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Abe J, Aono Y, Hirai Y. The decline in cellular iron is crucial for differentiation in keratinocytes. Metallomics 2024; 16:mfae014. [PMID: 38449344 DOI: 10.1093/mtomcs/mfae014] [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: 01/10/2024] [Accepted: 03/05/2024] [Indexed: 03/08/2024]
Abstract
Iron is a vital metal for most biological functions in tissues, and its concentration is exquisitely regulated at the cellular level. During the process of differentiation, keratinocytes in the epidermis undergo a noticeable reduction in iron content. Conversely, psoriatic lesions, characterized by disruptions in epidermal differentiation, frequently reveal an excessive accumulation of iron within keratinocytes that have undergone differentiation. In this study, we clarified the significance of attenuated cellular iron content in the intricate course of epidermal differentiation. We illustrated this phenomenon through the utilization of hinokitiol, an iron chelator derived from the heartwood of Taiwanese hinoki, which forcibly delivers iron into cells independent of the intrinsic iron-regulation systems. While primary cultured keratinocytes readily succumbed to necrotic cell death by this iron chelator, mild administration of the hinokitiol-iron complex modestly disrupts the process of differentiation in these cells. Notably, keratinocyte model cells HaCaT and anaplastic skin rudiments exhibit remarkable resilience against the cytotoxic impact of hinokitiol, and the potent artificial influx of iron explains a suppressive effect selectively on epidermal differentiation. Moreover, the augmentation of iron content induced by the overexpression of divalent metal transporter 1 culminates in the inhibition of differentiation in HaCaT cells. Consequently, the diminution in cellular iron content emerges as an important determinant influencing the trajectory of keratinocyte differentiation.
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Affiliation(s)
- Junya Abe
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University. 1, Gakuen-Uegahara, Sanda 669-1330, Japan
| | - Yuichi Aono
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University. 1, Gakuen-Uegahara, Sanda 669-1330, Japan
| | - Yohei Hirai
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University. 1, Gakuen-Uegahara, Sanda 669-1330, Japan
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2
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Kobori M, Abe J, Saito R, Hirai Y. CAMSAP3, a microtubule orientation regulator, plays a vital role in manifesting differentiation-dependent characteristics in keratinocytes. Exp Cell Res 2024; 435:113927. [PMID: 38190868 DOI: 10.1016/j.yexcr.2024.113927] [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: 10/23/2023] [Revised: 01/03/2024] [Accepted: 01/05/2024] [Indexed: 01/10/2024]
Abstract
Microtubules constitute pivotal structural elements integral to cellular architecture and physiological functionality. Within the epidermis of the skin, microtubules undergo a noteworthy transition in orientation, shifting from centrosomal to non-centrosomal configurations during the processes of differentiation and stratification. This transition aligns with a discernible increase in the expression of CAMSAP3, a protein that binds to the minus end of microtubules, thereby regulating their orientation. In this study, we identified microtubule-bound CAMSAP3 within HaCaT keratinocytes, revealing an upregulation during the mitotic phase and accumulation at the intercellular bridge during cytokinesis. Building upon this observation, we scrutinized cellular responses upon a tetracycline/doxycycline-inducible CAMSAP3 expression in CAMSAP3-deficient HaCaT cells. Remarkably, CAMSAP3 deficiency induced shifts in microtubule orientation, resulting in cell cycle exit and delayed cytokinesis in a subset of the cells. Furthermore, our inquiry unveiled that CAMSAP3 deficiency adversely impacted the formation and stability of Adherens Junctions and Tight Junctions. In contrast, these perturbations were rectified upon the re-expression of CAMSAP3, underscoring the pivotal role of CAMSAP3 in manifesting differentiation-dependent characteristics in stratified keratinocytes. These observations emphasize the significance of CAMSAP3 in maintaining epidermal homeostasis.
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Affiliation(s)
- Mako Kobori
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, Gakuen-Uegahara, Sanda, 669-1330, Japan
| | - Junya Abe
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, Gakuen-Uegahara, Sanda, 669-1330, Japan
| | - Reika Saito
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, Gakuen-Uegahara, Sanda, 669-1330, Japan
| | - Yohei Hirai
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, Gakuen-Uegahara, Sanda, 669-1330, Japan.
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Nozaki S, Hirai Y. A crucial stem cell plasticity regulation pathway: identification of key elements using the NCCIT human embryonic carcinoma cell line. J Biochem 2023; 174:501-510. [PMID: 37552559 DOI: 10.1093/jb/mvad063] [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: 04/10/2023] [Revised: 07/18/2023] [Accepted: 08/01/2023] [Indexed: 08/10/2023] Open
Abstract
Upon removal of stemness factors, a small subpopulation of embryonic stem cells (ESCs) spontaneously extrudes the t-SNARE protein syntaxin-4, which upregulates the cell adhesion molecule P-cadherin and induces the onset of epithelial-mesenchymal transition (EMT)-like behaviors with loss of stemness in each cell. In this study, we identified a series of molecular elements responsible for this phenomenon using several small-molecule inhibitors and the human embryonic carcinoma cell line, NCCIT. We found that the syntaxin-4-triggered morphological changes and a decrease in stemness signatures were independently induced by the activation of Rho-associated kinase (ROCK) and the abrogation of PI3K/Akt signaling. We also found that the extracellular expression of syntaxin-4 inactivated focal adhesion kinase (FAK) in association with the augmented expression of P-cadherin, and comparable controls of either of these downstream elements of syntaxin-4 accelerated both ROCK-induced F-actin stress fiber formation and P13K/Akt-suppressed loss of stemness signatures. Cells expressing P-cadherin inactivated FAK but FAK inhibition did not affect P-cadherin expression, demonstrating a causal relationship between P-cadherin and FAK in the event of syntaxin-4 induction. These results reveal a novel signaling axis in stem cells and shed new light on the crucial elements for stem cell plasticity and the maintenance of stemness.
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Affiliation(s)
- Sae Nozaki
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, Gakuen-Uegahara, Sanda 669-1330, Japan
| | - Yohei Hirai
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, Gakuen-Uegahara, Sanda 669-1330, Japan
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Hayashi K, Nozaki S, Tokushima K, Tanaka F, Hirai Y. Role of syntaxin3 an apical polarity protein in poorly polarized keratinocytes: regulation of asymmetric barrier formations in the skin epidermis. Cell Tissue Res 2023; 393:523-535. [PMID: 37351635 DOI: 10.1007/s00441-023-03798-y] [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: 01/09/2023] [Accepted: 06/13/2023] [Indexed: 06/24/2023]
Abstract
The skin epidermis exhibits an asymmetric structure composed of multilayered keratinocytes and those in the outer layers form two-way physical barriers, cornified cell envelope (CCE), and tight junctions (TJs). While undifferentiated keratinocytes in the basal layer continuously deliver daughter cells outward, which undergo successive differentiation with losing their polarized characteristics, they retain the expression of several polarity proteins. In the present study, we revealed that the t-SNARE protein syntaxin3, a critical element for the formation of the apical compartment in simple epithelial cells, is required to confer the ability to organize the physical barriers on "poorly polarized" keratinocytes in epidermal outer layers. HaCaT keratinocytes with genetic ablation of syntaxin3 readily succumbed to hydrogen peroxide-induced cell death. Additionally, they lost the ability to organize TJ and CCE structures, accompanied by notable downregulation of transglutaminase1 and caspase14 (a cornification regulator) expression. These syntaxin3-knockout cells appeared to restore oxidative stress tolerance and functional TJ formation ability, in response to the inducible re-expression of exogenous syntaxin3. While plausible mechanisms underlying these phenomena remain unclear, syntaxin3, an apical polarity protein in the simple epithelia, has emerged as a potentially crucial element for barrier formation in poorly polarized keratinocytes in polarized epidermal tissue.
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Affiliation(s)
- Kaho Hayashi
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, Gakuen-Uegahara, Sanda, 669-1330, Japan
| | - Sae Nozaki
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, Gakuen-Uegahara, Sanda, 669-1330, Japan
| | - Kanako Tokushima
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, Gakuen-Uegahara, Sanda, 669-1330, Japan
| | - Fumika Tanaka
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, Gakuen-Uegahara, Sanda, 669-1330, Japan
| | - Yohei Hirai
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, Gakuen-Uegahara, Sanda, 669-1330, Japan.
