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Han SC, Kang JI, Choi YK, Boo HJ, Yoon WJ, Kang HK, Yoo ES. Intermittent Fasting Modulates Immune Response by Generating Tregs via TGF-β Dependent Mechanisms in Obese Mice with Allergic Contact Dermatitis. Biomol Ther (Seoul) 2024; 32:136-145. [PMID: 37424516 PMCID: PMC10762271 DOI: 10.4062/biomolther.2023.053] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 03/09/2023] [Revised: 05/25/2023] [Accepted: 06/14/2023] [Indexed: 07/11/2023] Open
Abstract
People with obesity maintain low levels of inflammation; therefore, their exposure to foreign antigens can trigger an excessive immune response. In people with obesity or allergic contact dermatitis (ACD), symptoms are exacerbated by a reduction in the number of regulatory T cells (Tregs) and IL-10/TGF-β-modified macrophages (M2 macrophages) at the inflammatory site. Benefits of intermittent fasting (IF) have been demonstrated for many diseases; however, the immune responses regulated by macrophages and CD4+T cells in obese ACD animal models are poorly understood. Therefore, we investigated whether IF suppresses inflammatory responses and upregulates the generation of Tregs and M2 macrophages in experimental ACD animal models of obese mice. The IF regimen relieved various ACD symptoms in inflamed and adipose tissues. We showed that the IF regimen upregulates Treg generation in a TGF-β-dependent manner and induces CD4+T cell hypo-responsiveness. IF-M2 macrophages, which strongly express TGF-β and inhibit CD4+T cell proliferation, directly regulated Treg differentiation from CD4+T cells. These results indicate that the IF regimen enhances the TGF-β-producing ability of M2 macrophages and that the development of Tregs keeps mice healthy against ACD exacerbated by obesity. Therefore, the IF regimen may ameliorate inflammatory immune disorders caused by obesity.
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Affiliation(s)
- Sang-Chul Han
- Department of Medicine, College of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Jung-Il Kang
- Department of Medicine, College of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Youn Kyung Choi
- Department of Medicine, College of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Hye-Jin Boo
- Department of Medicine, College of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Weon-Jong Yoon
- Jeju Biodiversity Research Institute (JBRI), Jeju Technopark (JTP), Jeju 63208, Republic of Korea
| | - Hee-Kyoung Kang
- Department of Medicine, College of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Eun-Sook Yoo
- Department of Medicine, College of Medicine, Jeju National University, Jeju 63243, Republic of Korea
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2
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Kang JI, Choi YK, Han SC, Kim HG, Hong SW, Kim J, Kim JH, Hyun JW, Yoo ES, Kang HK. Limonin, a Component of Immature Citrus Fruits, Activates Anagen Signaling in Dermal Papilla Cells. Nutrients 2022; 14:nu14245358. [PMID: 36558517 PMCID: PMC9787355 DOI: 10.3390/nu14245358] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Hair loss remains a significant problem that is difficult to treat; therefore, there is a need to identify safe natural materials that can help patients with hair loss. We evaluated the hair anagen activation effects of limonin, which is abundant in immature citrus fruits. Limonin increased the proliferation of rat dermal papilla cells (rDPC) by changing the levels of cyclin D1 and p27, and increasing the number of BrdU-positive cells. Limonin increased autophagy by decreasing phosphorylated mammalian target of rapamycin levels and increasing the phospho-Raptor, ATG7 and LC3B. Limonin also activated the Wnt/β-catenin pathway by increasing phospho-β-catenin levels. XAV939, a Wnt/β-catenin inhibitor, inhibited these limonin-induced changes, including induced autophagy, BrdU-positive cells, and cell proliferation. Limonin increased the phosphorylated AKT levels in both two-dimensional cultured rDPC and three-dimensional spheroids. Treatment with the PI3K inhibitor wortmannin inhibited limonin-induced proliferation, and disrupted other limonin-mediated changes, including decreased p27, increased BrdU-positive cells, induced autophagy, and increased ATG7 and LC3B levels. Wortmannin also inhibited limonin-induced cyclin D1 and LC3 expression in spheroids. Collectively, these results indicate that limonin can enhance anagen signaling by activating autophagy via targeting the Wnt/β-catenin and/or PI3K/AKT pathways in rDPC, highlighting a candidate nutrient for hair loss treatment.
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Affiliation(s)
- Jung-Il Kang
- Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Youn Kyoung Choi
- Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Sang-Chul Han
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Hyeon Gyu Kim
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Seok Won Hong
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Jungeun Kim
- Department of Chemistry & Cosmetics, Jeju National University, Jeju 63243, Republic of Korea
| | - Jae Hoon Kim
- Department of Biotechnology, College of Applied Life Science, SARI, Jeju National University, Jeju 63243, Republic of Korea
- Subtropical/Tropical Organism Gene Bank, Jeju National University, Jeju 63243, Republic of Korea
| | - Jin Won Hyun
- Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Eun-Sook Yoo
- Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Hee-Kyoung Kang
- Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
- Correspondence: ; Tel.: +82-64-754-3846; Fax: +82-64-702-2687
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3
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Choi YK, Kang JI, Hyun JW, Koh YS, Kang JH, Hyun CG, Yoon KS, Lee KS, Lee CM, Kim TY, Yoo ES, Kang HK. Myristoleic Acid Promotes Anagen Signaling by Autophagy through Activating Wnt/β-Catenin and ERK Pathways in Dermal Papilla Cells. Biomol Ther (Seoul) 2021; 29:211-219. [PMID: 33518533 PMCID: PMC7921852 DOI: 10.4062/biomolther.2020.169] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/11/2020] [Accepted: 01/06/2021] [Indexed: 02/06/2023] Open
Abstract
Alopecia is a distressing condition caused by the dysregulation of anagen, catagen, and telogen in the hair cycle. Dermal papilla cells (DPCs) regulate the hair cycle and play important roles in hair growth and regeneration. Myristoleic acid (MA) increases Wnt reporter activity in DPCs. However, the action mechanisms of MA on the stimulation of anagen signaling in DPCs is not known. In this study, we evaluated the effects of MA on anagen-activating signaling pathways in DPCs. MA significantly increased DPC proliferation and stimulated the G2/M phase, accompanied by increasing cyclin A, Cdc2, and cyclin B1. To elucidate the mechanism by which MA promotes DPC proliferation, we evaluated the effect of MA on autophagy and intracellular pathways. MA induced autophagosome formation by decreasing the levels of the phospho-mammalian target of rapamycin (phospho-mTOR) and increasing autophagy-related 7 (Atg7) and microtubule-associated protein 1A/1B-light chain 3II (LC3II). MA also increased the phosphorylation levels of Wnt/β-catenin proteins, such as GSK3β (Ser9) and β-catenin (Ser552 and Ser675). Treatment with XAV939, an inhibitor of the Wnt/β-catenin pathway, attenuated the MA-induced increase in β-catenin nuclear translocation. Moreover, XAV939 reduced MA-induced effects on cell cycle progression, autophagy, and DPC proliferation. On the other hand, MA increased the levels of phospho (Thr202/Tyr204)-extracellular signal regulated kinases (ERK). MA-induced ERK phosphorylation led to changes in the expression levels of Cdc2, Atg7 and LC3II, as well as DPC proliferation. Our results suggest that MA promotes anagen signaling via autophagy and cell cycle progression by activating the Wnt/β-catenin and ERK pathways in DPCs.
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Affiliation(s)
- Youn Kyung Choi
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Jung-Il Kang
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Jin Won Hyun
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Young Sang Koh
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Ji-Hoon Kang
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Chang-Gu Hyun
- Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea.,Department of Chemistry & Cosmetics, Jeju National University, Jeju 63243, Republic of Korea
| | - Kyung-Sup Yoon
- Department of Chemistry & Cosmetics, Jeju National University, Jeju 63243, Republic of Korea
| | - Kwang Sik Lee
- DSongpa R&D Center, Coreana Cosmetic Co., Ltd, Cheonan 31041, Republic of Korea
| | - Chun Mong Lee
- DSongpa R&D Center, Coreana Cosmetic Co., Ltd, Cheonan 31041, Republic of Korea
| | - Tae Yang Kim
- DSongpa R&D Center, Coreana Cosmetic Co., Ltd, Cheonan 31041, Republic of Korea
| | - Eun-Sook Yoo
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Hee-Kyoung Kang
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
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Kang JI, Choi YK, Koh YS, Hyun JW, Kang JH, Lee KS, Lee CM, Yoo ES, Kang HK. Vanillic Acid Stimulates Anagen Signaling via the PI3K/Akt/ β-Catenin Pathway in Dermal Papilla Cells. Biomol Ther (Seoul) 2020; 28:354-360. [PMID: 32394669 PMCID: PMC7327143 DOI: 10.4062/biomolther.2019.206] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/18/2020] [Accepted: 03/23/2020] [Indexed: 11/29/2022] Open
Abstract
The hair cycle (anagen, catagen, and telogen) is regulated by the interaction between mesenchymal cells and epithelial cells in the hair follicles. The proliferation of dermal papilla cells (DPCs), mesenchymal-derived fibroblasts, has emerged as a target for the regulation of the hair cycle. Here, we show that vanillic acid, a phenolic acid from wheat bran, promotes the proliferation of DPCs via a PI3K/Akt/Wnt/β-catenin dependent mechanism. Vanillic acid promoted the proliferation of DPCs, accompanied by increased levels of cell-cycle proteins cyclin D1, CDK6, and Cdc2 p34. Vanillic acid also increased the levels of phospho(ser473)-Akt, phospho(ser780)-pRB, and phospho(thr37/46)-4EBP1 in a time-dependent manner. Wortmannin, an inhibitor of the PI3K/Akt pathway, attenuated the vanillic acid-mediated proliferation of DPCs. Vanillic acid-induced progression of the cell-cycle was also suppressed by wortmannin. Moreover, vanillic acid increased the levels of Wnt/β-catenin proteins, such as phospho(ser9)-glycogen synthase kinase-3β, phospho(ser552)-β-catenin, and phospho(ser675)-β-catenin. We found that vanillic acid increased the levels of cyclin D1 and Cox-2, which are target genes of β-catenin, and these changes were inhibited by wortmannin. To investigate whether vanillic acid affects the downregulation of β-catenin by dihydrotestosterone (DHT), implicated in the development of androgenetic alopecia, DPCs were stimulated with DHT in the presence and absence of vanillic acid for 24 h. Western blotting and confocal microscopy analyses showed that the decreased level of β-catenin after the incubation with DHT was reversed by vanillic acid. These results suggest that vanillic acid could stimulate anagen and alleviate hair loss by activating the PI3K/Akt and Wnt/β-catenin pathways in DPCs.
