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Tanaka S, Nakata E, Ozaki T, Toyooka S. Reconstruction method for massive lateral chest wall sarcoma using titanium plates and mesh: a case report. J Cardiothorac Surg 2024; 19:245. [PMID: 38632587 PMCID: PMC11025187 DOI: 10.1186/s13019-024-02639-5] [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: 08/18/2023] [Accepted: 03/11/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Very large chest wall resections can lead to acute thoracic insufficiency syndrome due to the interdependence of lung expansion and thoracic volume. Chest wall tumor surgeries often encounter complications, with the size of the chest wall defect being a significant predictor. Several methods for large chest wall reconstruction have been described, aiming to provide stability, prevent flail chest, and ensure airtight closure. However, no single method fulfills all requirements. Composite chest wall reconstruction using titanium plates and Gore-Tex patches has shown the potential to minimize physiologic abnormalities caused by extensive defects. CASE PRESENTATION A 42-year-old man with myxofibrosarcoma underwent multiple surgeries, chemotherapies, and radiation therapies due to repeated local recurrences. After right arm amputation and resection of the right third to fifth ribs, a local recurrence was detected. A 30 × 40 cm chest wall defect was resected en bloc, and a titanium plate was used for three-dimensional formability, preventing flail chest and volume loss. The Gore-Tex patch was then reconstructed into an arch shape, allowing lateral thoracic mobility. The patient recovered well and did not experience respiratory dysfunction or local recurrence but later succumbed to distant metastasis. CONCLUSIONS In this case, the combination of a titanium plate and a Gore-Tex patch proved effective for reconstructing massive lateral chest wall defects. The approach provided stability, preserved thoracic volume, and allowed for lateral mobility. While the patient achieved a successful outcome in terms of local recurrence and respiratory function, distant metastasis remained a challenge for myxofibrosarcoma patients, and its impact on long-term prognosis requires further investigation. Nevertheless, the described procedure offers promise for managing extensive chest wall defects.
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Affiliation(s)
- Shin Tanaka
- Department of General Thoracic Surgery and Breast and Endocrinological Surgery, Dentistry, and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Eiji Nakata
- Department of Orthopedic Surgery, Dentistry, and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1, Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
| | - Toshifumi Ozaki
- Department of Orthopedic Surgery, Dentistry, and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1, Shikata-cho, Kita-ku, Okayama, 700-8558, Japan
| | - Shinichi Toyooka
- Department of General Thoracic Surgery and Breast and Endocrinological Surgery, Dentistry, and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
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Takihira S, Yamada D, Osone T, Takao T, Sakaguchi M, Hakozaki M, Itano T, Nakata E, Fujiwara T, Kunisada T, Ozaki T, Takarada T. PRRX1-TOP2A interaction is a malignancy-promoting factor in human malignant peripheral nerve sheath tumours. Br J Cancer 2024:10.1038/s41416-024-02632-8. [PMID: 38448751 DOI: 10.1038/s41416-024-02632-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 02/15/2024] [Accepted: 02/19/2024] [Indexed: 03/08/2024] Open
Abstract
BACKGROUND Paired related-homeobox 1 (PRRX1) is a transcription factor in the regulation of developmental morphogenetic processes. There is growing evidence that PRRX1 is highly expressed in certain cancers and is critically involved in human survival prognosis. However, the molecular mechanism of PRRX1 in cancer malignancy remains to be elucidated. METHODS PRRX1 expression in human Malignant peripheral nerve sheath tumours (MPNSTs) samples was detected immunohistochemically to evaluate survival prognosis. MPNST models with PRRX1 gene knockdown or overexpression were constructed in vitro and the phenotype of MPNST cells was evaluated. Bioinformatics analysis combined with co-immunoprecipitation, mass spectrometry, RNA-seq and structural prediction were used to identify proteins interacting with PRRX1. RESULTS High expression of PRRX1 was associated with a poor prognosis for MPNST. PRRX1 knockdown suppressed the tumorigenic potential. PRRX1 overexpressed in MPNSTs directly interacts with topoisomerase 2 A (TOP2A) to cooperatively promote epithelial-mesenchymal transition and increase expression of tumour malignancy-related gene sets including mTORC1, KRAS and SRC signalling pathways. Etoposide, a TOP2A inhibitor used in the treatment of MPNST, may exhibit one of its anticancer effects by inhibiting the PRRX1-TOP2A interaction. CONCLUSION Targeting the PRRX1-TOP2A interaction in malignant tumours with high PRRX1 expression might provide a novel tumour-selective therapeutic strategy.
