1
|
Yu HJ, Kim JH, Choi SJ, Cho SD. In vitro antimetastatic potential of pseudolaric acid B in HSC-3 human tongue squamous carcinoma cell line. Arch Oral Biol 2024; 162:105940. [PMID: 38479277 DOI: 10.1016/j.archoralbio.2024.105940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/14/2024] [Accepted: 02/25/2024] [Indexed: 04/17/2024]
Abstract
OBJECTIVE Pseudolaric acid B (PAB) is a novel diterpenoid derived from the traditional Chinese medicinal herb Cortex pseudolaricis that exerts anticancer, anti-inflammatory, and immunomodulatory properties. While the anticancer potential of PAB has been studied, its effects on metastasis have not been well-studied. This study aims to determine the inhibitory effects of PAB on HSC-3 human tongue squamous cell carcinoma (TSCC) cell line. DESIGN Cell viability and soft agar colony formation assays were conducted to assess cellular proliferation and in vitro tumorigenic capacity of TSCC cells, respectively. Additionally, wound healing, transwell migration, and invasion assays were conducted to monitor the aggressive behavior of TSCC cells. Furthermore, Western blotting analysis was conducted to reveal the signaling pathways involved in the modulation of epithelial-mesenchymal transition (EMT). RESULTS The migratory and invasive capacities of HSC-3 cells were suppressed by PAB irrespective of their proliferation states. PAB's effects on EMT involved upregulation of E-cadherin expression and downregulation of Twist; these were concomitantly accompanied by downregulated phosphorylation of epidermal growth factor receptor (EGFR). CONCLUSIONS PAB suppresses human TSCC in vitro by regulating Twist/E-cadherin through the EGFR signaling pathway. PAB may have potential as a candidate antimetastatic drug for TSCC treatment.
Collapse
Affiliation(s)
- Hyun-Ju Yu
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Ji-Hoon Kim
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Su-Jung Choi
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea.
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea.
| |
Collapse
|
2
|
Kim HJ, Ahn MH, Shin JA, Choi SJ, Yu HJ, Cho SD. Caffeic acid phenethyl ester: Unveiling its potential as a potent apoptosis inducer for combating hypopharyngeal squamous cell carcinoma. Oncol Rep 2024; 51:21. [PMID: 38099422 PMCID: PMC10777462 DOI: 10.3892/or.2023.8680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/31/2023] [Indexed: 12/18/2023] Open
Abstract
Hypopharyngeal squamous cell carcinoma (HSCC) is a relatively rare form of head and neck cancer that is notorious for its poor prognosis and low overall survival rate. This highlights the need for new therapeutic options for this malignancy. The objective of the present study was to examine the ability of caffeic acid phenethyl ester (CAPE), which is an active compound found in propolis, to combat HSCC tumor growth. CAPE exerted its tumor‑suppressive activity in HSCC cell lines through the induction of apoptosis. Mechanistically, the CAPE‑mediated apoptotic process was attributed to the perturbation of the mitochondrial membrane potential and the activation of caspase‑9. CAPE also modulated survivin and X‑linked inhibitor of apoptosis, which are potent members of the inhibitors of apoptosis protein family, either through transcriptional or post‑translational regulation, leading to HSCC cell line death. Therefore, the findings of the present study suggested that CAPE is an effective treatment alternative for HSCC via the stimulation of mitochondria‑dependent apoptosis.
Collapse
Affiliation(s)
- Hyun-Ji Kim
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Min-Hye Ahn
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungwon 28116, Republic of Korea
| | - Ji-Ae Shin
- Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Su-Jung Choi
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Hyun-Ju Yu
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| |
Collapse
|
3
|
Park DG, Jin B, Lee WW, Kim HJ, Kim JH, Choi SJ, Hong SD, Shin JA, Cho SD. Apoptotic activity of genipin in human oral squamous cell carcinoma in vitro by regulating STAT3 signaling. Cell Biochem Funct 2023; 41:1319-1329. [PMID: 37792550 DOI: 10.1002/cbf.3866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 09/01/2023] [Accepted: 09/20/2023] [Indexed: 10/06/2023]
Abstract
Genipin, a natural compound derived from the fruit of Gardenia jasminoides Ellis, was reported to have activity against various cancer types. In this study, we determined the underlying mechanism for genipin-induced cell death in human oral squamous cell carcinoma (OSCC). The growth-inhibitory effects of genipin in human OSCC cells was examined by the Cell Counting Kit-8 and soft agar assays. The effects of genipin on apoptosis were assessed by nuclear morphological changes by 4',6-diamidino-2-phenylindole staining, measurement of the sub-G1 population, and Annexin V-fluorescein isothiocyanate/propidium iodide double staining. The underlying mechanism of genipin activity was analyzed by western blot analysis, subcellular fractionation of the nucleus and cytoplasm, immunocytochemistry, and quantitative real-time polymerase chain reaction. Genipin inhibited the growth of OSCC cells and induced apoptosis, which was mediated by a caspase-dependent pathway. Genipin reduced the phosphorylation of signal transducer and activator of transcription 3 (STAT3) at Tyr705 and its nuclear localization. Furthermore, inhibition of p-STAT3Tyr705 levels following genipin treatment was required for the reduction of survivin and myeloid cell leukemia-1 (Mcl-1) expression, leading to apoptotic cell death. The genipin-mediated reduction in survivin and Mcl-1 expression was caused by transcriptional and/or posttranslational regulatory mechanisms. The results provide insight into the regulatory mechanism by which genipin induces apoptotic cell death through the abrogation of nuclear STAT3 phosphorylation and suggest that genipin may represent a potential therapeutic option for the treatment of human OSCC.
Collapse
Affiliation(s)
- Dong-Guk Park
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Bohwan Jin
- Laboratory Animal Center, CHA Biocomplex, CHA University, Seongnam, Republic of Korea
| | - Won W Lee
- Laboratory Animal Center, CHA Biocomplex, CHA University, Seongnam, Republic of Korea
| | - Hyun-Ji Kim
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Ji-Hoon Kim
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Su-Jung Choi
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Seong-Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| |
Collapse
|
4
|
Yu HJ, Shin JA, Choi SJ, Cho SD. Podophyllotoxin reduces the aggressiveness of human oral squamous cell carcinoma through myeloid cell leukemia‑1. Int J Mol Med 2023; 52:103. [PMID: 37711052 PMCID: PMC10619536 DOI: 10.3892/ijmm.2023.5306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/05/2023] [Indexed: 09/16/2023] Open
Abstract
Podophyllotoxin (PPT), which is derived from the podophyllum plant, exhibits marked cytotoxic effects against cancer cells; however, the precise molecular mechanism underlying its activity against human oral squamous cell carcinoma (OSCC) has not been elucidated. In the present study, the mechanism by which PPT induced cytotoxicity in two OSCC cell lines, HSC3 and HSC4, was determined. The effects of PPT on cytotoxicity in HSC3 and HSC4 cells were analyzed using Annexin V/PI double staining, Sub‑G1 analysis, soft agar assays, western blotting, and quantitative PCR. The changes in the mitochondrial membrane potential were assessed using a JC‑1 assay and cytosolic and mitochondrial fractionation. A myeloid cell leukemia‑1 (Mcl‑1) overexpression cell lines were also established to study the role of Mcl‑1 on apoptosis. The results showed that PPT inhibited the growth of the two human OSCC cell lines and induced apoptosis, which was accompanied by mitochondrial membrane depolarization. Compared with the control, PPT reduced the expression of Mcl‑1 in both cell lines through a proteasome‑dependent protein degradation process. Overall, these results suggested that targeting of Mcl‑1 protein by PPT induced apoptosis, providing a foundation for further pre‑clinical and clinical study of its value in the management of OSCC.
Collapse
Affiliation(s)
- Hyun-Ju Yu
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080,
Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080,
Republic of Korea
| | - Su-Jung Choi
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080,
Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080,
Republic of Korea
| |
Collapse
|
5
|
Ahn MH, Kim JH, Choi SJ, Kim HJ, Park DG, Oh KY, Yoon HJ, Hong SD, Lee JI, Shin JA, Cho SD. Neuropilin-2 acts a critical determinant for epithelial-to-mesenchymal transition and aggressive behaviors of human head and neck cancer. Cell Oncol (Dordr) 2023:10.1007/s13402-023-00878-7. [PMID: 37787967 DOI: 10.1007/s13402-023-00878-7] [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] [Accepted: 09/16/2023] [Indexed: 10/04/2023] Open
Abstract
PURPOSE Neuropilin-2 (NRP2) is a multifunctional single-pass transmembrane receptor that binds to two disparate ligands, namely, vascular endothelial growth factors (VEGFs) and semaphorins (SEMAs). It is reportedly involved in neuronal and vascular development. In this study, we uncovered the exact functional role of NRP2 and its molecular mechanism during aggressive behaviors and lymph node (LN) metastasis in human head and neck cancer (HNC) and identified algal methanol extract as a potential novel NRP2 inhibitor. METHODS In silico analyses and immunohistochemistry were used to investigate the relationship between NRP2 expression and the prognosis of HNC patients. The functional role of NRP2 on the proliferation, migration, invasion, and cancer stem cell (CSC) properties of HNC cells was examined by MTS, soft agar, clonogenic, transwell migration and invasion assays, and sphere formation assays. Signaling explorer antibody array, western blot, and qPCR were performed toward the investigation of a molecular mechanism that is related to NRP2. RESULTS NRP2 was highly expressed in HNC and positively correlated with LN metastasis and advanced tumor stage and size in patients. Using loss- or gain-of-function approaches, we found that NRP2 promoted the proliferative, migratory, and invasive capacities of human HNC cells. Furthermore, NRP2 regulated Sox2 expression to exhibit aggressiveness and CSC properties of human HNC cells. We demonstrated that p90 ribosomal S6 kinase 1 (RSK1) elevates the aggressiveness and CSC properties of human HNC cells, possibly by mediating NRP2 and Sox2. Zeb1 was necessary for executing the NRP2/RSK1/Sox2 signaling pathway during the induction of epithelial-to-mesenchymal transition (EMT) and aggressive behaviors of human HNC cells. Moreover, the methanol extract of Codium fragile (MECF) repressed NRP2 expression, inhibiting the RSK1/Sox2/Zeb1 axis, which contributed to the reduction of aggressive behaviors of human HNC cells. CONCLUSIONS These findings suggest that NRP2 is a critical determinant in provoking EMT and aggressive behaviors in human HNC through the RSK1/Sox2/Zeb1 axis, and MECF may have the potential to be a novel NRP2 inhibitor for treating metastasis in HNC patients.
Collapse
Affiliation(s)
- Min-Hye Ahn
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
- Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongwon, 28116, Republic of Korea
| | - Ji-Hoon Kim
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Su-Jung Choi
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Hyun-Ji Kim
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Dong-Guk Park
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Kyu-Young Oh
- Department of Oral Pathology, College of Dentistry, Dankook University, Cheonan, Republic of Korea
| | - Hye-Jung Yoon
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Seong-Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Jae-Il Lee
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea.
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea.
| |
Collapse
|
6
|
Han EJ, Choi EY, Jeon SJ, Lee SW, Moon JM, Jung SH, Kim B, Cho SD, Nam JS, Choi C, Che JH, Jung JY. Piperlongumine induces apoptosis and autophagy via the PI3K/Akt/mTOR pathway in KB human cervical cancer cells. Food Chem Toxicol 2023; 180:114051. [PMID: 37734464 DOI: 10.1016/j.fct.2023.114051] [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: 06/14/2023] [Revised: 08/02/2023] [Accepted: 09/18/2023] [Indexed: 09/23/2023]
Abstract
Natural products are continuously being researched to develop safe and effective treatment options for cervical cancer, the fourth most common cancer in women. Piperlongumine (PL), an amide alkaloid mainly present in long pepper, exhibits neuroprotective and anti-cancer properties. However, the specific effect of PL in cervical cancer and the relationship between the anti-cancer pathway and autophagy remain unclear. Therefore, we aimed to investigate PL-induced apoptosis in KB human cervical cancer cells and the relationship between apoptosis and autophagy therein. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and wound-healing assays showed that PL treatment suppressed KB cell viability and proliferation. Apoptosis was identified through 4',6-diamidino-2-phenylindole and annexin V-propidium iodide staining, increased cleaved-poly (ADP-ribose) polymerase and Bcl-2 associated X levels, and decreased B cell lymphoma 2 levels. Acridine orange staining and increased microtubule-associated protein 1A/1B-light chain 3-II and Beclin-1 levels confirmed autophagy. We determined that KB cell-related autophagy exerted cytoprotective effects using the autophagy inhibitors 3-methyladenine and hydroxychloroquine. PL treatment promoted apoptosis by inhibiting the phosphatidylinositol-3-kinase (PI3K)/protein kinase B/mammalian target of rapamycin pathway in KB cells; inhibiting the pathway using PI3K inhibitors increased autophagy. We suggest that PL is a potential natural anticancer agent for cervical cancer treatment.