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Matsuguchi S, Hirai Y. Syntaxin4, P-cadherin, and CCAAT enhancer binding protein β as signaling elements in the novel differentiation pathway for cultured embryonic stem cells. Biochem Biophys Res Commun 2023; 672:27-35. [PMID: 37331168 DOI: 10.1016/j.bbrc.2023.06.039] [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: 05/02/2023] [Revised: 05/15/2023] [Accepted: 06/13/2023] [Indexed: 06/20/2023]
Abstract
Pluripotent stem cells possess the potential to differentiate into all three germ layers. However, upon removal of the stemness factors, pluripotent stem cells, such as embryonic stem cells (ESCs), exhibit EMT-like cell behavior and lose stemness signatures. This process involves the membrane translocation of the t-SNARE protein syntaxin4 (Stx4) and the expression of the intercellular adhesion molecule P-cadherin. The forced expression of either of these elements induces the emergence of such phenotypes even in the presence of stemness factors. Interestingly, extracellular Stx4, but not P-cadherin, appears to induce a significant upregulation of the gastrulation-related gene brachyury, along with a slight upregulation of the smooth muscle cell-related gene ACTA2 in ESCs. Furthermore, our findings reveal that extracellular Stx4 plays a role in preventing the elimination of CCAAT enhancer binding protein β (C/EBPβ). Notably, the forced overexpression of C/EBPβ led to the downregulation of brachyury and a significant upregulation of ACTA2 in ESCs. These observations suggest that extracellular Stx4 contributes to early mesoderm induction while simultaneously activating an element that alters the differentiation state. The fact that a single differentiation cue can elicit multiple differentiation responses may reflect the challenges associated with achieving sensitive and directed differentiation in cultured stem cells.
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Affiliation(s)
- Shuji Matsuguchi
- Department of Biomedical Sciences, School of Biological and Environmental Sciences, Kwansei Gakuin University, 1 Gakuen-Uegahara, Sanda, 669-1330, Japan.
| | - Yohei Hirai
- Department of Biomedical Sciences, School of Biological and Environmental Sciences, Kwansei Gakuin University, 1 Gakuen-Uegahara, Sanda, 669-1330, Japan.
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Hori H, Kotani A, Abe J, Matsuguchi S, Hirai Y. Extracellular epimorphin impairs expression and processing of profilaggrin in HaCaT keratinocytes. Cytotechnology 2023; 75:123-133. [PMID: 36969570 PMCID: PMC10030722 DOI: 10.1007/s10616-022-00566-8] [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: 06/03/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022] Open
Abstract
The expression and processing of filaggrin, a filament-associated protein in the skin epidermis, is closely associated with keratinocyte cornification. The large precursor profilaggrin (Pro-FLG) is initially detected at the granular layer in keratohyalin granules, subsequently processed into 10 to 12 filaggrin monomers (mFLGs) for keratin assembly, and ultimately degraded into smaller peptides that behave as natural moisturizing factor (NMF) at the outermost epidermis. We previously reported that epimorphin (EPM) extruded upon external stimuli severely perturbs epidermal terminal differentiation. Using HaCaT keratinocytes with inducible expression and recombinant EPM and FLG, we investigated the effect of extracellular EPM on the expression profile of filaggrin. As expression and processing of Pro-FLG in primary keratinocytes are accompanied with apoptotic cell death, we employed HaCaT keratinocytes that grow and express filaggrin mRNA in standard culture medium. In response to ectopic stimulation with extracellular EPM, Pro-FLG expression decreased with elimination of keratohyalin granules in the cells, with filaggrin mRNA remained constant and profilaggrin processing was not accelerated. Additionally, using a recombinant form of mFLG engineered for intracellular localization, we found that extracellular EPM hindered proteolytic cleavage of mFLG for production of NMF. Taken together, extracellularly extruded EPM, an epidermal cornification blocker, not only decreases Pro-FLG expression but also reduces the production of NMF in HaCaT keratinocytes. Supplementary Information The online version contains supplementary material available at 10.1007/s10616-022-00566-8.
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Affiliation(s)
- Haruna Hori
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, GakuenUegahara, Sanda, 669-1330 Japan
- Present Address: Oppen Cosmetics Co, LTD. 2-17-1 Kisibeminami, Suita, 565-8501 Japan
| | - Ayaka Kotani
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, GakuenUegahara, Sanda, 669-1330 Japan
| | - Junya Abe
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, GakuenUegahara, Sanda, 669-1330 Japan
| | - Shuji Matsuguchi
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, GakuenUegahara, Sanda, 669-1330 Japan
| | - Yohei Hirai
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1, GakuenUegahara, Sanda, 669-1330 Japan
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Takeda Y, Matsuguchi S, Nozaki S, Mihara T, Abe J, Hirai Y. Suppression of P-cadherin expression as a key regulatory element for embryonic stem cell stemness. Cell Struct Funct 2023; 48:49-57. [PMID: 36575041 PMCID: PMC10721948 DOI: 10.1247/csf.22060] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 09/02/2022] [Accepted: 12/13/2022] [Indexed: 12/28/2022] Open
Abstract
In embryonic stem (ES) cell colonies, a small subpopulation that changes cell shape and loses pluripotency often appears in two-dimensional (2D) cultures, even in the presence of a stemness factor. We have previously shown that membrane translocation of the syntaxin4, t-SNARE protein contributes to this phenomenon. Here, we show that ES cells in three-dimensional (3D) aggregates do not succumb to extruded syntaxin4 owing to suppressed expression of P-cadherin protein. While extracellular expression of syntaxin4 led to the striking upregulation of P-cadherin mRNA in both 2D and 3D-ES cells, morphological changes and appreciable expression of P-cadherin protein were detected only in 2D-ES cells. Importantly, the introduction of an expression cassette for P-cadherin practically reproduced the effects induced by extracellular syntaxin4, where the transgene product was clearly detected in 2D-, but not 3D-ES cells. An expression construct for P-cadherin-Venus harboring an in-frame insertion of the P2A sequence at the joint region gave fluorescent signals only in the cytoplasm of 2D-ES cells, demonstrating translational regulation of P-cadherin. These results provide the mechanistic insight into the uncontrollable differentiation in 2D-ES cells and shed light on the validity of the "embryoid body protocol commonly used for ES cell handling" for directional differentiation.Key words: differentiation, embryoid body, ES cells, P-cadherin, syntaxin4.
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Affiliation(s)
- Yuka Takeda
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1 Gakuen Uegahara, Sanda, 669-1330, Japan
| | - Shuji Matsuguchi
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1 Gakuen Uegahara, Sanda, 669-1330, Japan
| | - Sae Nozaki
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1 Gakuen Uegahara, Sanda, 669-1330, Japan
| | - Taisei Mihara
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1 Gakuen Uegahara, Sanda, 669-1330, Japan
| | - Junya Abe
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1 Gakuen Uegahara, Sanda, 669-1330, Japan
| | - Yohei Hirai
- Department of Biomedical Sciences, Graduate School of Science and Technology, Kwansei Gakuin University, 1 Gakuen Uegahara, Sanda, 669-1330, Japan
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Hirai Y, Iguchi H, Fusamoto A, Yata Y, Ohashi T, Nishimura Y. EP02.03-017 Novel Intraoperative CT-Guided Marking Using O-Arm in Video-Assisted Thoracoscopic Surgery. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Hirose Y, Hirai Y. Cooperation of membrane-translocated syntaxin4 and basement membrane for dynamic mammary epithelial morphogenesis. J Cell Sci 2021; 134:273506. [PMID: 34676419 DOI: 10.1242/jcs.258905] [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: 05/13/2021] [Accepted: 10/18/2021] [Indexed: 11/20/2022] Open
Abstract
Mammary epithelia undergo dramatic morphogenesis after puberty. During pregnancy, luminal epithelial cells in ductal trees are arranged to form well-polarized cystic structures surrounded by a myoepithelial cell layer, an active supplier of the basement membrane (BM). Here, we identified a novel regulatory mechanism involved in this process by using a reconstituted BM-based three-dimensional culture and aggregates of a model mouse cell line, EpH4, that had either been manipulated for inducible expression of the t-SNARE protein syntaxin4 in intact or signal peptide-connected forms, or that were genetically deficient in syntaxin4. We found that cells extruded syntaxin4 upon stimulation with the lactogenic hormone prolactin, which in turn accelerated the turnover of E-cadherin. In response to extracellular expression of syntaxin4, cell populations that were less affected by the BM actively migrated and integrated into the cell layer facing the BM. Concurrently, the BM-facing cells, which were simultaneously stimulated with syntaxin4 and BM, acquired unique epithelial characteristics to undergo dramatic cellular arrangement for cyst formation. These results highlight the importance of the concerted action of extracellular syntaxin4 extruded in response to the lactogenic hormone and BM components in epithelial morphogenesis.