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Affiliation(s)
- Jung-Il Kang
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Youn Kyung Choi
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Young-Sang Koh
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Jin-Won Hyun
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Ji-Hoon Kang
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Kwang Sik Lee
- Songpa R&D Center, Coreana Cosmetic Co., Ltd, Cheonan 31041, Republic of Korea
| | - Chun Mong Lee
- Songpa R&D Center, Coreana Cosmetic Co., Ltd, Cheonan 31041, Republic of Korea
| | - Eun-Sook Yoo
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
| | - Hee-Kyoung Kang
- Department of Medicine, School of Medicine, Jeju National University, Jeju 63243, Republic of Korea.,Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea
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Kim SM, Kang JI, Yoon HS, Choi YK, Go JS, Oh SK, Ahn M, Kim J, Koh YS, Hyun JW, Yoo ES, Kang HK. HNG, A Humanin Analogue, Promotes Hair Growth by Inhibiting Anagen-to-Catagen Transition. Int J Mol Sci 2020; 21:ijms21124553. [PMID: 32604799 PMCID: PMC7348781 DOI: 10.3390/ijms21124553] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/22/2020] [Accepted: 06/22/2020] [Indexed: 02/07/2023] Open
Abstract
The hair follicle goes through repetitive cycles including anagen, catagen, and telogen. The interaction of dermal papilla cells (DPCs) and keratinocytes regulates the hair cycle and hair growth. Humanin was discovered in the surviving brain cells of patients with Alzheimer’s disease. HNG, a humanin analogue, activates cell growth, proliferation, and cell cycle progression, and it protects cells from apoptosis. This study was performed to investigate the promoting effect and action mechanisms of HNG on hair growth. HNG significantly increased DPC proliferation. HNG significantly increased hair shaft elongation in vibrissa hair follicle organ culture. In vivo experiment showed that HNG prolonged anagen duration and inhibited hair follicle cell apoptosis, indicating that HNG inhibited the transition from the anagen to catagen phase mice. Furthermore, HNG activated extracellular signal-regulated kinase (Erk)1/2, Akt, and signal transducer and activator of transcription (Stat3) within minutes and up-regulated vascular endothelial growth factor (VEGF) levels on DPCs. This means that HNG could induce the anagen phase longer by up-regulating VEGF, which is a Stat3 target gene and one of the anagen maintenance factors. HNG stimulated the anagen phase longer with VEGF up-regulation, and it prevented apoptosis by activating Erk1/2, Akt, and Stat3 signaling.
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Affiliation(s)
- Sung Min Kim
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea; (S.M.K.); (J.-I.K.); (H.-S.Y.); (Y.K.C.); (J.S.G.); (S.K.O.); (Y.S.K.); (J.W.H.); (E.-S.Y.)
| | - Jung-Il Kang
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea; (S.M.K.); (J.-I.K.); (H.-S.Y.); (Y.K.C.); (J.S.G.); (S.K.O.); (Y.S.K.); (J.W.H.); (E.-S.Y.)
| | - Hoon-Seok Yoon
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea; (S.M.K.); (J.-I.K.); (H.-S.Y.); (Y.K.C.); (J.S.G.); (S.K.O.); (Y.S.K.); (J.W.H.); (E.-S.Y.)
| | - Youn Kyung Choi
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea; (S.M.K.); (J.-I.K.); (H.-S.Y.); (Y.K.C.); (J.S.G.); (S.K.O.); (Y.S.K.); (J.W.H.); (E.-S.Y.)
| | - Ji Soo Go
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea; (S.M.K.); (J.-I.K.); (H.-S.Y.); (Y.K.C.); (J.S.G.); (S.K.O.); (Y.S.K.); (J.W.H.); (E.-S.Y.)
| | - Sun Kyung Oh
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea; (S.M.K.); (J.-I.K.); (H.-S.Y.); (Y.K.C.); (J.S.G.); (S.K.O.); (Y.S.K.); (J.W.H.); (E.-S.Y.)
| | - Meejung Ahn
- Department of Animal Science, College of Life Science, Sangji University, Wonju 26339, Korea;
| | - Jeongtae Kim
- Department of Anatomy, Kosin University College of Medicine, Busan 49267, Korea;
| | - Young Sang Koh
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea; (S.M.K.); (J.-I.K.); (H.-S.Y.); (Y.K.C.); (J.S.G.); (S.K.O.); (Y.S.K.); (J.W.H.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea
| | - Jin Won Hyun
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea; (S.M.K.); (J.-I.K.); (H.-S.Y.); (Y.K.C.); (J.S.G.); (S.K.O.); (Y.S.K.); (J.W.H.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea
| | - Eun-Sook Yoo
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea; (S.M.K.); (J.-I.K.); (H.-S.Y.); (Y.K.C.); (J.S.G.); (S.K.O.); (Y.S.K.); (J.W.H.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea
| | - Hee-Kyoung Kang
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea; (S.M.K.); (J.-I.K.); (H.-S.Y.); (Y.K.C.); (J.S.G.); (S.K.O.); (Y.S.K.); (J.W.H.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea
- Correspondence: ; Tel.: +82-64-754-3846; Fax: +82-64-702-2687
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Choi YK, Kang JI, Han S, Kim YR, Jo J, Kang YW, Choo DR, Hyun JW, Koh YS, Yoo ES, Kang HK. L-Ascorbic Acid Inhibits Breast Cancer Growth by Inducing IRE/JNK/CHOP-Related Endoplasmic Reticulum Stress-Mediated p62/SQSTM1 Accumulation in the Nucleus. Nutrients 2020; 12:nu12051351. [PMID: 32397306 PMCID: PMC7284633 DOI: 10.3390/nu12051351] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/24/2020] [Accepted: 05/02/2020] [Indexed: 12/11/2022] Open
Abstract
Anticancer effects of L-ascorbic acid (Vitamin C, L-AA) have been reported in various types of cancers. L-AA intake reduces breast cancer recurrence and mortality; however, the role of L-AA in the treatment of breast cancer remains poorly understood. In this study, we investigated the effect and mechanism action of L-AA on breast cancer growth. L-AA inhibited the growth of breast cancer cells by inducing apoptotic cell death at the evaluated treatment concentrations without affecting normal cells. Moreover, L-AA induces autophagosome formation via regulation of mammalian target of rapamycin (mTOR), Beclin1, and autophagy-related genes (ATGs) and increased autophagic flux. Notably, we observed that L-AA increased p62/SQSTM1 (sequestosome 1) protein levels. Accumulation of p62 protein in cancer cells in response to stress has been reported, but its role in cancer regulation remains controversial. Here, we demonstrated that L-AA-induced p62 accumulation is related to L-AA-induced breast cancer growth inhibition. Furthermore, L-AA induced endoplasmic reticulum (ER) stress via the IRE–JNK–CHOP (inositol-requiring endonuclease–c-Jun N-terminal kinase–C/EBP homologous protein) signaling pathways, which increased the nuclear levels of p62/SQSTM1. These findings provide evidence that L-AA-induced ER stress could be crucial for p62 accumulation-dependent cell death, and L-AA can be useful in breast cancer treatment.
