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Gousopoulou E, Bakopoulou A, Laskaris D, Gousopoulos E, Apatzidou DA. Characterization of the soft-tissue wall lining residual periodontal pockets and implications in periodontal wound healing. Clin Oral Investig 2023; 27:5031-5040. [PMID: 37486381 PMCID: PMC10492763 DOI: 10.1007/s00784-023-05122-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 06/10/2023] [Indexed: 07/25/2023]
Abstract
AIM To characterize the soft-tissue wall of remaining periodontal pockets for wound healing-related parameters versus healthy gingival crevices in the same individuals. MATERIALS AND METHODS Gingival tissues collected from the diseased interface of pockets (GT biopsies) and from healthy gingival crevices (G biopsies) were subjected to RT2-profiler PCR Array for wound healing-related markers and network analysis of differentially expressed genes. Lymphangiogenesis-related gene expression was determined by qRT-PCR. The migration potential of mesenchymal stem cells isolated from GT biopsies (GT-MSCs) and G biopsies (G-MSCs) was evaluated by the scratch- and the transwell migration assays. The total collagen protein content was determined in GT-MSCs and G-MSCs homogenates. RESULTS Gene-ontology analysis on significantly upregulated genes expressed in GT biopsies revealed enrichment of several genes involved in processes related to matrix remodeling, collagen deposition, and integrin signaling. No significantly expressed genes were seen in G biopsies. Regarding lymphangiogenesis-related genes, GT biopsies demonstrated greater expression for PROX1 than G biopsies (p = 0.05). Lower migration potential (p < 0.001), yet greater production of collagen protein (p = 0.05), was found for GT-MSCs over G-MSCs. CONCLUSION Differential expression patterns of various molecular pathways in biopsies and cell cultures of diseased versus healthy gingival tissues indicate a potential of the former for tissue remodeling and repair. CLINICAL RELEVANCE In the course of periodontitis, granulation tissue is formed within a periodontal defect in an attempt to reconstruct the site. Following treatment procedures periodontal granulation tissue remains inflamed but appears to retain healing potential.
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Affiliation(s)
- Evangelia Gousopoulou
- Department of Preventive Dentistry, Periodontology & Implant Biology, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.T.H.), 54124, Thessaloniki, Greece
| | - Athina Bakopoulou
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.T.H.), 54124, Thessaloniki, Greece
| | - Dimitrios Laskaris
- Department of Molecular Pathology, Netherlands Cancer Institute, 1066CX, Amsterdam, Netherlands
| | - Epameinondas Gousopoulos
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, 8091, Zurich, Switzerland
| | - Danae A Apatzidou
- Department of Preventive Dentistry, Periodontology & Implant Biology, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki (A.U.T.H.), 54124, Thessaloniki, Greece.
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Shanmugam M, Kuthala N, Kong X, Chiang CS, Hwang KC. Combined Gadolinium and Boron Neutron Capture Therapies for Eradication of Head-and-Neck Tumor Using Gd 10B 6 Nanoparticles under MRI/CT Image Guidance. JACS AU 2023; 3:2192-2205. [PMID: 37654578 PMCID: PMC10466345 DOI: 10.1021/jacsau.3c00250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/16/2023] [Accepted: 07/26/2023] [Indexed: 09/02/2023]
Abstract
Eradication of head-and-neck (H&N) tumors is very difficult and challenging because of the characteristic feature of frequent recurrence and the difficulty in killing cancer stem cells. Neutron capture therapy (NCT) is emerging as a noninvasive potential modality for treatments of various types of tumors. Herein, we report that 98.5% 10B-enriched anti-EGFR-Gd10B6 nanoparticles can not only deliver large doses of 158 μg 10B/g tumor tissues as well as 56.8 μg 157Gd/g tumor tissues with a very high tumor-to-blood (T/B) 10B ratio of 4.18, but also exert very effective CT/MRI image-guided combined GdBNCT effects on killing cancer stem cells and eradication of recurrent head-and-neck (H&N) tumors. This leads to a long average half-lifespan of 81 days for H&N tumor-bearing mice, which is a record-making result, and surpasses the best result reported in the literature using combined radiotherapy and T cell-mediated immunotherapy (70 d).