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Affiliation(s)
- Yuina Hirose
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, 2-1, Gakuen, Sanda 669-1337, Japan
| | - Yohei Hirai
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, 2-1, Gakuen, Sanda 669-1337, Japan.,Department of Biomedical Sciences, Graduate School of Biological and Environmental Sciences, Kwansei Gakuin University, 2-1, Gakuen, Sanda 669-1337, Japan
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Abstract
Mammary epithelia undergo dramatic morphogenesis after puberty. During pregnancy, luminal epithelial cells in ductal trees are arranged to form well-polarized cystic structures surrounded by a myoepithelial cell layer, an active supplier of the basement membrane (BM). Here, we identified a novel regulatory mechanism involved in this process by using a reconstituted BM-based three-dimensional culture and aggregates of a model mouse cell line, EpH4, that had either been manipulated for inducible expression of the t-SNARE protein syntaxin4 in intact or signal peptide-connected forms, or that were genetically deficient in syntaxin4. We found that cells extruded syntaxin4 upon stimulation with the lactogenic hormone prolactin, which in turn accelerated the turnover of E-cadherin. In response to extracellular expression of syntaxin4, cell populations that were less affected by the BM actively migrated and integrated into the cell layer facing the BM. Concurrently, the BM-facing cells, which were simultaneously stimulated with syntaxin4 and BM, acquired unique epithelial characteristics to undergo dramatic cellular arrangement for cyst formation. These results highlight the importance of the concerted action of extracellular syntaxin4 extruded in response to the lactogenic hormone and BM components in epithelial morphogenesis.
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Affiliation(s)
- Yuina Hirose
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, 2-1, Gakuen, Sanda 669-1337, Japan
| | - Yohei Hirai
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, 2-1, Gakuen, Sanda 669-1337, Japan.,Department of Biomedical Sciences, Graduate School of Biological and Environmental Sciences, Kwansei Gakuin University, 2-1, Gakuen, Sanda 669-1337, Japan
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Yamada M, Hirai Y, Inoue D, Komatsu S, Uchida T, Kojima T, Tomiyasu T, Yoshikawa N, Oda T. Increased expression of epimorphin in a peritoneal fibrosis mouse model. Perit Dial Int 2021; 42:522-529. [PMID: 34641723 DOI: 10.1177/08968608211051572] [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] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Long-term peritoneal dialysis results in functional and histopathological alterations of the peritoneal membrane, leading to peritoneal fibrosis (PF). The mechanism of PF has not been fully elucidated, and at present there is no effective therapy for PF. Epimorphin is a mesenchymal protein that not only regulates morphogenesis in organ development but is implicated in tissue repair. However, the role of epimorphin in PF has not yet been clarified. METHODS PF was induced in C57/Bl6 mice by intraperitoneal injection of chlorhexidine gluconate (CG-injected mice) three times a week for 3 weeks. The parietal peritoneum was subsequently dissected and assessed by Masson's trichrome staining, and epimorphin expression was analysed by immunohistochemistry and real-time reverse transcription polymerase chain reaction (RT-PCR). Furthermore, epimorphin-positive regions were analysed by multiple immunofluorescence staining using fibrosis-associated markers. In addition, normal rat fibroblast cells (NRK-49F) were treated with transforming growth factor-β (TGF-β) in the presence or absence of epimorphin. The expression of fibrosis-associated markers was assessed by real-time RT-PCR. RESULTS In CG-injected mice, Masson's trichrome staining showed marked thickening of the submesothelial compact zone. Weak epimorphin expression was observed in the narrow submesothelial compact zone beneath the mesothelial cells in control mice; however, epimorphin expression was stronger in the submesothelial compact zone in CG-injected mice. Epimorphin expression was observed mainly in α-smooth muscle actin (α-SMA)-positive myofibroblasts. Epimorphin suppressed the TGF-β-induced upregulation of α-SMA and platelet-derived growth factor receptor-β in cultured cells. CONCLUSIONS Our results suggest that epimorphin may be a therapeutic target for fibrotic diseases of the peritoneum.
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Affiliation(s)
- Muneharu Yamada
- Department of Nephrology and Blood Purification, Kidney Disease Center, Tokyo Medical University Hachioji Medical Center, Hachioji, Tokyo, Japan
| | - Yohei Hirai
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo, Japan
| | - Dan Inoue
- Department of Nephrology and Blood Purification, Kidney Disease Center, Tokyo Medical University Hachioji Medical Center, Hachioji, Tokyo, Japan
| | - Shuhei Komatsu
- Department of Nephrology and Blood Purification, Kidney Disease Center, Tokyo Medical University Hachioji Medical Center, Hachioji, Tokyo, Japan
| | - Takahiro Uchida
- Department of Nephrology and Blood Purification, Kidney Disease Center, Tokyo Medical University Hachioji Medical Center, Hachioji, Tokyo, Japan
| | - Tadasu Kojima
- Department of Nephrology and Blood Purification, Kidney Disease Center, Tokyo Medical University Hachioji Medical Center, Hachioji, Tokyo, Japan
| | - Tomohiro Tomiyasu
- Department of Nephrology and Blood Purification, Kidney Disease Center, Tokyo Medical University Hachioji Medical Center, Hachioji, Tokyo, Japan
| | - Noriko Yoshikawa
- Department of Nephrology and Blood Purification, Kidney Disease Center, Tokyo Medical University Hachioji Medical Center, Hachioji, Tokyo, Japan
| | - Takashi Oda
- Department of Nephrology and Blood Purification, Kidney Disease Center, Tokyo Medical University Hachioji Medical Center, Hachioji, Tokyo, Japan
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Yamaguchi T, Makiguchi T, Nakamura H, Yamatsu Y, Hirai Y, Shoda K, Suzuki K, Kim M, Kurozumi S, Motegi SI, Shirabe K, Yokoo S. Impact of muscle volume loss on acute oral mucositis in patients undergoing concurrent chemoradiotherapy after oral cancer resection. Int J Oral Maxillofac Surg 2021; 50:1195-1202. [PMID: 33414037 DOI: 10.1016/j.ijom.2020.12.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 09/25/2020] [Accepted: 12/07/2020] [Indexed: 12/14/2022]
Abstract
This study evaluated the association between skeletal muscle mass depletion and severe oral mucositis in patients undergoing concurrent chemoradiotherapy after oral cancer resection. Skeletal muscle mass was evaluated in 60 patients using the skeletal muscle index, which was based on skeletal muscle cross-sectional area (on computed tomography) at the level of the third lumbar vertebra. In accordance with the grading criteria of the Radiation Therapy Oncology Group, patients with a grade ≥3 were defined as having severe oral mucositis. Multivariate logistic regression analysis was used to evaluate independent risk factors for severe oral mucositis. Eleven patients (18.3%) were diagnosed with low skeletal muscle mass. Severe oral mucositis occurred in 17 (28.3%) patients, and the mean skeletal muscle index was 42.8 cm2/m2. A low skeletal muscle mass (hazard ratio 18.1; P=0.001) and a chemotherapy regimen consisting of 5-fluorouracil and cisplatin (versus cisplatin only) (hazard ratio 5.5; P=0.015) were independent risk factors for severe oral mucositis. Future prospective studies are warranted to identify effective pre- and perioperative exercises and nutrition programmes to increase low skeletal muscle mass and reduce the incidence of severe oral mucositis in patients undergoing concurrent chemoradiotherapy after oral cancer resection.
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Affiliation(s)
- T Yamaguchi
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - T Makiguchi
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
| | - H Nakamura
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Y Yamatsu
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Y Hirai
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - K Shoda
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - K Suzuki
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - M Kim
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - S Kurozumi
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - S I Motegi
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - K Shirabe
- Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - S Yokoo
- Department of Oral and Maxillofacial Surgery, and Plastic Surgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
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Tanaka F, Uda M, Hirose Y, Hirai Y. Restoration of calcium-induced differentiation potential and tight junction formation in HaCaT keratinocytes by functional attenuation of overexpressed high mobility group box-1 protein. Cytotechnology 2020; 72:165-174. [PMID: 31916113 DOI: 10.1007/s10616-019-00367-6] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/30/2019] [Indexed: 12/15/2022] Open
Abstract
HaCaT cells have been widely used as undifferentiated epidermal keratinocytes, since these non-tumorigenic cells can be readily maintained in conventional medium and partly retain epidermal differentiation potential upon stimulation with high concentration of calcium. In contrast to primary epidermal keratinocytes, however, these cells never form tight junction (TJ), a specific structure in highly differentiated keratinocytes, solely by the differentiation stimulation. Here, we show that HaCaT cells secrete a considerable amount of high mobility group box-1 protein (HMGB1), one of major inflammatory mediator, which appeared to be responsible, at least in part, for such aberrant differentiation response. So far, inhibition of c-Jun N-terminal kinase (JNK) in high calcium medium has been supposed to be the only way to induce TJ formations in HaCaT cells; however, SP600125, a potent inhibitor of JNK showed cytostatic effects and clearly attenuated epidermal differentiation and stratification. In contrast, dipotassium glycyrrhizate (GK2), a soluble analogue of HMGB1-blocker Glycyrrhizin, down-regulated interferon-β, a typical inflammatory cytokine induced by secreted HMGB1, and accelerated differentiation responses to the calcium treatment in these cells. In addition, GK2-treatmenrt resulted in the formation of double cell layers in cultured HaCaT cells, where the stratified upper cells transiently accumulated TJ proteins at the cell-cell contact sites. These results highlight the importance of attenuation of secreted HMGB1-signals in cultured HaCaT cells for studies of functional keratinocytes.