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Affiliation(s)
- Youn Kyung Choi
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Jung-Il Kang
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Sanghoon Han
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Young Ree Kim
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Jaemin Jo
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Yong Woo Kang
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Do Ryeon Choo
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
| | - Jin Won Hyun
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University; 102 Jejudaehakno, Jeju 63243, Korea
| | - Young Sang Koh
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University; 102 Jejudaehakno, Jeju 63243, Korea
| | - Eun-Sook Yoo
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University; 102 Jejudaehakno, Jeju 63243, Korea
| | - Hee-Kyoung Kang
- Department of Medicine, School of Medicine, Jeju National University 102 Jejudaehakno, Jeju 63243, Korea; (Y.K.C.); (J.-I.K.); (S.H.); (Y.R.K.); (J.J.); (Y.W.K.); (D.R.C.); (J.W.H.); (Y.S.K.); (E.-S.Y.)
- Jeju Research Center for Natural Medicine, Jeju National University; 102 Jejudaehakno, Jeju 63243, Korea
- Correspondence: ; Tel.:+82-10-6214-5464
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7
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Yoon HS, Kang JI, Kim SM, Ko A, Koh YS, Hyun JW, Yoon SP, Ahn MJ, Kim YH, Kang JH, Yoo ES, Kang HK. Norgalanthamine Stimulates Proliferation of Dermal Papilla Cells via Anagen-Activating Signaling Pathways. Biol Pharm Bull 2019; 42:139-143. [PMID: 30606985 DOI: 10.1248/bpb.b18-00226] [Citation(s) in RCA: 5] [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] [Indexed: 11/22/2022]
Abstract
Norgalanthamine has been shown to possess hair-growth promoting effects, including increase in hair-fiber length in cultured rat vibrissa follicles and increase in dermal papilla cell (DPC) proliferation. However, the intracellular mechanisms that underlie the action of norgalanthamine in DPCs have not been investigated. In this study, we addressed the ability of norgalanthamine to trigger anagen-activating signaling pathways in DPCs. Norgalanthamine significantly increased extracellular signal-regulated kinase (ERK) 1/2 phosphorylation at 0.1 µM, a concentration at which DPC proliferation was also induced. Furthermore, the increases in norgalanthamine-induced ERK 1/2 activation and subsequent DPC proliferation were suppressed by the mitogen-activated protein kinase/ERK kinase (MEK) 1/2 inhibitor, U0126. A 0.1 µM dose of norgalanthamine also increased phosphorylation of AKT, which was followed by an increase in glycogen synthase kinase 3β phosphorylation and nuclear translocation of β-catenin. In addition, LY294002, a phosphatidylinositol 3 kinase (PI3K) inhibitor, blocked the effect of norgalanthamine on DPC proliferation. These results suggest that norgalanthamine can stimulate the anagen phase of the hair cycle in DPCs via activation of the ERK 1/2, PI3K/AKT, and Wnt/β-catenin pathways.
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Affiliation(s)
- Hoon-Seok Yoon
- Department of Medicine, School of Medicine, Jeju National University
| | - Jung-Il Kang
- Department of Medicine, School of Medicine, Jeju National University
| | - Sung Min Kim
- Department of Medicine, School of Medicine, Jeju National University
| | - Ara Ko
- Department of Medicine, School of Medicine, Jeju National University
| | - Young-Sang Koh
- Department of Medicine, School of Medicine, Jeju National University.,Jeju Research Center for Natural Medicine, Jeju National University
| | - Jin-Won Hyun
- Department of Medicine, School of Medicine, Jeju National University.,Jeju Research Center for Natural Medicine, Jeju National University
| | - Sang-Pil Yoon
- Department of Medicine, School of Medicine, Jeju National University
| | - Mee Jung Ahn
- Laboratory of Veterinary Anatomy, College of Veterinary Medicine, Jeju National University
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University
| | - Ji-Hoon Kang
- Department of Medicine, School of Medicine, Jeju National University
| | - Eun-Sook Yoo
- Department of Medicine, School of Medicine, Jeju National University.,Jeju Research Center for Natural Medicine, Jeju National University
| | - Hee-Kyoung Kang
- Department of Medicine, School of Medicine, Jeju National University.,Jeju Research Center for Natural Medicine, Jeju National University
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8
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Kang JI, Yoon HS, Kim SM, Park JE, Hyun YJ, Ko A, Ahn YS, Koh YS, Hyun JW, Yoo ES, Kang HK. Mackerel-Derived Fermented Fish Oil Promotes Hair Growth by Anagen-Stimulating Pathways. Int J Mol Sci 2018; 19:ijms19092770. [PMID: 30223485 PMCID: PMC6164340 DOI: 10.3390/ijms19092770] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 08/24/2018] [Revised: 09/07/2018] [Accepted: 09/10/2018] [Indexed: 12/28/2022] Open
Abstract
Hair growth is regulated by the interaction between dermal papilla cells (DPC) and other cells inside the hair follicle. Here, we show the effect and action mechanism of mackerel-derived fermented fish oil (FFO) extract and its component docosahexaenoic acid (DHA) in the control of hair growth. The hair growth effect of FFO extract was evaluated by the culture method of vibrissa follicles and in vivo dotmatrix planimetry method. FFO extract increased the length of hair-fibers and enabled stimulated initiation into the anagen phase of the hair cycle. As expected, FFO extract significantly increased DPC proliferation. FFO extract induced the progression of the cell cycle and the activation of extracellular signal-regulated kinase (ERK), p38 and Akt. FFO extract induced nuclear translocation of β-catenin, a stimulator of anagen phase, through an increase of phospho-glycogen synthase kinase3β (GSK3β) level. Since various prostaglandins are known to promote hair growth in humans and mice, we examined the effect of DHA, a main omega-3 fatty acid of FFO, on DPC proliferation. DHA not only increased DPC proliferation but also upregulated levels of cell cycle-associated proteins such as cyclin D1 and cdc2 p34. These results show that FFO extract and DHA promote hair growth through the anagen-activating pathways in DPC.
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Affiliation(s)
- Jung-Il Kang
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Hoon-Seok Yoon
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Sung Min Kim
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Jeong Eon Park
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Yu Jae Hyun
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Ara Ko
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Yong-Seok Ahn
- Choung Ryong Fisheries Co. Ltd., 7825 Iljudong-ro, Namwon-epu, Seogwipo, Jeju 63612, Korea.
| | - Young Sang Koh
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
- Jeju Research Center for Natural Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Jin Won Hyun
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
- Jeju Research Center for Natural Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Eun-Sook Yoo
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
- Jeju Research Center for Natural Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Hee-Kyoung Kang
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
- Jeju Research Center for Natural Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
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9
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Kim SC, Kang JI, Hyun JW, Kang JH, Koh YS, Kim YH, Kim KH, Ko JH, Yoo ES, Kang HK. 4- O-Methylhonokiol Protects HaCaT Cells from TGF-β1-Induced Cell Cycle Arrest by Regulating Canonical and Non-Canonical Pathways of TGF-β Signaling. Biomol Ther (Seoul) 2017; 25:417-426. [PMID: 28190316 PMCID: PMC5499621 DOI: 10.4062/biomolther.2016.003] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 10/07/2016] [Accepted: 11/15/2016] [Indexed: 11/25/2022] Open
Abstract
4-O-methylhonokiol, a neolignan compound from Magnolia Officinalis, has been reported to have various biological activities including hair growth promoting effect. However, although transforming growth factor-β (TGF-β) signal pathway has an essential role in the regression induction of hair growth, the effect of 4-O-methylhonokiol on the TGF-β signal pathway has not yet been elucidated. We thus examined the effect of 4-O-methylhonokiol on TGF-β-induced canonical and noncanonical pathways in HaCaT human keratinocytes. When HaCaT cells were pretreated with 4-O-methylhonokiol, TGF-β1-induced G1/G0 phase arrest and TGF-β1-induced p21 expression were decreased. Moreover, 4-O-methylhonokiol inhibited nuclear translocation of Smad2/3, Smad4 and Sp1 in TGF-β1-induced canonical pathway. We observed that ERK phosphorylation by TGF-β1 was significantly attenuated by treatment with 4-O-methylhonokiol. 4-O-methylhonokiol inhibited TGF-β1-induced reactive oxygen species (ROS) production and reduced the increase of NADPH oxidase 4 (NOX4) mRNA level in TGF-β1-induced noncanonical pathway. These results indicate that 4-O-methylhonokiol could inhibit TGF-β1-induced cell cycle arrest through inhibition of canonical and noncanonical pathways in human keratinocyte HaCaT cell and that 4-O-methylhonokiol might have protective action on TGF-β1-induced cell cycle arrest.
