; 15:338-350. [PMID: 33231435 DOI: 10.1021/acsnano.0c05110] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Three-dimensional (3D) visualization of tumor vasculature is a key factor in accurate evaluation of RNA interference (RNAi)-based antiangiogenic nanomedicine, a promising approach for cancer therapeutics. However, this remains challenging because there is not a physiologically relevant in vitro model or precise analytic methodology. To address this limitation, a strategy based on 3D microfluidic angiogenesis-on-a-chip and 3D tumor vascular mapping was developed for evaluating RNAi-based antiangiogenic nanomedicine. We developed a microfluidic model to recapitulate functional 3D angiogenic sprouting when co-cultured with various cancer cell types. This model enabled efficient and rapid assessment of antiangiogenic nanomedicine in treatment of hyper-angiogenic cancer. In addition, tissue-clearing-based whole vascular mapping of tumor xenograft allowed extraction of complex 3D morphological information in diverse quantitative parameters. Using this 3D imaging-based analysis, we observed tumor sub-regional differences in the antiangiogenic effect. Our systematic strategy can help in narrowing down the promising targets of antiangiogenic nanomedicine and then enables deep analysis of complex morphological changes in tumor vasculature, providing a powerful platform for the development of safe and effective nanomedicine for cancer therapeutics.
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Affiliation(s)
- Somin Lee
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Seongchan Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Dong-Jun Koo
- Program in Neuroscience, Seoul National University, Seoul 08826, Republic of Korea
| | - James Yu
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyeongjun Cho
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyojin Lee
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, 5 Hwarangno 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Sung-Yon Kim
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
- Program in Neuroscience, Seoul National University, Seoul 08826, Republic of Korea
| | - Dal-Hee Min
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
- Institute of Biotherapeutics Convergence Technology, Lemonex Inc., Seoul 08826, Republic of Korea
| | - Noo Li Jeon
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Republic of Korea
- Department of Mechanical Engineering, Seoul National University, Seoul 08826, Republic of Korea
- Institute of Advanced Machines and Design, Seoul National University, Seoul 08826, Republic of Korea
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13
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Abstract
Silver sulfide quantum dots (Ag2S QDs) as a theragnostic agent have received much attention because they provide excellent optical and chemical properties to facilitate diagnosis and therapy simultaneously.
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Affiliation(s)
| | - Joon Myong Song
- College of Pharmacy
- Seoul National University
- Seoul 08826
- South Korea
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14
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Purushothaman B, Lee J, Hong S, Song JM. Multifunctional TPP-PEG-biotin self-assembled nanoparticle drug delivery-based combination therapeutic approach for co-targeting of GRP78 and lysosome. J Nanobiotechnology 2020; 18:102. [PMID: 32690101 PMCID: PMC7372800 DOI: 10.1186/s12951-020-00661-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 04/10/2020] [Accepted: 07/13/2020] [Indexed: 12/15/2022] Open
Abstract
Background In this study, a multifunctional tetraphenylporphyrin (TPP) conjugated polyethylene glycol with biotin (TPP-PEG-biotin) as a photo-dynamic therapy (PDT) material encapsulating a ruthenium complex 1 (Ru-1) was fabricated as self-assembled nanoparticle (Ru-1@TPP-PEG-biotin SAN) to co-target glucose-regulated protein 78 (GRP78) and the lysosome as a new anti-cancer therapeutic strategy. Results The MTT assay results reveals the enhanced anticancer activity of the Ru-1@TPP-PEG-biotin SANs due to the co-targeting of the GRP78 and lysosome. The Ru-1@TPP-PEG-biotin reduced level of GRP78 and lysosomal ceramide that contributed to the stability of the lysosomal membrane. The endoplasmic reticulum (ER) stress concomitant with the inhibition of GRP78 was clearly monitored by the phosphorylation of protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK), and inositol-requiring enzyme 1 α (IRE1α) kinases to indicate the activation of the unfolded protein response (UPR) signaling using immunofluorescence assay. On the other hand, the degradation of the lysosome was observed through PDT action by the Ru-1@TPP-PEG-biotin SAN treatment. This was confirmed by the co-localization assay showing the disappearance of cathepsin D and lysosomal-associated membrane protein 1 (LAMP1) in the lysosome. Conclusions Considering lysosome-mediated autophagy is an effective cancer cell survival mechanism, the degradation of the lysosome along with GRP78 inhibition by the Ru-1@TPP-PEG-biotin SAN combination therapy is suggested as a new co-targeting cancer treatment.![]()
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Affiliation(s)
| | - Jeongmin Lee
- College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Sera Hong
- College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.
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15
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Lee J, Purushothaman B, Song JM. Inkjet Bioprinting on Parchment Paper for Hit Identification from Small Molecule Libraries. ACS Omega 2020; 5:588-596. [PMID: 31956806 PMCID: PMC6964283 DOI: 10.1021/acsomega.9b03169] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
In this study, an inkjet bioprinting-based high-throughput screening (HTS) system was designed and applied for the first time to a catecholpyrimidine-based small molecule library to find hit compounds that inhibit c-Jun NH2-terminal kinase1 (JNK1). JNK1 kinase, inactivated MAPKAPK2, and specific fluorescent peptides along with bioink were printed on parchment paper under optimized printing conditions that did not allow rapid evaporation of printed media based on Triton-X and glycerol. Subsequently, different small compounds were printed and tested against JNK1 kinase to evaluate their degree of phosphorylation inhibition. After printing and incubation, fluorescence intensities from the phosphorylated/nonphosphorylated peptide were acquired for the % phosphorylation analysis. The IM50 (inhibitory mole 50) value was determined as 1.55 × 10-15 mol for the hit compound, 22. Thus, this work demonstrated that inkjet bioprinting-based HTS can potentially be adopted for the drug discovery process using small molecule libraries, and cost-effective HTS can be expected to be established based on its low nano- to picoliter printing volume.
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16
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17
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Song NA, Lee S, Hwang HS, Choi KH, Kang KH, Om SY, Kim DH, Song JM, Song JK, Kang DH, Yang HM. P5989Effect of neprilysin inhibitor for ischemic mitral regurgitation after myocardial injury. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0710] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
After myocardial infarction (MI), mitral valve (MV) tethering and fibrosis stimulate functional mitral regurgitation (MR), resulting in high morbidity of heart failure and cardiac mortality. However, pharmacological treatment has not been proven effective in reducing ischemic MR. MV change post-MI is associated with an excessive endothelial-to-mesenchymal transition (EMT) by transforming growth factor (TGF)-β overexpression and also with left ventricular (LV) remodeling. In a recent clinical study using echocardiography, angiotensin receptor neprilysin inhibitor (ARNI) reduced functional MR to a greater extent than did valsartan, but the mechanism was not revealed.
Purpose
This study tested the hypothesis that treatment of neprilysin inhibitor attenuates functional MR after MI by facilitating LV reverse remodeling and suppressing EMT which mitigates inadequate leaflet adaptation.
Methods
In male Sprague-Dawley rats (n=31), functional MR was induced by occluding the left circumflex coronary artery. Two weeks after MI, MR and LV dilatation were confirmed by echocardiography and magnetic resonance imaging (MRI). Rats were randomly assigned to LCZ696 treatment (ARNI, 60 mg/kg/d, n=10), valsartan treatment (30mg/kg/d, n=10), or corn oil only (MR control group; n=11). After 6 weeks, LV volumes, functions and MR extent were quantified by using echocardiography, cardiac MRI and pressure-volume loop analysis. Also, excised mitral leaflets and LV were analyzed by histopathology and primary cultured valvular endothelial cells (VECs) were evaluated focusing on molecular changes.