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Affiliation(s)
- Fumika Tanaka
- Department of Biomedical Chemistry, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan
| | - Minori Uda
- Department of Biomedical Chemistry, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan
| | - Yuina Hirose
- Department of Biomedical Chemistry, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan
| | - Yohei Hirai
- Department of Biomedical Chemistry, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan.
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Numakawa T, Odaka H, Adachi N, Chiba S, Ooshima Y, Matsuno H, Nakajima S, Yoshimura A, Fumimoto K, Hirai Y, Kunugi H. Basic fibroblast growth factor increased glucocorticoid receptors in cortical neurons through MAP kinase pathway. Neurochem Int 2018; 118:217-224. [PMID: 29958871 DOI: 10.1016/j.neuint.2018.06.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 05/30/2018] [Accepted: 06/25/2018] [Indexed: 01/09/2023]
Abstract
Prolonged and intense stress chronically increases blood concentration of glucocorticoids, which in turn causes downregulation of glucocorticoid receptor (GR) in the central nervous system (CNS). This process has been suggested to be involved in the pathogenesis of major depressive disorder (MDD). Here, we found that basic fibroblast growth factor (bFGF) increased the expression of GR in the rat cerebral cortex and cultured cortical neurons and restored the reduced GR expression caused by glucocorticoid exposure. Among intracellular signaling pathways stimulated by bFGF, extracellular signal-regulated kinase/mitogen-activated protein kinase (ERK/MAPK) pathway was responsible for the upregulation of GR. The bFGF-induced GR was functional as a transcription factor to enhance transcription of a target gene. Because high stress augments bFGF levels in the brain, it is likely that bFGF plays a compensating role for reduced GR expression after stress and thus should be studied as a therapeutic target for the treatment of MDD.
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Affiliation(s)
- Tadahiro Numakawa
- Department of Mental Disorder Research, National Institute of Neuroscience, NCNP, Tokyo, Japan; Department of Cell Modulation, Institute of Molecular Embryology and Genetics, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan
| | - Haruki Odaka
- Department of Mental Disorder Research, National Institute of Neuroscience, NCNP, Tokyo, Japan; Department of Cell Modulation, Institute of Molecular Embryology and Genetics, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan; Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Naoki Adachi
- Department of Mental Disorder Research, National Institute of Neuroscience, NCNP, Tokyo, Japan; Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda City, Hyogo, 669-1337, Japan.
| | - Shuichi Chiba
- Department of Mental Disorder Research, National Institute of Neuroscience, NCNP, Tokyo, Japan
| | - Yoshiko Ooshima
- Department of Mental Disorder Research, National Institute of Neuroscience, NCNP, Tokyo, Japan; Administrative Section of Radiation Protection, National Institute of Neuroscience, NCNP, Tokyo, Japan
| | - Hitomi Matsuno
- Department of Mental Disorder Research, National Institute of Neuroscience, NCNP, Tokyo, Japan
| | - Shingo Nakajima
- Department of Mental Disorder Research, National Institute of Neuroscience, NCNP, Tokyo, Japan; Endowed Research Division of Human Welfare Sciences, Ochanomizu University, Tokyo, Japan
| | - Aya Yoshimura
- Department of Mental Disorder Research, National Institute of Neuroscience, NCNP, Tokyo, Japan; Education and Research Facility of Animal Models for Human Diseases, Center for Research Promotion and Support, Fujita Health University, Aichi, Japan
| | - Kazuhiro Fumimoto
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda City, Hyogo, 669-1337, Japan
| | - Yohei Hirai
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda City, Hyogo, 669-1337, Japan
| | - Hiroshi Kunugi
- Department of Mental Disorder Research, National Institute of Neuroscience, NCNP, Tokyo, Japan
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Hirose Y, Shirai K, Hirai Y. Membrane-tethered syntaxin-4 locally abrogates E-cadherin function and activates Smad signals, contributing to asymmetric mammary epithelial morphogenesis. J Cell Biochem 2018; 119:7525-7539. [PMID: 29767852 DOI: 10.1002/jcb.27064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 04/23/2018] [Indexed: 01/09/2023]
Abstract
Spatial and temporal epithelial-mesenchymal transition (EMT) is a critical event for the generation of asymmetric epithelial architectures. We found that only restricted cell populations in the morphogenic mammary epithelia extrude syntaxin-4, a plasmalemmal t-SNARE protein, and that epithelial cell clusters with artificial heterogenic presentation of extracellular syntaxin-4 undergo asymmetric morphogenesis. A previous study revealed that inducible expression of cell surface syntaxin-4 causes EMT-like cell behaviors in the clonal mammary epithelial cells, where laminin-mediated signals were abolished so that cells readily succumb to initiate EMT. The present study added new mechanistic insight into syntaxin-4-driven EMT-like cell behaviors. Extracellular syntaxin-4 directly perturbs E-cadherin-mediated epithelial cell-cell adhesion and activates Smad signals. We found that the epithelial cells activated Smad2/3 upon induction of expression of extracellular syntaxin-4, leading to the upregulation of certain transcriptional targets of these TGF-β signaling mediators. Intriguingly, however, mRNA expression of canonical EMT initiators, such as Snail and Slug, was unchanged. In addition, E-cadherin protein was steeply decreased, yet its transcriptional expression remained constant for a couple of days. We found that extracellular syntaxin-4 directly bound to E-cadherin and sequestered β-catenin from cell-cell contact sites, perturbing intercellular adhesive property. The functional ablation of E-cadherin by syntaxin-4 was further validated by L cells with stably expressing E-cadherin, in which cells shows intercellular adhesive property solely by E-cadherin. These results underline the role of local exportation of syntaxin-4 for onset of complex epithelial morphogenesis.
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Affiliation(s)
- Yuina Hirose
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
| | - Kota Shirai
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
| | - Yohei Hirai
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
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16
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Adachi N, Suzuki S, Matsuoka H, Fushimi S, Ono J, Ohta KI, Hirai Y, Miki T, Koshimizu H. Corticotropin-releasing hormone-binding protein is up-regulated by brain-derived neurotrophic factor and is secreted in an activity-dependent manner in rat cerebral cortical neurons. J Neurochem 2018; 146:99-110. [PMID: 29355947 DOI: 10.1111/jnc.14310] [Citation(s) in RCA: 8] [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: 08/04/2017] [Revised: 12/19/2017] [Accepted: 01/09/2018] [Indexed: 12/15/2022]
Abstract
A recent study revealed that corticotropin-releasing hormone (CRH) in the cerebral cortex (CTX) plays a regulatory role in emotional behaviors in rodents. Given the functional interaction between brain-derived neurotrophic factor (BDNF) and the CRH-signaling pathway in the hypothalamic-pituitary-adrenal axis, we hypothesized that BDNF may regulate gene expression of CRH and its related molecules in the CTX. Findings of real-time quantitative PCR (RT-qPCR) indicated that stimulation of cultured rat cortical neurons with BDNF led to marked elevations in the mRNA levels of CRH and CRH-binding protein (CRH-BP). The BDNF-induced up-regulation of CRH-BP mRNA was attenuated by inhibitors of tropomyosin related kinase (Trk) and MEK, but not by an inhibitor for PI3K and Phospholipase C gamma (PLCγ). The up-regulation was partially blocked by an inhibitor of lysine-specific demethylase (KDM) 6B. Fluorescent imaging identified the vesicular pattern of pH-sensitive green fluorescent protein-fused CRH-BP (CRH-BP-pHluorin), which co-localized with mCherry-tagged BDNF in cortical neurons. In addition, live-cell imaging detected drastic increases of pHluorin fluorescence in neurites upon membrane depolarization. Finally, we confirmed that tetrodotoxin partially attenuated the BDNF-induced up-regulation of CRH-BP mRNA, but not that of the protein. These observations indicate the following: In cortical neurons, BDNF led to gene expression of CRH-BP and CRH. TrkB, MEK, presumably ERK, and KDM6B are involved in the BDNF-induced gene expression of CRH-BP, and BDNF is able to induce the up-regulation in a neuronal activity-independent manner. It is suggested that CRH-BP is stored into BDNF-containing secretory granules in cortical neurons, and is secreted in response to membrane depolarization.