Collapse
Affiliation(s)
- Eun-Ji Han
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - Eun-Young Choi
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - Su-Ji Jeon
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - Sang-Woo Lee
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - Jun-Mo Moon
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - Soo-Hyun Jung
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - Bumseok Kim
- College of Veterinary Medicine and Bio-Safety Research Institute, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Jeong-Seok Nam
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Changsun Choi
- School of Food Science and Technology, Chung-ang University, Ansung, 17546, Republic of Korea
| | - Jeong-Hwan Che
- Biomedical Center for Animal Resource Development, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea; Biomedical Research Institute, Seoul National University Hospital, Seoul, 03080, Republic of Korea
| | - Ji-Youn Jung
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea; Research Institute for Natural Products, Kongju National University, Yesan, 32439, Republic of Korea.
| |
Collapse
|
7
|
Hyun J, Kim SJ, Cho SD, Kim HW. Mechano-modulation of T cells for cancer immunotherapy. Biomaterials 2023; 297:122101. [PMID: 37023528 DOI: 10.1016/j.biomaterials.2023.122101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 03/12/2023] [Accepted: 03/23/2023] [Indexed: 04/03/2023]
Abstract
Immunotherapy, despite its promise for future anti-cancer approach, faces significant challenges, such as off-tumor side effects, innate or acquired resistance, and limited infiltration of immune cells into stiffened extracellular matrix (ECM). Recent studies have highlighted the importance of mechano-modulation/-activation of immune cells (mainly T cells) for effective caner immunotherapy. Immune cells are highly sensitive to the applied physical forces and matrix mechanics, and reciprocally shape the tumor microenvironment. Engineering T cells with tuned properties of materials (e.g., chemistry, topography, and stiffness) can improve their expansion and activation ex vivo, and their ability to mechano-sensing the tumor specific ECM in vivo where they perform cytotoxic effects. T cells can also be exploited to secrete enzymes that soften ECM, thus increasing tumor infiltration and cellular therapies. Furthermore, T cells, such as chimeric antigen receptor (CAR)-T cells, genomic engineered to be spatiotemporally controllable by physical stimuli (e.g., ultrasound, heat, or light), can mitigate adverse off-tumor effects. In this review, we communicate these recent cutting-edge endeavors devoted to mechano-modulating/-activating T cells for effective cancer immunotherapy, and discuss future prospects and challenges in this field.
Collapse
|
8
|
Yu HJ, Shin JA, Cho SD. Inhibition of focal adhesion kinase/paxillin axis by caffeic acid phenethyl ester restrains aggressive behaviors of head and neck squamous cell carcinoma in vitro. Arch Oral Biol 2023; 146:105611. [PMID: 36577313 DOI: 10.1016/j.archoralbio.2022.105611] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/06/2022] [Accepted: 12/23/2022] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Caffeic acid phenethyl ester (CAPE), one of the components of propolis that is produced by honeybees, reportedly suppresses multiple diseases, including bacterial infection, inflammation, and cancer. We aimed to investigate the inhibitory effects of CAPE on epithelial-mesenchymal transition (EMT) status and aggressive behaviors of human head and neck squamous cell carcinoma (HNSCC) in vitro and the underlying signaling pathway. DESIGN To examine the cell growth and in vitro tumorigenic potential of HNSCC cells, cell viability and soft agar colony formation assays, respectively, were performed. Transwell migration and invasion assays were conducted to monitor HNSCC cells' aggressive behaviors. Western blotting and immunocytochemistry analyses were done to investigate the signaling pathway responsible for relieving EMT progression and HNSCC cell aggressiveness. RESULTS CAPE inhibited the in vitro tumorigenic potential of SNU-1041 cells stimulated by epidermal growth factor and suppressed the migratory and invasive capacities of SNU-1041 cells, irrespective of their cell proliferation state. CAPE was, at least partially, capable of inhibiting EMT progression by upregulating E-cadherin expression, which was accompanied by the reduction of phosphorylated focal adhesion kinase (FAK) and Paxillin. The inhibition of the FAK/Paxillin axis by PF-562271 was sufficient to alleviate the EMT progression through the induction of E-cadherin and aggressive behaviors of SNU-1041 cells. CONCLUSIONS CAPE has a therapeutic potential as an anti-metastatic drug candidate for HNSCC therapy targeting the FAK/Paxillin axis.
Collapse
Affiliation(s)
- Hyun-Ju Yu
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea.
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea.
| |
Collapse
|
9
|
Ahn CH, Oh KY, Jin B, Lee WW, Kim J, Kim HJ, Park DG, Swarup N, Chawla K, Ryu MH, Kim UK, Choi SJ, Yoon HJ, Hong SD, Shin JA, Cho SD. Targeting tumor-intrinsic PD-L1 suppresses the progression and aggressiveness of head and neck cancer by inhibiting GSK3β-dependent Snail degradation. Cell Oncol (Dordr) 2022; 46:267-282. [PMID: 36441378 DOI: 10.1007/s13402-022-00748-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2022] [Indexed: 11/29/2022] Open
Abstract
PURPOSE PD-L1 is an immune checkpoint protein that allows cells to evade T-cell-mediated immune responses. Herein, we uncover a tumor-intrinsic mechanism of PD-L1 that is responsible for the progression and aggressiveness of HNC and reveal that the extracts of a brown alga can target the tumor-intrinsic signaling pathway of PD-L1. METHODS The biological functions of PD-L1 in the proliferation and aggressiveness of HNC cells in vitro were examined by metabolic activity, clonogenic, tumorigenicity, wound healing, migration, and invasion assays. The clinical importance of PD-L1 in the prognosis of patients with HNC was analyzed by immunohistochemistry. The relationship between PD-L1 and EMT was confirmed via western blotting, qPCR, and immunocytochemistry. RESULTS Through our in silico approach, we found that PD-L1 was upregulated in HNC and was correlated with an unfavorable clinical outcome in patients with HNC. PD-L1 was crucial for promoting tumor growth, both in vitro and in vivo. High expression of PD-L1 was closely correlated with LN metastasis in OSCC. PD-L1 facilitated the cytoskeletal reorganization and aggressiveness of HNC cells. Moreover, PD-L1 enhanced the EMT of HNC cells by regulating the Snail/vimentin axis. Consistently, MEIO suppressed the PD-L1/Snail/vimentin axis, thereby inhibiting the aggressiveness of HNC cells. Inhibition of PD-L1 induced by PD-L1 silencing or MEIO treatment caused Snail degradation through a GSK3β-dependent mechanism. The tumor-intrinsic function of PD-L1 could be attributed to the regulation of the GSK3β/Snail/vimentin axis. CONCLUSION The discovery of MEIO targeting the tumor-intrinsic function of PD-L1 may prove particularly valuable for the development of novel and effective anticancer drug candidates for HNCs overexpressing PD-L1.
Collapse
|
10
|
Lee JH, Yoo ES, Han SH, Jung GH, Han EJ, Choi EY, Jeon SJ, Jung SH, Kim B, Cho SD, Nam JS, Choi C, Che JH, Jung JY. Chrysin Induces Apoptosis and Autophagy in Human Melanoma Cells via the mTOR/S6K Pathway. Biomedicines 2022; 10:biomedicines10071467. [PMID: 35884773 PMCID: PMC9312811 DOI: 10.3390/biomedicines10071467] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/14/2022] [Accepted: 06/17/2022] [Indexed: 11/18/2022] Open
Abstract
Chrysin is known to exert anti-inflammatory, antioxidant, and anticancer effects. The aim of this study was to investigate the anticancer effects of chrysin in the human melanoma cells A375SM and A375P. The results obtained demonstrated successful inhibition of the viability of these cells by inducing apoptosis and autophagy. This was confirmed by the level of apoptosis-related proteins: Bax and cleaved poly (ADP-ribose) polymerase both increased, and Bcl-2 decreased. Moreover, levels of LC3 and Beclin 1, both autophagy-related proteins, increased in chrysin-treated cells. Autophagic vacuoles and acidic vesicular organelles were observed in both cell lines treated with chrysin. Both cell lines showed different tendencies during chrysin-induced autophagy inhibition, indicating that autophagy has different effects depending on the cell type. In A375SM, the early autophagy inhibitor 3-methyladenine (3-MA) was unaffected; however, cell viability decreased when treated with the late autophagy inhibitor hydroxychloroquine (HCQ). In contrast, HCQ was unaffected in A375P; however, cell viability increased when treated with 3-MA. Chrysin also decreased the phosphorylation of mTOR/S6K pathway proteins, indicating that this pathway is involved in chrysin-induced apoptosis and autophagy for A375SM and A375P. However, studies to elucidate the mechanisms of autophagy and the action of chrysin in vivo are still needed.
Collapse
Affiliation(s)
- Jae-Han Lee
- Department of Companion, Laboratory Animal Science, Kongju National University, Yesan 32439, Korea; (J.-H.L.); (E.-S.Y.); (S.-H.H.); (G.-H.J.); (E.-J.H.); (E.-Y.C.); (S.-j.J.); (S.-H.J.)
| | - Eun-Seon Yoo
- Department of Companion, Laboratory Animal Science, Kongju National University, Yesan 32439, Korea; (J.-H.L.); (E.-S.Y.); (S.-H.H.); (G.-H.J.); (E.-J.H.); (E.-Y.C.); (S.-j.J.); (S.-H.J.)
| | - So-Hee Han
- Department of Companion, Laboratory Animal Science, Kongju National University, Yesan 32439, Korea; (J.-H.L.); (E.-S.Y.); (S.-H.H.); (G.-H.J.); (E.-J.H.); (E.-Y.C.); (S.-j.J.); (S.-H.J.)
| | - Gi-Hwan Jung
- Department of Companion, Laboratory Animal Science, Kongju National University, Yesan 32439, Korea; (J.-H.L.); (E.-S.Y.); (S.-H.H.); (G.-H.J.); (E.-J.H.); (E.-Y.C.); (S.-j.J.); (S.-H.J.)
| | - Eun-Ji Han
- Department of Companion, Laboratory Animal Science, Kongju National University, Yesan 32439, Korea; (J.-H.L.); (E.-S.Y.); (S.-H.H.); (G.-H.J.); (E.-J.H.); (E.-Y.C.); (S.-j.J.); (S.-H.J.)
| | - Eun-Young Choi
- Department of Companion, Laboratory Animal Science, Kongju National University, Yesan 32439, Korea; (J.-H.L.); (E.-S.Y.); (S.-H.H.); (G.-H.J.); (E.-J.H.); (E.-Y.C.); (S.-j.J.); (S.-H.J.)
| | - Su-ji Jeon
- Department of Companion, Laboratory Animal Science, Kongju National University, Yesan 32439, Korea; (J.-H.L.); (E.-S.Y.); (S.-H.H.); (G.-H.J.); (E.-J.H.); (E.-Y.C.); (S.-j.J.); (S.-H.J.)
| | - Soo-Hyun Jung
- Department of Companion, Laboratory Animal Science, Kongju National University, Yesan 32439, Korea; (J.-H.L.); (E.-S.Y.); (S.-H.H.); (G.-H.J.); (E.-J.H.); (E.-Y.C.); (S.-j.J.); (S.-H.J.)
| | - Bumseok Kim
- College of Veterinary Medicine, Bio-Safety Research Institute, Jeonbuk National University, Iksan 54896, Korea;
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry, Dental Research Institute, Seoul National University, Seoul 03080, Korea;
| | - Jeong-Seok Nam
- Gwangju Institute of Science and Technology, School of Life Sciences, Gwangju 61005, Korea;
| | - Changsun Choi
- School of Food Science and Technology, Chung-ang University, Ansung 17456, Korea;
| | - Jeong-Hwan Che
- Biomedical Center for Animal Resource Development, Seoul National University College of Medicine, Seoul 03080, Korea;
- Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea
| | - Ji-Youn Jung
- Department of Companion, Laboratory Animal Science, Kongju National University, Yesan 32439, Korea; (J.-H.L.); (E.-S.Y.); (S.-H.H.); (G.-H.J.); (E.-J.H.); (E.-Y.C.); (S.-j.J.); (S.-H.J.)
- Correspondence:
| |
Collapse
|
11
|
Oh KY, Cho SD, Hong SD, Lee JI, Yoon HJ. Reappraisal of tubulopapillary hidradenoma-like tumor of the mandible: Suggested change in nomenclature to reflect tumor origin. Oral Surg Oral Med Oral Pathol Oral Radiol 2022; 134:465-469. [DOI: 10.1016/j.oooo.2022.05.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/15/2022] [Accepted: 05/31/2022] [Indexed: 10/18/2022]
|
12
|
Ahn MH, Shin JA, Yang SO, Choi WS, Jang S, Kang SC, Cho SD. Metabolite profiling of a Sargassum micracanthum methanol extract with in vitro efficacy against human head and neck squamous cell carcinoma aggressiveness. Arch Oral Biol 2022; 137:105386. [PMID: 35272061 DOI: 10.1016/j.archoralbio.2022.105386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 02/15/2022] [Accepted: 02/20/2022] [Indexed: 01/18/2023]
Abstract
OBJECTIVE Extracts from the brown algae Sargassum micracanthum have documented anti-viral, anti-oxidant, and anti-inflammatory activities as well as potential anti-tumor efficacy against several cancer types. Here, we evaluated the inhibitory effect and molecular mechanisms of methanol extract of S. micracanthum (MESM) on the aggressiveness of human head and neck squamous cell carcinoma (HNSCC) using in vitro cell culture-based models. DESIGN To test the potential efficacy of MESM on the migratory and invasive properties of HNSCC cells, we used wound healing, transwell cell migration and invasion assays. Proteome profiling and functional in silico analysis were applied to investigate the possible modes of action by MESM. We also examined the metabolite profiling of MESM using gas chromatography/mass spectrometry. RESULTS MESM inhibited the motility of human HNSCC cell lines as well as invasiveness without influencing cell survival. Proteome profiling identified 19 oncogenic proteins significantly downregulated by MESM treatment. Protein-protein interaction network and gene ontology analyses revealed that Tie2 and associated angiogenic signaling pathway components were significantly enriched among these downregulated oncogenic proteins, which was confirmed by validating the reduced Tie2 expression in MESM treatment groups. Metabolite profiling of MESM identified six-carbon sugar alcohols such as D-sorbitol and/or D-mannitol as the main bioactive compounds. D-sorbitol and D-mannitol effectively reduced Tie2 expression and the aggressiveness of human HNSCC cell lines. CONCLUSIONS These findings suggest that six-carbon sugar alcohols in MESM have promising anti-cancer efficacy for the treatment of human HNSCC and further identify Tie2 signaling components as potential treatment targets.
Collapse
Affiliation(s)
- Min-Hye Ahn
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Seung-Ok Yang
- National Instrumentation Center for Environmental Management, Seoul National University, Seoul 08826, Republic of Korea
| | - Won-Sil Choi
- National Instrumentation Center for Environmental Management, Seoul National University, Seoul 08826, Republic of Korea
| | - Soojin Jang
- Department of Oral Pathology, School of Dentistry, Seoul National University, Seoul 03080, Republic of Korea
| | - Se-Chan Kang
- Graduate School of Biotechnology and Department of Oriental Medicinal Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea.