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Affiliation(s)
- Shota Takihira
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
- Department of Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Daisuke Yamada
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Tatsunori Osone
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Tomoka Takao
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Masakiyo Sakaguchi
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Michiyuki Hakozaki
- Department of Orthopedic Surgery, Fukushima Medical University School of Medicine, Fukushima, 960-1295, Japan
| | - Takuto Itano
- Department of Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Eiji Nakata
- Department of Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Tomohiro Fujiwara
- Department of Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Toshiyuki Kunisada
- Department of Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan
| | - Takeshi Takarada
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, 700-8558, Japan.
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Katayama H, Fujimura A, Huang R, Otani Y, Itano T, Fujiwara T, Kunisada T, Nakata E, Ozaki T. Role of catecholamine synthases in the maintenance of cancer stem-like cells in malignant peripheral nerve sheath tumors. Cancer Sci 2024; 115:871-882. [PMID: 38279513 PMCID: PMC10921001 DOI: 10.1111/cas.16077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/08/2023] [Accepted: 12/30/2023] [Indexed: 01/28/2024] Open
Abstract
Malignant peripheral nerve sheath tumors (MPNSTs) are malignant tumors that are derived from Schwann cell lineage around peripheral nerves. As in many other cancer types, cancer stem cells (CSCs) have been identified in MPNSTs, and they are considered the cause of treatment resistance, recurrence, and metastasis. As an element defining the cancer stemness of MPNSTs, we previously reported a molecular mechanism by which exogenous adrenaline activates a core cancer stemness factor, YAP/TAZ, through β2 adrenoceptor (ADRB2). In this study, we found that MPNST cells express catecholamine synthases and that these enzymes are essential for maintaining cancer stemness, such as the ability to self-renew and maintain an undifferentiated state. Through gene knockdown and inhibition of these enzymes, we confirmed that catecholamines are indeed synthesized in MPNST cells. The results confirmed that catecholamine synthase knockdown in MPNST cells reduces the activity of YAP/TAZ. These data suggest that a mechanism of YAP/TAZ activation by de novo synthesized adrenaline, as well as exogenous adrenaline, may exist in the maintenance of cancer stemness of MPNST cells. This mechanism not only helps to understand the pathology of MPNST, but could also contribute to the development of therapeutic strategies for MPNST.
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Affiliation(s)
- Haruyoshi Katayama
- Department of Orthopedic SurgeryOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Atsushi Fujimura
- Department of Cellular PhysiologyOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
- Neutron Therapy Research CenterOkayama UniversityOkayamaJapan
| | - Rongsheng Huang
- Department of Trauma OrthopedicsThe Second Hospital of Dalian Medical UniversityDalianChina
| | - Yusuke Otani
- Department of General Thoracic Surgery and Breast and Endocrinological SurgeryOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Takuto Itano
- Department of Orthopedic SurgeryOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Tomohiro Fujiwara
- Department of Orthopedic SurgeryOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Toshiyuki Kunisada
- Department of Orthopedic SurgeryOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Eiji Nakata
- Department of Orthopedic SurgeryOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
| | - Toshifumi Ozaki
- Department of Orthopedic SurgeryOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaJapan
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Krishnamurthy K, Rajendran A, Nakata E, Morii T. Near Quantitative Ligation Results in Resistance of DNA Origami Against Nuclease and Cell Lysate. Small Methods 2024; 8:e2300999. [PMID: 37736703 DOI: 10.1002/smtd.202300999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Indexed: 09/23/2023]
Abstract
There have been limited efforts to ligate the staple nicks in DNA origami which is crucial for their stability against thermal and mechanical treatments, and chemical and biological environments. Here, two near quantitative ligation methods are demonstrated for the native backbone linkage at the nicks in origami: i) a cosolvent dimethyl sulfoxide (DMSO)-assisted enzymatic ligation and ii) enzyme-free chemical ligation by CNBr. Both methods achieved over 90% ligation in 2D origami, only CNBr-method resulted in ≈80% ligation in 3D origami, while the enzyme-alone yielded 31-55% (2D) or 22-36% (3D) ligation. Only CNBr-method worked efficiently for 3D origami. The CNBr-mediated reaction is completed within 5 min, while DMSO-method took overnight. Ligation by these methods improved the structural stability up to 30 °C, stability during the electrophoresis and subsequent extraction, and against nuclease and cell lysate. These methods are straightforward, non-tedious, and superior in terms of cost, reaction time, and efficiency.