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Affiliation(s)
- Sang-Cheol Kim
- Department of Medicine, Jeju National University School of Medicine, Jeju 63243, Republic of Korea.,Freshwater Bioresources Utilization Division, Nakdonggang National Institute of Biological Resourecs, Sangju 37242, Republic of Korea
| | - Jung-Il Kang
- Department of Medicine, Jeju National University School of Medicine, Jeju 63243, Republic of Korea
| | - Jin-Won Hyun
- Department of Medicine, Jeju National University School of Medicine, Jeju 63243, Republic of Korea
| | - Ji-Hoon Kang
- Department of Medicine, Jeju National University School of Medicine, Jeju 63243, Republic of Korea
| | - Young-Sang Koh
- Department of Medicine, Jeju National University School of Medicine, Jeju 63243, Republic of Korea
| | - Young-Heui Kim
- R&D Center, Bioland Ltd., Cheonan 31257, Republic of Korea
| | - Ki-Ho Kim
- R&D Center, Bioland Ltd., Cheonan 31257, Republic of Korea
| | - Ji-Hee Ko
- Department of Medicine, Jeju National University School of Medicine, Jeju 63243, Republic of Korea
| | - Eun-Sook Yoo
- Department of Medicine, Jeju National University School of Medicine, Jeju 63243, Republic of Korea
| | - Hee-Kyoung Kang
- Department of Medicine, Jeju National University School of Medicine, Jeju 63243, Republic of Korea
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10
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Kang JI, Kim MK, Lee JH, Jeon YJ, Hwang EK, Koh YS, Hyun JW, Kwon SY, Yoo ES, Kang HK. Undariopsis peterseniana Promotes Hair Growth by the Activation of Wnt/β-Catenin and ERK Pathways. Mar Drugs 2017; 15:E130. [PMID: 28475144 PMCID: PMC5450536 DOI: 10.3390/md15050130] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [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: 03/16/2017] [Revised: 04/27/2017] [Accepted: 05/02/2017] [Indexed: 02/06/2023] Open
Abstract
In this study, we investigated the effect and mechanism of Undariopsis peterseniana, an edible brown alga, on hair growth. The treatment of vibrissa follicles with U. peterseniana extract ex vivo for 21 days significantly increased the hair-fiber lengths. The U. peterseniana extract also significantly accelerated anagen initiation in vivo. Moreover, we found that U. peterseniana extract was able to open the KATP channel, which may contribute to increased hair growth. The U. peterseniana extract decreased 5α-reductase activity and markedly increased the proliferation of dermal papilla cells, a central regulator of the hair cycle. The U. peterseniana extract increased the levels of cell cycle proteins, such as Cyclin D1, phospho(ser780)-pRB, Cyclin E, phospho-CDK2, and CDK2. The U. peterseniana extract also increased the phosphorylation of ERK and the levels of Wnt/β-catenin signaling proteins such as glycogen synthase kinase-3β (GSK-3β) and β-catenin. These results suggested that the U. peterseniana extract had the potential to influence hair growth by dermal papilla cells proliferation through the activation of the Wnt/β-catenin and ERK pathways. We isolated a principal of the U. peterseniana extract, which was subsequently identified as apo-9'-fucoxanthinone, a trichogenic compound. The results suggested that U. peterseniana extract may have a pivotal role in the treatment of alopecia.
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Affiliation(s)
- Jung-Il Kang
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Min-Kyoung Kim
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Ji-Hyeok Lee
- Department of Marine Life Science, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
- Aqua Green Technology Co. Ltd., 209 Jeju Bio-Industry Center, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Eun-Kyoung Hwang
- Seaweed Research Center, National Institute of Fisheries Science, 130 Tongilro, Mokpo 58746, Korea.
| | - Young-Sang Koh
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
- Jeju Research Center for Natural Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Jin-Won Hyun
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
- Jeju Research Center for Natural Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Soon-Young Kwon
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Eun-Sook Yoo
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
| | - Hee-Kyoung Kang
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
- Jeju Research Center for Natural Medicine, Jeju National University, 102 Jejudaehakno, Jeju 63243, Korea.
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11
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Kim TY, Kim SJ, Chung HG, Choi JH, Kim SH, Kang JI. Epigenetic alterations of the BDNF gene in combat-related post-traumatic stress disorder. Acta Psychiatr Scand 2017; 135:170-179. [PMID: 27886370 DOI: 10.1111/acps.12675] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/07/2016] [Indexed: 01/28/2023]
Abstract
OBJECTIVE Brain-derived neurotrophic factor (BDNF) plays a crucial role in modulating resilience and vulnerability to stress. The aim of this study was to investigate whether epigenetic regulation of the BDNF gene is a biomarker of post-traumatic stress disorder (PTSD) development among veterans exposed to combat in the Vietnam War. METHODS Using the Clinician-Administered PTSD Scale, combat veterans were grouped into those with (n = 126) and without (n = 122) PTSD. DNA methylation levels at four CpG sites within the BDNF promoter I region were quantified in the peripheral blood using pyrosequencing. The effects of BDNF DNA methylation levels and clinical variables on the diagnosis of PTSD were tested using binary logistic regression analysis. RESULTS Subjects with PTSD showed a higher DNA methylation of four CpG sites at the BDNF promoter compared with those without PTSD. High methylation levels at the BDNF promoter CpG site, high combat exposure, and alcohol problems were significantly associated with PTSD diagnosis. CONCLUSIONS This study demonstrated an association between higher DNA methylation of the BDNF promoter and PTSD diagnosis in combat-exposed individuals. Our findings suggest that altered BDNF methylation may be a valuable biomarker of PTSD after trauma exposure.
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Affiliation(s)
- T Y Kim
- Department of Neuropsychiatry, Veterans Health Service Medical Center, Seoul, South Korea
| | - S J Kim
- Department of Psychiatry and Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - H G Chung
- Department of Neuropsychiatry, Veterans Health Service Medical Center, Seoul, South Korea
| | - J H Choi
- Department of Neuropsychiatry, Veterans Health Service Medical Center, Seoul, South Korea
| | - S H Kim
- Department of Psychiatry and Institute of Clinical Psychopharmacology, Dongguk University Ilsan Hospital, Goyang, Gyeonggi, South Korea
| | - J I Kang
- Department of Psychiatry and Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea
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12
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Kang JI, Yoo ES, Hyun JW, Koh YS, Lee NH, Ko MH, Ko CS, Kang HK. Promotion Effect of Apo-9'-fucoxanthinone from Sargassum muticum on Hair Growth via the Activation of Wnt/β-Catenin and VEGF-R2. Biol Pharm Bull 2016; 39:1273-83. [PMID: 27476937 DOI: 10.1248/bpb.b16-00024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study was conducted to evaluate the effects of Sargassum muticum extract and apo-9'-fucoxanthinone, a principal component of S. muticum, on hair growth. When rat vibrissa follicles were treated with S. muticum extract for 21 d, the hair-fiber lengths for the vibrissa follicles increased significantly. Treatment with the S. muticum extract and the EtOAc fraction of the S. muticum extract markedly increased the proliferation of dermal papilla cells (DPCs) and decreased the 5α-reductase activity. In addition, the EtOAc fraction of the S. muticum extract significantly promoted anagen initiation in C57BL/6 mice. Especially, apo-9'-fucoxanthinone, an active constituent from the S. muticum extract, caused an increase in DPC proliferation and a decrease in 5α-reductase activity. To elucidate the molecular mechanisms of apo-9'-fucoxanthinone on the proliferation of DPCs, we examined the level of various signaling proteins. Apo-9'-fucoxanthinone increased the level of vascular endothelial growth factor receptor-2 (VEGF-R2), Wnt/β-catenin signaling proteins such as phospho(ser9)-glycogen synthase kinase-3β (GSK-3β) and phospho(ser552)-β-catenin, whereas apo-9'-fucoxanthinone did not affect the transforming growth factor-β (TGF-β) signaling proteins such as Smad2/3. These results suggest that apo-9'-fucoxanthinone from S. muticum could have the potential for hair growth with DPC proliferation via the activation of Wnt/β-catenin signaling and the VEGF-R2 pathway.
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Affiliation(s)
- Jung-Il Kang
- Department of Pharmacology, School of Medicine, Institute of Medical Sciences, Jeju National University
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13
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Kim JH, Kang JI, Kim MJ, Koh SE, Lee J, Lee IS, Jung H. Thoracic infectious spondylitis after surgical treatments of herniated lumbar intervertebral disc. Ann Rehabil Med 2013; 37:725-9. [PMID: 24236263 PMCID: PMC3825952 DOI: 10.5535/arm.2013.37.5.725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 10/29/2012] [Indexed: 12/05/2022] Open
Abstract
The postoperative infectious spondylitis has been reported to occur among every 1% to 12%. It is difficult to early diagnose in some cases. If the diagnosis is delayed, it can be a life-threatening condition. We report a 32-year-old male patient with postoperative infectious spondylitis. He had surgical treatments for traumatic intervertebral disc herniations in L3-4 and L4-5. Three weeks after surgery, he complained for fever and paraplegia. Cervicothoracic magnetic resonance imaging showed the collapsed T2 and T3 vertebral body with changes of bone marrow signal intensity. Moreover, it showed anterior and posterior epidural masses causing spinal cord compressions which suggested infectious spondylitis. After the use of antibiotics and surgical decompressions T2-T3, his general conditions were improved and muscle power of lower extremities began to be gradually restored. However, we could not identify the exact organisms that may be the cause of infectious spondylitis. It could be important that the infectious spondylitis, which is presented away from the primary operative level, should be observed in patients with fevers of unknown origin and paraplegia.