Results
LCZ696 significantly attenuated post-MI LV dilatation after 6 weeks when compared with the control group (LV end-diastolic volume (EDV), 461.3±41.3 uL versus 525.1±78.2 uL; p<0.05), while valsartan did not (LV EDV, 471.2±26.8 uL; p>0.05 to control). There were no significant differences in the change of arterial pressure and ejection fraction between the treatment groups, however, dP/dt was greater in the LCZ696 group than in the MR control group (8203±286 mmHg/s for LCZ696 versus 6936±555 mmHg/s for MR control; p=0.01). MR extent and LA volume were significantly decreased in the LCZ696 group compared with the valsartan group. Pathological analysis showed that fibrosis was more prominent in the MR control than in the LCZ696 group. LCZ696 strongly reduced leaflet thickness, TGF-β, and downstream phosphorylated extracellular-signal-regulated kinase and EMT (25.4±11.8% vs. 53.4±12.6% α-smooth muscle actin-positive VECs; p<0.05). Leaflet area increased comparably (5%) in the LCZ696 group compared with the valsartan group.
Conclusions
Neprilysin inhibitor has positive effects on LV reverse remodeling and also directly modulates profibrotic changes of MV leaflets post-MI without eliminating adaptive growth. Understanding the mechanisms could provide new opportunities to ARNI reducing ischemic MR.
Acknowledgement/Funding
This work was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2014R1A6A3A04056205). It was also
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Affiliation(s)
- N A Song
- Asan Medical Center, Seoul, Korea (Republic of)
| | - S Lee
- Asan Medical Center, Seoul, Korea (Republic of)
| | - H S Hwang
- Asan Medical Center, Seoul, Korea (Republic of)
| | - K H Choi
- Asan Medical Center, Seoul, Korea (Republic of)
| | - K H Kang
- Asan Medical Center, Seoul, Korea (Republic of)
| | - S Y Om
- Asan Medical Center, Seoul, Korea (Republic of)
| | - D H Kim
- Asan Medical Center, Seoul, Korea (Republic of)
| | - J M Song
- Asan Medical Center, Seoul, Korea (Republic of)
| | - J K Song
- Asan Medical Center, Seoul, Korea (Republic of)
| | - D H Kang
- Asan Medical Center, Seoul, Korea (Republic of)
| | - H M Yang
- Seoul National University Hospital, Seoul, Korea (Republic of)
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18
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Lin SF, Chen Y, Song JM, Chen Q, Wen FQ, Liao JX. [Tuberous sclerosis complex presenting with a single focal cortical dysplasia on magnetic resonance imaging]. Zhonghua Er Ke Za Zhi 2019; 57:148-150. [PMID: 30695892 DOI: 10.3760/cma.j.issn.0578-1310.2019.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- S F Lin
- Center of Epilepsy, Shenzhen Children's Hospital, Shenzhen 518026, China
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19
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Purushothaman B, Choi J, Park S, Lee J, Samson AAS, Hong S, Song JM. Biotin-conjugated PEGylated porphyrin self-assembled nanoparticles co-targeting mitochondria and lysosomes for advanced chemo-photodynamic combination therapy. J Mater Chem B 2019; 7:65-79. [DOI: 10.1039/c8tb01923a] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
In this study, the chemo-drug doxorubicin (DOX) was successfully encapsulated in PEG–biotin conjugated porphyrin SANs (DOX@TPP–PEG–biotin) and had synergistic effects after PDT action.
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Affiliation(s)
| | - Jinhyeok Choi
- College of Pharmacy
- Seoul National University
- Seoul 08826
- South Korea
| | - Solji Park
- College of Pharmacy
- Seoul National University
- Seoul 08826
- South Korea
| | - Jeongmin Lee
- College of Pharmacy
- Seoul National University
- Seoul 08826
- South Korea
| | | | - Sera Hong
- College of Pharmacy
- Seoul National University
- Seoul 08826
- South Korea
| | - Joon Myong Song
- College of Pharmacy
- Seoul National University
- Seoul 08826
- South Korea
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20
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Bang S, Lee BJ, Lee SR, Na S, Jang JM, Kang M, Kim SY, Min DH, Song JM, Ho WK, Jeon NL. Reliable autapse formation using the single-cell patterning method. Biofabrication 2018; 11:015008. [DOI: 10.1088/1758-5090/aaeb66] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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21
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Ahn J, Cho CS, Cho SW, Kang JH, Kim SY, Min DH, Song JM, Park TE, Jeon NL. Investigation on vascular cytotoxicity and extravascular transport of cationic polymer nanoparticles using perfusable 3D microvessel model. Acta Biomater 2018; 76:154-163. [PMID: 29807185 DOI: 10.1016/j.actbio.2018.05.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [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: 01/19/2018] [Revised: 05/16/2018] [Accepted: 05/24/2018] [Indexed: 12/12/2022]
Abstract
Vascular networks are the first sites exposed to cationic polymer nanoparticles (NPs) administered intravenously, and thus function as a barrier for NPs reaching the target organ. While cationic polymer NPs have been intensively studied as non-viral delivery systems, their biological effects in human microvessels have been poorly investigated due to a lack of appropriate in vitro systems. Here, we employed a three-dimensional microvessel on a chip, which accurately models in vivo conditions. An open and perfused microvessel surrounded by pericytes was shown to reproduce the important features of living vasculature, including barrier function and biomarkers. Using this microvessel chip, we observed contraction of the microvascular lumen induced by perfused polyethylenimine (PEI)/DNA NPs. We demonstrated that the oxidative stress present when microvessels were exposed to PEI NPs led to rearrangement of microtubules resulting in microvessel contraction. Furthermore, the transcytotic behavior of PEI NPs was analyzed in the microvessel by monitoring the escape of PEI NPs from the microvascular lumen into the perivascular region, which was not possible in two-dimensional culture systems. With our new understanding of the different behaviors of cationic polymer NPs depending on their transcytotic route, we suggest that caveolae-mediated transcytosis is a powerful route for efficient extravascular transport. STATEMENT OF SIGNIFICANCE Microvascular networks are not only biological system constituting largest surface area in the body and but also first site exposed to nanoparticle in vivo. While cationic polymer NPs have been intensively studied as non-viral delivery systems, its biological effects in human microvessel have been poorly investigated due to lack of appropriate in vitro systems. Here, we microengineered an open and perfused 3D pericyte incorporated microvessel model which possesses same morphological characteristic of in vivo. Using the microengineered model, this study represents the first report of transcytotic behavior of NPs in 3D microvessel, and its effect on extravasation efficiency. Our study lays the groundwork for the integration of innovative technologies to examine blood vessel-nanoparticle interaction, which a critical but ill-defined phenomenon.
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Affiliation(s)
- Jungho Ahn
- School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, South Korea; George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, North Ave NW, Atlanta, GA 30332, USA
| | - Chong-Su Cho
- Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 08826, South Korea
| | - Seong Woo Cho
- Ulsan National Institute of Science and Technology, Ulsan 44914, South Korea
| | - Joo H Kang
- Ulsan National Institute of Science and Technology, Ulsan 44914, South Korea
| | - Sung-Yon Kim
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul, South Korea
| | - Dal-Hee Min
- Department of Chemistry, Seoul National University, Seoul, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul 08826, South Korea
| | - Tae-Eun Park
- Ulsan National Institute of Science and Technology, Ulsan 44914, South Korea.
| | - Noo Li Jeon
- School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 08826, South Korea.