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Affiliation(s)
| | - Arivazhagan Rajendran
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan
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Endo H, Yamada K, Tetsunaga T, Namba Y, Sugimoto Y, Mitani S, Nakata E, Ozaki T. Comparison between Cases of Total Hip Arthroplasty Followed by Colonna Capsular Arthroplasty and Lorenz Cast Reduction in Patients with Developmental Dysplasia of the Hip. Acta Med Okayama 2023; 77:655-663. [PMID: 38145941 DOI: 10.18926/amo/66159] [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] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Most patients with developmental dysplasia of the hip (DDH) now receive closed-reduction treatment within 6 months after birth. The long-term outcomes of patients with late-detection DDH have remained unclear. We reviewed the clinical records of 18 patients who underwent Colonna capsular arthroplasty (n=8) or closed reduction (n=10) for developmental dysplasia of the hip as infants or young children and underwent total hip arthroplasty approximately in midlife. Both the Colonna capsular arthroplasty and closed reduction groups achieved good clinical results after total hip arthroplasty. However, the operating time was longer and the improvements of hip range of motion and clinical score were significantly worse in the Colonna capsular arthroplasty group than in the closed reduction group.
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Affiliation(s)
- Hirosuke Endo
- Department of Bone and Joint Surgery, Kawasaki Medical School
| | - Kazuki Yamada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Tomonori Tetsunaga
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Yoshifumi Namba
- Department of Bone and Joint Surgery, Kawasaki Medical School
| | | | - Shigeru Mitani
- Department of Bone and Joint Surgery, Kawasaki Medical School
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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Zhang S, Nakata E, Lin P, Morii T. An Artificial Liposome Compartment with Size Exclusion Molecular Transport. Chemistry 2023; 29:e202302093. [PMID: 37668304 DOI: 10.1002/chem.202302093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/28/2023] [Accepted: 09/04/2023] [Indexed: 09/06/2023]
Abstract
The cellular compartment plays an essential role in organizing the complex and diverse biochemical reactions within the cell. By mimicking the function of such cellular compartments, the challenge of constructing artificial compartments has been taken up to develop new biochemical tools for efficient material production and diagnostics. The important features required for the artificial compartment are that it isolates the interior from the external environment and is further functionalized to control the transport of target chemicals to regulate the interior concentration of both substrate and reaction products. In this study, an artificial compartment with size-selective molecular transport function was constructed by using a DNA origami-guided liposome prepared by modifying the method reported by Perrault et al. This completely isolates the liposome interior, including the DNA origami skeleton, from the external environment and allows the assembly of a defined number of molecules of interest inside and/or outside the compartment. By incorporating a bacterial membrane protein, OmpF, into the liposome, the resulting artificial compartment was shown to transport only the molecule of interest with a molecular weight below 600 Da from the external environment into the interior of the compartment.
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Affiliation(s)
- Shiwei Zhang
- Institute of Advanced Energy, Kyoto University Uji, Kyoto, 6110011, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University Uji, Kyoto, 6110011, Japan
| | - Peng Lin
- Institute of Advanced Energy, Kyoto University Uji, Kyoto, 6110011, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University Uji, Kyoto, 6110011, Japan
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Fujiwara T, Kunisada T, Nakata E, Nishida K, Yanai H, Nakamura T, Tanaka K, Ozaki T. Advances in treatment of alveolar soft part sarcoma: an updated review. Jpn J Clin Oncol 2023; 53:1009-1018. [PMID: 37626447 PMCID: PMC10632598 DOI: 10.1093/jjco/hyad102] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/31/2023] [Indexed: 08/27/2023] Open
Abstract
Alveolar soft part sarcoma is a rare neoplasm of uncertain histogenesis that belongs to a newly defined category of ultra-rare sarcomas. The neoplasm is characterized by a specific chromosomal translocation, der (17) t(X; 17)(p11.2;q25), that results in ASPSCR1-TFE3 gene fusion. The natural history of alveolar soft part sarcoma describes indolent behaviour with slow progression in deep soft tissues of the extremities, trunk and head/neck in adolescents and young adults. A high rate of detection of distant metastasis at presentation has been reported, and the most common metastatic sites in decreasing order of frequency are the lung, bone and brain. Complete surgical resection remains the standard treatment strategy, whereas radiotherapy is indicated for patients with inadequate surgical margins or unresectable tumours. Although alveolar soft part sarcoma is refractory to conventional doxorubicin-based chemotherapy, monotherapy or combination therapy using tyrosine kinase inhibitors and immune checkpoint inhibitors have provided antitumor activity and emerged as new treatment strategies. This article provides an overview of the current understanding of this ultra-rare sarcoma and recent advancements in treatments according to the clinical stage of alveolar soft part sarcoma.