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea.
| |
Collapse
|
13
|
Oh KY, Kim JH, Cho SD, Yoon HJ, Lee JI, Hong SD. BRAF V600E and previously unidentified KRAS G12C mutations in odontogenic tumors may affect MAPK activation differently depending on tumor type. Genes Chromosomes Cancer 2022; 61:481-490. [PMID: 35353428 DOI: 10.1002/gcc.23040] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 11/10/2022] Open
Abstract
Although several types of odontogenic tumors share the same mutations in MAPK pathway genes, their effects on MAPK activation remain unclarified. This study aimed to evaluate the associations between these mutations and ERK phosphorylation in ameloblastoma and mixed odontogenic tumors (MOTs) and to analyze the expression pattern of phosphorylated ERK (p-ERK) for determining the involvement of MAPK activation in the development and progression of odontogenic tumors. Forty-three odontogenic tumors consisting of 18 ameloblastomas and 25 MOTs were analyzed for BRAF, KRAS, and NRAS mutations by Sanger sequencing. The expressions of BRAFV600E protein and p-ERK were detected by immunohistochemistry. The associations of mutation status and p-ERK expression were statistically analyzed. In ameloblastoma cells, the effect of BRAFV600E inhibition on MAPK activation was investigated. In benign MOTs, BRAFV600E mutations were neither expressed at the protein level nor associated with p-ERK expression. In contrast, BRAFV600E -mutant ameloblastic fibrosarcoma showed co-expression of BRAF V600E protein and p-ERK, especially in the sarcomatous component. In ameloblastoma, p-ERK was predominantly expressed in the tumor periphery showing a significant correlation with BRAFV600E mutations, and in vitro BRAFV600E inhibition decreased ERK phosphorylation. KRASG12C mutations, previously unidentified in odontogenic tumors, were detected in one case each of benign MOT and ameloblastoma; only the latter was high-p-ERK. In conclusion, unlike in benign MOTs, BRAFV600E and KRASG12C mutations lead to MAPK activation in ameloblastoma, suggesting their role as therapeutic targets. p-ERK intratumoral heterogeneity indicates that MAPK pathway activation may be associated with sarcomatous proliferation of ameloblastic fibrosarcoma and infiltrative behavior of ameloblastoma. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Kyu-Young Oh
- Department of Oral Pathology, Seoul National University Dental Hospital, Seoul, Republic of Korea.,Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Ji-Hoon Kim
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, Seoul National University Dental Hospital, Seoul, Republic of Korea.,Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Hye-Jung Yoon
- Department of Oral Pathology, Seoul National University Dental Hospital, Seoul, Republic of Korea.,Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Jae-Il Lee
- Department of Oral Pathology, Seoul National University Dental Hospital, Seoul, Republic of Korea.,Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Seong-Doo Hong
- Department of Oral Pathology, Seoul National University Dental Hospital, Seoul, Republic of Korea.,Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| |
Collapse
|
14
|
Geum DH, Hwang DS, Lee CH, Cho SD, Jang MA, Ryu MH, Kim UK. PD-L1 Expression Correlated with Clinicopathological Factors and Akt/Stat3 Pathway in Oral SCC. Life (Basel) 2022; 12:life12020238. [PMID: 35207525 PMCID: PMC8875073 DOI: 10.3390/life12020238] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 12/30/2021] [Revised: 01/30/2022] [Accepted: 01/31/2022] [Indexed: 11/28/2022] Open
Abstract
Programmed cell death ligand 1 (PD-L1) is an immune checkpoint molecule that inhibits immune responses. The physiological and prognostic role of the PD-L1 signaling pathway in the oral maxillofacial region is unclear. This study aimed to investigate the role of PD-L1 in the progression of oral squamous cell carcinoma (OSCC). Furthermore, clinicopathological factors related to PD-L1 expression were examined in patients with OSCC through immunohistochemistry (IHC) of tissue sections and through an in vitro study in OSCC cells. The medical records, radiographic findings, and mortality referrals of 81 patients obtained from the National Statistical Office were reviewed. IHC was performed on tissue specimens of these patients to determine the expression levels of PD-L1, which showed significant statistical differences based on age, tumor size, TNM stage, cervical lymph node metastasis, and locoregional recurrence. Patients with a high PD-L1 expression had significantly poorer survival rates. Multivariate analysis using the Cox proportional model confirmed the high relative risk ratio for high PD-L1 expression, TNM stage, and neck node metastasis, all of which were significantly associated with a poor prognosis in patients with OSCC. The in vitro study showed that SAS and YD38 cells transfected with PD-L1 siRNA had significantly increased apoptosis, reduced proliferative capacity, and tumorigenicity.
Collapse
Affiliation(s)
- Dong-Ho Geum
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, 49, Busandaehak-ro, Mulgeum-eup, Yangsan 50612, Korea; (D.-H.G.); (D.-S.H.)
| | - Dae-Seok Hwang
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, 49, Busandaehak-ro, Mulgeum-eup, Yangsan 50612, Korea; (D.-H.G.); (D.-S.H.)
| | - Chang-Hun Lee
- Department of Pathology, School of Medicine, Pusan National University, 49, Busandaehak-ro, Mulgeum-eup, Yangsan 50612, Korea;
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Korea;
| | - Min-A Jang
- Dental and Life Science Institute, Pusan National University, 49, Busandaehak-ro, Mulgeum-eup, Yangsan 50612, Korea;
| | - Mi-Heon Ryu
- Department of Oral Pathology, Dental and Life Science Institute, School of Dentistry, Pusan National University, 49, Busandaehak-ro, Mulgeum-eup, Yangsan 50612, Korea
- Correspondence: (M.-H.R.); (U.-K.K.); Tel.: +82-51-510-8251 (M.-H.R.); +82-55-360-5112 (U.-K.K.); Fax: +82-51-510-8249 (M.-H.R.); +82-55-360-5104 (U.-K.K.)
| | - Uk-Kyu Kim
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, 49, Busandaehak-ro, Mulgeum-eup, Yangsan 50612, Korea; (D.-H.G.); (D.-S.H.)
- Correspondence: (M.-H.R.); (U.-K.K.); Tel.: +82-51-510-8251 (M.-H.R.); +82-55-360-5112 (U.-K.K.); Fax: +82-51-510-8249 (M.-H.R.); +82-55-360-5104 (U.-K.K.)
| |
Collapse
|
15
|
Lee JH, Yoo ES, Han SH, Jung GH, Han EJ, Jung SH, Seok Kim B, Cho SD, Nam JS, Choi C, Che JH, Jung JY. Oleanolic acid induces apoptosis and autophagy via the PI3K/AKT/mTOR pathway in AGS human gastric cancer cells. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
|
16
|
Shin JA, Won DH, Swarup N, Ahn MH, Yang SO, Chawla K, Kim J, Choi SJ, Ahn CH, Oh KY, Yoon HJ, Lee JI, Hong SD, Hong KO, Cho SD. Methanol extract of Sedum oryzifolium and its constituent, trehalose, impede the invasiveness of oral squamous cell carcinoma cell lines via downregulation of Slug. Phytomedicine 2021; 91:153670. [PMID: 34391081 DOI: 10.1016/j.phymed.2021.153670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 12/30/2020] [Revised: 06/29/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Sedum species are reported to possess diverse pharmacological activities in various solid tumors. However, the anticancer functions of Sedum orizyfolium and its constituents have never been determined in human cancers. PURPOSE The present study focused on addressing the inhibition efficacy of the methanol extract of S. orizyfolium (MESO) and its constituents and the molecular mechanism underlying invasion and epithelial-to-mesenchymal transition (EMT) in oral squamous cell carcinoma (OSCC) cell lines. STUDY DESIGN/METHODS After MESO treatment, a wound-healing assay, an invasion assay, and immunocytochemistry were performed in OSCC cell lines, coupled with in silico analysis and immunohistochemistry in OSCC patient samples, to investigate the role of the EMT transcription factor Slug. Trehalose, an active component of MESO, was identified through gas chromatography-mass spectrometry. RESULTS Among the methanol extracts of 18 various wild plants from South Korea, MESO exhibited the highest anticancer functionality in OSCC cells by downregulating Slug expression. In silico analysis and immunohistochemistry indicated that elevated Slug levels are remarkably associated with tumor progression and invasion in patients with OSCC, suggesting that changes in Slug expression alter EMT progression and invasion in OSCC. Notably, treatment with trehalose, a sugar component of MESO, inhibited invasiveness and Slug expression in OSCC cells. CONCLUSION Cumulatively, this study highlighted the beneficial role of MESO and trehalose in the inhibition of invasiveness of OSCC cells via suppression of Slug expression and suggested a new design for potential chemotherapeutic drugs against OSCC.
Collapse
Affiliation(s)
- Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Dong-Hoon Won
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Neeti Swarup
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Min-Hye Ahn
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Seung-Ok Yang
- National Instrumentation Center for Environmental Management, Seoul National University, Seoul 08826, Republic of Korea
| | - Kunal Chawla
- Department of Computer Science, School of Interactive Computing, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - Jihoon Kim
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Su-Jung Choi
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Chi-Hyun Ahn
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Kyu-Young Oh
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Hye-Jung Yoon
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Jae-Il Lee
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Seong-Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Kyoung-Ok Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea.
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea.
| |
Collapse
|
17
|
Choi SJ, Ahn CH, Hong KO, Kim JH, Hong SD, Shin JA, Cho SD. Molecular mechanism underlying the apoptotic modulation by ethanol extract of Pseudolarix kaempferi in mucoepidermoid carcinoma of the salivary glands. Cancer Cell Int 2021; 21:427. [PMID: 34391437 PMCID: PMC8364062 DOI: 10.1186/s12935-021-02134-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 08/03/2021] [Indexed: 11/11/2022] Open
Abstract
Background Pseudolarix kaempferi is a traditional Chinese natural product that possesses the potential cytotoxic effects against cancer. However, the precise molecular mechanism underlying its cytotoxic effects has not yet been completely elucidated. Here, we clarify the mechanism via which the ethanol extract of P. kaempferi (EEPK) leads to cytotoxicity mediated by apoptosis in mucoepidermoid carcinoma (MEC) originating from the salivary glands. Methods We investigated the mechanism underlying the anticancer efficacy of EEPK in human MEC in vitro by assessing mitochondrial dysfunction, mRNA levels, and morphological changes in apoptotic cell nuclei as well as by using a cytotoxicity assay, flow cytometric analysis, and western blotting. Results EEPK inhibited the growth of two human MEC cells and stimulated the induction of caspase-mediated apoptosis that was accompanied by mitochondrial membrane depolarization. Compared with the vehicle control groups, EEPK decreased myeloid cell leukemia-1 (Mcl-1) expression in both cells whereas it significantly decreased B cell lymphoma-2 (Bcl-2) expression in MC3 cells only. The EEPK-induced altered Mcl-1 expression was caused by translational inhibition and proteasomal degradation. Additionally, EEPK significantly increased p-Bcl-2 (Ser70) expression regardless of its total forms by facilitating the activation of the c-Jun N-terminal kinase (JNK) signaling pathway, which exhibited cell context dependency. Nevertheless, JNK activation following EEPK treatment was, at least in part, required for the proapoptotic efficacy of EEPK in both cells. Conclusions This study revealed that EEPK-induced alterations of Mcl-1 inhibition and JNK/Bcl-2 phosphorylation cause apoptosis and provided basic preclinical data for future clinical trials regarding therapy for patients with MEC. Graphic abstract ![]()
Collapse
Affiliation(s)
- Su-Jung Choi
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 03080, Seoul, Republic of Korea
| | - Chi-Hyun Ahn
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 03080, Seoul, Republic of Korea.,51-9, HLB Life Science Co., Ltd., Dongtancheomdansaneop 1-ro, 8f, Gyeonggi-do, 18469, Hwaseong-si, Republic of Korea
| | - Kyoung-Ok Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 03080, Seoul, Republic of Korea.,, 412Ho, Healthcare Innovation Park, 172 Dolma-ro, Bundang-gu, Gyeonggi-do, 13605, Seongnam-si, Republic of Korea
| | - Ji-Hoon Kim
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 03080, Seoul, Republic of Korea
| | - Seong-Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 03080, Seoul, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 03080, Seoul, Republic of Korea.
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 03080, Seoul, Republic of Korea.
| |
Collapse
|
18
|
Oh KY, Kim JE, Cho SD, Yoon HJ, Lee JI, Hong SD. Orthokeratinized odontogenic cyst: A large series and comprehensive literature review with emphasis on synchronous multiple occurrence and neoplastic transformation. Oral Surg Oral Med Oral Pathol Oral Radiol 2021; 133:e72-e82. [PMID: 34511349 DOI: 10.1016/j.oooo.2021.07.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/21/2021] [Accepted: 07/13/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVES The objective of this study was to demonstrate the clinical, radiologic, and histologic features of orthokeratinized odontogenic cyst (OOC); determine the characteristics of multiple OOCs; and present rare but significant manifestations of OOC. STUDY DESIGN A clinical, radiologic, and histopathologic study of 65 primary and 2 recurrent OOC cases was performed retrospectively along with a comprehensive literature review. RESULTS OOCs shared similar radiologic findings with odontogenic keratocyst, yet some showed features that have not been previously described: root resorption and radiopaque foci. Histologic review revealed a unique histiocytic lining and some findings suggestive of the multipotentiality of the odontogenic epithelium. The analysis of patients with multiple OOCs demonstrated that multiple OOCs occurred synchronously with a marked predilection for young male adults. Two unusual cases were also identified: an OOC combined with a BRAFV600E ameloblastoma and a recurrent OOC with malignant transformation. CONCLUSIONS This largest series presents previously unreported radiographic and histopathologic features that can be seen in OOC. Multiple OOCs have clinical characteristics distinct from those of solitary cases. The first reported OOC associated with ameloblastoma suggests the involvement of oncogenic mutations in odontogenic tumorigenesis. Although OOC shows a low recurrence rate, the possibility of malignant transformation of recurrent OOCs should be emphasized.