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Affiliation(s)
- Jin-Hyun Kim
- Department of Rehabilitation Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
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14
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Kang JI, Kim SC, Han SC, Hong HJ, Jeon YJ, Kim B, Koh YS, Yoo ES, Kang HK. Hair-Loss Preventing Effect of Grateloupia elliptica. Biomol Ther (Seoul) 2013; 20:118-24. [PMID: 24116284 PMCID: PMC3792195 DOI: 10.4062/biomolther.2012.20.1.118] [Citation(s) in RCA: 16] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 11/23/2011] [Accepted: 11/29/2011] [Indexed: 11/05/2022] Open
Abstract
This study was conducted to evaluate the effect of Grateloupia elliptica, a seaweed native to Jeju Island, Korea, on the prevention of hair loss. When immortalized rat vibrissa dermal papilla cells were treated with extract of G. elliptica, the proliferation of dermal papilla cells significantly increased. In addition, the G. elliptica extract significantly inhibited the activity of 5α-reductase, which converts testosterone to dihydrotestosterone (DHT), a main cause of androgenetic alopecia. On the other hand, the G. elliptica extract promoted PGE2 production in HaCaT cells in a dose-dependent manner. The G. elliptica extract exhibited particularly high inhibitory effect on LPS-stimulated IL-12, IL-6, and TNF-α production in lipopolysaccharide (LPS)-stimulated bone marrow-derived dendritic cells. The G. elliptica extract also showed inhibitory activity against Pityrosporum ovale, a main cause of dandruff. These results suggest that G. elliptica extract has the potential to treat alopecia via the proliferation of dermal papilla, 5α-reductase inhibition, increase of PGE2 production, decrease of LPS-stimulated pro-inflammatory cytokines and inhibitory activity against Pityrosporum ovale.
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Affiliation(s)
- Jung-Il Kang
- Department of Medicine, School of Medicine, Institute of Medical Sciences, Jeju National University, Jeju 690-756
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15
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Kang JI, Kim SY, Kim JH, Bang H, Lee IS. The location of multifidus atrophy in patients with a single level, unilateral lumbar radiculopathy. Ann Rehabil Med 2013; 37:498-504. [PMID: 24020030 PMCID: PMC3764344 DOI: 10.5535/arm.2013.37.4.498] [Citation(s) in RCA: 16] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 01/21/2013] [Indexed: 12/04/2022] Open
Abstract
Objective To identify the correlations between the location of multifidus atrophy and the level of lumbar radiculopathy. Methods Thirty-seven patients who had unilateral L4 or L5 radiculopathy were divided into 2 groups; the L4 radiculopathy (L4 RAD) group and the L5 radiculopathy (L5 RAD) group. Bilateral lumbar multifidus muscles at the mid-spinous process level of L4 vertebra (L4 MSP), the mid-spinous process level of L5 vertebra (L5 MSP), and the mid-sacral crest level of S1 vertebra (S1 MSC) were detected in T1 axial magnetic resonance imaging. The total muscle cross-sectional area of multifidus muscles (TMCSA) and the pure muscle cross-sectional area of multifidus muscles (PMCSA) were measured by a computerized analysis program, and the ratio of PMCSA to TMCSA (PMCSA/TMCSA) was calculated. Results There were no significant differences in TMCSA between the involved and the uninvolved sides in both groups. PMCSA was only significantly smaller at the S1 MSC on the involved side as compared with the uninvolved side in the L5 RAD group. The ratio of PMCSA to TMCSA was the lowest at the L5 MSP on the involved side in the L4 RAD group and at the S1 MSC on the involved side in the L5 RAD group. Conclusion Our findings suggest that the most severe atrophy of multifidus muscle may occur at the mid-spinous process or mid-sacral crest level of the vertebra which is one level below the segmental number of the involved nerve root in patients with a single-level, unilateral lumbar radiculopathy.
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Affiliation(s)
- Jung-Il Kang
- Department of Rehabilitation Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
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16
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Boo HJ, Hong JY, Kim SC, Kang JI, Kim MK, Kim EJ, Hyun JW, Koh YS, Yoo ES, Kwon JM, Kang HK. The anticancer effect of fucoidan in PC-3 prostate cancer cells. Mar Drugs 2013; 11:2982-99. [PMID: 23966032 PMCID: PMC3766877 DOI: 10.3390/md11082982] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [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: 06/28/2013] [Revised: 07/22/2013] [Accepted: 08/05/2013] [Indexed: 11/17/2022] Open
Abstract
Fucoidan, a sulfated polysaccharide, has a variety of biological activities, such as anti-cancer, anti-angiogenic and anti-inflammatory. However, the mechanisms of action of fucoidan as an anti-cancer agent have not been fully elucidated. The present study examined the anti-cancer effect of fucoidan obtained from Undaria pinnatifida in PC-3 cells, human prostate cancer cells. Fucoidan induced the apoptosis of PC-3 cells by activating both intrinsic and extrinsic pathways. The induction of apoptosis was accompanied by the activation of extracellular signal-regulated kinase mitogen-activated protein kinase (ERK1/2 MAPK) and the inactivation of p38 MAPK and phosphatidylinositol 3-kinase (PI3K)/Akt. In addition, fucoidan also induced the up-regulation of p21Cip1/Waf and down-regulation of E2F-1 cell-cycle-related proteins. Furthermore, in the Wnt/β-catenin pathway, fucoidan activated GSK-3β that resulted in the decrease of β-catenin level, followed by the decrease of c-myc and cyclin D1 expressions, target genes of β-catenin in PC-3 cells. These results suggested that fucoidan treatment could induce intrinsic and extrinsic apoptosis pathways via the activation of ERK1/2 MAPK, the inactivation of p38 MAPK and PI3K/Akt signaling pathway, and the down-regulation of Wnt/β-catenin signaling pathway in PC-3 prostate cancer cells. These data support that fucoidan might have potential for the treatment of prostate cancer.
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Affiliation(s)
- Hye-Jin Boo
- Department of Pharmacology, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (H.-J.B.); (J.-Y.H.); (S.-C.K.); (J.-I.K.); (M.-K.K.); (E.-J.K.); (E.-S.Y.)
| | - Ji-Young Hong
- Department of Pharmacology, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (H.-J.B.); (J.-Y.H.); (S.-C.K.); (J.-I.K.); (M.-K.K.); (E.-J.K.); (E.-S.Y.)
| | - Sang-Cheol Kim
- Department of Pharmacology, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (H.-J.B.); (J.-Y.H.); (S.-C.K.); (J.-I.K.); (M.-K.K.); (E.-J.K.); (E.-S.Y.)
| | - Jung-Il Kang
- Department of Pharmacology, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (H.-J.B.); (J.-Y.H.); (S.-C.K.); (J.-I.K.); (M.-K.K.); (E.-J.K.); (E.-S.Y.)
| | - Min-Kyoung Kim
- Department of Pharmacology, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (H.-J.B.); (J.-Y.H.); (S.-C.K.); (J.-I.K.); (M.-K.K.); (E.-J.K.); (E.-S.Y.)
| | - Eun-Ji Kim
- Department of Pharmacology, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (H.-J.B.); (J.-Y.H.); (S.-C.K.); (J.-I.K.); (M.-K.K.); (E.-J.K.); (E.-S.Y.)
| | - Jin-Won Hyun
- Department of Biochemistry, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mail:
| | - Young-Sang Koh
- Department of Microbiology, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mail:
| | - Eun-Sook Yoo
- Department of Pharmacology, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (H.-J.B.); (J.-Y.H.); (S.-C.K.); (J.-I.K.); (M.-K.K.); (E.-J.K.); (E.-S.Y.)
| | - Jung-Mi Kwon
- Department of Internal Medicine, School of Medicine, Institute of Medical Sciences, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea
| | - Hee-Kyoung Kang
- Department of Pharmacology, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (H.-J.B.); (J.-Y.H.); (S.-C.K.); (J.-I.K.); (M.-K.K.); (E.-J.K.); (E.-S.Y.)
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Park S, Kang JI, Bang H, Kim BR, Lee J. A case of the cauda equina syndrome associated with the intrathecal chemotherapy in a patient with primary central nervous system lymphoma. Ann Rehabil Med 2013; 37:420-5. [PMID: 23869341 PMCID: PMC3713300 DOI: 10.5535/arm.2013.37.3.420] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 05/18/2012] [Accepted: 07/16/2012] [Indexed: 11/29/2022] Open
Abstract
The intrathecal chemotherapy with methotrexate and cytarabine arabinoside is used for the treatment and prophylaxis of the primary central nervous system lymphoma. The therapy may induce neurotoxicity including the cauda equina syndrome. We report a case of a 58-year-old man with the diffuse large B-cell lymphoma, who developed the cauda equina syndrome after the administration of intrathecal methotrexate and cytarabine arabinoside, as diagnosed by the electrodiagnostic, urodynamic, and radiologic approaches.