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Affiliation(s)
- Tomohiro Fujiwara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Toshiyuki Kunisada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Kenji Nishida
- Department of Pathology, Okayama University Hospital, Okayama, Japan
| | - Hiroyuki Yanai
- Department of Pathology, Okayama University Hospital, Okayama, Japan
| | - Tomoki Nakamura
- Department of Orthopaedic Surgery, Mie University, Tsu, Japan
| | - Kazuhiro Tanaka
- Department of Advanced Medical Sciences, Oita University, Yufu, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Fujiwara T, Kunisada T, Nakata E, Mitsuhashi T, Ozaki T, Kawai A. Factors associated with survival in patients with clear cell sarcoma. Bone Joint J 2023; 105-B:1216-1225. [PMID: 37907082 DOI: 10.1302/0301-620x.105b11.bjj-2022-0743.r3] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Aims Clear cell sarcoma (CCS) of soft-tissue is a rare melanocytic subtype of mesenchymal malignancy. The aim of this study was to investigate the clinical and therapeutic factors associated with increased survival, stratified by clinical stage, in order to determine the optimal treatment. Methods The study was a retrospective analysis involving 117 patients with histologically confirmed CCS, between July 2016 and November 2017, who were enrolled in the Bone and Soft Tissue Tumour Registry in Japan. Results The five- and ten-year survival rates were 41% (95% confidence interval (CI) 29 to 52) and 37% (95% CI 25 to 49), respectively. On multivariable analysis, the size of the tumour of > 10 cm (p = 0.006), lymph node metastasis at the time of diagnosis (p < 0.001), distant metastases at the time of diagnosis (p < 0.001), and no surgery for the primary tumour (p = 0.019) were independently associated with a poor survival. For N0M0 CCS (n = 68), the development of distant metastases was an independent prognostic factor for survival (early (< 12 months), hazard ratio (HR) 116.78 (95% CI 11.69 to 1,166.50); p < 0.001; late (> 12 months), HR 14.79 (95% CI 1.66 to 131.63); p = 0.016); neoadjuvant/adjuvant chemotherapy (p = 0.895) and/or radiotherapy (p = 0.216) were not significantly associated with survival. The five-year cumulative incidence of local recurrence was 19% (95% CI 8 to 35) and the size of the tumour was significantly associated with an increased rate of local recurrence (p = 0.012). For N1M0 CCS (n = 18), the risk of mortality was significantly lower in patients who underwent surgery for both the primary tumour and lymph node metastases (HR 0.03 (95% CI 0.00 to 0.56); p = 0.020). For M1 CCS (n = 31), excision of the primary tumour was independently associated with better survival (HR 0.26 (95% CI 0.09 to 0.76); p = 0.013). There was no significant difference in survival between the different types of systemic treatment (p = 0.523). Conclusion Complete excision of the primary tumour and lymph nodes is associated with a better survival in patients with CCS. Systemic treatment appears to provide limited benefits, demonstrating a pressing need for novel systemic agents.
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Affiliation(s)
- Tomohiro Fujiwara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Toshiyuki Kunisada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Toshiharu Mitsuhashi
- Centre for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Akira Kawai
- Department of Musculoskeletal Oncology, National Cancer Centre Hospital, Tokyo, Japan
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Nakata E, Fujiwara T, Kunisada T, Nakahara R, Katayama H, Itano T, Ozaki T. Results of resection of forearm soft tissue sarcoma. J Orthop Surg Res 2023; 18:599. [PMID: 37580775 PMCID: PMC10424346 DOI: 10.1186/s13018-023-04088-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/09/2023] [Indexed: 08/16/2023] Open
Abstract
PURPOSE Soft tissue sarcomas (STS) of the forearm are rare. We aim to assess their oncological and functional outcomes. METHODS We retrospectively evaluated 34 patients who underwent surgical excision for forearm STS at our institution between 1993 and 2020. We analyzed postoperative Musculoskeletal Tumor Society rating scale (MSTS) and local recurrence-free survival (LRFS), metastasis-free survival, and overall survival (OS) rates. The significance of the following variables was determined: age, sex, histology, tumor size, Fédération Nationale des Centres de Lutte contre le Cancer grade, American Joint Committee on Cancer stage, surgical margin, unplanned excision, metastases upon initial presentation, receipt of chemotherapy, and radiotherapy (RT). RESULTS The postoperative median MSTS score was 28. Bone resection or major nerve palsy was the only factor that influenced MSTS scores. The median MSTS scores in patients with or without bone resection or major nerve palsy were 24 and 29, respectively (P < 0.001). The 5-year LRFS rates was 87%. Univariate analysis revealed that the histological diagnosis of myxofibrosarcoma was the only factor that influenced LRFS (P = 0.047). The 5-year MFS rates was 71%. In univariate analysis, no factors were associated with MFS. The 5-year OS rates was 79%. Age was the only factor that influenced OS (P = 0.01). CONCLUSION In the treatment of forearm STS, reconstruction of the skin and tendon can compensate for function, while bone resection and major nerve disturbance cannot. Careful follow-up is important, especially in patients with myxofibrosarcoma, due to its likelihood of local recurrence.