Collapse
Affiliation(s)
- Kyu-Young Oh
- Department of Oral Pathology, Seoul National University Dental Hospital, Seoul, Republic of Korea
| | - Jo-Eun Kim
- Department of Oral and Maxillofacial Radiology, Seoul National University Dental Hospital, Seoul, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, Seoul National University Dental Hospital, Seoul, Republic of Korea; Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Hye-Jung Yoon
- Department of Oral Pathology, Seoul National University Dental Hospital, Seoul, Republic of Korea; Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Jae-Il Lee
- Department of Oral Pathology, Seoul National University Dental Hospital, Seoul, Republic of Korea; Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Seong-Doo Hong
- Department of Oral Pathology, Seoul National University Dental Hospital, Seoul, Republic of Korea; Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea.
| |
Collapse
|
19
|
Jung M, Han DJ, Ahn CH, Hong KO, Choi YS, Kim JS, Yoon HJ, Hong SD, Shin JA, Cho SD. In vitro induction of mitotic catastrophe as a therapeutic approach for oral cancer using the ethanolic extract of Juniperus squamata. Oncol Rep 2021; 45:103. [PMID: 33907849 DOI: 10.3892/or.2021.8054] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 03/26/2021] [Indexed: 11/06/2022] Open
Abstract
Mitotic catastrophe, a cell death mechanism characterized by abnormal mitosis, has been regarded as a therapeutic approach for the development of anti‑cancer drug candidates. The aim of the present study was to investigate the potential effect of the ethanolic extract of Juniperus squamata (EEJS) on the occurrence of mitotic catastrophe in human oral cancer cell lines. The effect of EEJS on the occurrence of mitotic catastrophe was evaluated by measuring cytotoxicity, observing phase‑contrast or transmission electron microscope findings, evaluating the appearance of microtubule or chromosome abnormalities, and detecting the phosphorylation of histone H3 (Ser10). The apoptotic effect of EEJS was assessed by detecting cleaved PARP, analyzing the sub‑G1 population, Annexin V‑FITC/PI double staining, western blot analysis, and the transient transfection of myeloid cell leukemia‑1 (Mcl‑1) overexpression vectors. EEJS treatment was effective in inhibiting cell proliferation in human oral cancer cell lines. EEJS resulted in the enrichment of enlarged multinucleated cells, the disturbance of microtubule formation, and increased phosphorylation of histone H3 (Ser10), which demonstrates the occurrence of mitotic catastrophe. Additionally, the multinucleated cells underwent apoptotic cell death in a cell context‑dependent manner, which was associated with the reduction of Mcl‑1 protein levels. Findings of the present study indicate that EEJS could be effective for treating human oral cancer by promoting mitotic catastrophe linked to apoptotic cell death.
Collapse
Affiliation(s)
- Minjung Jung
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Dae Jin Han
- School of Dentistry, Seoul National University, Seoul 03080, Republic of Korea
| | - Chi-Hyun Ahn
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Kyoung-Ok Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Youn Soo Choi
- Department of Medicine, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Jun Sung Kim
- Research and Development Center, H‑MED Incorporated, Seoul 03761, Republic of Korea
| | - Hye-Jung Yoon
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Seong Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| |
Collapse
|
20
|
Hong KO, Oh KY, Yoon HJ, Swarup N, Jung M, Shin JA, Kim JH, Chawla K, Lee JI, Cho SD, Hong SD. SOX7 blocks vasculogenic mimicry in oral squamous cell carcinoma. J Oral Pathol Med 2021; 50:766-775. [PMID: 33733517 DOI: 10.1111/jop.13176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 12/06/2020] [Revised: 02/16/2021] [Accepted: 03/08/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Vasculogenic mimicry (VM) is the formation of an alternative circulatory system by aggressive tumor cells. The characteristics of VM and its underlying mechanism in oral squamous cell carcinoma (OSCC) remain unclear. This study aims to determine the relationship between VM in OSCC tissues and clinical outcomes and to investigate the biological role of SOX7 in VM in OSCC cells. METHODS CD31/PAS staining was performed to evaluate VM in OSCC tissue. The relationships between VM and clinicopathological variables, and VM and SOX7 levels were analyzed. The correlation between SOX7 levels and cancer cohorts was investigated using in silico analysis. VM formation assay was performed to observe VM in vitro. To investigate the role of SOX7 in VM formation, SOX7 was transiently over-expressed in SCC-9 cells. VM-modulating genes were identified by Western blotting. RESULTS We found a positive correlation between VM and lymph node metastasis and patient survival in OSCC (p = 0.003). In silico analysis from The Cancer Genome Atlas and Gene Expression Omnibus database showed that down-regulation of SOX7 expression was significantly correlated with OSCC patients (p = 0.0187) and lymph node metastasis (p = 0.0017). We also found that the presence of VM in OSCC tissue was inversely associated with SOX7 expression (p = 0.020). We observed that overexpression of SOX7 impaired VM formation by reducing the expression of VE-cadherin, thereby inhibiting cell migration and invasion. CONCLUSION These results suggest that SOX7 plays an important role in the regulation of VM formation and may inhibit OSCC metastasis.
Collapse
Affiliation(s)
- Kyoung-Ok Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Kyu-Young Oh
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Hye-Jung Yoon
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Neeti Swarup
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Minjung Jung
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Jung-Hwan Kim
- Department of Pharmacology, College of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Kunal Chawla
- Department of Computer Science, School of Interactive Computing, Georgia Institute of Technology, Atlanta, GA, USA
| | - Jae-Il Lee
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Seong-Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| |
Collapse
|
21
|
Jang HM, Park JY, Lee YJ, Kang MJ, Jo SG, Jeong YJ, Cho NP, Cho SD, Kim DJ, Park JH. TLR2 and the NLRP3 inflammasome mediate IL-1β production in Prevotella nigrescens-infected dendritic cells. Int J Med Sci 2021; 18:432-440. [PMID: 33390812 PMCID: PMC7757152 DOI: 10.7150/ijms.47197] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 11/13/2020] [Indexed: 12/28/2022] Open
Abstract
Prevotella nigrescens is an oral pathogen that is frequently observed in the subgingival plaque of periodontitis patients. Interleukin-1β (IL-1β) is known to be involved in the immunopathology of periodontal diseases and has been implicated in the destruction of bone. In this study, we investigated the mechanism of IL-1β production by P. nigrescens in murine bone marrow-derived dendritic cells (BMDCs). Our results showed that a host receptor, Toll-like receptor 2 (TLR2), but not TLR4 is required for pro-IL-1β induction and nucleotide-binding oligomerization domain like receptor pyrin domain containing 3 (NLRP3) priming in BMDCs in response to P. nigrescens and activation of the NLRP3 inflammasome is necessary for processing of pro-IL-1β into mature IL-1β. In addition, an inhibitor assay revealed that production of reactive oxygen species, P2X7R activity, and release of cathepsin B are involved in IL-1β production in BMDCs in response to P. nigrescens.
Collapse
Affiliation(s)
- Hye-Mi Jang
- Laboratory Animal Medicine, College of Veterinary Medicine and BK 21 PLUS Project Team, Chonnam National University, Gwangju, Republic of Korea.,Department of Oral Pathology, School of Dentistry, Institute of Biodegradable material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Ji-Yeon Park
- Laboratory Animal Medicine, College of Veterinary Medicine and BK 21 PLUS Project Team, Chonnam National University, Gwangju, Republic of Korea
| | - Yeon-Ji Lee
- Laboratory Animal Medicine, College of Veterinary Medicine and BK 21 PLUS Project Team, Chonnam National University, Gwangju, Republic of Korea
| | - Min-Jung Kang
- Laboratory Animal Medicine, College of Veterinary Medicine and BK 21 PLUS Project Team, Chonnam National University, Gwangju, Republic of Korea
| | - Sung-Gang Jo
- Laboratory Animal Medicine, College of Veterinary Medicine and BK 21 PLUS Project Team, Chonnam National University, Gwangju, Republic of Korea
| | - Yu-Jin Jeong
- Infectious disease Research Center, Korea research institute of bioscience & biotechnology, Daejeon, Republic of Korea
| | - Nam-Pyo Cho
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seou, Republic of Korea
| | - Dong-Jae Kim
- Laboraotry Animal Resource Center, DGIST, Daegu, Republic of Korea
| | - Jong-Hwan Park
- Laboratory Animal Medicine, College of Veterinary Medicine and BK 21 PLUS Project Team, Chonnam National University, Gwangju, Republic of Korea
| |
Collapse
|
22
|
Oh KY, Cho SD, Yoon HJ, Lee JI, Hong SD. Discrepancy between immunohistochemistry and sequencing for BRAF V600E in odontogenic tumours: Comparative analysis of two VE1 antibodies. J Oral Pathol Med 2020; 50:85-91. [PMID: 32939809 DOI: 10.1111/jop.13108] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 04/25/2020] [Revised: 08/14/2020] [Accepted: 09/06/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Although immunohistochemistry (IHC) along with molecular tests has been investigated in ameloblastoma for BRAF V600E detection, VE1 IHC has not been studied in odontogenic carcinomas (OCs) and benign mixed epithelial and mesenchymal odontogenic tumours (BMOTs). Here, we performed BRAF V600E mutation analysis, examined the expression pattern of VE1 IHC, and comparatively evaluated the performance of two VE1 antibodies in ameloblastomas, OCs and BMOTs. METHODS BRAF V600E detection was performed using Sanger sequencing in a total of 47 odontogenic tumours: 28 ameloblastomas, 6 OCs and 13 BMOTs. VE1 IHC was conducted using two different antibodies (IHC-A and IHC-V), and their performance was analysed by calculating the sensitivity and specificity compared with sequencing. RESULTS BRAF V600E mutations were identified in 24/28 (85.7%) ameloblastomas, 2/5 (40.0%) ameloblastic carcinomas (ACs), 3/7 (42.9%) ameloblastic fibromas and 1/2 (50.0%) ameloblastic fibro-odontomas. In the presence of the mutation, VE1 showed diffuse cytoplasmic staining in ameloblastomas and ACs, whereas all BMOTs were negative for VE1. IHC-A and IHC-V yielded a sensitivity of 76.7% and 60.0%, respectively, although both antibodies showed 100% specificity. CONCLUSION OCs and BMOTs have BRAF V600E mutations in common at lower frequencies than ameloblastoma. Diffuse VE1 cytoplasmic staining in AC suggests the utility of MAPK-targeted therapy as selectively applied in ameloblastoma, and consistent VE1 false-negative expression in BMOTs requires further investigation. Considering the high specificity but low sensitivity of VE1 IHC, molecular tests should be performed to determine the presence of BRAF V600E mutations in odontogenic tumours.
Collapse
Affiliation(s)
- Kyu-Young Oh
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Hye-Jung Yoon
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Jae-Il Lee
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Seong-Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| |
Collapse
|
23
|
Kwon HJ, Yoon K, Jung JY, Ryu MH, Kim SH, Yoo ES, Choi SY, Yang IH, Hong SD, Shin JA, Cho SD. Targeting X chromosome-linked inhibitor of apoptosis protein in mucoepidermoid carcinoma of the head and neck: A novel therapeutic strategy using nitidine chloride. J Mol Med (Berl) 2020; 98:1591-1602. [PMID: 32901343 DOI: 10.1007/s00109-020-01977-w] [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: 10/29/2019] [Revised: 08/23/2020] [Accepted: 09/03/2020] [Indexed: 10/23/2022]
Abstract
Nitidine chloride (NC) was recently reported to exhibit a wide range of pharmacological properties for several diseases, including cancer. Here we report for the first time that NC is a potential therapeutic agent for mucoepidermoid carcinoma (MEC) occurring in the head and neck because it suppresses X chromosome-linked inhibitor of apoptosis protein (XIAP) in human MEC in vitro and in vivo. The antitumor effects of NC were evaluated by trypan blue exclusion assay, western blotting, live/dead assay, 4',6-diamidino-2-phenylindole (DAPI) staining, human apoptosis antibody array, immunofluorescence staining, immunohistochemistry, small interfering RNA assay, transient transfection of XIAP overexpression vector, terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay, and histopathological examination of organs. NC inhibited cell viability and induced caspase-dependent apoptosis in vitro. A human apoptosis antibody array assay showed that XIAP is suppressed by NC treatment. XIAP was overexpressed in oral squamous cell carcinoma (OSCC) tissues that arose from the head and neck, and high XIAP expression was correlated with poor prognosis in OSCC patients. XIAP depletion significantly increased apoptosis, and ectopic XIAP overexpression attenuated the apoptosis induced by NC treatment. NC suppressed tumor growth in vivo at a dosage of 5 mg/kg/day. The number of TUNEL-positive cells increased and the protein expression of XIAP was consistently downregulated in NC-treated tumor tissues. In addition, NC caused no histopathological changes in the liver or kidney. These findings provide new insights into the mechanism of action underlying the anticancer effects of NC and demonstrate that NC is a promising therapeutic agent for the treatment of human MEC of the head and neck. KEY MESSAGES: • Nitidine chloride induces caspase-dependent apoptosis in MEC of the head and neck. • High XIAP expression correlates with poor prognosis of OSCC patients. • Nitidine chloride suppresses tumor growth in vivo without any systemic toxicities. • Targeting XIAP is a novel chemotherapeutic strategy for MEC of the head and neck.
Collapse
Affiliation(s)
- Hye-Jeong Kwon
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Kyungsil Yoon
- Comparative Biomedicine Research Branch, Division of Translational Science, National Cancer Center, Goyang, 10408, Republic of Korea
| | - Ji-Youn Jung
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - Mi Heon Ryu
- Department of Oral Pathology, School of Dentistry, Yangsan Campus of Pusan National University, Yangsan, 50612, Republic of Korea
| | - Sung-Hyun Kim
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - Eun-Seon Yoo
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - So-Young Choi
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University, Daegu, 41940, Republic of Korea
| | - In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Seong Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea.