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Affiliation(s)
- Naoki Adachi
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
| | - Shingo Suzuki
- Faculty of Medicine, Department of Anatomy and Neurobiology, Kagawa University, Kagawa, Japan
| | - Hidetada Matsuoka
- School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Satoko Fushimi
- Faculty of Medicine, Department of Anesthesiology, Kagawa University, Kagawa, Japan
| | - Junichiro Ono
- Faculty of Medicine, Department of Anesthesiology, Kagawa University, Kagawa, Japan
| | - Ken-Ichi Ohta
- Faculty of Medicine, Department of Anatomy and Neurobiology, Kagawa University, Kagawa, Japan
| | - Yohei Hirai
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
| | - Takanori Miki
- Faculty of Medicine, Department of Anatomy and Neurobiology, Kagawa University, Kagawa, Japan
| | - Hisatsugu Koshimizu
- Japan, Society for the Promotion of Science (JSPS), Tokyo, Japan
- Bio-interface Research Group, Health Research Inst., National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Japan
- Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
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17
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Hirai Y, Yoshimasu T, Fusamoto A, Aoishi Y, Yata Y, Nishiguchi H, Ohashi T, Miyasaka M, Kawago M, Oura S, Nishimura Y. P1.03-033 Long-Term Outcome of Histoculture Drug Response Assay Guided Adjuvant Chemotherapy in Patients with Non-Small Cell Lung Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Ohashi T, Yoshimasu T, Kawago M, Hirai Y, Miyasaka M, Yata Y, Aoishi Y, Oura S, Nishimura Y. P2.16-010 Removing the Chest Tube on the First Day after Surgery Does Not Contribute to the Early Discharge from the Hospital. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kido T, Horigome T, Uda M, Adachi N, Hirai Y. Generation of iPS-derived model cells for analyses of hair shaft differentiation. Biotechniques 2017; 63:131-134. [DOI: 10.2144/000114589] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 08/07/2017] [Indexed: 11/23/2022] Open
Abstract
Biological evaluation of hair growth/differentiation activity in vitro has been a formidable challenge, primarily due to the lack of relevant model cell systems. To solve this problem, we generated a stable model cell line in which successive differentiation via epidermal progenitors to hair components is easily inducible and traceable. Mouse induced pluripotent stem (iPS) cell–derived cells were selected to stably express a tetracycline (Tet)-inducible bone morphogenic protein-4 (BMP4) expression cassette and a luciferase reporter driven by a hair-specific keratin 31 gene (krt31) promoter (Tet-BMP4-KRT31-Luc iPS). While Tet- BMP4-KRT31-Luc iPS cells could be maintained as stable iPS cells, the cells differentiated to produce luciferase luminescence in the presence of all-trans retinoic acid (RA) and doxycycline (Dox), and addition of a hair differentiation factor significantly increased luciferase fluorescence. Thus, this cell line may provide a reliable cell-based screening system to evaluate drug candidates for hair differentiation activity.
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Affiliation(s)
- Takumi Kido
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, 669-1337 Japan
| | - Tomoatsu Horigome
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, 669-1337 Japan
| | - Minori Uda
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, 669-1337 Japan
| | - Naoki Adachi
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, 669-1337 Japan
| | - Yohei Hirai
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, 669-1337 Japan
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20
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Horigome T, Takumi S, Shirai K, Kido T, Hagiwara-Chatani N, Nakashima A, Adachi N, Yano H, Hirai Y. Sulfated glycosaminoglycans and non-classically secreted proteins, basic FGF and epimorphin, coordinately regulate TGF-β-induced cell behaviors of human scar dermal fibroblasts. J Dermatol Sci 2017; 86:132-141. [DOI: 10.1016/j.jdermsci.2017.01.014] [Citation(s) in RCA: 7] [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: 11/18/2016] [Revised: 01/16/2017] [Accepted: 01/31/2017] [Indexed: 12/15/2022]
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21
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Kido T, Hirai Y. Generation of iPS-derived model cells for the analysis of hair development. J Dermatol Sci 2017. [DOI: 10.1016/j.jdermsci.2017.02.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Kadono N, Horigome T, Yano H, Nakashima A, Hirai Y. Heparinoid facilitates functional expression of extracellular syntaxin-4 on keratinocyte cornification. J Dermatol Sci 2017. [DOI: 10.1016/j.jdermsci.2017.02.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Horigome T, Takumi S, Nakashima A, Yano H, Hirai Y. Regulation of scar model cell behaviors: Impacts of sulfated glycosaminoglycans and extracellular epimorphin. J Dermatol Sci 2017. [DOI: 10.1016/j.jdermsci.2017.02.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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Hagiwara-Chatani N, Shirai K, Kido T, Horigome T, Yasue A, Adachi N, Hirai Y. Membrane translocation of t-SNARE protein syntaxin-4 abrogates ground-state pluripotency in mouse embryonic stem cells. Sci Rep 2017; 7:39868. [PMID: 28057922 PMCID: PMC5216394 DOI: 10.1038/srep39868] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 07/25/2016] [Accepted: 11/28/2016] [Indexed: 02/08/2023] Open
Abstract
Embryonic stem (ES) and induced pluripotent stem (iPS) cells are attractive tools for regenerative medicine therapies. However, aberrant cell populations that display flattened morphology and lose ground-state pluripotency often appear spontaneously, unless glycogen synthase kinase 3β (GSK3β) and mitogen-activated protein kinase kinase (MEK1/2) are inactivated. Here, we show that membrane translocation of the t-SNARE protein syntaxin-4 possibly is involved in this phenomenon. We found that mouse ES cells cultured without GSK3β/MEK1/2 inhibitors (2i) spontaneously extrude syntaxin-4 at the cell surface and that artificial expression of cell surface syntaxin-4 induces appreciable morphological changes and mesodermal differentiation through dephosphorylation of Akt. Transcriptome analyses revealed several candidate elements responsible for this, specifically, an E-to P-cadherin switch and a marked downregulation of Zscan4 proteins, which are DNA-binding proteins essential for ES cell pluripotency. Embryonic carcinoma cell lines F9 and P19CL6, which maintain undifferentiated states independently of Zscan4 proteins, exhibited similar cellular behaviors upon stimulation with cell surface syntaxin-4. The functional ablation of E-cadherin and overexpression of P-cadherin reproduced syntaxin-4-induced cell morphology, demonstrating that the E- to P-cadherin switch executes morphological signals from cell surface syntaxin-4. Thus, spontaneous membrane translocation of syntaxin-4 emerged as a critical element for maintenance of the stem-cell niche.
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Affiliation(s)
- Natsumi Hagiwara-Chatani
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
| | - Kota Shirai
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
| | - Takumi Kido
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
| | - Tomoatsu Horigome
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
| | - Akihiro Yasue
- Department of Orthodontics and Dentofacial Orthopedics, Institute of Health Biosciences, The University of Tokushima, Tokushima, Japan
| | - Naoki Adachi
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
| | - Yohei Hirai
- Department of Biomedical Chemistry, Graduate School of Science and Technology, Kwansei Gakuin University, Sanda, Japan
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25
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Hasegawa T, Kadono N, Kuriyama K, Yano H, Nakashima A, Hirai Y. Inductive influence of heparin-like polysaccharide on the keratinocyte differentiation. J Dermatol Sci 2016. [DOI: 10.1016/j.jdermsci.2016.08.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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26
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Kadono N, Hirai Y. Extracellular syntaxin4 accelerates epidermal cornification via its functional core (AIEPQK). J Dermatol Sci 2016. [DOI: 10.1016/j.jdermsci.2016.08.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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27
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Kaida A, Iritani N, Yamamoto S, Kanbayashi D, Hirai Y, Kohdera U, Togawa M, Amo K, Shiomi M, Nishigaki T, Kageyama T, Kubo H. Single genetic clades of EV-D68 strains in 2010, 2013, and 2015 in Osaka City, Japan. J Clin Virol 2016. [DOI: 10.1016/j.jcv.2016.08.242] [Citation(s) in RCA: 2] [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: 11/29/2022]
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28
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Shirai K, Hagiwara N, Horigome T, Hirose Y, Kadono N, Hirai Y. Extracellularly Extruded Syntaxin-4 Binds to Laminin and Syndecan-1 to Regulate Mammary Epithelial Morphogenesis. J Cell Biochem 2016; 118:686-698. [PMID: 27463539 DOI: 10.1002/jcb.25661] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 07/26/2016] [Indexed: 12/21/2022]
Abstract