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Affiliation(s)
- Eiji Nakata
- Department of Orthopedic Surgery, Okayama University Hospital, 2-5-1, Shikata-Cho, Okayama City, Okayama, 700-8558, Japan.
| | - Tomohiro Fujiwara
- Department of Orthopedic Surgery, Okayama University Hospital, 2-5-1, Shikata-Cho, Okayama City, Okayama, 700-8558, Japan
| | - Toshiyuki Kunisada
- Department of Orthopedic Surgery, Okayama University Hospital, 2-5-1, Shikata-Cho, Okayama City, Okayama, 700-8558, Japan
| | - Ryuichi Nakahara
- Department of Orthopedic Surgery, Okayama University Hospital, 2-5-1, Shikata-Cho, Okayama City, Okayama, 700-8558, Japan
| | - Haruyoshi Katayama
- Department of Orthopedic Surgery, Okayama University Hospital, 2-5-1, Shikata-Cho, Okayama City, Okayama, 700-8558, Japan
| | - Takuto Itano
- Department of Orthopedic Surgery, Okayama University Hospital, 2-5-1, Shikata-Cho, Okayama City, Okayama, 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopedic Surgery, Okayama University Hospital, 2-5-1, Shikata-Cho, Okayama City, Okayama, 700-8558, Japan
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Tokuhara T, Nakata E, Higashino M. Intracorporeal linear‑stapled gastroduodenostomy in totally laparoscopic distal gastrectomy for gastric cancer: Consideration of the intraoperative management of the duodenal wall between the transecting staple line and anastomotic staple line (Review). Oncol Lett 2023; 26:354. [PMID: 37545615 PMCID: PMC10398627 DOI: 10.3892/ol.2023.13940] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 06/07/2023] [Indexed: 08/08/2023] Open
Abstract
The first part of the duodenum consists of the intraperitoneal segment, called the duodenal bulb, and the retroperitoneal segment. Regarding the blood supplying the duodenal bulb, which is the portion utilized in anastomosing the duodenum and remnant stomach following distal gastrectomy, the arterial pedicles branching off from the gastroduodenal artery are reported to reach the posterior wall first and then spread over the anterior wall, where they anastomose. When performing intracorporeal linear-stapled gastroduodenostomy following totally laparoscopic distal gastrectomy, the blood supply of the duodenal wall between the transecting staple line and anastomotic staple line needs to be considered because both transection of the duodenal bulb and the gastroduodenostomy are performed using an endoscopic linear stapler and the duodenal wall between the staple lines can be ischemic after the anastomosis. Since it needs to be decided intraoperatively whether this duodenal site is preserved or removed, the present review discusses the technical differences among several procedures for intracorporeal linear-stapled gastroduodenostomy, classifying them into two groups on the basis of the intraoperative management of this duodenal site. When this site is preserved, the blood supply of the duodenal wall needs to be retained with certainty. On the other hand, when this site is removed, the ischemic portion of the duodenal wall needs to be identified and removed. Furthermore, in both groups, an adequate anastomotic area needs to be secured. In conclusion, surgeons need to be familiar with the anatomical features of the duodenal bulb, including its blood perfusion and shape, when carrying out intracorporeal linear-stapled gastroduodenostomy.