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22
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Purushothaman B, Arumugam P, Ju H, Kulsi G, Samson AAS, Song JM. Novel ruthenium(II) triazine complex [Ru(bdpta)(tpy)]2+ co-targeting drug resistant GRP78 and subcellular organelles in cancer stem cells. Eur J Med Chem 2018; 156:747-759. [DOI: 10.1016/j.ejmech.2018.07.048] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 07/14/2018] [Accepted: 07/17/2018] [Indexed: 12/17/2022]
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23
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Lee KS, Park HK, Chio YS, Lee SA, Heo R, Lee SM, Song JM, Kang DH, Song JK. P1758Clinical situations associated with inappropriately large regurgitant volume in the assessment of mitral regurgitation severity using proximal flow convergence method. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1758] [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)
- K S Lee
- Asan Medical Center, Cardiology, Seoul, Korea Republic of
| | - H K Park
- Asan Medical Center, Cardiology, Seoul, Korea Republic of
| | - Y S Chio
- Asan Medical Center, Cardiology, Seoul, Korea Republic of
| | - S A Lee
- Asan Medical Center, Cardiology, Seoul, Korea Republic of
| | - R Heo
- Asan Medical Center, Cardiology, Seoul, Korea Republic of
| | - S M Lee
- Asan Medical Center, Cardiology, Seoul, Korea Republic of
| | - J M Song
- Asan Medical Center, Cardiology, Seoul, Korea Republic of
| | - D H Kang
- Asan Medical Center, Cardiology, Seoul, Korea Republic of
| | - J K Song
- Asan Medical Center, Cardiology, Seoul, Korea Republic of
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Lee J, Samson AAS, Song JM. Inkjet printing-based β-secretase fluorescence resonance energy transfer (FRET) assay for screening of potential β-secretase inhibitors of Alzheimer's disease. Anal Chim Acta 2018; 1022:89-95. [DOI: 10.1016/j.aca.2018.03.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/27/2018] [Accepted: 03/20/2018] [Indexed: 10/17/2022]
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25
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Samson AAS, Lee J, Song JM. Inkjet printing-based photo-induced electron transfer reaction on parchment paper using riboflavin as a photosensitizer. Anal Chim Acta 2018; 1012:49-59. [DOI: 10.1016/j.aca.2018.02.004] [Citation(s) in RCA: 12] [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: 11/13/2017] [Revised: 01/16/2018] [Accepted: 02/05/2018] [Indexed: 01/14/2023]
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26
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Purushothaman B, Arumugam P, Song JM. A Novel Catecholopyrimidine Based Small Molecule PDE4B Inhibitor Suppresses Inflammatory Cytokines in Atopic Mice. Front Pharmacol 2018; 9:485. [PMID: 29867490 PMCID: PMC5958743 DOI: 10.3389/fphar.2018.00485] [Citation(s) in RCA: 11] [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: 01/02/2018] [Accepted: 04/24/2018] [Indexed: 01/23/2023] Open
Abstract
Degradation of cyclic adenosine mono phosphate (cAMP) by phosphodiesterase-4B (PDE-4B) in the inflammatory cells leads to elevated expression of inflammatory cytokines in inflammatory cells. Suppression of cytokines has proved to be beneficial in the treatment of atopic dermatitis (AD). Henceforth, application of PDE4B specific inhibitor to minimize the degradation of cAMP can yield better results in the treatment of AD. PDE4B specific inhibitor with a limited side effect is highly warranted. Herein, we synthesized a novel PDE4 inhibitor, compound 2 comprising catecholopyrimidine core functionalized with trifluoromethyl (-CF3) group. PDE4B inhibitory potential and specificity of novel compounds were evaluated by PDE inhibitor assay. In vivo efficacy of the compounds was analyzed using DNCB-induced NC/Nga mice. IgE, CD4+ T-helper cell infiltration, and cytokine profiles were analyzed by ELISA and immunohistochemistry techniques. Toluidine blue staining was performed for mast cell count. PDE4 inhibitor assay confirmed that compound 2 specifically inhibits PDE4B. In vivo analysis with DNCB-induced NC/Nga mice confirmed that compound 2 suppressed the levels of pro-inflammatory cytokines such as TNF-α, IL-4, IL-5, and IL-17. Furthermore, compound 2 significantly reduced the infiltrative CD4+ T-helper cells, mast cells and IgE levels in atopic tissue. The in vitro and in vivo data suggested that compound 2 specifically inhibit the PDE4B and the symptoms of the AD in atopic mice. Compound 2 might constitute a good candidate molecule for the treatment of AD.
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Affiliation(s)
| | | | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul, South Korea
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27
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Jeong SB, Im JH, Yoon JH, Bui QT, Lim SC, Song JM, Shim Y, Yun J, Hong J, Kang KW. Essential Role of Polo-like Kinase 1 (Plk1) Oncogene in Tumor Growth and Metastasis of Tamoxifen-Resistant Breast Cancer. Mol Cancer Ther 2018; 17:825-837. [PMID: 29437878 DOI: 10.1158/1535-7163.mct-17-0545] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 10/17/2017] [Accepted: 02/01/2018] [Indexed: 02/07/2023]
Abstract
The most common therapy for estrogen receptor-positive breast cancer is antihormone therapy, such as tamoxifen. However, acquisition of resistance to tamoxifen in one third of patients presents a serious clinical problem. Polo-like kinase 1 (Plk1) is a key oncogenic regulator of completion of G2-M phase of the cell cycle. We assessed Plk1 expression in five chemoresistant cancer cell types and found that Plk1 and its downstream phosphatase Cdc25c were selectively overexpressed in tamoxifen-resistant MCF-7 (TAMR-MCF-7) breast cancer cells. Real-time monitoring of cell proliferation also showed that TAMR-MCF-7 cells were more sensitive to inhibition of cell proliferation by the ATP-competitive Plk1 inhibitor BI2536 than were the parent MCF-7 cells. Moreover, BI2536 suppressed expression of epithelial-mesenchymal transition marker proteins and 3D spheroid formation in TAMR-MCF-7 cells. Using TAMR-MCF-7 cell-implanted xenograft and spleen-liver metastasis models, we showed that BI2536 inhibited tumor growth and metastasis in vivo Our results suggest that Plk1 could be a novel target for the treatment of tamoxifen-resistant breast cancer. Mol Cancer Ther; 17(4); 825-37. ©2018 AACR.
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Affiliation(s)
- Sung Baek Jeong
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Ji Hye Im
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Jeong-Hoon Yoon
- Department of Oral & Maxillofacial Pathology, College of Dentistry, Daejeon Dental Hospital, Wonkwang University, Daejeon, South Korea
| | - Quyen Thu Bui
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Sung Chul Lim
- Department of Pathology, College of Medicine, Chosun University, Gwangju, South Korea
| | - Joon Myong Song
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Yumi Shim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Jieun Yun
- Department of Pharmaceutical Engineering, College of Science & Engineering, Cheongju University, Cheongju, South Korea
| | - Janghee Hong
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Keon Wook Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea.