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Affiliation(s)
- Munusamy Shanmugam
- Department
of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan ROC
| | - Naresh Kuthala
- Department
of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan ROC
| | - Xiangyi Kong
- Department
of Breast Surgical Oncology, National Cancer Center/National Clinical
Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Chi-Shiun Chiang
- Department
of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan R.O.C.
| | - Kuo Chu Hwang
- Department
of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan ROC
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Chatterjee N, Alfaro-Moreno E. In Vitro Cell Transformation Assays: A Valuable Approach for Carcinogenic Potentiality Assessment of Nanomaterials. Int J Mol Sci 2023; 24:ijms24098219. [PMID: 37175926 PMCID: PMC10178964 DOI: 10.3390/ijms24098219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
This review explores the application of in vitro cell transformation assays (CTAs) as a screening platform to assess the carcinogenic potential of nanomaterials (NMs) resulting from continuously growing industrial production and use. The widespread application of NMs in various fields has raised concerns about their potential adverse effects, necessitating safety evaluations, particularly in long-term continuous exposure scenarios. CTAs present a realistic screening platform for known and emerging NMs by examining their resemblance to the hallmark of malignancy, including high proliferation rates, loss of contact inhibition, the gain of anchorage-independent growth, cellular invasion, dysregulation of the cell cycle, apoptosis resistance, and ability to form tumors in experimental animals. Through the deliberate transformation of cells via chronic NM exposure, researchers can investigate the tumorigenic properties of NMs and the underlying mechanisms of cancer development. This article examines NM-induced cell transformation studies, focusing on identifying existing knowledge gaps. Specifically, it explores the physicochemical properties of NMs, experimental models, assays, dose and time requirements for cell transformation, and the underlying mechanisms of malignancy. Our review aims to advance understanding in this field and identify areas for further investigation.
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Affiliation(s)
- Nivedita Chatterjee
- NanoSafety Group, International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
| | - Ernesto Alfaro-Moreno
- NanoSafety Group, International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
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Shen Y, Xu Y, Huang L, Chi Y, Meng L. MiR-205 suppressed the malignant behaviors of breast cancer cells by targeting CLDN11 via modulation of the epithelial-to-mesenchymal transition. Aging (Albany NY) 2021; 13:13073-13086. [PMID: 33971623 PMCID: PMC8148491 DOI: 10.18632/aging.202988] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 03/27/2021] [Indexed: 02/06/2023]
Abstract
Some Aberrant expression of miRNAs plays an important role in the occurrence and distant metastasis of breast cancer. This study aimed to identify crucial miRNA signatures for breast cancer using microarray data from the Gene Expression Omnibus database, including ductal carcinoma in situ and invasive duct carcinoma. In this study, we founded that miR-205 was significantly down-regulated in breast cancer, and the low expression of miR-205 was significantly associated with the TNM stage of breast cancer. In vitro, functional studies revealed that over-expression of miR-205 inhibited the proliferation and promoted apoptosis of breast cancer cells MDA-MB-231. Mechanistically, claudin 11 (CLDN11) was found to be the direct target of miR-205; the function of miR-205 could be exerted via downregulation of the target gene CLDN11 in breast cancer cells. Furthermore, the over-expression of miR-205 promoted the expression of the epithelial marker E-cadherin but reduced the mesenchymal markers in breast cancer cells. These results collectively indicated the tumor-suppressive role of miR-205 in breast cancer by targeting CLDN11; implying miR-205 may serve as a novel therapeutic target for breast cancer.
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Affiliation(s)
- Yupeng Shen
- Medical School of Shaoxing University, Yuecheng, Shaoxing 312000, Zhejiang Province, People's Republic of China
| | - Yingchun Xu
- Department of Breast and Thyroid Surgery, Shaoxing People's Hospital, The First Affiliated Hospital of Shaoxing University, Shaoxing 312000, Zhejiang Province, People's Republic of China
| | - Liming Huang
- Department of Breast and Thyroid Surgery, Shaoxing People's Hospital, The First Affiliated Hospital of Shaoxing University, Shaoxing 312000, Zhejiang Province, People's Republic of China
| | - Yongxin Chi
- Department of Breast and Thyroid Surgery, Shaoxing People's Hospital, The First Affiliated Hospital of Shaoxing University, Shaoxing 312000, Zhejiang Province, People's Republic of China
| | - Liwei Meng
- Department of Breast and Thyroid Surgery, Shaoxing People's Hospital, The First Affiliated Hospital of Shaoxing University, Shaoxing 312000, Zhejiang Province, People's Republic of China