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Affiliation(s)
- Takaya Tokuhara
- Department of Gastroenterology, Otori Stomach and Intestines Hospital, Sakai, Osaka 593-8311, Japan
- Department of Gastroenterology, Hokusetsu-Miki Hospital, Suita, Osaka 564-0002, Japan
| | - Eiji Nakata
- Department of Gastroenterology, Otori Stomach and Intestines Hospital, Sakai, Osaka 593-8311, Japan
| | - Masayuki Higashino
- Department of Gastroenterology, Hokusetsu-Miki Hospital, Suita, Osaka 564-0002, Japan
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Shiwaku T, Ishida H, Tatebe Y, Tamefusa K, Ochi M, Fujiwara K, Kubo T, Nakata E, Washio K, Tsukahara H. A Boy Safely Treated with Tyrosine Kinase Inhibitors for Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia with Osteolysis. Acta Med Okayama 2023; 77:439-442. [PMID: 37635146 DOI: 10.18926/amo/65757] [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] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
A three-year-old boy with Philadelphia chromosome-positive B-cell precursor acute lymphoblastic leukemia (Ph+ALL) presented with an osteolytic lesion in his right upper arm. Tyrosine kinase inhibitors (TKIs) such as imatinib and dasatinib are an essential component throughout the course of treatment for Ph+ALL. However, TKIs are reported to affect the bone metabolism. In the treatment course of the current patient, the osteolytic lesion quickly improved despite the continuous use of TKIs, even during the concomitant use of corticosteroids. This suggests that TKIs can be safely given with concomitant corticosteroids to children with Ph+ALL, even when osteolytic lesions are present.
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Affiliation(s)
| | | | | | | | - Motoharu Ochi
- Department of Pediatrics, Okayama University Hospital
| | | | - Toshihide Kubo
- Department of Pediatrics, National Hospital Organization Okayama Medical Center
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Hospital
| | - Kana Washio
- Department of Pediatrics, Okayama University Hospital
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12
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Hirose H, Nakata E, Zhang Z, Shibano Y, Maekawa M, Morii T, Futaki S. Macropinoscope: Real-Time Simultaneous Tracking of pH and Cathepsin B Activity in Individual Macropinosomes. Anal Chem 2023. [PMID: 37468434 DOI: 10.1021/acs.analchem.3c01645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
A fluorescent sensor that allows simultaneous analysis of environmental factors in a limited cellular space is useful for understanding precise molecular interactions in live cells and their biological responses. Macropinocytosis is a ubiquitous endocytic pathway for massive uptake of extracellular fluids, resulting in the formation of macropinosomes. Although macropinocytosis may impact intracellular delivery and cancer proliferation, information on the intracellular behaviors of macropinosomes is limited. Here, we aimed to develop a macropinoscope, a sensor that simultaneously detects pH and cathepsin B activity in individual macropinosomes. A macropinosome-specific marker, dextran (70 kDa), was employed as a platform, onto which fluorescein, Oregon Green, and tetramethylrhodamine were loaded for ratiometric pH sensing and imaging. A cathepsin-B-cleavable peptide sequence bearing sulfo-Cy5 and the quencher BHQ-3 was also mounted; cleavage of the sequence was detected as an increase in sulfo-Cy5 fluorescence. A steep decrease in pH was observed 5-10 min after macropinosome formation, which was accompanied by an immediate increase in cathepsin B activity. Our design concept will lead to the development of other macropinoscopes for the simultaneous detection of other parameters in individual macropinosomes.
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Affiliation(s)
- Hisaaki Hirose
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Zhengxiao Zhang
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yuya Shibano
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Masashi Maekawa
- Division of Physiological Chemistry and Metabolism, Graduate School of Pharmaceutical Sciences, Keio University, Minato, Tokyo 105-8512, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Shiroh Futaki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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13
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Hiranaka T, Furumatsu T, Okazaki Y, Kintaka K, Higashihara N, Tamura M, Nakata E, Ozaki T. Accuracy of the newly developed Zimmer Biomet Root Aiming guide in tibial tunnel creation compared with that of conventional guides. Asia Pac J Sports Med Arthrosc Rehabil Technol 2023; 32:1-6. [PMID: 37092123 PMCID: PMC10120359 DOI: 10.1016/j.asmart.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 10/12/2022] [Accepted: 03/16/2023] [Indexed: 04/25/2023] Open
Abstract
Background/objective Accurate tibial tunnel creation is crucial for successful transtibial pullout repair of medial meniscus (MM) posterior root tears (MMPRTs). This study aimed to evaluate the accuracy of the newly developed Zimmer Biomet Root Aiming (ZeBRA) guide for transtibial pullout repair of MMPRTs. Methods This study included 50 patients who underwent transtibial pullout repair using the Unicorn Meniscal Root (UMR) (n = 25) and ZeBRA (n = 25) guides. The expected anatomic centre (AC) and tibial tunnel centre (TC) were assessed using three-dimensional postoperative computed tomography (CT) images. The expected AC was defined as the centre of the circle tangent to the triangular footprint of the MM posterior root. The expected AC and TC on the tibial surface were assessed using the percentage-based posterolateral location on the tibial surface. The absolute distance between the AC and TC (mm) was evaluated. Results The mean AC location was 76.1% ± 3.1% posterior and 40.8% ± 2.1% lateral, whereas the mean TC location was 76.7% ± 5.3% posterior and 37.2% ± 3.6% lateral using the UMR guide and 75.8% ± 3.1% posterior and 36.5% ± 2.4% lateral using the ZeBRA guide. No significant difference was observed in the absolute distance between the UMR and ZeBRA guides (3.9 ± 1.4 and 3.8 ± 1.3 mm, respectively; p = 0.617). Conclusions The newly developed ZeBRA guide allows accurate tibial tunnel creation, and its accuracy is comparable to that of the conventional UMR guide. Tibial tunnels were created at optimal positions using both guides, and the choice of the guide would depend on the surgeon's preference.