Epithelial morphogenesis in the mammary gland proceeds as a consequence of complex cell behaviors including apoptotic cell death and epithelial-mesenchymal transition (EMT); the extracellular matrix (ECM) protein laminin is crucially involved. Syntaxins mediate intracellular vesicular fusion, yet certain plasmalemmal members have been shown to possess latent extracellular functions. In this study, the extracellular subpopulation of syntaxin-4, extruded in response to the induction of differentiation or apoptosis in mammary epithelial cells, was detected. Using a tetracycline-repressive transcriptional system and clonal mammary epithelial cells, SCp2, we found that the expression of cell surface syntaxin-4 elicits EMT-like cell behaviors. Intriguingly, these cells did not up-regulate key transcription factors associated with the canonical EMT such as snail, slug, or twist, and repressed translation of E-cadherin. Concurrently, the cells completely evaded the cellular aggregation/rounding triggered by a potent EMT blocker laminin-111. We found that the recombinant form of syntaxin-4 not only bound to laminin but also latched onto the glycosaminoglycan (GAG) side chains of syndecan-1, a laminin receptor that mediates epithelial morphogenesis. Thus, temporal extracellular extrusion of syntaxin-4 emerged as a novel regulatory element for laminin-induced mammary epithelial cell behaviors. J. Cell. Biochem. 118: 686-698, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Kota Shirai
- Department of Biomedical Chemistry, Kwansei Gakuin University. 2-1, Gakuen, Sanda, 669-1337, Japan
| | - Natsumi Hagiwara
- Department of Biomedical Chemistry, Kwansei Gakuin University. 2-1, Gakuen, Sanda, 669-1337, Japan
| | - Tomoatsu Horigome
- Department of Biomedical Chemistry, Kwansei Gakuin University. 2-1, Gakuen, Sanda, 669-1337, Japan
| | - Yuina Hirose
- Department of Biomedical Chemistry, Kwansei Gakuin University. 2-1, Gakuen, Sanda, 669-1337, Japan
| | - Nanako Kadono
- Department of Biomedical Chemistry, Kwansei Gakuin University. 2-1, Gakuen, Sanda, 669-1337, Japan
| | - Yohei Hirai
- Department of Biomedical Chemistry, Kwansei Gakuin University. 2-1, Gakuen, Sanda, 669-1337, Japan
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29
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Norimatsu Y, Yamaguchi T, Taira T, Abe H, Sakamoto H, Takenaka M, Yanoh K, Yoshinobu M, Irino S, Hirai Y, Kobayashi TK. Inter-observer reproducibility of endometrial cytology by the Osaki Study Group method: utilising the Becton Dickinson SurePath ™ liquid-based cytology. Cytopathology 2016; 27:472-478. [PMID: 27109167 DOI: 10.1111/cyt.12342] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/21/2016] [Indexed: 12/23/2022]
Abstract
OBJECTIVE The purpose of the present study was to evaluate the reproducibility of the cytological diagnosis of endometrial lesions by the Osaki Study Group (OSG) method of new cytological diagnostic criteria using BD SurePath™ (SP)-liquid-based cytology (LBC). METHODS This cytological classification using the OSG method consists of six categories: (i) normal endometrium (NE), (ii) endometrial glandular and stromal breakdown (EGBD), (iii) atypical endometrial cells, cannot exclude atypical endometrial hyperplasia or more (ATEC-A), (iv) adenocarcinoma including atypical endometrial hyperplasia or malignant tumour (Malignancy), (v) endometrial hyperplasia without atypia (EH) and (vi) atypical endometrial cells of undetermined significance (ATEC-US). For this study, a total 244 endometrial samplings were classified by two academic cytopathologists as follows: 147 NE cases , 36 EGBD cases , 47 Malignant cases, eight ATEC-A cases, two EH cases and four ATEC-US cases. To confirm the reproducibility of the diagnosis and to study the inter- and intra-observer agreement further, a second review round followed at 3-month intervals, which included three additional cytopathologists. RESULTS The inter-observer agreement of NE classes improved progressively from 'good to fair' to 'excellent', with values increasing from 0.70 to 0.81. Both EGBD and Malignancy classes improved progressively from 'good to fair' to 'excellent', with values increasing from 0.62-0.63 to 0.84-0.95, respectively. The overall intra-observer agreement between the first and the second rounds was 'good to fair' to 'excellent', with values changing from 0.79 to 0.85. All kappa improvements were significant (P < 0.0001). CONCLUSION In this study, it seemed that the use of the OSG method as the new diagnostic criteria for SP-LBC preparation, may be a valid method to improve the precision (reproducibility) of endometrial cytology.
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Affiliation(s)
- Y Norimatsu
- Faculty of Health Sciences, Department of Medical Technology, Ehime Prefectural University of Health Sciences, Ehime, Japan
| | - T Yamaguchi
- Department of Pathology, Kurume University Hospital, Fukuoka, Japan
| | - T Taira
- Department of Pathology, Kurume University Hospital, Fukuoka, Japan
| | - H Abe
- Department of Pathology, Kurume University Hospital, Fukuoka, Japan
| | - H Sakamoto
- Department of Cytology, The Tohkai Cytopathology Institute, Gifu, Japan
| | - M Takenaka
- Department of Cytology, The Tohkai Cytopathology Institute, Gifu, Japan
| | - K Yanoh
- Departments of Obstetrics and Gynecology and Pathology, JA Suzuka General Hospital, Mie, Japan
| | - M Yoshinobu
- Department of Diagnostic Pathology, Toyama Red Cross Hospital, Toyama, Japan
| | - S Irino
- Faculty of Health Sciences, Department of Nursing, Ehime Prefectural University of Health Sciences, Ehime, Japan
| | - Y Hirai
- Department of Obstetrics and Gynecology, Tokyo Women's Medical University, Tokyo, Japan
| | - T K Kobayashi
- Cancer Education and Research Center, Osaka University Graduate School of Medicine, Osaka, Japan
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Maki S, Hirai Y, Niino T, Matsumoto T. ASSESSMENT OF MOLECULAR GENETIC STABILITY BETWEEN LONG-TERM CRYOPRESERVED AND TISSUE CULTURED WASABI (Wasabia japonica) PLANTS. Cryo Letters 2015; 36:318-324. [PMID: 26574679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Maintaining the genetic integrity in long-term tissue cultured and cryopreserved plants is important for the conservation of plant genetic resources. OBJECTIVE In this study, the genetic stability of cryopreserved wasabi shoot tips stored for 10 years at -150 degree C was visualized using Amplified Fragment Length Polymorphism (AFLP) and Methylation Sensitive Amplified Polymorphism (MSAP). MATERIALS AND METHODS The study included plants derived from cryopreserved shoot tips after 10.5 years storage at -150 degree C (LN10yr), after 2 h storage at -196 degree C (LN2hr), cryopreservation controls (No LN cooling (TC)) and non-treated controls without LN cooling (LC). The donor plants for LN2hr, TC and LC were also maintained in vitro at 20 degree C for the same period. RESULTS Neither technique detected genetic variations in either control or cryopreserved plants. Some mutations were noted in plants maintained in tissue culture for 10 years. Comparison of genome stability for TC and LN2hr plants showed only a minor change in DNA. However, when comparing the LC and Ln10yr, many differences were found. CONCLUSION We conclude that cryopreservation is a superior conservation method compared to tissue culture in maintaining genetic stability for a long-term storage of wasabi germplasm.
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Affiliation(s)
- S Maki
- Department of Science of Technology Innovation, Nagaoka University of Technology, Nagaoka, Niigata, Japan.
| | - Y Hirai
- Department of Applied Chemistry and Biotechnology, Niihama National College of Technology, Niihama, Ehime, Japan
| | - T Niino
- National Institute of Agrobiological Science, Tsukuba, Ibaraki, Japan
| | - T Matsumoto
- Faculty of Life and Environment Science, Shimane University, Matsue, Shimane, Japan
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Nakashima Y, Tamai M, Kita J, Tuji S, Fukui S, Umeda M, Nishino A, Suzuki T, Horai Y, Nishimura T, Koga T, Kawashiri S, Iwamoto N, Ichinose K, Hirai Y, Arima K, Yamasaki S, Nakamura H, Origuchi T, Uetani M, Aoyagi K, Eguchi K, Kawakami A. FRI0027 MRI-Proven Bone Marrow Oedema at Baseline is the Strongest Predictor Toward the Development of Rapid Radiographic Progression at 1 Year in Patients with Early-Stage Rheumatoid Arthritis: Results from Nagasaki University Early Arthritis Cohort. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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32
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Umeda M, Koga T, Ichinose K, Tsuji S, Fukui S, Nishino A, Nakashima Y, Suzuki T, Horai Y, Hirai Y, Kawashiri SY, Iwamoto N, Aramaki T, Tamai M, Nakamura H, Yamamoto K, Origuchi T, Ueki Y, Kawakami A. AB0180 The Role of Immune Regulation of CD4+CD52High T Cells in Systemic Lupus Erythematosus. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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33
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Masuda E, Shirai K, Maekubo K, Hirai Y. A newly established culture method highlights regulatory roles of retinoic acid on morphogenesis and calcification of mammalian limb cartilage. Biotechniques 2015; 58:318-24. [DOI: 10.2144/000114300] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 03/25/2015] [Indexed: 11/23/2022] Open
Abstract
During mammalian embryogenesis, sclerotome-derived chondrocytes in the limb bud are arranged into a complicated bone shape with specific areas undergoing hypertrophy and calcification, creating a region-specific mineralized pattern in the cartilage. To follow chondrogenesis progression in vitro, we isolated limb cartilage from mice on embryonic day 13 (E13) and cultured it at the air-liquid interface after microsurgical removal of the ectoderm/epidermis. Explants underwent proper morphogenesis, giving rise to complete templates for limb bones in vitro. We found that region-specific calcification patterns resembling limbs of prepartum mature embryos could be induced in explants using culture medium containing high concentrations of CaCl2 (Ca), ascorbic acid (AA), and β-glycerophosphoric acid (BGP). In this culture system, excess amounts of all-trans retinoic acid (RA) severely disrupted morphogenesis and calcification patterns in limb cartilage. These effects were more pronounced in forearms than in phalanges. Although dissociated, the nascent chondrocytes in culture did not give rise to cartilage units even though augmented calcification was induced in these cell aggregates in the presence of RA. Taken together, our newly established culture system revealed that RA independently regulates three-dimensional morphogenesis and calcification.