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Jeong SB, Im JH, Yoon JH, Bui QT, Lim SC, Song JM, Shim Y, Yun J, Hong J, Kang KW. Essential Role of Polo-like Kinase 1 (Plk1) Oncogene in Tumor Growth and Metastasis of Tamoxifen-Resistant Breast Cancer. Mol Cancer Ther 2018. [PMID: 29437878 DOI: 10.1158/1535-7163.mct-17-0545.] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The most common therapy for estrogen receptor-positive breast cancer is antihormone therapy, such as tamoxifen. However, acquisition of resistance to tamoxifen in one third of patients presents a serious clinical problem. Polo-like kinase 1 (Plk1) is a key oncogenic regulator of completion of G2-M phase of the cell cycle. We assessed Plk1 expression in five chemoresistant cancer cell types and found that Plk1 and its downstream phosphatase Cdc25c were selectively overexpressed in tamoxifen-resistant MCF-7 (TAMR-MCF-7) breast cancer cells. Real-time monitoring of cell proliferation also showed that TAMR-MCF-7 cells were more sensitive to inhibition of cell proliferation by the ATP-competitive Plk1 inhibitor BI2536 than were the parent MCF-7 cells. Moreover, BI2536 suppressed expression of epithelial-mesenchymal transition marker proteins and 3D spheroid formation in TAMR-MCF-7 cells. Using TAMR-MCF-7 cell-implanted xenograft and spleen-liver metastasis models, we showed that BI2536 inhibited tumor growth and metastasis in vivo Our results suggest that Plk1 could be a novel target for the treatment of tamoxifen-resistant breast cancer. Mol Cancer Ther; 17(4); 825-37. ©2018 AACR.
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Affiliation(s)
- Sung Baek Jeong
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Ji Hye Im
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Jeong-Hoon Yoon
- Department of Oral & Maxillofacial Pathology, College of Dentistry, Daejeon Dental Hospital, Wonkwang University, Daejeon, South Korea
| | - Quyen Thu Bui
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Sung Chul Lim
- Department of Pathology, College of Medicine, Chosun University, Gwangju, South Korea
| | - Joon Myong Song
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Yumi Shim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea
| | - Jieun Yun
- Department of Pharmaceutical Engineering, College of Science & Engineering, Cheongju University, Cheongju, South Korea
| | - Janghee Hong
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Keon Wook Kang
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Korea.
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Samson AAS, Lee J, Song JM. Paper-based inkjet bioprinting to detect fluorescence resonance energy transfer for the assessment of anti-inflammatory activity. Sci Rep 2018; 8:591. [PMID: 29330381 PMCID: PMC5766618 DOI: 10.1038/s41598-017-18995-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 12/19/2017] [Indexed: 12/14/2022] Open
Abstract
For the first time, a paper-based fluorescence resonance energy transfer (FRET) determination with cyclic AMP (cAMP)-specific phosphodiesterase 4B (PDE4B) inhibitory assay using an inkjet-printing technique is proposed. Non-fabricated parchment paper is found to constitute a unique substrate to measure fluorescent energy transfer, due to its insignificant self-absorption, and enables efficient sample interaction. Here, we report the responsive FRET signals generated on paper, upon sequentially printing reaction components on parchment paper using a conventional inkjet printer equipped with four cartridges. After printing, the energy emitted by Eu chelate was transferred by FRET to ULight molecule on paper, detected at 665 nm. In the absence of free cAMP, a maximum FRET signal was achieved on paper, while a decrease in FRET signals was recorded when free cAMP produced by PDE4B inhibitors compete with Eu-cAMP, binding with ULight-mAb. The IM50 value was determined as 2.46 × 10−13 mole for roliparm and 1.86 × 10−13 mole for roflumilast, to effectively inhibit PDE4B activity. Inkjet printing-based FRET signal determination utilizes components that are less than the femtomole range, which was four-orders less than the standard assay method. The methodology reported here constitutes an innovative approach towards the determination of FRET signals generated on paper.
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Affiliation(s)
| | - Jungmi Lee
- College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.
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Kim T, Jang H, Kim S, Lee JH, Kim SY, Jeon NL, Song JM, Min DH. Synthesis of Fluorescent Au Nanocrystals-Silica Hybrid Nanocomposite (FLASH) with Enhanced Optical Features for Bioimaging and Photodynamic Activity. Langmuir 2018; 34:173-178. [PMID: 29198119 DOI: 10.1021/acs.langmuir.7b02562] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Fluorescent Au nanocrystals (AuNCs)-silica hybrid nanocomposite (FLASH) was synthesized by co-condensation of surface-modified AuNCs. Present FLASH nanocomposite exhibited four times the enhanced photoluminescence and photocatalytic activity compared to single nanocrystals. On the basis of these enhanced optical features, we successfully demonstrated in vitro fluorescence bioimaging of introduced FLASH to human cervical cancer cell line (HeLa). Beyond the confirmation of photocatalytic activity from the photodegradation of methylene blue as a model compound, the regional selective photodynamic therapy of HeLa cells under UV irradiation was also presented. Taken together the enhanced optical features and further potential in theranostic applications, we expect that the present FLASH can be a promising tool for nanobiotechnology field.
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Affiliation(s)
- Taeshik Kim
- Center for RNA Research, Institute of Basic Science (IBS) , Seoul 08826, Republic of Korea
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University , 20 Gwangwoon-ro, Nowon-gu, Seoul 01897, Republic of Korea
| | - Seongchan Kim
- Center for RNA Research, Institute of Basic Science (IBS) , Seoul 08826, Republic of Korea
| | - Jong-Hwan Lee
- Center for RNA Research, Institute of Basic Science (IBS) , Seoul 08826, Republic of Korea
| | | | | | | | - Dal-Hee Min
- Center for RNA Research, Institute of Basic Science (IBS) , Seoul 08826, Republic of Korea
- Institute of Nanobio Convergence Technology, Lemonex Inc. , Seoul 08826, Republic of Korea
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Samson AAS, Park S, Kim SY, Min DH, Jeon NL, Song JM. Liposomal co-delivery-based quantitative evaluation of chemosensitivity enhancement in breast cancer stem cells by knockdown of GRP78/CLU. J Liposome Res 2018; 29:44-52. [PMID: 29262741 DOI: 10.1080/08982104.2017.1420081] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [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: 02/07/2023]
Abstract
Resistance to chemotherapy is a key factor in the inefficacy of various forms of treatments for cancer. In the present study, chemo-resistant proteins, including glucose-regulated protein 78 (GRP78)/clusterin (CLU) targeted 1,2-dioleoyloxy-3-trimethylammoniumpropane (DOTAP) liposomes, were developed as a delivery system for co-delivery of camptothecin (CPT) and GRP78 siRNA/CLU siRNA. Their drug/gene co-deliveries were quantitatively assessed in cancer stem cells (CSC) and MCF-7 cells. DOTAP-CPT/siRNA were prepared via electrostatic interaction on GRP78 siRNA or CLU siRNA. The size and ζ-potential of liposomes and lipoplexes were measured by dynamic light scattering techniques and electrophoretic light scattering spectrophotometry. The lipoplexes formation was tested by using gel electrophoresis. Immunofluorescence analysis showed that the expression level of CLU and GRP78 were significantly elevated in CSC compared to MCF-7 cells. Transfection and drug-delivery efficiency of DOTAP-CPT/siRNA were quantitatively compared with Lipofectamine 2000. Compared to free CPT, DOTAP-CPT-siCLU delivery in CSC and MCF-7 cells increased transfection efficiency and chemo-sensitivity by 4.1- and 5.9-fold, respectively. On the other hand, DOTAP-CPT-siGRP78 delivery increased transfection efficiency and chemo sensitivity by 4.4- and 6.2-fold in CSC and MCF-7 cells, respectively, compared to free CPT. It is significant that 3 ± 1.2-fold increase in transfection efficiency was achieved by lipofectamine. Consequently, an increase in anti-cancer/gene silencing efficacy was quantitatively observed as an effect of DOTAP-CPT/siRNA treatment, which was relatively higher than lipofectamine treatment. Conclusively, our experimental data quantitatively demonstrate that using DOTAP-CPT-siRNA specifically targeting (CSCs) chemo-resistant protein in vitro offers substantial potential for synergistic anti-cancer therapy.