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Affiliation(s)
- Seunglee Park
- Department of Rehabilitation Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
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Kang JI, Kim EJI, Kim MK, Jeon YJ, Kang SM, Koh YS, Yoo ES, Kang HK. The promoting effect of Ishige sinicola on hair growth. Mar Drugs 2013; 11:1783-99. [PMID: 23708185 PMCID: PMC3721205 DOI: 10.3390/md11061783] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [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: 04/24/2013] [Revised: 05/08/2013] [Accepted: 05/09/2013] [Indexed: 12/12/2022] Open
Abstract
This study was conducted to evaluate the promoting effect of Ishige sinicola, an alga native to Jeju Island, Korea, on hair growth. When vibrissa follicles were cultured in the presence of I. sinicola extract for 21 days, I. sinicola extract increased hair-fiber length. After topical application of I. sinicola extract onto the back of C57BL/6 mice, anagen progression of the hair shaft was induced. The I. sinicola extract significantly inhibited the activity of 5α-reductase. Treatment of immortalized vibrissa dermal papilla cells (DPCs) with I. sinicola extract resulted in increase of cell proliferation, which was accompanied by the increase of phospho-GSK3β level, β-catenin, Cyclin E and CDK2, whereas p27kip1 was down-regulated. In particular, octaphlorethol A, an isolated component from the I. sinicola extract, inhibited the activity of 5α-reductase and increased the proliferation of DPCs. These results suggest that I. sinicola extract and octaphlorethol A, a principal of I. sinicola, have the potential to treat alopecia via the proliferation of DPCs followed by the activation of β-catenin pathway, and the 5α-reductase inhibition.
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Affiliation(s)
- Jung-Il Kang
- Department of Medicine, School of Medicine, Institute of Medical Sciences, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (E.-J.K.); (M.-K.K.); (Y.-S.K.); (E.-S.Y.)
| | - Eun-JI Kim
- Department of Medicine, School of Medicine, Institute of Medical Sciences, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (E.-J.K.); (M.-K.K.); (Y.-S.K.); (E.-S.Y.)
| | - Min-Kyoung Kim
- Department of Medicine, School of Medicine, Institute of Medical Sciences, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (E.-J.K.); (M.-K.K.); (Y.-S.K.); (E.-S.Y.)
| | - You-Jin Jeon
- Aqua Green Technology Co. Ltd., 209 Jeju Bio-Industry Center, 102 Jejudaehakno, Jeju 690-121, Korea; E-Mail:
- Department of Marine Life Science, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mail:
| | - Sung-Myung Kang
- Department of Marine Life Science, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mail:
| | - Young-Sang Koh
- Department of Medicine, School of Medicine, Institute of Medical Sciences, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (E.-J.K.); (M.-K.K.); (Y.-S.K.); (E.-S.Y.)
| | - Eun-Sook Yoo
- Department of Medicine, School of Medicine, Institute of Medical Sciences, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (E.-J.K.); (M.-K.K.); (Y.-S.K.); (E.-S.Y.)
| | - Hee-Kyoung Kang
- Department of Medicine, School of Medicine, Institute of Medical Sciences, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (E.-J.K.); (M.-K.K.); (Y.-S.K.); (E.-S.Y.)
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Lee JY, Koh SE, Lee IS, Jung H, Lee J, Kang JI, Bang H. The cervical range of motion as a factor affecting outcome in patients with congenital muscular torticollis. Ann Rehabil Med 2013; 37:183-90. [PMID: 23705112 PMCID: PMC3660478 DOI: 10.5535/arm.2013.37.2.183] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [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: 05/23/2012] [Accepted: 09/13/2012] [Indexed: 11/27/2022] Open
Abstract
Objective To investigate the factors affecting rehabilitation outcomes in children with congenital muscular torticollis (CMT). Methods We retrospectively reviewed the medical records of 347 patients who were clinically suspected as having CMT and performed neck ultrasonography to measure sternocleidomastoid (SCM) muscle thickness. Fifty-four patients met the inclusion criteria. Included were demographic characteristics as well as measurements of cervical range of motion (ROM), SCM muscle thickness, and the abnormal/normal (A/N) ratio, defined as the ratio of SCM muscle thickness on the affected to the unaffected side. Results Subjects were divided into three groups depending on degree of cervical ROM (group 1A: ROM>60, n=12; group 1B: 60≥ROM>30, n=31; group 1C: ROM≤30, n=11), the SCM muscle thickness (Th) (group 2A: Th<1.2 cm, n=23; group 2B: 1.2≤Th<1.4 cm, n=18; group 2C: Th≥1.4 cm, n=13), and the A/N ratio (R) (group 3A: R<2.2, n=19; group 3B: 2.2≤R<2.8, n=20; group 3C: R≥2.8, n=15). We found that more limited cervical ROM corresponded to longer treatment duration. The average treatment duration was 4.55 months in group 1A, 5.87 months in group 1B, and 6.50 months in group 1C. SCM muscle thickness and the A/N ratio were not correlated with treatment duration. Conclusion Infants with CMT who were diagnosed earlier and had an earlier intervention had a shorter duration of rehabilitation. Initial cervical ROM is an important prognostic factor for predicting the rehabilitation outcome of patients with CMT.
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Affiliation(s)
- Jin-Youn Lee
- Department of Rehabilitation Medicine, Konkuk University School of Medicine and Konkuk University Medical Center, Seoul, Korea
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Hong JY, Boo HJ, Kang JI, Kim MK, Yoo ES, Hyun JW, Koh YS, Kim GY, Maeng YH, Hyun CL, Chang WY, Kim YH, Kim YR, Kang HK. (1S,2S,3E,7E,11E)-3,7,11,15-Cembratetraen-17,2-olide, a cembrenolide diterpene from soft coral Lobophytum sp., inhibits growth and induces apoptosis in human colon cancer cells through reactive oxygen species generation. Biol Pharm Bull 2012; 35:1054-63. [PMID: 22791152 DOI: 10.1248/bpb.b11-00024] [Citation(s) in RCA: 17] [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] [Indexed: 11/22/2022]
Abstract
We observed that (1S,2S,3E,7E,11E)-3,7,11,15-Cembratetraen-17,2-olide (LS-1), marine cembrenolide diterpene, inhibited growth and induced apoptosis in colon cancer cells via a reactive oxygen species (ROS) dependent mechanism. Treatment of HT-29 cells with LS-1 resulted in ROS generation, which was accompanied by disruption of mitochondrial membrane potential, cytosolic release of cytochrome c, sub-G1 peak accumulation, activation of Bid, caspase-3, -8, and -9, and cleavage of poly(ADP-ribose) polymerase (PARP) along with the suppressive expression of B cell lymphoma-2 (Bcl-2). All these effects were significantly blocked on pretreatment with the ROS inhibitor N-acetylcysteine (NAC), indicating the involvement of increased ROS in the proapoptotic activity of LS-1. Moreover, we showed that LS-1 induced the phosphorylation of c-Jun N-terminal kinase (JNK) and dephosphorylation of p38, extracellular signal-regulated kinase (ERK), Akt, Src and signal transducer and activator of transcription (STAT)3, which were effectively attenuated by NAC. In addition, the expressions of antioxidant catalase and glutathione peroxidase were abrogated by treatment using LS-1 with or without NAC. These findings reveal the novel anticancer efficacy of LS-1 mediated by the induction of apoptosis via ROS generation in human colon cancer cells.
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Affiliation(s)
- Ji-Young Hong
- Institute of Medical Sciences, School of Medicine, Jeju National University, Jeju 690-756, Republic of Korea
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Kang JI, Kim SC, Kim MK, Boo HJ, Jeon YJ, Koh YS, Yoo ES, Kang SM, Kang HK. Effect of Dieckol, a component of Ecklonia cava, on the promotion of hair growth. Int J Mol Sci 2012; 13:6407-6423. [PMID: 22754373 PMCID: PMC3382810 DOI: 10.3390/ijms13056407] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Revised: 04/13/2012] [Accepted: 05/14/2012] [Indexed: 12/28/2022] Open
Abstract
This study was conducted to evaluate the effect of Ecklonia cava, a marine alga native to Jeju Island in Korea, on the promotion of hair growth. When vibrissa follicles were cultured in the presence of E. cava enzymatic extract (which contains more than 35% of dieckol) for 21 days, E. cava enzymatic extract increased hair-fiber length. In addition, after topical application of the 0.5% E. cava enzymatic extract onto the back of C57BL/6 mice, anagen progression of the hair-shaft was induced. The treatment with E. cava enzymatic extract resulted in the proliferation of immortalized vibrissa dermal papilla cells (DPC). Especially, dieckol, among the isolated compounds from the E. cava enzymatic extract, showed activity that increased the proliferation of DPC. When NIH3T3 fibroblasts were treated with the E. cava enzymatic extract and the isolated compounds from the E. cava enzymatic extract, the E. cava enzymatic extract increased the proliferation of NIH3T3 fibroblasts, but the isolated compounds such as eckol, dieckol, phloroglucinol and triphlorethol-A did not affect the proliferation of NIH3T3 fibroblasts. On the other hand, the E. cava enzymatic extract and dieckol significantly inhibited 5α-reductase activity. These results suggest that dieckol from E. cava can stimulate hair growth by the proliferation of DPC and/or the inhibition of 5α-reductase activity.