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080, Republic of Korea.
| |
Collapse
|
24
|
Ahn CH, Hong KO, Shin JA, Hong SD, Cho SD. Abstract 362: The regulation of SOX7 and its tumor suppressive role in oral squamous cell carcinoma. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
SRY-related HMG-box 7(SOX7), a transcription factor belonging to the SOX family, has been reported to be down-regulated in some types of cancers. However, its biologic role in oral squamous cell carcinoma (OSCC) remains unknown. We found expression of SOX7 protein was decreased in OSCC tissues compared with normal oral mucosa. SOX7 expression in patients with OSCC was inversely associated with positive lymph node metastasis, advanced TNM stage, and poor prognosis. These results were in accordance with data obtained from our in vitro experiments on the OSCC cell lines. Moreover, ectopic expression of SOX7 suppressed cell proliferation, migration, and invasion in HSC-4 and SCC-9 cells. Importantly, we discovered that SOX7 expression likely inhibited vasculogenic mimicry formation associated with clinically poor outcome and impaired expression of VE-cadherin in OSCC cell lines as well as lung cancer and breast cancer cells. Our findings suggest that SOX7 could be a potential marker for predicting the prognosis of patients with OSCC and plays an important role as a tumor suppressor in oral tumorigenesis and progression. This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT, and Future Planning [2017R1D1A1B03029317, 2018R1D1A1B07043080, and 2019R1A2C1085896].
Citation Format: Chi-Hyun Ahn, Kyoung Ok Hong, Ji-Ae Shin, Seong-Doo Hong, Sung-Dae Cho. The regulation of SOX7 and its tumor suppressive role in oral squamous cell carcinoma [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 362.
Collapse
Affiliation(s)
- Chi-Hyun Ahn
- Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Kyoung Ok Hong
- Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Ji-Ae Shin
- Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Seong-Doo Hong
- Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Sung-Dae Cho
- Seoul National University School of Dentistry, Seoul, Republic of Korea
| |
Collapse
|
25
|
Ahn CH, Hong KO, Shin JA, Hong SD, Cho SD. Abstract 2960: Anti-cancer activity of NCTD: promotion of pro-apoptosis and anti-invasion in human oral cancer cells. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-2960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Norcantharidin (NCTD), a demethylated analog of cantharidin isolated from blister beetles, has been used as a promising anticancer agent; however, the anti-tumor potentials of NCTD against human oral cancer has not been fully understood. Here, this study was aimed to investigate the pro-apoptotic and anti-invasive effect and its molecular targets of NCTD in human oral cancer cell lines. Trypan blue exclusion assay, live/dead assay, western blotting, 4-6-Diamidino-2-Phenylindole staining, flow cytometric analysis, Terminal Deoxynucleotidyl Transferase dUTP Nick end Labeling (TUNEL) assay, immunohistochemistry and tumor xenograft mice models were performed to investigate the pro-apoptotic effect of NCTD. Clonogenic, wound healing, invasion, zymography, western blotting and immunocytochemistry assays were performed to investigate the anti-invasive effect of NCTD. NCTD significantly inhibited cell growth and increased the number of dead cells in oral cancer cell lines. It induced the following apoptotic phenomena: (1) the cleavages of poly (ADP-ribose) polymerase and casepase-3; (2) increase in apoptotic morphological changes (nuclear condensation and fragmentation); (3) increase in annexin V-positive cells or sub-G1 population of cells. NCTD significantly activated the p38 mitogen-activated protein kinase (MAPK) pathway. A p38 MAPK inhibitor (SB203580) partially attenuated NCTD-induced apoptosis in oral cancer cell lines. NCTD strongly suppressed tumor growth in the tumor xenograft bearing HSC-3 cells, and the number of TUNEL-positive cells increased in NCTD-treated tumor tissues. Also, NCTD markedly suppressed the colony formation, migration, and invasion of YD-15 cells as well as the activities of MMP-2 and MMP-9. It disrupted F-actin reorganization through suppressing the FAK/Paxillin axis. Moreover, NCTD exhibited a powerful anti-invasive effect compared with that of PF-562271. Collectively, these results suggest that NCTD has a potential pro-apoptotic and anti-invasive activity against oral cancer cell lines. Therefore, these results suggest that NCTD could be a potential anticancer drug candidate for the treatment of human oral cancer. This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT, and future Planning [2017R1D1A1B03029317, 2018R1D1A1B07043080, and 2019R1A2C1085896].
Citation Format: Chi-Hyun Ahn, Kyoung-Ok Hong, Ji-Ae Shin, Seong Doo Hong, Sung-Dae Cho. Anti-cancer activity of NCTD: promotion of pro-apoptosis and anti-invasion in human oral cancer cells [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 2960.
Collapse
Affiliation(s)
- Chi-Hyun Ahn
- Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Kyoung-Ok Hong
- Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Ji-Ae Shin
- Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Seong Doo Hong
- Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Sung-Dae Cho
- Seoul National University School of Dentistry, Seoul, Republic of Korea
| |
Collapse
|
26
|
Han JM, Hong KO, Yang IH, Ahn CH, Jin B, Lee W, Jung YC, Kim KA, Shin JA, Cho SD, Hong SD. Oridonin induces the apoptosis of mucoepidermoid carcinoma cell lines in a myeloid cell leukemia‑1‑dependent manner. Int J Oncol 2020; 57:377-385. [PMID: 32467983 DOI: 10.3892/ijo.2020.5061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 04/24/2020] [Indexed: 11/06/2022] Open
Abstract
Oridonin, an active diterpenoid isolated from Rabdosia rubescens, has been reported to exhibit anticancer activities in several tumors. The aim of the present study was to investigate the anticancer effects and molecular mechanisms of oridonin in mucoepidermoid carcinoma (MEC). Treatment with oridonin induced the apoptosis of MC‑3 and YD‑15 cell and inhibited the expression of myeloid cell leukemia‑1 (MCL‑1) through the regulation of the protein level through post‑translational regulation in these cell lines. Oridonin significantly increased the expression level of truncated Bid (t‑Bid) as a downstream target of MCL‑1 and subsequently decreased the mitochondrial membrane potential. The ectopic expression of MCL‑1 protein was sufficient to reverse the induction of apoptosis and the increased t‑Bid expression induced by oridonin in both cell lines. Taken together, these results suggest that oridonin exerts an apoptotic effect through the modulation of MCL‑1 and t‑Bid in human MEC cell lines and may thus be a potential anticancer drug candidate for the treatment of human MEC.
Collapse
Affiliation(s)
- Jung-Min Han
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Kyoung-Ok Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - In-Hyoung Yang
- Cancer Center, School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Chi-Hyun Ahn
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Bohwan Jin
- Laboratory Animal Center, CHA University, CHA Biocomplex, Seongnam, Gyeonggi 13488, Republic of Korea
| | - Wonwoo Lee
- Laboratory Animal Center, CHA University, CHA Biocomplex, Seongnam, Gyeonggi 13488, Republic of Korea
| | | | - Kyung-A Kim
- Department of Dentistry, School of Medicine, Eulji University, Daejeon 34824, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Seong-Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| |
Collapse
|
27
|
Ahn CH, Lee WW, Jung YC, Shin JA, Hong KO, Choi S, Swarup N, Kim J, Ahn MH, Jung M, Cho SD, Jin B. Antitumor effect of TW-37, a BH3 mimetic in human oral cancer. Lab Anim Res 2019; 35:27. [PMID: 32257914 PMCID: PMC7081630 DOI: 10.1186/s42826-019-0028-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 10/03/2019] [Accepted: 11/19/2019] [Indexed: 12/15/2022] Open
Abstract
TW-37 is a small molecule B cell lymphoma-2 (Bcl-2) homology 3 mimetic with potential anticancer activities. However, the in vivo anti-cancer effect of TW-37 in human oral cancer has not been properly studied yet. Here, we attempted to confirm antitumor activity of TW37 in human oral cancer. TW-37 significantly inhibited cell proliferation and increased the number of dead cells in MC-3 and HSC-3 human oral cancer cell lines. TW-37 enhanced apoptosis of both cell lines evidenced by annexin V/propidium iodide double staining, sub-G1 population analysis and the detection of cleaved poly (ADP-ribose) polymerase and caspase-3. In addition, TW-37 markedly downregulated the expression of Bcl-2 protein, while not affecting Bcl-xL or myeloid cell leukemia-1. In vivo, TW-37 inhibited tumor growth in a nude mice xenograft model without any significant liver and kidney toxicities. Collectively, these data reveal that TW-37 may be a promising small molecule to inhibit human oral cancer.
Collapse
Affiliation(s)
- Chi-Hyun Ahn
- 1Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Won Woo Lee
- 2Laboratory Animal Center, CHA University, CHA Biocomplex, Sampyeong-dong, Seongnam, 13488 Republic of Korea
| | - Yun Chan Jung
- Chaon, 301-3, 240, Pangyoyeok-ro, Bundang-gu, Seongnam, 13493 Republic of Korea
| | - Ji-Ae Shin
- 1Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Kyoung-Ok Hong
- 1Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Sujung Choi
- 1Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Neeti Swarup
- 1Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Jihoon Kim
- 1Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Min-Hye Ahn
- 1Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Minjung Jung
- 1Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Sung-Dae Cho
- 1Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Bohwan Jin
- 2Laboratory Animal Center, CHA University, CHA Biocomplex, Sampyeong-dong, Seongnam, 13488 Republic of Korea
| |
Collapse
|
28
|
Kwon HJ, Kim LH, Ahn CH, Yang IH, Hong KO, Doo Hong S, Shin JA, Cho SD. A new insight into the apoptotic effect of nitidine chloride targeting Checkpoint kinase 2 in human cervical cancer in vitro. J Clin Biochem Nutr 2019; 65:193-202. [PMID: 31777420 PMCID: PMC6877403 DOI: 10.3164/jcbn.19-28] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 04/04/2019] [Accepted: 08/14/2019] [Indexed: 12/12/2022] Open
Abstract
Nitidine chloride (NC), a natural, bioactive, phytochemical alkaloid derived from the roots of Zanthoxylum nitidum, has been reported to exhibit anti-tumor activity against various types of cancer. However, the potential therapeutic role of NC in human cervical cancer has not yet been studied. We are the first to report that NC acts as a potential apoptosis-inducing agent for human cervical cancer in vitro. NC treatment of human cervical cancer cell lines induced caspase-mediated apoptosis, thereby reducing cell viability. Phospho-kinase proteome profiling using a human phospho-kinase array revealed that NC treatment phosphorylated Checkpoint kinase 2 (Chk2) at Thr68, which activates Chk2 in both cell lines. We also found that NC significantly affected the p53/Bim signaling axis, which was accompanied by mitochondrial membrane depolarization and cytochrome c release from the mitochondria into the cytosol. In addition, NC profoundly increased phosphorylation of the histone variant H2AX at Ser139, a typical marker of DNA damage. Taken together, these results provide in vitro evidence that NC can increase Chk2 activation, thereby acting as an attractive cell death inducer for treatment of human cervical cancer.
Collapse
Affiliation(s)
- Hye-Jeong Kwon
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Lee-Han Kim
- Department of Microbiology, Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Chi-Hyun Ahn
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Kyoung-Ok Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Seong Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| |
Collapse
|
29
|
Ahn CH, Cho SD. Abstract 712: Down-regulation and nuclear localization of survivin by sodium butyrate induces caspase-dependent apoptosis in human oral mucoepidermoid carcinoma. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Sodium butyrate (NaBu) is a histone deacetylase inhibitor that possess an apoptotic ability. However, the molecular mechanism by which NaBu induces apoptosis in human oral mucoepidermoid carcinoma (MEC), a type of salivary gland tumor, remains unclear. The anticancer effects of NaBu and its related molecular mechanisms were determined by trypan blue exclusion assay, 4'-6-diamidino-2-phenylindole staining, live/dead assay, human apoptosis array, RT-PCR, western blotting, immunocytochemistry, preparation of nuclear fractions, and nude mice tumor xenograft. In this study, we found that NaBu inhibited growth and induced apoptosis in the human oral MEC cell lines MC3 and YD15 with the acetylation of histone proteins H2A and H3. NaBu apparently down-regulated survivin protein, as evidenced by the results of the human apoptosis antibody array, and modulated it at the post-translational process. Interestingly, NaBu caused nuclear translocation of survivin protein in both cell lines. NaBu also resulted in decreased expression levels of Bcl-xL mRNA and protein, leading to induction of caspase-dependent apoptosis in human oral MEC cell lines. In addition, NaBu administration inhibited tumor growth in vivo at a dosage of 500 mg/kg/day, but it did not cause any hepatic or renal toxicity. This study provides new insights into the molecular mechanism of apoptotic actions by NaBu in human oral MEC and the basis of its clinical application for the treatment of human oral MEC.
Citation Format: Chi Hyun Ahn, Sung-Dae Cho. Down-regulation and nuclear localization of survivin by sodium butyrate induces caspase-dependent apoptosis in human oral mucoepidermoid carcinoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 712.
Collapse
Affiliation(s)
- Chi Hyun Ahn
- Seoul National University, School of Dentistry, Seoul, Republic of Korea
| | - Sung-Dae Cho
- Seoul National University, School of Dentistry, Seoul, Republic of Korea
| |
Collapse
|
30
|
Hong KO, Ahn CH, Yang IH, Han JM, Shin JA, Cho SD, Hong SD. Norcantharidin Suppresses YD-15 Cell Invasion Through Inhibition of FAK/Paxillin and F-Actin Reorganization. Molecules 2019; 24:molecules24101928. [PMID: 31109130 PMCID: PMC6572169 DOI: 10.3390/molecules24101928] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 05/15/2019] [Accepted: 05/17/2019] [Indexed: 12/12/2022] Open
Abstract
Norcantharidin (NCTD), a demethylated derivative of cantharidin, has been reported to exhibit activity against various types of cancers. However, the anti-invasive effects of NCTD and its molecular mechanism in human mucoepidermoid carcinoma (MEC) remain incompletely elucidated. Clonogenic, wound healing, invasion, zymography, western blotting and immunocytochemistry assays were performed in YD-15 cells to investigate the anti-invasive effect of NCTD and its molecular mechanism of action. The inhibitory effects of NCTD on invasiveness were compared with those of a novel focal adhesion kinase (FAK) kinase inhibitor, PF-562271. NCTD markedly suppressed the colony formation, migration, and invasion of YD-15 cells as well as the activities of MMP-2 and MMP-9. It disrupted F-actin reorganization through suppressing the FAK/Paxillin axis. Moreover, NCTD exhibited a powerful anti-invasive effect compared with that of PF-562271 in YD-15 cells. Collectively, these results suggest that NCTD has a potential anti-invasive activity against YD-15 cells. This study may clarify the impact of NCTD on migration and invasion of human MEC cells.