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Wu Y, Jin Y, Sun T, Zhu P, Li J, Zhang Q, Wang X, Jiang J, Chen G, Zhao X. p62/SQSTM1 accumulation due to degradation inhibition and transcriptional activation plays a critical role in silica nanoparticle-induced airway inflammation via NF-κB activation. J Nanobiotechnology 2020; 18:77. [PMID: 32429946 PMCID: PMC7236097 DOI: 10.1186/s12951-020-00634-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 05/12/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Most nanoparticles (NPs) reportedly block autophagic flux, thereby upregulating p62/SQSTM1 through degradation inhibition. p62 also acts as a multifunctional scaffold protein with multiple domains, and is involved in various cellular processes. However, the autophagy substrate-independent role of p62 and its regulation at the transcriptional level upon NPs exposure remain unclear. RESULTS In this work, we exposed BEAS-2b cells and mice to silica nanoparticles (SiNPs), and found that SiNPs increased p62 protein levels in vivo and vitro. Then, we further explored the role and mechanism of SiNPs-stimulated p62 in vitro, and found that p62 degradation was inhibited due to autophagic flux blockade. Mechanistically, SiNPs blocked autophagic flux through impairment of lysosomal capacity rather than defective autophagosome fusion with lysosomes. Moreover, SiNPs stimulated translocation of NF-E2-related factor 2 (Nrf2) to the nucleus from the cytoplasm, which upregulated p62 transcriptional activation through direct binding of Nrf2 to the p62 promoter. Nrf2 siRNA dramatically reduced both the mRNA and protein levels of p62. These two mechanisms led to p62 protein accumulation, thus increasing interleukin (IL)-1 and IL-6 expression. SiNPs activated nuclear factor kappa B (NF-κB), and this effect could be alleviated by p62 knockdown. CONCLUSION SiNPs caused accumulation of p62 through both pre- and post-translational mechanisms, resulting in airway inflammation. These findings improve our understanding of SiNP-induced pulmonary damage and the molecular targets available to mitigate it.
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Affiliation(s)
- Yifan Wu
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nangtong University, Nantong, 226019, China
| | - Yang Jin
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nangtong University, Nantong, 226019, China
| | - Tianyu Sun
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nangtong University, Nantong, 226019, China
| | - Piaoyu Zhu
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nangtong University, Nantong, 226019, China
| | - Jinlong Li
- School of Pharmacy, Nantong University, Nantong, 226001, China
| | - Qinglin Zhang
- Departments of Gastroenterology, Affiliated to Wuxi People's Hospital, Nanjing Medical University, Wuxi, 214023, China
| | - Xiaoke Wang
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nangtong University, Nantong, 226019, China
| | - Junkang Jiang
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nangtong University, Nantong, 226019, China
| | - Gang Chen
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nangtong University, Nantong, 226019, China.
| | - Xinyuan Zhao
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nangtong University, Nantong, 226019, China.
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Hasan NAHM, Harith HH, Israf DA, Tham CL. The differential effects of commercial specialized media on cell growth and transforming growth factor beta 1-induced epithelial-mesenchymal transition in bronchial epithelial cells. Mol Biol Rep 2020; 47:3511-3519. [PMID: 32279207 DOI: 10.1007/s11033-020-05439-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 04/06/2020] [Indexed: 12/17/2022]
Abstract
Epithelial-mesenchymal transition (EMT) is one of the mechanisms that contribute to bronchial remodelling which underlie chronic inflammatory airway diseases such as chronic obstructive pulmonary disorder (COPD) and asthma. Bronchial EMT can be triggered by many factors including transforming growth factor β1 (TGFβ1). The majority of studies on TGFβ1-mediated bronchial EMT used BEGM as the culture medium. LHC-9 medium is another alternative available which is more economical but a less common option. Using normal human bronchial epithelial cells (BEAS-2B) cultured in BEGM as a reference, this study aims to validate the induction of EMT by TGFβ1 in cells cultured in LHC-9. Briefly, the cells were maintained in either LHC-9 or BEGM, and induced with TGFβ1 (5, 10 and 20 ng/ml) for 48 h. EMT induction was confirmed by morphological analysis and EMT markers expression by immunoblotting. In both media, cells induced with TGFβ1 displayed spindle-like morphology with a significantly higher radius ratio compared to non-induced cells which displayed a cobblestone morphology. Correspondingly, the expression of the epithelial marker E-cadherin was significantly lower, whereas the mesenchymal marker vimentin expression was significantly higher in induced cells, compared to non-induced cells. By contrast, a slower cell growth rate was observed in LHC-9 compared to that of BEGM. This study demonstrates that neither LHC-9 nor BEGM significantly influence TGFβ1-induced bronchial EMT. However, LHC-9 is less optimal for bronchial epithelial cell growth compared to BEGM. Thus, LHC-9 may be a more cost-effective substitute for BEGM, provided that time is not a factor.
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Affiliation(s)
- Nur Amilia Hanie Mohamad Hasan
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Hanis Hazeera Harith
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - Daud Ahmad Israf
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Chau Ling Tham
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
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