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Affiliation(s)
- Eizo Masuda
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Kota Shirai
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Kenji Maekubo
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Yohei Hirai
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
- Research Center for Intelligent Bio-Materials, Kwansei Gakuin University, Sanda, Japan
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Fukui S, Ichinose K, Tsuji S, Umeda M, Nishino A, Nakashima Y, Suzuki T, Horai Y, Koga T, Kawashiri S, Iwamoto N, Hirai Y, Tamai M, Nakamura H, Origuchi T, Kawakami A. AB0665 Hypocholesterolemia at Diagnosis Can Predict the Relapse in Patients with Takayasu Arteritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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35
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Ushigusa T, Ichinose K, Tsuji S, Umeda M, Fukui S, Nishino A, Nakashima Y, Suzuki T, Horai Y, Koga T, Kawashiri SY, Iwamoto N, Hirai Y, Tamai M, Nakamura H, Origuchi T, Kawakami A. FRI0429 Evaluation of Soluble α-Klotho in Neuropsychiatric Systemic Lupus Erythematosus. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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36
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Kadono N, Hagiwara N, Tagawa T, Maekubo K, Hirai Y. Extracellularly Extruded Syntaxin-4 Is a Potent Cornification Regulator of Epidermal Keratinocytes. Mol Med 2015; 21:77-86. [PMID: 25611434 DOI: 10.2119/molmed.2014.00234] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 01/13/2015] [Indexed: 01/19/2023] Open
Abstract
In the skin epidermis, keratinocytes undergo anchorage-dependent cornification, which gives rise to stratified multilayers, each with a distinct differentiation feature. The active formation of the cornified cell envelope (CCE), an important element in the skin barrier, occurs in keratinocytes of the upper epidermal layers and impacts their terminal differentiation. In the present study, we identified the extracellularly extruded syntaxin-4 as a potent differentiation regulator of epidermal keratinocytes. We found that differentiation stimuli led to the acceleration of syntaxin-4 exposure at the keratinocyte cell surface and that the artificial control of extracellular syntaxin-4, either by the forced expression of several syntaxin-4 mutants with structural alterations at the putative functional core site (AIEPQK), or by using antagonistic circular peptides containing this core sequence, dramatically influenced the CCE formation, with spatial misexpression of TGase1 and involucrin. We also found that the topical application of a peptide that exerted the most prominent antagonistic activity for syntaxin-4, named ST4n1, evidently prevented the formation of the hyperplastic and hyperkeratotic epidermis generated by physical irritation in HR-1 mice skin. Collectively, these results demonstrate that extracellularly extruded syntaxin-4 is a potent regulator of CCE differentiation, and that ST4n1 has potential as a clinically applicable reagent for keratotic skin lesions.
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Affiliation(s)
- Nanako Kadono
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan.,Research Center for Intelligent Bio-Materials, Kwansei Gakuin University, Sanda, Japan
| | - Natsumi Hagiwara
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan.,Research Center for Intelligent Bio-Materials, Kwansei Gakuin University, Sanda, Japan
| | - Takashi Tagawa
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Kenji Maekubo
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Yohei Hirai
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan.,Research Center for Intelligent Bio-Materials, Kwansei Gakuin University, Sanda, Japan
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Miyake T, Yamamoto T, Hirai Y, Otsuka M, Hamada T, Tsuji K, Morizane S, Suzuki D, Aoyama Y, Iwatsuki K. Survival rates and prognostic factors of Epstein-Barr virus-associated hydroa vacciniforme and hypersensitivity to mosquito bites. Br J Dermatol 2014; 172:56-63. [DOI: 10.1111/bjd.13411] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2014] [Indexed: 11/28/2022]
Affiliation(s)
- T. Miyake
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - T. Yamamoto
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
- Department of Dermatology; Kawasaki Medical School; Okayama Japan
| | - Y. Hirai
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - M. Otsuka
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - T. Hamada
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - K. Tsuji
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - S. Morizane
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - D. Suzuki
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - Y. Aoyama
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - K. Iwatsuki
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
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Ohzono T, Hirai Y, Suzuki K, Shimomura M, Uchida N. Reinforced shape-tunable microwrinkles formed on a porous-film-embedded elastomer surface. Soft Matter 2014; 10:7165-7169. [PMID: 25097044 DOI: 10.1039/c4sm00942h] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A new structural design is proposed for wrinkling to improve mechanical durability by exploiting a porous polymer film embedded on the surface of an elastomer, which acts as a hard layer, buckles into wrinkles and effectively suppresses fatal failures such as delamination and cracking.
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Affiliation(s)
- T Ohzono
- Nanosystem Research Institute, AIST, 1-1-1 Higashi, Tsukuba, 305-8565, Japan.
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39
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Miura Y, Hagiwara N, Radisky DC, Hirai Y. CCAAT/enhancer binding protein beta (C/EBPβ) isoform balance as a regulator of epithelial-mesenchymal transition in mouse mammary epithelial cells. Exp Cell Res 2014; 327:146-55. [PMID: 24881817 DOI: 10.1016/j.yexcr.2014.05.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 05/03/2014] [Accepted: 05/21/2014] [Indexed: 12/22/2022]
Abstract
Activation of the epithelial-mesenchymal transition (EMT) program promotes cell invasion and metastasis, and is reversed through mesenchymal-epithelial transition (MET) after formation of distant metastases. Here, we show that an imbalance of gene products encoded by the transcriptional factor C/EBPβ, LAP (liver-enriched activating protein) and LIP (liver-enriched inhibitory protein), can regulate both EMT- and MET-like phenotypic changes in mouse mammary epithelial cells. By using tetracycline repressive LIP expression constructs, we found that SCp2 cells, a clonal epithelial line of COMMA1-D cells, expressed EMT markers, lost the ability to undergo alveolar-like morphogenesis in 3D Matrigel, and acquired properties of benign adenoma cells. Conversely, we found that inducible expression of LAP in SCg6 cells, a clonal fibroblastic line of COMMA1-D cells, began to express epithelial keratins with suppression of proliferation. The overexpression of the C/EBPβ gene products in these COMMA1-D derivatives was suppressed by long-term cultivation on tissue culture plastic, but gene expression was maintained in cells grown on Matrigel or exposed to proteasome inhibitors. Thus, imbalances of C/EBPβ gene products in mouse mammary epithelial cells, which are affected by contact with basement membrane, are defined as a potential regulator of metastatic potential.
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Affiliation(s)
- Yuka Miura
- Department of Bioscience, Graduate School of Science and Technology, Kwansei Gakuin University, Hyogo, 2-1 Gakuen, Sanda 669-1337 Japan
| | - Natsumi Hagiwara
- Department of Bioscience, Graduate School of Science and Technology, Kwansei Gakuin University, Hyogo, 2-1 Gakuen, Sanda 669-1337 Japan
| | - Derek C Radisky
- Department of Cancer Biology, Mayo Clinic, Jacksonville, FL 32225 USA
| | - Yohei Hirai
- Department of Bioscience, Graduate School of Science and Technology, Kwansei Gakuin University, Hyogo, 2-1 Gakuen, Sanda 669-1337 Japan.
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Hirai Y, Asahata S, Ainoda Y, Goto A, Fujita T, Totsuka K. Nosocomial Candida parapsilosis candidaemia: risk factors, antifungal susceptibility and outcome. J Hosp Infect 2014; 87:54-8. [PMID: 24698737 DOI: 10.1016/j.jhin.2014.02.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 02/10/2014] [Indexed: 11/17/2022]
Abstract
A retrospective analysis was undertaken from 2000 to 2010 to show the risk factors associated with death within 30 days in patients with C. parapsilosis candidaemia (CPC). Fifty-one cases of nosocomial CPC were included in the analysis. All isolates from blood cultures were susceptible to micafungin and fluconazole. The overall mortality rate was 23.5%, and the most severe complications were endocarditis (5.9%) and endophthalmitis (5.9%). On multi-variate analysis, APACHE II score >25 (odds ratio 43.9) and retained cardiovascular prosthetic materials (RCPM) (prosthetic valve or graft) (odds ratio 14.6) were found to be risk factors associated with death. Prompt surgical removal should be considered in CPC patients with RCPM.