Collapse
Affiliation(s)
- Kyoung-Ok Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Korea.
| | - Chi-Hyun Ahn
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Korea.
| | - In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Korea.
| | - Jung-Min Han
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Korea.
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Korea.
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Korea.
| | - Seong Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Korea.
| |
Collapse
|
31
|
Jang B, Yang IH, Cho NP, Jin B, Lee W, Jung YC, Hong SD, Shin JA, Cho SD. Down-regulation and nuclear localization of survivin by sodium butyrate induces caspase-dependent apoptosis in human oral mucoepidermoid carcinoma. Oral Oncol 2019; 88:160-167. [PMID: 30616788 DOI: 10.1016/j.oraloncology.2018.11.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 11/20/2018] [Accepted: 11/29/2018] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Sodium butyrate (NaBu) is a histone deacetylase inhibitor that possesses an apoptotic ability. However, the molecular mechanism by which NaBu induces apoptosis in human oral mucoepidermoid carcinoma (MEC), a type of salivary gland tumor, remains unclear. MATERIALS AND METHODS The anticancer effects of NaBu and its related molecular mechanisms were determined by trypan blue exclusion assay, 4'-6-diamidino-2-phenylindole staining, live/dead assay, human apoptosis array, RT-PCR, western blotting, immunocytochemistry, preparation of nuclear fractions, and nude mice tumor xenograft. RESULTS In this study, we found that NaBu inhibited growth and induced apoptosis in the human oral MEC cell lines MC3 and YD15 with acetylation of histone proteins H2A and H3. NaBu apparently down-regulated survivin protein, as evidenced by the results of the human apoptosis antibody array, and modulated it at the post-translational process. Interestingly, NaBu caused nuclear translocation of survivin protein in both cell lines. NaBu also resulted in decreased expression levels of Bcl-xL mRNA and protein, leading to induction of caspase-dependent apoptosis in human oral MEC cell lines. In addition, NaBu administration inhibited tumor growth in vivo at a dosage of 500 mg/kg/day, but it did not cause any hepatic or renal toxicity. CONCLUSION This study provides new insights into the molecular mechanism of apoptotic actions by NaBu in human oral MEC and the basis of its clinical application for the treatment of human oral MEC.
Collapse
Affiliation(s)
- Boonsil Jang
- Department of Dental Hygiene, Sorabol College, Gyeongju 38063, Republic of Korea
| | - In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience and Biodegradable Material, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - Nam-Pyo Cho
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience and Biodegradable Material, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - Bohwan Jin
- Laboratory Animal Center, CHA University, CHA Biocomplex, Sampyeong-dong, Seongnam 13488, Republic of Korea
| | - WonWoo Lee
- Laboratory Animal Center, CHA University, CHA Biocomplex, Sampyeong-dong, Seongnam 13488, Republic of Korea
| | - Yun Chan Jung
- Chaon, 301-3, 240, Pangyoyeok-ro, Bundang-gu, Seongnam, Republic of Korea
| | - Seong Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea.
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea.
| |
Collapse
|
32
|
Won DH, Chung SH, Shin JA, Hong KO, Yang IH, Yun JW, Cho SD. Induction of sestrin 2 is associated with fisetin-mediated apoptosis in human head and neck cancer cell lines. J Clin Biochem Nutr 2018; 64:97-105. [PMID: 30936621 PMCID: PMC6436036 DOI: 10.3164/jcbn.18-63] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 06/05/2018] [Accepted: 07/23/2018] [Indexed: 02/06/2023] Open
Abstract
Fisetin was reported to have an anti-proliferative and apoptotic activity as a novel anti-cancer agent in various cancer cell lines. However, the possible molecular targets for the anti-cancer effect of fisetin in human head and neck cancer (HNCC) have not yet been clarified. In this study, the influence of fisetin on the growth and apoptosis of HNCCs were examined. In HSC3 cells, fisetin treatment reduced the viability and induced apoptosis. Through the results from the screening of the expression profile of apoptosis-related genes, sestrin 2 (SESN2) was functionally involved in fisetin-mediated apoptosis showing the knockdown of SESN2 by siRNA clearly restored fisetin-induced apoptosis. In addition, fisetin reduced the protein expression levels of phospho-mTOR (p-mTOR) and Mcl-1, which are the downstream molecules of SESN2. It also induced PARP cleavage by inducing an increase in the expression levels of SESN2 together with reducing mTOR and Mcl-1 proteins in other three HNCCs (MC3, Ca9.22, and HN22). Taken together, our findings suggest that the anti-cancer effect of fisetin on HNCCs is associated with SESN2/mTOR/Mcl-1 signaling axis.
Collapse
Affiliation(s)
- Dong-Hoon Won
- Department of Biotechnology, Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Shin Hye Chung
- Department of Dental Biomaterials Science, School of Dentistry and Dental Research Institute, Seoul National University, 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Kyoung-Ok Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - Jun-Won Yun
- Department of Biotechnology, Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, 103 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| |
Collapse
|
33
|
Jang B, Kim LH, Lee SY, Lee KE, Shin JA, Cho SD. Trichostatin A induces apoptosis in oral squamous cell carcinoma cell lines independent of hyperacetylation of histones. J Cancer Res Ther 2018; 14:S576-S582. [PMID: 30249871 DOI: 10.4103/0973-1482.177220] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 11/04/2022]
Abstract
Aim of Study To investigate the apoptotic event of trichostatin A (TSA) and its associated mechanism in oral squamous cell carcinoma (OSCC) lines. Materials and Methods HSC-3 and Ca9.22 cell lines were evaluated using a trypan blue exclusion assay, histone isolation, soft agar assay, live/dead assay, 4%,6-diamidino-2-phenylindole staining, JC-1 mitochondrial membrane potential (MMP) assay, and Western blot analysis to demonstrate the anticancer activity of TSA. Results TSA decreased OSCC cell viability and proliferation without affecting the histone acetylation. TSA-induced caspase-dependent or -independent apoptosis according to cell types, TSA enhanced the expression levels of Bim protein by dephosphorylating ERK1/2 pathway in HSC-3 cells. TSA also damaged MMP and increased cytosolic apoptosis-inducing factor (AIF) in Ca9.22 cells. Conclusion The present study suggests that TSA may be a potential anticancer drug candidate for the treatment of OSCC through the induction of apoptosis.
Collapse
Affiliation(s)
- Boonsil Jang
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience and Biodegradable Material, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Lee-Han Kim
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience and Biodegradable Material, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Seung-Youp Lee
- Department of Orthodontics, School of Dentistry, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Kyung-Eun Lee
- Department of Oral Medicine, School of Dentistry, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute, Chonbuk National University Hospital, Jeonju 561-712, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience and Biodegradable Material, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience and Biodegradable Material, Chonbuk National University, Jeonju 561-756, Republic of Korea
| |
Collapse
|
34
|
Yang IH, Jung W, Kim LH, Shin JA, Cho NP, Hong SD, Hong KO, Cho SD. Nitidine chloride represses Mcl-1 protein via lysosomal degradation in oral squamous cell carcinoma. J Oral Pathol Med 2018; 47:823-829. [PMID: 29924888 DOI: 10.1111/jop.12755] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 05/15/2018] [Accepted: 06/18/2018] [Indexed: 01/11/2023]
Abstract
BACKGROUND We have shown previously that nitidine chloride (NC) induces apoptosis via inhibition of signal transducer and activator of transcription 3 (STAT3). However, its downstream molecules are not fully understood yet. Here, we report that NC as STAT3 inhibitor downregulates myeloid cell leukemia-1 (Mcl-1) protein in HSC-3 and HSC-4 human oral squamous cell carcinoma (OSCC) cells and a nude mouse tumor xenograft model. METHODS This study investigated the effects of NC on Mcl-1 expression in HSC-3 and HSC-4 cells using Western blotting, RT-PCR, and dual-luciferase assay. Immunohistochemistry was employed to evaluate Mcl-1 expression levels in mouse tumor tissues. Construction of Mcl-1 overexpression vector and transient transfection was done to test the apoptosis of HSC-3 cells. RESULTS Nitidine chloride did not affect either mRNA level or promoter activity of Mcl-1, and the decrease in Mcl-1 protein by NC was caused by lysosome-dependent degradation, but not proteasome-dependent degradation. The overexpression of Mcl-1 protein in OSCC cell lines was sufficient to block the induction of apoptosis. In addition, NC strongly reduced the expression level of Mcl-1 protein compared with other STAT3 inhibitors such as cryptotanshione and S3I-201 in OSCCs. CONCLUSIONS Our findings suggest that NC triggers apoptosis via lysosome-dependent Mcl-1 protein degradation and could be chosen as a promising chemotherapeutic candidate against human OSCCs.
Collapse
Affiliation(s)
- In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Korea
| | - Won Jung
- Department of Oral medicine, School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - Lee-Han Kim
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Nam-Pyo Cho
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Korea
| | - Seong Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Kyoung-Ok Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| |
Collapse
|
35
|
Won DH, Kim LH, Jang B, Yang IH, Kwon HJ, Jin B, Oh SH, Kang JH, Hong SD, Shin JA, Cho SD. In vitro and in vivo anti-cancer activity of silymarin on oral cancer. Tumour Biol 2018; 40:1010428318776170. [DOI: 10.1177/1010428318776170] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Silymarin, a standardized extract from milk thistle fruits has been found to exhibit anti-cancer effects against various cancers. Here, we explored the anti-cancer activity of silymarin and its molecular target in human oral cancer in vitro and in vivo. Silymarin dose-dependently inhibited the proliferation of HSC-4 oral cancer cells and promoted caspase-dependent apoptosis. A human apoptosis protein array kit showed that death receptor 5 may be involved in silymarin-induced apoptosis, which was also shown through western blotting, immunocytochemistry, and reverse transcription-polymerase chain reaction. Silymarin increased cleaved caspase-8 and truncated Bid, leading to accumulation of cytochrome c. In addition, silymarin activated death receptor 5/caspase-8 to induce apoptotic cell death in two other oral cancer cell lines (YD15 and Ca9.22). Silymarin also suppressed tumor growth and volume without any hepatic or renal toxicity in vivo. Taken together, these results provide in vitro and in vivo evidence supporting the anti-cancer effect of silymarin and death receptor 5, and caspase-8 may be essential players in silymarin-mediated apoptosis in oral cancer.
Collapse
Affiliation(s)
- Dong-Hoon Won
- Department of Oral Pathology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Lee-Han Kim
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Boonsil Jang
- Department of Dental Hygiene, Sorabol College, Gyeongju-si, Republic of Korea
| | - In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Hye-Jeong Kwon
- Department of Oral Pathology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Bohwan Jin
- Laboratory Animal Center, CHA University and CHA Bio Complex, Seongnam, Republic of Korea
| | - Seung Hyun Oh
- National Cancer Center, Goyang-si, Republic of Korea
| | - Ju-Hee Kang
- National Cancer Center, Goyang-si, Republic of Korea
| | - Seong-Doo Hong
- Department of Oral Pathology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| |
Collapse
|
36
|
Yu HJ, Ahn CH, Yang IH, Won DH, Jin B, Cho NP, Hong SD, Shin JA, Cho SD. Apoptosis induced by methanol extract of Potentilla discolor in human mucoepidermoid carcinoma cells through STAT3/PUMA signaling axis. Mol Med Rep 2018; 17:5258-5264. [PMID: 29363716 PMCID: PMC5865991 DOI: 10.3892/mmr.2018.8468] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 01/16/2018] [Indexed: 11/23/2022] Open
Abstract
Potentilla discolor has been used in traditional Chinese medicine for the treatment of hyperglycemia. However, the potential role of Potentilla discolor against cancer and its mode of action remain to be fully elucidated. The present study explored the apoptotic effect of methanol extract of Potentilla discolor (MEPD) in human mucoepidermoid carcinoma (MEC) cell lines of salivary glands. MEPD markedly suppressed the growth and induced apoptotic cell death in MC3 and YD15 cells. MEPD treatment significantly upregulated the expression of PUMA and reduced STAT3 phosphorylation. Overexpression of STAT3 partially recovered the growth of MEC cells inhibited by MEPD. In addition, dephosphorylation of STAT3 by cryptotanshinone (a potent STAT3 inhibitor) was sufficient to inhibit the growth of MEC cells and induce apoptosis via affecting PUMA protein. These results suggest that MEPD has a potential anticancer property via the STAT3/PUMA signaling axis in human MEC cells of salivary gland.