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Affiliation(s)
- Takaaki Hiranaka
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
- Department of Orthopaedic Surgery, Ako Central Hospital, 52‑6 Sohmon‑cho, Ako, Hyogo 678‑0241, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
- Corresponding author. Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan.
| | - Yuki Okazaki
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
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14
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Huang R, Yamamoto T, Nakata E, Ozaki T, Kurozumi K, Wei F, Tomizawa K, Fujimura A. CDKAL1 Drives the Maintenance of Cancer Stem-Like Cells by Assembling the eIF4F Translation Initiation Complex. Adv Sci (Weinh) 2023; 10:e2206542. [PMID: 36786012 PMCID: PMC10131790 DOI: 10.1002/advs.202206542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/06/2023] [Indexed: 06/18/2023]
Abstract
Cancer stem-like cells (CSCs) have a unique translation mode, but little is understood about the process of elongation, especially the contribution of tRNA modifications to the maintenance of CSCs properties. Here, it is reported that, contrary to the initial aim, a tRNA-modifying methylthiotransferase CDKAL1 promotes CSC-factor SALL2 synthesis by assembling the eIF4F translation initiation complex. CDKAL1 expression is upregulated in patients with worse prognoses and is essential for maintaining CSCs in rhabdomyosarcoma (RMS) and common cancers. Translatome analysis reveals that a group of mRNAs whose translation is CDKAL1-dependent contains cytosine-rich sequences in the 5' untranslated region (5'UTR). Mechanistically, CDKAL1 promotes the translation of such mRNAs by organizing the eIF4F translation initiation complex. This complex formation does not require the enzyme activity of CDKAL1 but requires only the NH2 -terminus domain of CDKAL1. Furthermore, sites in CDKAL1 essential for forming the eIF4F complex are identified and discovered candidate inhibitors of CDKAL1-dependent translation.
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Affiliation(s)
- Rongsheng Huang
- Department of Cellular PhysiologyOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaOkayama700‐8558Japan
| | - Takahiro Yamamoto
- Department of Molecular PhysiologyKumamoto University Faculty of Life SciencesKumamotoKumamoto860‐0811Japan
| | - Eiji Nakata
- Department of Orthopedic SurgeryOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaOkayama700‐8558Japan
| | - Toshifumi Ozaki
- Department of Orthopedic SurgeryOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaOkayama700‐8558Japan
| | - Kazuhiko Kurozumi
- Department of NeurosurgeryHamamatsu University School of MedicineHamamatsuShizuoka431‐3192Japan
| | - Fanyan Wei
- Department of Modomics Biology and MedicineInstitute of Development, Aging and CancerTohoku UniversitySendaiMiyagi980‐8575Japan
| | - Kazuhito Tomizawa
- Department of Molecular PhysiologyKumamoto University Faculty of Life SciencesKumamotoKumamoto860‐0811Japan
| | - Atsushi Fujimura
- Department of Cellular PhysiologyOkayama University Graduate School of Medicine, Dentistry, and Pharmaceutical SciencesOkayamaOkayama700‐8558Japan
- Neutron Therapy Research CenterOkayama UniversityOkayamaOkayama700‐8558Japan
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15
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Takao T, Sato M, Fujisawa Y, Toyoda E, Yamada D, Hitsumoto Y, Nakata E, Ozaki T, Takarada T. A novel chondrocyte sheet fabrication using human-induced pluripotent stem cell-derived expandable limb-bud mesenchymal cells. Stem Cell Res Ther 2023; 14:34. [PMID: 36829201 PMCID: PMC9960196 DOI: 10.1186/s13287-023-03252-4] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 02/09/2023] [Indexed: 02/26/2023] Open
Abstract
BACKGROUND Cell sheet fabrication for articular cartilage regenerative medicine necessitates a large number of chondrocytes of consistent quality as a cell source. Previously, we have developed human-induced pluripotent stem cell (iPSC)-derived expandable PRRX1+ limb-bud mesenchymal cells (ExpLBM) with stable expansion and high chondrogenic capacity, while in this study; our ExpLBM technology was combined with cell sheet engineering to assess its potential as a stable cell source for articular cartilage regeneration. METHODS ExpLBM cells derived from human-induced pluripotent stem cells (hiPSCs), including 414C2 and Ff-KVs09 (HLA homozygous), were seeded onto a culture plate and two-dimensional