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Affiliation(s)
| | - Solji Park
- a College of Pharmacy , Seoul National University , Seoul , Korea
| | - Sung-Yon Kim
- b Department of Biophysics and Chemical Biology , Seoul National University , Seoul , Korea
| | - Dal-Hee Min
- c Department of Chemistry , Seoul National University , Seoul , Korea
| | - Noo Li Jeon
- d School of Mechanical and Aerospace Engineering , Seoul National University , Seoul , Korea
| | - Joon Myong Song
- a College of Pharmacy , Seoul National University , Seoul , Korea
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Park SJ, Kim S, Kim SY, Jeon NL, Song JM, Won C, Min DH. Highly Efficient and Rapid Neural Differentiation of Mouse Embryonic Stem Cells Based on Retinoic Acid Encapsulated Porous Nanoparticle. ACS Appl Mater Interfaces 2017; 9:34634-34640. [PMID: 28921950 DOI: 10.1021/acsami.7b09760] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
An improved cell conversion strategy for neural differentiation of mouse embryonic stem (mES) cells is developed by incorporating functionalized mesoporous silica nanoparticle (MSN) as an efficient delivery carrier of retinoic acid (RA), which is a pleiotropic factor required for initiation of neural differentiation. Traditional RA-mediated neural differentiation methods required either preactivation of the cells to the differentiating state by embryoid body (EB) formation or repetitive treatment of the differentiation factor. Our modified cell conversion system involves only singular treatment of the RA/MSN complex, which simplified the whole process and accelerated neural induction to be finished within 6 days with high quality. With our new method, neural cells were successfully derived from mES cells with stable expression of neurite marker gene.
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Affiliation(s)
- Se-Jin Park
- Center for RNA Research, Institute for Basic Science (IBS), Seoul National University , Seoul 08826, Republic of Korea
- Department of Chemistry, Seoul National University , Seoul 08826, Republic of Korea
| | - Seongchan Kim
- Center for RNA Research, Institute for Basic Science (IBS), Seoul National University , Seoul 08826, Republic of Korea
- Department of Chemistry, Seoul National University , Seoul 08826, Republic of Korea
| | - Sung-Yon Kim
- Department of Chemistry, Seoul National University , Seoul 08826, Republic of Korea
| | - Noo Li Jeon
- Department of Mechanical and Aerospace Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University , Seoul 08826, Republic of Korea
| | - Cheolhee Won
- Institute of Nanobio Convergence Technology, Lemonex Inc. , Seoul 08826, Republic of Korea
| | - Dal-Hee Min
- Center for RNA Research, Institute for Basic Science (IBS), Seoul National University , Seoul 08826, Republic of Korea
- Department of Chemistry, Seoul National University , Seoul 08826, Republic of Korea
- Institute of Nanobio Convergence Technology, Lemonex Inc. , Seoul 08826, Republic of Korea
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Park S, Arumugam P, Purushothaman B, Kim SY, Min DH, Jeon NL, Song JM. Quantum-dot nanoprobes and AOTF based cross talk eliminated six color imaging of biomolecules in cellular system. Anal Chim Acta 2017; 985:166-174. [PMID: 28864187 DOI: 10.1016/j.aca.2017.07.010] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 07/03/2017] [Accepted: 07/05/2017] [Indexed: 10/19/2022]
Abstract
Primary cell cultures mimic the physiology and genetic makeup of in-vivo tissue of origin, nonetheless, a complication in the derivation and propagation of primary cell culture limits its use in biological research. However, in-vitro models using primary cells might be a complement model to mimic in vivo response. But, conventional techniques such as western blot and PCR employed to study the expression and activation of proteins requires a large number of cells, hence repeated establishment and maintenance of primary culture are unavoidable. Quantum dot (Q-dot) and acousto-optic tunable filters (AOTF) based multiplex imaging system is a viable alternative choice to evaluate multiple signaling molecules by using a small number of cells. Q-dots have broad excitation and narrow emission spectra, which allows to simultaneously excite multiple Q-dots by using single excitation wavelength. The use of AOTF in the fluorescence detection system enables to scan the fluorescence emission intensity of a Q-dot at their central wavelength, this phenomenon effectively avoids spectral overlap among the neighboring Q-dots. When Q-dots are conjugated with antibodies it acts as effective sensing probes. To validate this, the expression pattern of p-JNK-1, p-GSK3β, p-IRS1ser, p-IRS1tyr, p-FOXO1, and PPAR-γ, involved in the insulin resistance were concurrently monitored in adipocyte and HepG2 co-cell culture model. The observed results clearly indicate that PPAR-γ is the critical component in the development of insulin resistance. Moreover, the results proved that developed Q-dot based AOTF imaging methodology is a sensible choice to concurrently monitor multiple signaling molecules with limited cell population.
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Affiliation(s)
- Solji Park
- College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | | | | | - Sung-Yon Kim
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul, South Korea
| | - Dal-Hee Min
- Department of Chemistry, Seoul National University, Seoul, South Korea
| | - Noo Li Jeon
- School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul 151-742, South Korea.
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Yang WP, Wu HY, Zhang W, Chen GS, Chen WJ, Li H, Song JM, An HB, Xu JL, Zhao WY, Wang YZ, Cui LY, An Z, Tao J, He LJ. [Consensus on pathologic diagnosis of Wilms' tumor in children]. Zhonghua Bing Li Xue Za Zhi 2017; 46:149-154. [PMID: 28297753 DOI: 10.3760/cma.j.issn.0529-5807.2017.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Ju H, Arumugam P, Lee J, Song JM. Impact of Environmental Pollutant Cadmium on the Establishment of a Cancer Stem Cell Population in Breast and Hepatic Cancer. ACS Omega 2017; 2:563-572. [PMID: 30023612 PMCID: PMC6044754 DOI: 10.1021/acsomega.6b00181] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 02/03/2017] [Indexed: 05/09/2023]
Abstract
Cadmium, a heavy metal pollutant, causes cancer. The existence of cancer stem cells (CSCs) in tumors is widely considered to be the reason for the recurrence and treatment failure of cancer. Increasing evidence has confirmed that under certain conditions non-CSCs could be converted into CSCs. The impact of cadmium on the development of CSC lineage in the bulk tumor cell population is not yet studied. The aim of this study was to evaluate the effect of cadmium on the conversion of non-CSCs to CSCs and the identification of CSCs based on the concurrent monitoring of multiple CSC markers. High-content monitoring of molecular markers was performed using quantum dot (QD) nanoprobes and an acousto-optical tunable filter (AOTF)-based imaging device. Cadmium treatment significantly increased the CSC population in MCF-7 and HepG2 cell lines. The cadmium-induced CSCs were identified by a concurrent analysis of stem-cell markers, namely, CD44, CD24, CD133, and ALDH1. Moreover, increased m-RNA expression of CD44, ALDH1, and CD133 and protein expression of p-Ras, p-Raf-1, p-MEK-1, and p-ERK-1 were observed in the cadmium-treated MCF-7 and HepG2 cells. This study demonstrates that cadmium induces the gene expression of CSC markers in the breast and liver cancer cell lineage and promotes the conversion of non-CSCs to CSCs.