Collapse
Affiliation(s)
- Hyun-Ju Yu
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Chi-Hyun Ahn
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Dong-Hoon Won
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Bohwan Jin
- Laboratory Animal Center, CHA University, CHA Biocomplex, Sampyeong-Dong, Seongnam, Gyeonggi 13488, Republic of Korea
| | - Nam-Pyo Cho
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Seong Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| |
Collapse
|
37
|
Yu HJ, Shin JA, Yang IH, Won DH, Ahn CH, Kwon HJ, Lee JS, Cho NP, Kim EC, Yoon HJ, Lee JI, Hong SD, Cho SD. Apoptosis induced by caffeic acid phenethyl ester in human oral cancer cell lines: Involvement of Puma and Bax activation. Arch Oral Biol 2017; 84:94-99. [DOI: 10.1016/j.archoralbio.2017.09.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 08/24/2017] [Accepted: 09/24/2017] [Indexed: 02/06/2023]
|
38
|
Yang IH, Shin JA, Lee KE, Kim J, Cho NP, Cho SD. Oridonin induces apoptosis in human oral cancer cells via phosphorylation of histone H2AX. Eur J Oral Sci 2017; 125:438-443. [PMID: 29083074 DOI: 10.1111/eos.12387] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oridonin, a natural diterpenoid purified from Rabdosia rubescens, has displayed beneficial biological activities, including anti-proliferation and anti-angiogenesis effects, in various types of cancers. However, the anti-cancer potential of oridonin and its mechanism in oral cancer have never previously been studied. In this study, we assessed the role of oridonin as an inducer of apoptosis in HSC-3 and HSC-4 human oral cancer cells. Our results showed that oridonin reduces the viability of human oral cancer cells and significantly increases the expression of γH2AX, a well-known marker of DNA damage. 4',6-Diamidino-2-phenylindole (DAPI) staining and western blotting showed that oridonin causes nuclear condensation and fragmentation, and induces cleavage of poly(ADP-ribose) polymerase (PARP). Moreover, oridonin-induced γH2AX accumulation was partially abrogated by Z-VAD, a pan-caspase inhibitor. Taken together, our results suggest that oridonin can effectively induce apoptosis by augmenting the expression of γH2AX in response to DNA damage and might be a promising anti-cancer drug candidate for the treatment of oral cancer.
Collapse
Affiliation(s)
- In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Kyung-Eun Lee
- Department of Oral Medicine, School of Dentistry, Chonbuk National University, Jeonju, Republic of Korea
| | - Junghyun Kim
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Nam-Pyo Cho
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| |
Collapse
|
39
|
Kim LH, Khadka S, Shin JA, Jung JY, Ryu MH, Yu HJ, Lee HN, Jang B, Yang IH, Won DH, Kwon HJ, Jeong JH, Hong SD, Cho NP, Cho SD. Nitidine chloride acts as an apoptosis inducer in human oral cancer cells and a nude mouse xenograft model via inhibition of STAT3. Oncotarget 2017; 8:91306-91315. [PMID: 29207645 PMCID: PMC5710925 DOI: 10.18632/oncotarget.20444] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [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: 04/21/2017] [Accepted: 07/26/2017] [Indexed: 12/20/2022] Open
Abstract
Nitidine chloride (NC) is a natural alkaloid compound derived from the plant Zanthoxylum nitidum and is known for its therapeutic anticancer potential. In this study, we investigated the effects of NC on growth and signaling pathways in human oral cancer cell lines and a tumor xenograft model. The apoptotic effects and related molecular targets of NC on human oral cancer were investigated using trypan blue exclusion assay, DAPI staining, Live/Dead assay, Western blotting, Immunohistochemistry/Immunofluorescence and a nude mouse tumor xenograft. NC decreased cell viability in both HSC3 and HSC4 cell lines; further analysis demonstrated that cell viability was reduced via apoptosis. STAT3 was hyper-phosphorylated in human oral squamous cell carcinoma (OSCC) compared with normal oral mucosa (NOM) and dephosphorylation of STAT3 by the potent STAT3 inhibitor, cryptotanshinone or NC decreased cell viability and induced apoptosis. NC also suppressed cell viability and induced apoptosis accompanied by dephosphorylating STAT3 in four other oral cancer cell lines. In a tumor xenograft model bearing HSC3 cell tumors, NC suppressed tumor growth and induced apoptosis by regulating STAT3 signaling without liver or kidney toxicity. Our findings suggest that NC is a promising chemotherapeutic candidate against human oral cancer.
Collapse
Affiliation(s)
- Lee-Han Kim
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - Sachita Khadka
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Ji-Youn Jung
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - Mi-Heon Ryu
- Department of Oral Pathology, School of Dentistry, Yangsan Campus of Pusan National University, Yangsan, 50612, Republic of Korea
| | - Hyun-Ju Yu
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - Hae Nim Lee
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, 32439, Republic of Korea
| | - Boonsil Jang
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - Dong-Hoon Won
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Hye-Jeong Kwon
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Joseph H Jeong
- Department of Developmental Biology and Genomics, College of Veterinary Medicine, Seoul National University and Korea Mouse Phenotyping Center, Seoul, 08826, Republic of Korea
| | - Seong Doo Hong
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| | - Nam-Pyo Cho
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, 54896, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea
| |
Collapse
|
40
|
Cho SD. Abstract 2309: Acetylation of survivin represses transactivation of STAT3 to induce sodium butyrate-induced apoptosis in human mucoepidermoid carcinoma cell lines. Cancer Res 2017. [DOI: 10.1158/1538-7445.am2017-2309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Sodium butyrate (NaBu) is one of histone deacetylase inhibitors and possesses anticancer activity. Here, the aim of this study is to determine the molecular mechanism by which NaBu controls apoptosis in MC3 and YD15 human mucoepidermoid carcinoma (MEC) cell lines. NaBu caused growth inhibition and induced apoptosis in both cell lines accompanied by the acetylation of histone proteins H2A and H3. NaBu clearly increased survivin and cleaved caspase 3 evidenced by human apoptosis array and it regulated survivin molecule at a post-transcriptional level. NaBu caused nuclear translocation of survivin protein and increased survivin acetylation in both cell lines. In addition, STAT3 and survivin were co-localized in nucleus by NaBu resulting in the decrease in the expression level of Bcl-XL mRNA which is one of STAT3 downstream molecules. In addition, NaBu induced caspase-dependent apoptosis in human MEC cells. Taken together, these results suggest that NaBu is a potent apoptosis inducer in human MEC cell lines through survivin-STAT3 signaling cascades and these findings provide the basis of its clinical application for the treatment of human MEC.
This abstract is supported by SNU Invitation Program for Distinguished Scholar and the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2014R1A12055874)
Citation Format: Sung-Dae Cho. Acetylation of survivin represses transactivation of STAT3 to induce sodium butyrate-induced apoptosis in human mucoepidermoid carcinoma cell lines [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 2309. doi:10.1158/1538-7445.AM2017-2309
Collapse
Affiliation(s)
- Sung-Dae Cho
- Seoul National University, School of Dentistry, Seoul, Republic of Korea
| |
Collapse
|
41
|
Jung JE, Cai JN, Cho SD, Song KY, Jeon JG. Influence of fluoride on the bacterial composition of a dual-species biofilm composed of Streptococcus mutans and Streptococcus oralis. Biofouling 2016; 32:1079-1087. [PMID: 27643392 DOI: 10.1080/08927014.2016.1230607] [Citation(s) in RCA: 8] [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] [Received: 01/29/2016] [Accepted: 08/23/2016] [Indexed: 06/06/2023]
Abstract
Despite the widespread use of fluoride for the prevention of dental caries, few studies have demonstrated the effects of fluoride on the bacterial composition of dental biofilms. This study investigated whether fluoride affects the proportion of Streptococcus mutans and S. oralis in mono- and dual-species biofilm models, via microbiological, biochemical, and confocal fluorescence microscope studies. Fluoride did not affect the bacterial count and bio-volume of S. mutans and S. oralis in mono-species biofilms, except for the 24-h-old S. mutans biofilms. However, fluoride reduced the proportion and bio-volume of S. mutans but did not decrease those of S. oralis during both S. oralis and S. mutans dual-species biofilm formation, which may be related to the decrease in extracellular polysaccharide formation by fluoride. These results suggest that fluoride may prevent the shift in the microbial proportion to cariogenic bacteria in dental biofilms, subsequently inhibiting the cariogenic bacteria dominant biofilm formation.
Collapse
Affiliation(s)
- Ji-Eun Jung
- a Department of Preventive Dentistry, School of Dentistry, Institute of Oral Bioscience and BK 21 Plus Program , Chonbuk National University , Jeonju , Republic of Korea
| | - Jian-Na Cai
- a Department of Preventive Dentistry, School of Dentistry, Institute of Oral Bioscience and BK 21 Plus Program , Chonbuk National University , Jeonju , Republic of Korea
| | - Sung-Dae Cho
- b Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience and BK 21 Plus Program , Chonbuk National University , Jeonju , Republic of Korea
| | - Kwang-Yeob Song
- c Department of Prosthodontics, School of Dentistry, Institute of Oral Bioscience and BK 21 Plus Program , Chonbuk National University , Jeonju , Republic of Korea
| | - Jae-Gyu Jeon
- a Department of Preventive Dentistry, School of Dentistry, Institute of Oral Bioscience and BK 21 Plus Program , Chonbuk National University , Jeonju , Republic of Korea
| |
Collapse
|
42
|
Kim LH, Shin JA, Jang B, Yang IH, Won DH, Jeong JH, Chung TH, Cho NP, Cho SD. Sorafenib potentiates ABT-737-induced apoptosis in human oral cancer cells. Arch Oral Biol 2016; 73:1-6. [PMID: 27632413 DOI: 10.1016/j.archoralbio.2016.08.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 08/14/2016] [Accepted: 08/30/2016] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The mimetic BH3 ABT-737, a potent inhibitor of anti-apoptotic Bcl-2 family proteins, has potential as anti-cancer drug in many cancers. Recently, patients treated with ABT-737 have developed drug tolerance during cancer therapy. Therefore, we examined whether ABT-737 is effective in killing MC-3 and HSC-3 human oral cancer cells either alone or in combination with the oncogenic kinase inhibitor, sorafenib. DESIGN The potentiating activities of sorafenib in ABT-737-induced apoptosis were determined using trypan blue exclusion assay, DAPI staining, cell viability assay and Western blot analysis. RESULTS Combined use of ABT-737 and sorafenib synergistically suppressed cell viability and induced apoptosis compared with either compound individually. The combination of ABT-737 and sorafenib altered only Bax and Bak proteins and their activations, resulting in mitochondrial translocation of Bax from the cytosol. Additionally, combination treatment-mediated apoptosis may be correlated with ERK and STAT3 pathways. CONCLUSIONS These results suggest that sorafenib may effectively overcome ABT-737 resistance to apoptotic cell death, which can be a new potential chemotherapeutic strategy against human oral cancer.
Collapse
Affiliation(s)
- Lee-Han Kim
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable material, Institute of Oral Bioscience, Chonbuk National University, Jeonju 54986, Republic of Korea
| | - Ji-Ae Shin
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Alkek Building for Biomedical Research, Houston, TX, 77030, USA
| | - Boonsil Jang
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable material, Institute of Oral Bioscience, Chonbuk National University, Jeonju 54986, Republic of Korea
| | - In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable material, Institute of Oral Bioscience, Chonbuk National University, Jeonju 54986, Republic of Korea
| | - Dong-Hoon Won
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable material, Institute of Oral Bioscience, Chonbuk National University, Jeonju 54986, Republic of Korea
| | - Joseph H Jeong
- Department of Urology, Medical College of Wisconsin, Milwaukee, WI, 53226, USA
| | - Tae-Ho Chung
- Department of Animal Resources Science, Joongbu University, Chungnam, 32713, Republic of Korea
| | - Nam-Pyo Cho
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable material, Institute of Oral Bioscience, Chonbuk National University, Jeonju 54986, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 03080, Republic of Korea.
| |
Collapse
|
43
|
Shin JA, Kim LH, Lee SJ, Jeong JH, Jung JY, Lee HN, Hong IS, Cho SD. Targeting ERK1/2-bim signaling cascades by BH3-mimetic ABT-737 as an alternative therapeutic strategy for oral cancer. Oncotarget 2016; 6:35667-83. [PMID: 26447615 PMCID: PMC4742133 DOI: 10.18632/oncotarget.5523] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 07/03/2015] [Accepted: 09/21/2015] [Indexed: 11/25/2022] Open
Abstract
To date, many different chemotherapeutic agents have been widely used as common treatments for oral cancers. However, their therapeutic effects have been disappointing, and these agents may have unwanted side effects. Among the many regulatory factors, overexpression of pro-survival Bcl-2 family members may promote resistance to chemotherapeutic drugs in many tumors. The BH3 domain-only proteins effectively antagonize their apoptotic activities. Therefore, there is substantial interest in developing chemotherapeutic drugs that directly target pro-survival Bcl-2 proteins by mimicking the BH3 domain and unleashing pro-apoptotic molecules in tumor cells. Among the numerous available small molecule BH3 mimetics, ABT-737, a potent small molecule that binds to Bcl-2/Bcl-xL with high affinity, has anti-tumor activity in a wide variety of cancer cells. However, the effects of ABT-737 on human oral cancers and the underlying molecular mechanisms have not previously been elucidated. In the present study, we observed that inactivation of the ERK1/2 signaling pathway using ABT-737 dramatically increased the expression of pro-apoptotic protein Bim via transcriptional and/or posttranslational regulation, in a cell type-dependent manner, inducing mitochondria-mediated apoptosis of human oral cancer cells. To the best of our knowledge, this is the first demonstration of the antitumor effects of ABT-737 on human oral cancers.