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Affiliation(s)
- Jung-Il Kang
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (S.-C.K.); (M.-K.K.); (H.-J.B.); (Y.-S.K.); (E.-S.Y.)
| | - Sang-Cheol Kim
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (S.-C.K.); (M.-K.K.); (H.-J.B.); (Y.-S.K.); (E.-S.Y.)
| | - Min-Kyoung Kim
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (S.-C.K.); (M.-K.K.); (H.-J.B.); (Y.-S.K.); (E.-S.Y.)
| | - Hye-Jin Boo
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (S.-C.K.); (M.-K.K.); (H.-J.B.); (Y.-S.K.); (E.-S.Y.)
| | - You-Jin Jeon
- Aqua Green Technology Co. Ltd., 209 Jeju Bio-Industry Center, 102 Jejudaehakno, Jeju 690-121, Korea; E-Mail:
- Department of Marine Life Science, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mail:
| | - Young-Sang Koh
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (S.-C.K.); (M.-K.K.); (H.-J.B.); (Y.-S.K.); (E.-S.Y.)
| | - Eun-Sook Yoo
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (S.-C.K.); (M.-K.K.); (H.-J.B.); (Y.-S.K.); (E.-S.Y.)
| | - Sung-Myung Kang
- Department of Marine Life Science, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mail:
| | - Hee-Kyoung Kang
- Department of Medicine, School of Medicine, Jeju National University, 102 Jejudaehakno, Jeju 690-756, Korea; E-Mails: (J.-I.K.); (S.-C.K.); (M.-K.K.); (H.-J.B.); (Y.-S.K.); (E.-S.Y.)
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Boo HJ, Hyun JH, Kim SC, Kang JI, Kim MK, Kim SY, Cho H, Yoo ES, Kang HK. Fucoidan from Undaria pinnatifida induces apoptosis in A549 human lung carcinoma cells. Phytother Res 2011; 25:1082-6. [PMID: 21452391 DOI: 10.1002/ptr.3489] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Fucoidan, a sulfated polysaccharide, has various biological activities, such as anticancer, antiangiogenic and antiinflammatory effects; however, the mechanisms of action of fucoidan on anticancer activity have not been fully elucidated. The anticancer effects of fucoidan from Undaria pinnatifida on A549 human lung carcinoma cells were examined. Treatment of A549 cells with fucoidan resulted in potent antiproliferative activity. Also, some typical apoptotic characteristics, such as chromatin condensation and an increase in the population of sub-G1 hypodiploid cells, were observed. With respect to the mechanism underlying the induction of apoptosis, fucoidan reduced Bcl-2 expression, but the expression of Bax was increased in a dose-dependent manner compared with the controls. Furthermore, fucoidan induced caspase-9 activation, but decreased the level of procaspase-3. Cleavage of poly-ADP-ribose polymerase (PARP), a vital substrate of effector caspase, was found. The study further investigated the role of the MAPK and PI3K/Akt pathways with respect to the apoptotic effect of fucoidan, and showed that fucoidan activates ERK1/2 in A549 cells. Unlike ERK1/2, however, treatment with fucoidan resulted in the down-regulation of phospho-p38 expression. In addition, fucoidan resulted in the down-regulation of phospho-PI3K/Akt. Together, these results indicate that fucoidan induces apoptosis of A549 human lung cancer cells through down-regulation of p38, PI3K/Akt, and the activation of the ERK1/2 MAPK pathway.
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Affiliation(s)
- Hye-Jin Boo
- School of Medicine, Institute of Medical Sciences, Jeju National University, 66 Jejudaehakno, Jeju 690-756, South Korea
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Kim MK, Kim SC, Kang JI, Hyun JH, Boo HJ, Eun SY, Park DB, Yoo ES, Kang HK, Kang JH. 6-Hydroxydopamine-induced PC12 cell death is mediated by MEF2D down-regulation. Neurochem Res 2010; 36:223-31. [PMID: 21057871 DOI: 10.1007/s11064-010-0309-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/25/2010] [Indexed: 12/15/2022]
Abstract
Recently, it was reported that in a 4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) model, neuronal cell death is associated with the cdk5-mediated hyperphosphorylation of myocyte enhancer factor 2 (MEF2), a transcription factor that is critically required for neuronal survival. In the present study, we investigated the possible involvement of cdk5-mediated MEF2D down-regulation on 6-hydroxydopamine (6-OHDA)-induced PC12 cell death. 6-OHDA was found to significantly increase nitric oxide (NO) production and to induce apoptosis in a time-dependent manner in PC12 cells. Furthermore, 6-OHDA was found to markedly reduce MEF2D levels under conditions that could induce PC12 cell apoptosis. In addition, PC12 cell death and MEF2D degradation by 6-OHDA were prevented by the cdk5 inhibitor roscovitine, but roscovitine could not restore the 6-OHDA-induced inactivation of Akt. These results suggest that the cell death and MEF2D degradation caused by 6-OHDA are dependent on cdk5 activity. On the other hand, roscovitine enhanced the 6-OHDA-induced activations of ERK1/2 and JNK, but reduced the 6-OHDA-induced activation of p38. These results suggest that PC12 cell death by 6-OHDA appears to be regulated by the down-regulation of MEF2D via some interaction between cdk5 and MAP kinase.
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Affiliation(s)
- Min-Kyoung Kim
- Department of Pharmacology, School of Medicine, Institute of Medical Sciences, Jeju National University, Jeju, South Korea
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Kim MK, Kim SC, Kang JI, Boo HJ, Hyun JW, Koh YS, Park DB, Yoo ES, Kang JH, Kang HK. Neuroprotective Effects of Carpinus tschonoskii MAX on 6-Hydroxydopamine-Induced Death of PC12 Cells. Biomol Ther (Seoul) 2010. [DOI: 10.4062/biomolther.2010.18.4.454] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Hyun JH, Kim SC, Kang JI, Kim MK, Boo HJ, Kwon JM, Koh YS, Hyun JW, Park DB, Yoo ES, Kang HK. Apoptosis inducing activity of fucoidan in HCT-15 colon carcinoma cells. Biol Pharm Bull 2009; 32:1760-4. [PMID: 19801840 DOI: 10.1248/bpb.32.1760] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The antitumor activity of fucoidan from Fucus vesiculosus was investigated in human colon carcinoma cells. The crude fucoidan, a polysaccharide composed predominantly of sulfated fucose, markedly inhibited the growth of HCT-15 cells (human colon carcinoma cells). After HCT-15 cells were treated with fucoidan, several apoptotic events such as DNA fragmentation, chromatin condensation and increase of the population of sub-G1 hypodiploid cells were observed. In the mechanism of fucoidan-induced apoptosis, we examined changes in Bcl-2 and Bax protein expression levels and activation of caspases. Fucoidan decreased Bcl-2 expression, whereas the expression of Bax was increased in a time-dependent manner compared to the control. In addition, the active forms of caspase-9 and caspase-3 were increased, and the cleavage of poly(ADP-ribose) polymerase (PARP), a vital substrate of effector caspase, was observed. Furthermore, the induction of apoptosis was also accompanied by a strong activation of extracellular signal-regulated kinase (ERK) and p38 kinase and an inactivation of phosphatidylinositol 3-kinase (PI3K)/Akt in a time-dependent manner. These findings provide evidence demonstrating that the pro-apoptotic effect of fucoidan is mediated through the activation of ERK, p38 and the blocking of the PI3K/Akt signal pathway in HCT-15 cells. These data support the hypothesis that fucoidan may have potential in colon cancer treatment.
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Affiliation(s)
- Jae-Hee Hyun
- School of Medicine, Institute of Medical Sciences, Jeju National University, South Kore
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Huh S, Lee J, Jung E, Kim SC, Kang JI, Lee J, Kim YW, Sung YK, Kang HK, Park D. A cell-based system for screening hair growth-promoting agents. Arch Dermatol Res 2009; 301:381-5. [PMID: 19277688 DOI: 10.1007/s00403-009-0931-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2008] [Revised: 12/12/2008] [Accepted: 02/05/2009] [Indexed: 11/28/2022]
Abstract
Androgen-inducible transforming growth factor beta (TGF-beta1) derived from dermal papilla cells (DPCs) is a catagen inducer that mediates hair growth suppression in androgenetic alopecia (AGA). In this study, a cell-based assay system was developed to monitor TGF-beta1 promoter activity and then used to evaluate the effects of activated TGF-beta1 promoter in human epidermal keratinocytes (HaCaT). To accomplish this, a pMetLuc-TGF-beta1 promoter plasmid that expresses the luciferase reporter gene in response to TGF-beta1 promoter activity was constructed. Treatment of HaCaT with dihydrotestosterone, which is known to be a primary factor of AGA, resulted in a concentration-dependent increase in TGF-beta1 promoter activity. However, treatment of HaCaT with the TGF-beta1 inhibitor, curcumin, resulted in a concentration-dependant decrease in TGF-beta1 expression. Subsequent use of this assay system to screen TGF-beta1 revealed that HaCaT that were treated with apigenin showed decreased levels of TGF-beta1 expression. In addition, treatment with apigenin also significantly increased the proliferation of both SV40T-DPCs (human DPCs) and HaCaT cells. Furthermore, apigenin stimulated the elongation of hair follicles in a rat vibrissa hair follicle organ culture. Taken together, these findings suggest that apigenin, which is known to have antioxidant, anti-inflammatory, and anti-tumor properties, stimulates hair growth through downregulation of the TGF-beta1 gene. In addition, these results suggest that this assay system could be used to quantitatively measure TGF-beta1 promoter activity in HaCaT, thereby facilitating the screening of agents promoting hair growth.