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Affiliation(s)
- Y Hirai
- Department of Infectious Diseases, Tokyo Women's Medical University Hospital, Shinjuku-ku, Tokyo, Japan; Department of Haematology, Tokyo Women's Medical University Hospital, Shinjuku-ku, Tokyo, Japan.
| | - S Asahata
- Department of Infectious Diseases, Tokyo Women's Medical University Hospital, Shinjuku-ku, Tokyo, Japan
| | - Y Ainoda
- Department of Infectious Diseases, Tokyo Women's Medical University Hospital, Shinjuku-ku, Tokyo, Japan
| | - A Goto
- Laboratory of Microbiology, Tokyo Women's Medical University Hospital, Shinjuku-ku, Tokyo, Japan
| | - T Fujita
- Department of Infectious Diseases, Tokyo Women's Medical University Hospital, Shinjuku-ku, Tokyo, Japan
| | - K Totsuka
- Department of Infectious Diseases, Tokyo Women's Medical University Hospital, Shinjuku-ku, Tokyo, Japan
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41
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Fujimoto S, Takase T, Kadono N, Maekubo K, Hirai Y. Krtap11-1, a hair keratin-associated protein, as a possible crucial element for the physical properties of hair shafts. J Dermatol Sci 2013; 74:39-47. [PMID: 24439038 DOI: 10.1016/j.jdermsci.2013.12.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [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: 10/29/2013] [Revised: 12/17/2013] [Accepted: 12/18/2013] [Indexed: 12/11/2022]
Abstract
BACKGROUND The physical properties of the hair are predominantly determined by the assembly of keratin bundles. The keratin-associated proteins (Krtaps) are thought to be involved in keratin bundle assembly, however, the functional role of the individual member still remains largely unknown. OBJECTIVE The aim of this study is to clarify the role of a unique class of Krtaps, Krtap11-1, in the development and physical properties of the hair. METHODS The expression regulation of Krtap11-1 was analyzed and its binding partners in the hair cortex were determined. Also, the effects of the forcible expression of this protein on the hair follicle development were analyzed in culture. RESULTS The expression pattern of Krtap11-1 was concentrically asymmetric in the faulty hair that develops in Foxn1nu mice. In cultured keratinocytes, the expression of Krtap11-1 transgene product was strictly regulated by the keratinization process and proteasome-dependent protein elimination. While the association with keratin as well as the cohesive self-assembly of Krtap11-1 appeared to be stabilized by disulfide cross-links, the biotinylated Krtap11-1 probe enabled the adherence to certain type I keratins in the hair cortex, including K31, 33 and 34, in the absence of disulfide formation. When embryonic upper lip rudiments were forcibly introduced with Krtap11-1, the hair follicles formed irregularly arranged globular hair keratin-clumps surrounded by multilayered epithelial cells in culture. CONCLUSION Krtap11-1 may play an important role on keratin-bundle assembly in the hair cortex and this study provides insight into the physical properties of the hair shaft.
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Affiliation(s)
- Shunsuke Fujimoto
- Department of Bioscience, Graduate School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
| | - Takahisa Takase
- Department of Bioscience, Graduate School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
| | - Nanako Kadono
- Department of Bioscience, Graduate School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
| | - Kenji Maekubo
- Department of Bioscience, Graduate School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
| | - Yohei Hirai
- Department of Bioscience, Graduate School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan.
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Miyazaki T, Kadono N, Konishi Y, Hagiwara N, Maekubo K, Hirai Y. Effluent syntaxin3 from dying cells affords protection against apoptosis in epidermal keratinocytes. Exp Dermatol 2013; 22:845-7. [DOI: 10.1111/exd.12278] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/28/2013] [Indexed: 11/28/2022]
Affiliation(s)
| | - Nanako Kadono
- Department of Bioscience; Kwansei Gakuin University; Sanda Japan
| | | | - Natsumi Hagiwara
- Department of Bioscience; Kwansei Gakuin University; Sanda Japan
| | - Kenji Maekubo
- Department of Bioscience; Kwansei Gakuin University; Sanda Japan
| | - Yohei Hirai
- Department of Bioscience; Kwansei Gakuin University; Sanda Japan
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Bascom JL, Radisky DC, Koh E, Fata JE, Lo A, Mori H, Roosta N, Hirai Y, Bissell MJ. Epimorphin is a novel regulator of the progesterone receptor isoform-a. Cancer Res 2013; 73:5719-29. [PMID: 23867473 DOI: 10.1158/0008-5472.can-13-0021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Epimorphin/syntaxin-2 is a membrane-tethered protein localized extracellularly (Epim) and intracellularly (Stx-2). The extracellular form Epim stimulates morphogenic processes in a range of tissues, including in murine mammary glands where its overexpression in luminal epithelial cells is sufficient to drive hyperplasia and neoplasia. We analyzed WAP-Epim transgenic mice to gain insight into how Epim promotes malignancy. Ectopic overexpression of Epim during postnatal mammary gland development led to early side-branching onset, precocious bud formation, and increased proliferation of mammary epithelial cells. Conversely, peptide-based inhibition of Epim function reduced side branching. Because increased side branching and hyperplasia occurs similarly in mice upon overexpression of the progesterone receptor isoform-a (Pgr-a), we investigated whether Epim exhibits these phenotypes through Pgr modulation. Epim overexpression indeed led to a steep upregulation of both total Pgr mRNA and Pgr-a protein levels. Notably, the Pgr antagonist RU486 abrogated Epim-induced ductal side branching, mammary epithelial cell proliferation, and bud formation. Evaluation of Epim signaling in a three-dimensional ex vivo culture system showed that its action was dependent on binding to its extracellular receptor, integrin-αV, and on matrix metalloproteinase 3 activity downstream of Pgr-a. These findings elucidate a hitherto unknown transcriptional regulator of Pgr-a, and shed light on how overexpression of Epim leads to malignancy.
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Affiliation(s)
- Jamie L Bascom
- Authors' Affiliations: Life Science Division, Lawrence Berkeley National Laboratory, Berkeley, California; Mayo Clinic Cancer Center, Jacksonville, Florida; College of Staten Island, City University of New York, Staten Island, New York; and Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
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Ikeda S, Tokuda K, Kanamori H, Hirai Y, Endo S, Kunishima H, Kaku M. P119: Hand hygiene compliance among nurses in a Japanese tertiary hospital emergency department. Antimicrob Resist Infect Control 2013. [PMCID: PMC3688184 DOI: 10.1186/2047-2994-2-s1-p119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Daigo F, Asahata S, Ainoda Y, Fujita T, Hirai Y, Kotani T, Ozaki M, Totsuka K. P350 Can outcomes of blood culture-positive intensive care unit (ICU) patients be predicted based on pathogenic bacteria? Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70591-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ainoda Y, Asahata S, Fujita T, Hirai Y, Totsuka K. P49 Evaluation of susceptibility to oxacillin and prognosis in patients with S. lugdunensis bacteremia. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70294-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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47
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Shimizu T, Hirai Y, Miyamoto A. Expression of Cyclins and Cyclin-Dependent Kinase Inhibitors in Granulosa Cells from Bovine Ovary. Reprod Domest Anim 2013; 48:e65-9. [DOI: 10.1111/rda.12177] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 04/04/2013] [Indexed: 11/30/2022]
Affiliation(s)
- T Shimizu
- Graduate School of Animal and Food Hygiene; Obihiro University of Agriculture and Veterinary Medicine; Obihiro; Hokkaido; Japan
| | - Y Hirai
- Graduate School of Animal and Food Hygiene; Obihiro University of Agriculture and Veterinary Medicine; Obihiro; Hokkaido; Japan
| | - A Miyamoto
- Graduate School of Animal and Food Hygiene; Obihiro University of Agriculture and Veterinary Medicine; Obihiro; Hokkaido; Japan
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Okugawa Y, Hirai Y. Extracellular epimorphin modulates epidermal differentiation signals mediated by epidermal growth factor receptor. J Dermatol Sci 2013; 69:236-42. [DOI: 10.1016/j.jdermsci.2012.11.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 11/04/2012] [Accepted: 11/06/2012] [Indexed: 11/29/2022]
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Abstract
Studies of the epidermis have been carried out in various models, such as the monolayer culture in vitro model and three-dimensional (3D) skin models, that are spatially organized to display the architectural features seen in human skin. These models have furthered our understanding of epidermal cell biology and provided quite a few lines of evidence on proliferation, cellular metabolism, morphological status, and state of differentiation. In this chapter, we describe a novel method using epithelial cell aggregates embedded in a collagen gel, instead of individual cells, for building cell-cell and cell-matrix interactions. Analyzing cell behaviors during epidermal differentiation would be helpful. Our method would help to analyze a possible regulatory mechanism underlying epidermal differentiation.
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Affiliation(s)
- Yoji Okugawa
- Department of Bioscience, School of Science and Engineering, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan,
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Shono M, Yoshioka R, Chatani Y, Hirai Y. Ectopic Expression of Syntaxin3 Affects Behaviors of B16 Melanoma by Controlling Actin Dynamics. Cell Struct Funct 2013; 38:97-107. [DOI: 10.1247/csf.12032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Michiko Shono
- Department of Bioscience, School of Science and Technology, Kwansei Gakuin University
| | - Ryosuke Yoshioka
- Department of Bioscience, School of Science and Technology, Kwansei Gakuin University
| | - Yoshimitsu Chatani
- Department of Bioscience, School of Science and Technology, Kwansei Gakuin University
| | - Yohei Hirai
- Department of Bioscience, School of Science and Technology, Kwansei Gakuin University
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