Collapse
Affiliation(s)
- Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Lee-Han Kim
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | - Sook-Jeong Lee
- Department of New Drug Discovery and Development, Chungnam National University, Daejon, Republic of Korea
| | - Joseph H Jeong
- Department of Dermatology and Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Ji-Youn Jung
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, Republic of Korea
| | - Hae Nim Lee
- Department of Companion and Laboratory Animal Science, Kongju National University, Yesan, Republic of Korea
| | - In-Sun Hong
- Department of Molecular Medicine, School of Medicine, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry, Institute of Biodegradable Material, Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| |
Collapse
|
44
|
Lee JH, Lee JH, Lee SH, Do SI, Cho SD, Forslund O, Inn KS, Lee JS, Deng FM, Melamed J, Jung JU, Jeong JH. TPL2 Is an Oncogenic Driver in Keratocanthoma and Squamous Cell Carcinoma. Cancer Res 2016; 76:6712-6722. [DOI: 10.1158/0008-5472.can-15-3274] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 05/09/2016] [Accepted: 06/27/2016] [Indexed: 11/16/2022]
|
45
|
Noh EJ, Kang MJ, Jeong YJ, Lee JY, Park JH, Choi HJ, Oh SM, Lee KB, Kim DJ, Shin JA, Cho SD, Park JH. Withaferin A inhibits inflammatory responses induced by Fusobacterium nucleatum and Aggregatibacter actinomycetemcomitans in macrophages. Mol Med Rep 2016; 14:983-8. [PMID: 27220676 DOI: 10.3892/mmr.2016.5326] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 04/26/2016] [Indexed: 11/06/2022] Open
Abstract
Periodontitis is a progressive chronic inflammatory disease and a major cause of tooth loss in humans. As a withanolides, withaferin A (WA) is known to exhibit strong anti‑inflammatory activity. The present study examined whether WA inhibited inflammatory responses in macrophages in response to two representative periodontal pathogens, Fusobacterium nucleatum and Aggregatibacter actinomycetemcomitans. Murine bone marrow‑derived macrophages (BMDMs) were used in this study and cytokine production in culture supernatants was measured by enzyme‑linked immunosorbent assays. Western blot analysis was performed to determine the activation of nuclear factor‑κB and mitogen‑activated protein kinases (MAPKs) and the expression of inducible nitric oxide synthase (iNOS), toll‑like receptor (TLR) 2 and TLR4. The production of nitric oxide (NO) was determined by the Griess reaction. WA treatment was shown to decrease interleukin (IL)‑6 and tumor necrosis factor (TNF)‑α production in BMDMs in response to F. nucleatum and A. actinomycetemcomitans in a dose‑dependent manner. The phosphorylation of IκB‑α and MAPKs (p38, extracellular signal‑regulated kinases and c‑Jun N‑terminal kinases) induced by F. nucleatum and A. actinomycetemcomitans was also inhibited by WA. F. nucleatum and A. actinomycetemcomitans induced iNOS expression and NO production in BMDMs, which was inhibited by WA in a dose‑dependent manner. WA also reduced endogenous and induced expression of TLR2 and TLR4 in these cells. These results suggest that WA may be a potential therapeutic agent or preventive additive for periodontitis control.
Collapse
Affiliation(s)
- Eui-Jeong Noh
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 302‑718, Republic of Korea
| | - Ming-Jung Kang
- Laboratory of Animal Medicine, College of Veterinary Medicine and BK21 Project Team, Chonnam National University, Gwangju 500‑757, Republic of Korea
| | - Yu-Jin Jeong
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 302‑718, Republic of Korea
| | - Jun-Young Lee
- Laboratory of Animal Medicine, College of Veterinary Medicine and BK21 Project Team, Chonnam National University, Gwangju 500‑757, Republic of Korea
| | - Jung-Hwan Park
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 302‑718, Republic of Korea
| | - Hye-Jin Choi
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 302‑718, Republic of Korea
| | - Sang-Muk Oh
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 302‑718, Republic of Korea
| | - Kyung-Bok Lee
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 302‑718, Republic of Korea
| | - Dong-Jae Kim
- Department of Biochemistry, College of Medicine, Konyang University, Daejeon 302‑718, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience, Chonbuk National University, Jeonju, North Jeolla 561‑756, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience, Chonbuk National University, Jeonju, North Jeolla 561‑756, Republic of Korea
| | - Jong-Hwan Park
- Laboratory of Animal Medicine, College of Veterinary Medicine and BK21 Project Team, Chonnam National University, Gwangju 500‑757, Republic of Korea
| |
Collapse
|
46
|
Ju HM, Yu KW, Cho SD, Cheong SH, Kwon KH. Anti-cancer effects of traditional Korean wild vegetables in complementary and alternative medicine. Complement Ther Med 2016; 24:47-54. [DOI: 10.1016/j.ctim.2015.11.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 07/18/2015] [Accepted: 11/26/2015] [Indexed: 11/16/2022] Open
|
47
|
Shin JA, Seo JM, Oh S, Cho SD, Lee KE. Myeloid cell leukemia-1 is a molecular indicator for malignant transformation of oral lichen planus. Oncol Lett 2016; 11:1603-1607. [PMID: 26893789 DOI: 10.3892/ol.2016.4083] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 12/14/2015] [Indexed: 12/23/2022] Open
Abstract
Oral lichen planus (OLP), characterized by a chronic mucocutaneous inflammatory condition, is a common disease of the oral cavity. Retrospective and prospective epidemiological data suggest that OLP is considered to have malignant potential. However, it is unclear as to which types of molecules may cause malignant transformation of OLP. In the present study, the presence of myeloid cell leukemia-1 (Mcl-1) and B-cell lymphoma-2 (Bcl-2) was studied by western blot analysis in 11 OLP and three normal oral mucosa (NOM) samples and in two human oral cancer cell lines. The functional role of Mcl-1 in oral cancer cells was analyzed using a trypan blue exclusion assay and soft agar assay. Mcl-1 was strongly expressed in the OLP and the two oral cancer cell lines compared with NOM, whereas Bcl-2 was not. Sorafenib and mithramycin A decreased cell viability in MC-3 and HSC-3 oral cancer cells and at same concentration they reduced the expression level of Mcl-1 in the two cell lines. The two chemicals affected Mcl-1 protein and significantly inhibited neoplastic cell transformation in the two cell lines. We suggest that the malignant potential of OLP may be associated with the expression of Mcl-1, and that downregulation of Mcl-1 may prevent malignant transformation of OLP to oral cancer.
Collapse
Affiliation(s)
- Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry and Institute of Biodegradable Material, Institute of Oral Bioscience, Brain Korea 21 Project, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Jae-Min Seo
- Department of Prosthodontics, School of Dentistry and Institute of Oral Bioscience, Biomedical Research Institute, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Sejun Oh
- Department of Oral Pathology, School of Dentistry and Institute of Biodegradable Material, Institute of Oral Bioscience, Brain Korea 21 Project, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry and Institute of Biodegradable Material, Institute of Oral Bioscience, Brain Korea 21 Project, Chonbuk National University, Jeonju 561-756, Republic of Korea
| | - Kyung-Eun Lee
- Department of Oral Medicine, School of Dentistry, Institute of Oral Bioscience, Chonbuk National University, Jeonju 561-756, Republic of Korea; Research Institute of Clinical Medicine of Chonbuk National University - Biomedical Research Institute of Chonbuk National University Hospital, Jeonju 561-712, Republic of Korea
| |
Collapse
|
48
|
Abstract
Diabetes mellitus is closely related to oral-complicated diseases by oxidative stress. This study investigates whether cellular myeloblastosis (c-myb) could protect human dental pulp cells against glucose oxidative stress and regulate autophagy activity for pulp vitality. Diabetes mellitus was induced by streptozotocin in Sprague-Dawley rats, and their pulp tissue in teeth was analyzed in terms of pulp cavity and molecules by hematoxylin and eosin and immunohistochemistry staining. Human dental pulp cells were serially subcultured and treated with glucose oxidase in the presence of elevated glucose to generate glucose oxidative stress. The replication-deficient adenovirus c-myb and small interfering RNA c-myb were introduced for c-myb expression. The pulp tissue from the diabetic rats was structurally different from normal tissue in terms of narrow pulp capacity, reduced c-myb, and dentinogenesis molecules. Glucose oxidase treatment decreased c-myb and dentinogenesis molecules (bone morphogenetic protein 2 and 7, dentin matrix protein 1, and dentin sialophosphoprotein) in human dental pulp cells. However, overexpression of c-myb by adenovirus c-myb increased dentinogenesis, autophagy molecules (autophagy protein 5, microtubule-associated protein 1A/1B-light chain 3, and Beclin-1), and cell survival via p-AMPK/AKT signaling even with glucose oxidative stress. In contrast, the lack of c-myb decreased the above molecules and cell survival by downregulating p-AMPK/AKT signaling. The results indicate that diabetes leads to irreversible damage to dental pulp, which is related to downexpression of autophagy via the p-AMPK/AKT pathway by decline of c-myb. The findings of this study provide a new insight that c-myb could ameliorate autophagy activity and that it is applicable for monitoring complicated diseases of dental pulp. The involvement of c-myb in pulp pathology could serve a therapeutic target in oral-complicated diseases.
Collapse
Affiliation(s)
- Y H Lee
- Department of Oral Biochemistry, Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - H S Kim
- Department of Conservative Dentistry, Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - J S Kim
- Department of Oral Biochemistry, Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - M K Yu
- Department of Conservative Dentistry, Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - S D Cho
- Department of Oral Pathology, Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - J G Jeon
- Department of Preventive Dentistry, Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Korea
| | - H K Yi
- Department of Oral Biochemistry, Institute of Oral Bioscience, School of Dentistry, Chonbuk National University, Jeonju, Korea
| |
Collapse
|
49
|
Yang IH, Shin JA, Kim LH, Kwon KH, Cho SD. The caspase 3-dependent apoptotic effect of pycnogenol in human oral squamous cell carcinoma HSC-3 cells. J Clin Biochem Nutr 2015; 58:40-7. [PMID: 26798196 PMCID: PMC4705010 DOI: 10.3164/jcbn.15-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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: 01/12/2015] [Accepted: 08/26/2015] [Indexed: 01/22/2023] Open
Abstract
In the present study, the apoptotic effect of pycnogenol and its molecular mechanism in human oral squamous cell carcinoma HSC-3 cells were investigated. Pycnogenol significantly inhibited the viability of HSC-3 cells and suppressed neoplastic cell transformation in HSC-3 cells and TPA-treated JB6 cells. It caused caspase-dependent apoptosis evidenced by the increase in cleaved poly (ADP-ribose) polymerase and caspase 3 in a dose-dependent manner. Pycnogenol increased Bak protein by enhancing its protein stability whereas other Bcl-2 family members were not altered. In addition, the treatment with pycnogenol led to the production of reactive oxygen species and N-acetyl-l-cysteine almost blocked pycnogenol-induced reactive oxygen species generation. Taken together, these findings suggest that pycnogenol may be a potential candidate for the chemoprevention or chemotherapy of human oral cancer.
Collapse
Affiliation(s)
- In-Hyoung Yang
- Department of Oral Pathology, School of Dentistry, and Institute of Oral Bioscience, Chonbuk National University, Jeonju 561-756, Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry, and Institute of Oral Bioscience, Chonbuk National University, Jeonju 561-756, Korea
| | - Lee-Han Kim
- Department of Oral Pathology, School of Dentistry, and Institute of Oral Bioscience, Chonbuk National University, Jeonju 561-756, Korea
| | - Ki Han Kwon
- Department of Food Science and Nutrition, College of Health, Welfare and Education, Gwangju University, Gwangju 503-703, Korea
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry, and Institute of Oral Bioscience, Chonbuk National University, Jeonju 561-756, Korea
| |
Collapse
|
50
|
Jang B, Shin JA, Kim YS, Kim JY, Yi HK, Park IS, Cho NP, Cho SD. Growth-suppressive effect of suberoylanilide hydroxamic acid (SAHA) on human oral cancer cells. Cell Oncol (Dordr) 2015; 39:79-87. [PMID: 26582320 DOI: 10.1007/s13402-015-0255-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2015] [Indexed: 01/16/2023] Open
Abstract
PURPOSE The histone deacetylase (HDAC) inhibitor suberoylanilide hydroxamic acid (SAHA) has been reported to exhibit anticancer activities in various cancer cell types, but as yet there are few reports on the anticancer effects of SAHA in oral squamous cell carcinoma (OSCC)-derived cells and xenograft models. METHODS The anti-proliferative and apoptotic activities of SAHA were assessed in human HSC-3 and HSC-4 (OSCC)-derived cell lines and JB6 normal mouse skin-derived epidermal cells using histone acetylation, soft agar colony formation, trypan blue exclusion, 4'-6-diamidino-2-phenylindole (DAPI) staining, Live/Dead viability/cytotoxicity and Western blot analyses. RESULTS We found that SAHA treatment resulted in hyperacetylation of histones H2A and H3 and a concomitant decrease in the viability of HSC-3 and HSC-4 cells. SAHA also significantly inhibited the neoplastic transformation of JB6 cells treated with TPA, whereas the viability of these cells was not affected by this treatment. Additionally, we found that SAHA suppressed the anchorage-independent growth (colony forming capacity in soft agar) of HSC-3 and HSC-4 cells. DAPI staining, Live/Dead and Western blot analyses revealed that SAHA can induce caspase-dependent apoptosis in HSC-3 and HSC-4 cells. We also found that SAHA treatment led to inhibition of ERK phosphorylation, and that two MEK inhibitors potentiated SAHA-mediated apoptosis. Okadaic acid treatment inhibited SAHA-mediated apoptosis in both the HSC-3 and HSC-4 cell lines, wheras SAHA induced a profound in vivo inhibition of tumor growth in HSC-3 xenografts. CONCLUSIONS Our results indicate that the ERK signaling pathway may constitute a critical denominator of SAHA-induced apoptosis in OSCC-derived cells and that SAHA may have therapeutic potential for OSCC.
Collapse
Affiliation(s)
- Boonsil Jang
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience and Biodegradable Material, Chonbuk National University, Jeonju, 561-756, Republic of Korea
| | - Ji-Ae Shin
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience and Biodegradable Material, Chonbuk National University, Jeonju, 561-756, Republic of Korea
| | - Yong-Soo Kim
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Chonbuk National University, Jeonju, 561-756, Republic of Korea
| | - Ji-Young Kim
- Center of Animal Care and Use, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 406-840, Republic of Korea
| | - Ho-Keun Yi
- Department of Oral Biochemistry, School of Dentistry, Institute of Oral Bioscience, Chonbuk National University, Jeonju, 561-756, Republic of Korea
| | - Il-Song Park
- Division of Advanced Materials Engineering, Research Center for Advanced Materials Development and Institute of Biodegradable Materials, Chonbuk National University, Jeonju, 561-756, Republic of Korea
| | - Nam-Pyo Cho
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience and Biodegradable Material, Chonbuk National University, Jeonju, 561-756, Republic of Korea.
| | - Sung-Dae Cho
- Department of Oral Pathology, School of Dentistry, Institute of Oral Bioscience and Biodegradable Material, Chonbuk National University, Jeonju, 561-756, Republic of Korea.
| |
Collapse
|