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Affiliation(s)
| | | | - Jungmi Lee
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, South Korea
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Abstract
An accurate, rapid, and cost-effective methodology for enzyme inhibitor assays is highly needed for large-scale screening to evaluate the efficacy of drugs at the molecular level. For the first time, we have developed an inkjet printing-based enzyme inhibition assay for the assessment of drug activity using a conventional inkjet printer composed of four cartridges. The methodology is based on the determination of the number of moles of the drug on the printed surface. The number of moles was quantified through the volume of substance ejected onto the printed surface. The volume ejected on the reaction spot was determined from the density of reagent ink solution and its weight loss after printing. A xanthine oxidase (XOD) inhibition assay was executed to quantitatively evaluate antioxidant activities of the drug based on the determination of the number of moles of the drug ejected by inkjet printing. The assay components of xanthine, nitro blue tetrazolium (NBT), superoxide dismutase (SOD)/drug, and XOD were printed systematically on A4 paper. A gradient range of the number of moles of SOD/drug printed on A4 paper could be successfully obtained. Because of the effect of enzyme activity inhibition, incrementally reduced NBT formazan colors appeared on the paper in a number-of-moles-dependent manner. The observed inhibitory mole (IM50) values of tested compounds exhibited a similar tendency in their activity order, compared to the IC50 values observed through absorption assay in well plates. Inkjet printing-based IM50 assessment consumed a significantly smaller reaction volume (by 2-3 orders of magnitude) and more rapid reaction time, compared to the well-plate-based absorption assay.
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Affiliation(s)
- Jungmi Lee
- College of Pharmacy, Seoul National University , Seoul 151-742, South Korea
| | | | - Joon Myong Song
- College of Pharmacy, Seoul National University , Seoul 151-742, South Korea
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37
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Ki J, Shim Y, Song JM. High-content cell death imaging using quantum dot-based TIRF microscopy for the determination of anticancer activity against breast cancer stem cell. J Biophotonics 2017; 10:118-127. [PMID: 26768511 DOI: 10.1002/jbio.201500282] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 12/17/2015] [Accepted: 12/18/2015] [Indexed: 06/05/2023]
Abstract
We report a two color monitoring of drug-induced cell deaths using total internal reflection fluorescence (TIRF) as a novel method to determine anticancer activity. Instead of cancer cells, breast cancer stem cells (CSCs) were directly tested in the present assay to determine the effective concentration (EC50 ) values of camptothecin and cisplatin. Phosphatidylserine and HMGB1 protein were concurrently detected to observe apoptotic and necrotic cell death induced by anticancer drugs using quantum dot (Qdot)-antibody conjugates. Only 50-to-100 breast CSCs were consumed at each cell chamber due to the high sensitivity of Qdot-based TIRF. The high sensitivity of Qdot-based TIRF, that enables the consumption of a small number of cells, is advantageous for cost-effective large-scale drug screening. In addition, unlike MTT assay, this approach can provide a more uniform range of EC50 values because the average values of single breast CSCs fluorescence intensities are observed to acquire EC50 values as a function of dose. This research successfully demonstrated the possibility that Qdot-based TIRF can be widely used as an improved alternative to MTT assay for the determination of anticancer drug efficacies.
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Affiliation(s)
- Jieun Ki
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-ku, Seoul, 151-742, South Korea
| | - Yumi Shim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-ku, Seoul, 151-742, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-ku, Seoul, 151-742, South Korea
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Rangasamy S, Tak YK, Kim S, Paul A, Song JM. Bifunctional Therapeutic High-Valence Silver-Pyridoxine Nanoparticles with Proliferative and Antibacterial Wound-Healing Activities. J Biomed Nanotechnol 2016; 12:182-96. [PMID: 27301183 DOI: 10.1166/jbn.2016.2179] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The antibacterial and moisturizing effects inherent to silver nanoparticles contribute greatly to their use as a topical antibacterial agent. The antibacterial property of silver nanoparticles provides topical wounds with an indirect environment for healing through the prevention of pathogenic infection. However, the direct wound-healing effects of silver nanoparticles have not been previously explored. In this work, we report a bimodal therapeutic silver nanoparticle that possesses both direct wound-healing and antibacterial properties. The nanoparticles consist of high-valence silver-pyridoxine complexes. The wound-healing efficacy was verified in diabetic mice, as well as in vitro assays. A MAPK pathway study demonstrated that silver-pyridoxine nanoparticles induced the proliferation and migration of keratinocyte and fibroblast cells. Antibacterial activities in 8 different pathogenic bacteria responsible for the infection of burn wounds were tested. The rapid wound healing occurring on skin wounds of diabetic mice attests to the utility of bimodal therapeutic silver nanoparticles as a next-generation topical therapeutic agent.
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Song JM, Jagannathan R, Stokes DL, Kasili PM, Panjehpour M, Phan MN, Overholt BF, DeNovo RC, Pan X, Lee RJ, Vo-Dinh T. Development of a Fluorescence Detection System Using Optical Parametric Oscillator (OPO) Laser Excitation for in Vivo Diagnosis. Technol Cancer Res Treat 2016; 2:515-23. [PMID: 14640763 DOI: 10.1177/153303460300200604] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this work, the development and applications of a fluorescence detection system using optical parametric oscillator (OPO) laser excitation for in vivo disease diagnosis including oral carcinoma are described. The optical diagnosis system was based on an OPO laser for multi-wavelength excitation and time-resolved detection. The pulsed Nd-YAG-pumped OPO laser system (6 ns, 20 Hz) is compact and has a rapid, broad, and uniform tuning range. Time-gated detection of intensified charge-coupled device (ICCD) making use of external triggering was used to effectively eliminate the laser scattering and contribute to the highly sensitive in vivo measurements. Artificial tissue-simulating phantoms consisting of polystyrene microspheres and tissue fluorophores were tested to optimize the gating parameters. 51-ns gate width and 39-ns gate delays were determined to be the optimal parameters for sensitive detection. in vivo measurements with the optical diagnosis system were applied to esophagus, stomach, and small intestine using an endoscope in canine animal studies. The rapid tuning capability of the optical diagnosis system contributed greatly to the optimization of wavelength for the observation of porphyrin in the small intestine. When the small intestine was thoroughly washed with water, the emission band which corresponds to porphyrin disappeared. Based on this observation, it was concluded that the detected signal was yielded by porphyrin-containing bile secretion. Also, multispectral analyses using multiple excitations from 415 to 480 nm at 5 nm intervals confirmed the porphyrin detection in the small intestine. The optical diagnosis system was also applied to the detection of human xenograft of oral carcinoma in mice using 5-aminolevulinic acid (5-ALA) which is a photodynamic therapy (PDT) drug. Significant differences in protoporphyrin IX fluorescence intensity between normal and tumor tissue could be obtained 2 hours after the injection of 5-ALA into mice due to the preferential accumulation of 5-ALA in tumors. Results reported herein demonstrate potential capabilities of the LIF-OPO system for in vivo disease diagnosis.
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Affiliation(s)
- J M Song
- Oak Ridge National Laboratory, Bethel Valley Road, MS-6101, P.O. Box 2008, Oak Ridge, Tennessee 37831-6101, USA.
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Song JM, Ko BS, Sohn JY, Shin J. Morphological Study of Poly(vinylbenzyl chloride)-Grafted Poly(ethylene-co-tetrafluoroethylene) [ETFE-g-PVBC] Films Using Small-Angle Neutron Scattering Analysis. J Nanosci Nanotechnol 2016; 16:6313-6317. [PMID: 27427709 DOI: 10.1166/jnn.2016.12139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this study, the effect of degree of the grafting and crosslinking on the morphology of the crystalline domain in poly(vinylbenzyl chloride)-grafted poly(ethylene-co-tetrafluoroethylene) [ETFE-g-PVBC] films was investigated using a SANS (small-angle neutron scattering) analysis. The grafted films can be used as a precursor for ion-exchange membrane. ETFE-g-PVBC films with various degrees of cross-linking were prepared by a simultaneous irradiation grafting of vinylbenzyl chloride (VBC) and divinylbenzene (DVB) onto an ETFE film. The SEM-EDX (scanning electron microscopy-energy dispersive X-ray spectroscopy) results of a cross-sectional distribution of ETFE-g-PVBC films showed that the chlorine atoms were well-distributed throughout the films. SANS profiles of the PVBC-grafted films in the absence of a DVB crosslinker showed that the crystalline domain peaks were observed and the peak maximum position shifted significantly from 0.032 Å-(-1) to 0.02 Å(-1) with an increase in the degree of grafting. However, peak maximum positions of the PVBC-grafted films in the presence of a DVB crosslinker shifted slightly from 0.02 Å(-1) to 0.024 Å(-1) with an increase in the amount of DVB monomer at same degree of grafting. These results indicate that the degree of grafting and crosslinking affect the morphology of the crystalline domain in the ETFE-g-PVBC films.