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Affiliation(s)
- Sungran Huh
- Biospectrum Life Science Institute, 101-701 SK Ventium, 522 Dangjung Dong, Gunpo City, 435-833 Gyeonggi-do, Republic of Korea
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Hyun JH, Kang JI, Kim SC, Kim E, Kang JH, Kwon JM, Park DB, Lee YJ, Yoo ES, Kang HK. The Effects of Crinum asiaticum on the Apoptosis Induction and the Reversal of Multidrug Resistance in HL-60/MX2. Toxicol Res 2008; 24:29-36. [PMID: 32038774 PMCID: PMC7006299 DOI: 10.5487/tr.2008.24.1.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2007] [Accepted: 01/18/2008] [Indexed: 12/20/2022] Open
Abstract
The present study investigated the anti-proliferative and chemosensitizing effects of Crinum asiaticum var. japonicum against multi-drug resistant (MDR) cancer cells. The 80% methanol extract, chloroform (CHCI3) fraction and butanol (BuOH) fraction of C asiaticum inhibited the growth of mitoxantrone (MX) resistant HL-60 (HL-60/MX2) cells. When HL-60/MX2 cells were treated with the CHCI3 and BuOH fractions, DNA ladder and sub-G1 hypodiploid cells were observed. Furthermore, the fractions reduced Bcl-2 mRNA levels, whereas Bax mRNA levels were increased. These results suggest that the inhibitory effect of C. asiaticum on the growth of the HL-60/MX2 cells might arise from the induction of apoptosis. Treatment of HL-60/MX2 cells with the fractions markedly decreased the mRNA levels of the multi-drug resistance protein-1 and breast cancer resistance protein. The CHCI3 fraction and hexane fraction increased MX accumulation in HL-60/MX2 cells. These results imply that the CHCI3 fraction of C asiaticum plays a pivotal role as a chemosensitizer. We suggest that components of C asiaticum might have a therapeutic potential for the treatment of MDR leukemia.
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Affiliation(s)
- Jae-Hee Hyun
- 15Department of Medicine, College of Medicine, Cheju National University, 66 Jejudaehakno, Jeju, 690-756 Korea
| | - Jung-Il Kang
- 15Department of Medicine, College of Medicine, Cheju National University, 66 Jejudaehakno, Jeju, 690-756 Korea
| | - Sang-Cheol Kim
- 15Department of Medicine, College of Medicine, Cheju National University, 66 Jejudaehakno, Jeju, 690-756 Korea
| | - Elvira Kim
- 15Department of Medicine, College of Medicine, Cheju National University, 66 Jejudaehakno, Jeju, 690-756 Korea
| | - Ji-Hoon Kang
- 15Department of Medicine, College of Medicine, Cheju National University, 66 Jejudaehakno, Jeju, 690-756 Korea
| | - Jung-Mi Kwon
- 15Department of Medicine, College of Medicine, Cheju National University, 66 Jejudaehakno, Jeju, 690-756 Korea
| | - Doek-Bae Park
- 15Department of Medicine, College of Medicine, Cheju National University, 66 Jejudaehakno, Jeju, 690-756 Korea
| | - Young-Jae Lee
- 25Department of Veterinary Medicine, College of Applied Life Science, Cheju National University, Jeju, 690-756 Korea
| | - Eun-Sook Yoo
- 15Department of Medicine, College of Medicine, Cheju National University, 66 Jejudaehakno, Jeju, 690-756 Korea
| | - Hee-Kyoung Kang
- 15Department of Medicine, College of Medicine, Cheju National University, 66 Jejudaehakno, Jeju, 690-756 Korea
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Kim JH, Ha HC, Lee MS, Kang JI, Kim HS, Lee SY, Pyun KH, Shim I. Effect of Tremella fuciformis on the neurite outgrowth of PC12h cells and the improvement of memory in rats. Biol Pharm Bull 2007; 30:708-14. [PMID: 17409507 DOI: 10.1248/bpb.30.708] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We investigated the neuritogenic effects of Tremella fuciformis (TF), which has been valued in traditional Chinese medicine as a remedy with nutritive and tonic actions, on PC12h cells. The cognitive improving effects of TF on scopolamine-induced (2 mg/kg, s.c.) amnesia in rats were also evaluated with using the Morris water maze task and by performing choline acetyltransferase (ChAT) immunohistochemistry. The water extract of TF (0.01-1 microg/ml) promoted neurite outgrowth of the PC12h cells in a dose dependent manner. TF was highly efficient at the concentration range of 0.1-1 microg/ml. Oral daily treatment with TF (100 or 400 mg/kg) for 14 consecutive days significantly reversed the scopolamine-induced deficit in learning and memory, and it alleviated decrease in cholinergic immunoreactivity induced by scopolamine in the medial septum and hippocampus. The results demonstrate that the promotion of neuritogenesis in neuronal culture cells by TF water extract is related with its activity for improving the performance of rats on a spatial learning and memory task. Moreover, the impairments of spatial learning and memory may be attributable to the decrease in activation of the septohippocampal cholinergic system and that TF ameliorated learning and memory deficits partly through its increasing the central cholinergic activity. Therefore, TF could represent a potentially useful agent that is able to improve the function of impaired cognitive processes.
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Affiliation(s)
- Ji Hyun Kim
- Department of Integrative Medicine, Immunology and Cell Biology Core Lab, College of Medicine, The Catholic University of Korea, Korea
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29
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Kang JI, Lee YS, Ahn K, Song JW, Song KJ, Baek LJ, Lee PW, Ahn BY. A dominant antigenic region of the hantaan virus nucleocapsid protein is located within a amino-terminal short stretch of hydrophilic residues. Virus Genes 2002; 23:183-6. [PMID: 11724272 DOI: 10.1023/a:1011896223601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The nucleocapsid (N) protein of the Hantaan virus (HTNV) is a major viral antigen that induces a strong antibody response during the acute phase of infection. By immunoblot analyses of the recombinant N proteins using human sera of the hemorrhagic fever with renal syndrome (HFRS), we have confirmed previous finding by other investigators of the presence of a highly antigenic region near the amino terminus of the HTNV N protein. We have further located the antigenic region within a short stretch of hydrophilic sequences between the 26 and the 46th amino acid residues. The recombinant glutathione S-transferase fusion proteins containing this region was expressed as a soluble form in a large quantity in Escherichia coli, and purified by a single-step affinity chromatography. The recombinant antigen also showed a similar, but a weaker reactivity with human antisera to Seoul virus (SEOV), the virus most closely related to HTNV.
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Affiliation(s)
- J I Kang
- Graduate School of Life Science and Biotechnology, Korea University, Seoul
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30
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Bellinger DL, Brouxhon SM, Lubahn C, Tran L, Kang JI, Felten DL, Lorton D. Strain differences in the expression of corticotropin-releasing hormone immunoreactivity in nerves that supply the spleen and thymus. Neuroimmunomodulation 2001; 9:78-87. [PMID: 11549889 DOI: 10.1159/000049010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The existence of nerve fibers containing corticotropin-releasing hormone (CRH) immunoreactivity in primary and secondary lymphoid organs from three strains of young adult male rats was examined. Spleens and thymuses from Fischer 344 (F344), Sprague-Dawley (SD) and Lewis (LEW) rats were prepared for immunocytochemistry using antisera directed against CRH. In F344 and SD rats, we were unable to demonstrate CRH-immunoreactive nerves in either the thymus or the spleen. Despite the lack of CRH-containing nerves, CRH immunoreactivity was present in pleotropic cells in the septum, cortex and medulla of the thymus, and in the red and white pulp of spleens from F344 and SD rats. In contrast, CRH+ nerves were found in thymuses and spleens from LEW rats. CRH+ nerves coursed in the interlobular septa, capsule, cortex and medulla of the LEW rat thymus. Large CRH-immunoreactive nerve bundles were present in the hilar region of the LEW rat spleen, and individual CRH+ fibers coursed in the capsule, trabeculae, red pulp, venous sinuses and marginal zone of the white pulp of the spleen. These findings indicate strain differences in neurotransmitter-specific nerves that innervate the rat spleen and thymus under basal conditions.
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Affiliation(s)
- D L Bellinger
- Center for Neuroimmunology, Loma Linda University School of Medicine, Loma Linda, Calif., USA.
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31
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Abstract
Hantaviruses replicate in primary and cultured animal cells with little or no cytopathic effect. We report here that the cultured Vero E6 cells infected by the Hantaan or by the Prospect Hill viruses exhibited characteristic features of apoptosis, including condensation and segmentation of nuclei and internucleosomal cleavage of nuclear DNA. Apoptosis was not seen in the cells adsorbed by UV-inactivated virus, indicating that the viral replication is required for the induction of apoptosis. Furthermore, level of the proto-oncogenic Bcl-2 protein was significantly reduced, whereas its mRNA level remained unchanged in Hantaan virus-infected cells, suggesting possible involvement and posttranscriptional regulation of this antiapoptotic protein in the process.
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Affiliation(s)
- J I Kang
- Graduate School of Biotechnology, Korea University, Seoul, 136-701, Korea
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