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Ki J, Arumugam P, Song JM. TIRF high-content assay development for the evaluation of drug efficacy of chemotherapeutic agents against EGFR-/HER2-positive breast cancer cell lines. Anal Bioanal Chem 2016; 408:3233-8. [PMID: 26886741 DOI: 10.1007/s00216-016-9387-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 11/24/2015] [Accepted: 02/02/2016] [Indexed: 01/06/2023]
Abstract
Elevated expression of epidermal growth factor receptor (EGFR) is reported to be associated with poor prognosis in breast cancer. EGFR subtype identification plays a crucial role in deciding the drug combination to treat the cancer patients. Conventional application of immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH) produces more discordance results in EGFR subtype identification of cancer specimens. The present study is designed to develop an analytical method for simultaneous identification of cell surface biomarkers and quantitative estimation of drug efficacy in cancer specimens. For this study, we have utilized a total internal reflection fluorescence microscope (TIRFM), Qdot molecular probes and chemotherapeutic agent camptothecin (CPT)-treated breast cancer cell lines namely MCF-7, SK-BR-3 and JIMT-1. Highly sensitive detection signals with low background noise generated from the evanescent field excitation of TIRFM make it a highly suitable tool to detect the cell surface biomarkers in living cells. Moreover, single wavelength excitation of Qdot probes offers multicolour imaging with strong emission brightness. In the present study, TIRF high-content imaging system simultaneously showed the expression pattern of EGFRs and EC50 value for CPT-induced apoptosis and necrosis in MCF-7, SK-BR-3 and JIMT-1 cancer cell lines.
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Affiliation(s)
- Jieun Ki
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-ku, Seoul, 151-742, Republic of Korea
| | - Parthasarathy Arumugam
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-ku, Seoul, 151-742, Republic of Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-ku, Seoul, 151-742, Republic of Korea.
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Ki J, Mukherjee A, Rangasamy S, Purushothaman B, Song JM. Insulin-mimetic and anti-inflammatory potential of a vanadyl-Schiff base complex for its application against diabetes. RSC Adv 2016. [DOI: 10.1039/c6ra11111d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Insulin-mimetic and anti-inflammatory potential of vanadium oxo complex (VOTP) enhances the GLUT4 translocation by inducing the phosphorylation of tyrosine moiety in insulin receptor substrate (IRS1).
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Affiliation(s)
- Jieun Ki
- College of Pharmacy
- Seoul National University
- Seoul 151-742
- South Korea
| | | | | | | | - Joon Myong Song
- College of Pharmacy
- Seoul National University
- Seoul 151-742
- South Korea
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Arumugam P, Song JM. Quantitative evaluation of ABC transporter-mediated drug resistance based on the determination of the anticancer activity of camptothecin against breast cancer stem cells using TIRF. Integr Biol (Camb) 2016; 8:704-11. [DOI: 10.1039/c6ib00021e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Total internal reflection fluorescence microscopy (TIRF) and Qdot probe based analytical method for the simultaneous evaluation of the cytotoxic ability of camptothecin and the drug resistance profile upon the inhibition of drug efflux pumps in breast cancer stem cells.
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Affiliation(s)
| | - Joon Myong Song
- College of Pharmacy
- Seoul National University
- Seoul 151-741
- South Korea
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Mukherjee A, Shim Y, Myong Song J. Quantum dot as probe for disease diagnosis and monitoring. Biotechnol J 2015; 11:31-42. [PMID: 26709963 DOI: 10.1002/biot.201500219] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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: 05/29/2015] [Revised: 09/18/2015] [Accepted: 12/09/2015] [Indexed: 12/15/2022]
Abstract
Semiconductor quantum dots (QD) possess unique optical and electric properties like size-tunable light emission, narrow emission range, high brightness and photostability. Recent research advances have minimized the toxicity of QDs and they are successfully used in in vitro and in vivo imaging. Encapsulation of QDs into polymeric nanoparticles and linking them with targeting ligands enabled the detection of tumors and cancer cells in vivo. QD-antibody conjugates were successfully used in monitoring and diagnosis of HIV and myocardial infarction. Application of near infrared (NIR) QDs was found to minimize the absorption and scattering of light by native tissues thus rendering them suitable in deep tissue analysis. Aggregation and endosomal sequestration of QDs pose major challenges for the effective delivery of QDs to the cell cytosol. Toxicity minimization and effective delivery strategies may further increase their suitability for utilization in disease diagnosis. New synthesis of QDs may provide new types of bioconjugates of QDs to biomolecules, which leads to a variety of applications to many challenged research areas. QDs with narrow emission wavelength ranges are very suitable for monitoring multiple cellular targets simultaneously, and still remain the best known probes for imaging as an alternative to traditional fluorophores in disease diagnosis.
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Affiliation(s)
| | - Yumi Shim
- College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul, South Korea.
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Tak YK, Pal S, Naoghare PK, Rangasamy S, Song JM. Shape-Dependent Skin Penetration of Silver Nanoparticles: Does It Really Matter? Sci Rep 2015; 5:16908. [PMID: 26584777 PMCID: PMC4653615 DOI: 10.1038/srep16908] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [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: 04/14/2015] [Accepted: 10/22/2015] [Indexed: 12/19/2022] Open
Abstract
Advancements in nano-structured materials have facilitated several applications of nanoparticles (NPs). Skin penetration of NPs is a crucial factor for designing suitable topical antibacterial agents with low systemic toxicity. Available reports focus on size-dependent skin penetration of NPs, mainly through follicular pathways. Herein, for the first time, we demonstrate a proof-of-concept study that entails variations in skin permeability and diffusion coefficients, penetration rates and depth-of-penetration of differently shaped silver NPs (AgNPs) via intercellular pathways using both in vitro and in vivo models. The antimicrobial activity of AgNPs is known. Different shapes of AgNPs may exhibit diverse antimicrobial activities and skin penetration capabilities depending upon their active metallic facets. Consideration of the shape dependency of AgNPs in antimicrobial formulations could help developing an ideal topical agent with the highest efficacy and low systemic toxicity.
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Affiliation(s)
- Yu Kyung Tak
- College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
| | - Sukdeb Pal
- Council of Scientific and Industrial Research-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440020, India
| | - Pravin K Naoghare
- Council of Scientific and Industrial Research-National Environmental Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur 440020, India
| | | | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul 151-742, South Korea
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Nam G, Purushothaman B, Rangasamy S, Song JM. Investigating the versatility of multifunctional silver nanoparticles: preparation and inspection of their potential as wound treatment agents. Int Nano Lett 2015. [DOI: 10.1007/s40089-015-0168-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Rangasamy S, Ju H, Um S, Oh DC, Song JM. Mitochondria and DNA Targeting of 5,10,15,20-Tetrakis(7-sulfonatobenzo[b]thiophene) Porphyrin-Induced Photodynamic Therapy via Intrinsic and Extrinsic Apoptotic Cell Death. J Med Chem 2015; 58:6864-74. [PMID: 26295496 DOI: 10.1021/acs.jmedchem.5b01095] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Photodynamic therapy (PDT) selectively targets subcellular organelles and promises an excellent therapeutic strategy for cancer treatment. Here, we report the synthesis of a new water-soluble photosensitizer, 5,10,15,20-tetrakis (7-sulfonatobenzo[b]thiophene) porphyrin (SBTP). Rational design of the porphyrinic molecule containing benzo[b]thiophene moiety at the meso-position led to selective accumulation in both mitochondria and nucleus of MCF-7 cells. This multitarget ability of SBTP can cause damage to mitochondria as well as DNA simultaneously. FACS analysis showed rapid cellular uptake of SBTP. High-content cell-based assay was executed to concurrently monitor increase of cytosolic Ca(2+) levels, mitochondrial permeability transition (MPT), and caspase-3/7/8 activation in MCF-7 cells under the pathological condition caused by PDT action of SBTP. The study of cell death dynamics showed that PDT action of SBTP caused an increase in the MPT followed by an increase in cytosolic Ca(2+) level. The localization of SBTP in the mitochondria activated the intrinsic apoptotic pathway. Additionally, localization of SBTP in the nucleus led to DNA damage in MCF-7 cells. The DNA fragmentation that occurred by PDT action of SBTP was thought to be responsible for extrinsic apoptosis of MCF-7 cells. SBTP demonstrated effective PDT activity of 5 μM IC50 value to MCF-7 cells by bitargeting mitochondria and DNA.
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Affiliation(s)
| | - Hee Ju
- College of Pharmacy, Seoul National University , Seoul 151-742, South Korea
| | - Soohyun Um
- College of Pharmacy, Seoul National University , Seoul 151-742, South Korea
| | - Dong-Chan Oh
- College of Pharmacy, Seoul National University , Seoul 151-742, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University , Seoul 151-742, South Korea
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Paul A, Ju H, Rangasamy S, Shim Y, Song JM. Nanosized silver (II) pyridoxine complex to cause greater inflammatory response and less cytotoxicity to RAW264.7 macrophage cells. Nanoscale Res Lett 2015; 10:140. [PMID: 25852430 PMCID: PMC4385296 DOI: 10.1186/s11671-015-0848-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 03/06/2015] [Indexed: 06/04/2023]
Abstract
With advancements in nanotechnology, silver has been engineered into a nanometre size and has attracted great research interest for use in the treatment of wounds. Silver nanoparticles (AgNPs) have emerged as a potential alternative to conventional antibiotics because of their potential antimicrobial property. However, AgNPs also induce cytotoxicity, generate reactive oxygen species (ROS), and cause mitochondrial damage to human cells. Pyridoxine possesses antioxidant and cell proliferation activity. Therefore, in the present investigation, a nanosilver-pyridoxine complex (AgPyNP) was synthesized, and its cytotoxicity and immune response was compared with AgNPs in macrophage RAW264.7 cells. Results revealed that AgPyNPs showed less cytotoxicity compared with AgNPs by producing a smaller amount of ROS in RAW264.7 cells. Surprisingly, however, AgPyNPs caused macrophage RAW264.7 cells to secrete a larger amount of interleukin-8 (IL-8) and generate a more active inflammatory response compared to AgNPs. It activated TNF-α, NF-κB p65, and NF-κB p50 to generate a more vigorous immune protection that produces a greater amount of IL-8 compared to AgNPs. Overall findings indicate that AgPyNPs exhibited less cytotoxicity and evoked a greater immune response in macrophage RAW264.7 cells. Thus, it can be used as a better wound-healing agent than AgNPs. Graphical AbstractFigurative representation of the comparison of AgNPs and AgPyNPs in macrophage RAW264.7 cells in terms of cytotoxicity and immune response.
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Affiliation(s)
- Avijit Paul
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-ku, Seoul, 151-742 Korea
| | - Hee Ju
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-ku, Seoul, 151-742 Korea
| | - Sabarinathan Rangasamy
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-ku, Seoul, 151-742 Korea
| | - Yumi Shim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-ku, Seoul, 151-742 Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-ku, Seoul, 151-742 Korea
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Kim MJ, Rangasamy S, Shim Y, Song JM. Cell lysis-free quantum dot multicolor cellular imaging-based mechanism study for TNF-α-induced insulin resistance. J Nanobiotechnology 2015; 13:4. [PMID: 25623542 PMCID: PMC4310030 DOI: 10.1186/s12951-015-0064-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [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: 10/10/2014] [Accepted: 01/07/2015] [Indexed: 12/25/2022] Open
Abstract
Background TNF-α is an inflammatory cytokine that plays an important role in insulin resistance observed in obesity and chronic inflammation. Many cellular components involved in insulin signaling cascade are known to be inhibited by TNF-α. Insulin receptor substrate (IRS)-1 is one of the major targets in TNF-α-induced insulin resistance. The serine phosphorylation of IRS-1 enables the inhibition of insulin signaling. Until now, many studies have been conducted to investigate the mechanism of TNF-α-induced insulin resistance based on Western blot. Intracellular protein kinase crosstalk is commonly encountered in inflammation-associated insulin resistance. The crosstalk among the signaling molecules obscures the precise role of kinases in insulin resistance. We have developed a cell lysis-free quantum dots (QDots) multicolor cellular imaging to identify the biochemical role of multiple kinases (p38, JNK, IKKβ, IRS1ser, IRS1tyr, GSK3β, and FOXO1) in inflammation-associated insulin resistance pathway with a single assay in one run. QDot-antibody conjugates were used as nanoprobes to simultaneously monitor the activation/deactivation of the above seven intracellular kinases in HepG2 cells. The effect of the test compounds on the suppression of TNF-α-induced insulin resistance was validated through kinase monitoring. Aspirin, indomethacin, cinnamic acid, and amygdalin were tested. Results Through the measurement of the glycogen level in HepG2 cell treated with TNF-α, it was found that aspirin and indomethacin increased glycogen levels by almost two-fold compared to amygdalin and cinnamic acid. The glucose production assay proved that cinnamic acid was much more efficient in suppressing glucose production, compared with MAP kinase inhibitors and non-steroidal anti-inflammatory drugs. QDot multicolor cellular imaging demonstrated that amygdalin and cinnamic acid selectively acted via the JNK1-dependent pathway to suppress the inflammation-induced insulin resistance and improve insulin sensitivity. Conclusion The regulatory function of multiple kinases could be monitored concurrently at the cellular level. The developed cellular imaging assay provides a unique platform for the understanding of inflammation and insulin resistance signaling pathways in type II diabetes mellitus and how they regulate each other. The results showed that amygdalin and cinnamic acid inhibit serine phosphorylation of IRS-1 through targeting JNK serine kinase and enhance insulin sensitivity.
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Affiliation(s)
| | | | | | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul 151-742, South Korea.
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Shim Y, Song JM. Spectral overlap-free quantum dot-based determination of benzo[a]pyrene-induced cancer stem cells by concurrent monitoring of CD44, CD24 and aldehyde dehydrogenase 1. Chem Commun (Camb) 2014; 51:2118-21. [PMID: 25536409 DOI: 10.1039/c4cc08953g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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
In this study, it was found that breast cancer stem cells (CSCs) are formed from MCF-7 cells by benzo[a]pyrene (BP)-induced mutation. The breast CSCs were detected through simultaneous monitoring of CD44, CD24 and aldehyde dehydrogenase 1 (ALDH1) by hypermulticolor cellular imaging using an acousto-optical tunable filter (AOTF) and quantum dots (Q-dots).
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Affiliation(s)
- Yumi Shim
- College of Pharmacy, Seoul National University, Seoul 151-741, South Korea.
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