chondrogenic induction (2-DCI) was initiated. After 2-DCI, ExpLBM-derived chondrocytes were stripped and transferred to temperature-responsive culture inserts and the chondrocyte sheets were histologically examined or transplanted into osteochondral knee defects of immunodeficient rats. RESULTS Immunohistochemistry revealed that ExpLBM-derived cell sheets were positive for Safranin O, COL2, and ACAN but that they were negative for COL1 and RUNX2. Furthermore, the engrafted tissues in osteochondral knee defects in immunodeficient rats were stained with SafO, human VIMENTIN, ACAN, and COL2. CONCLUSIONS The present study is the first to report the chondrocyte sheet fabrication with hiPSC-derived cell source. hiPSC-derived ExpLBM would be a promising cell source for cell sheet technology in articular cartilage regenerative medicine.
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Affiliation(s)
- Tomoka Takao
- grid.261356.50000 0001 1302 4472Department of Regenerative Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Masato Sato
- grid.265061.60000 0001 1516 6626Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Isehara, Japan
| | - Yuki Fujisawa
- grid.261356.50000 0001 1302 4472Department of Regenerative Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Eriko Toyoda
- grid.265061.60000 0001 1516 6626Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, Isehara, Japan
| | - Daisuke Yamada
- grid.261356.50000 0001 1302 4472Department of Regenerative Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Yukio Hitsumoto
- grid.261356.50000 0001 1302 4472Department of Regenerative Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558 Japan
| | - Eiji Nakata
- grid.261356.50000 0001 1302 4472Department Orthopedic Surgery, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, 700-8558 Japan
| | - Toshifumi Ozaki
- grid.261356.50000 0001 1302 4472Department Orthopedic Surgery, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, 700-8558 Japan
| | - Takeshi Takarada
- Department of Regenerative Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan.
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16
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Nakata E, Nakahara R, Katayama H, Itano T, Sugihara S, Ozaki T. Vertebral body collapse after radiotherapy for spinal metastases. Oncol Lett 2023; 25:109. [PMID: 36817035 PMCID: PMC9932627 DOI: 10.3892/ol.2023.13695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 12/30/2022] [Indexed: 02/05/2023] Open
Abstract
Spinal metastases are common in patients with advanced stages of cancer and frequently cause vertebral body collapse (VBC). Although conventional radiotherapy (RT) is used for spinal metastases, the rates of occurrence of new VBC and progression of VBC at RT initiation have not been fully investigated. The present retrospective study assessed VBC and its associated risk factors after RT over time and evaluated new VBC and progression of VBC in patients who presented with VBC at RT initiation. The study evaluated 177 patients who received RT for vertebral metastases without paralysis between July 2012 and November 2016. Radiological responses of the irradiated vertebrae were assessed using computed tomography. Follow-up assessments were performed at RT initiation and 1, 2, 3, 4 and 6 months after RT. New VBC occurred in 12% of patients with no prior VBC within 1 month of RT. Multivariate analysis revealed that numeric rating scale (NRS) score (≥4) [relative risk (RR), 27.1; 95% confidence interval (CI), 1.86 to 394.9; P=0.016] was associated with the occurrence of new VBC at the 1 month follow-up time point. VBC progression occurred in 51% of the patients with collapse at RT initiation. Multivariate analysis revealed that bone quality (lytic metastases) (RR, 3.1; 95% CI, 1.28 to 7.70; P=0.013), NRS score (≥4) (RR, 3.0; 95% CI, 1.18 to 7.45; P=0.021) and tumor involvement of posterolateral elements of the spine (RR, 2.7; 95% CI, 1.03 to 7.29; P=0.04) were associated with the progression of VBC at the 1 month follow-up time point. The current study findings suggested that clinicians should pay attention to the factors that predict the occurrence of new VBC and VBC progression to ensure proper evaluation of conservative treatment effectiveness and facilitate the determination of patients who need close monitoring.
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Affiliation(s)
- Eiji Nakata
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama, Okayama 700-8558, Japan,Correspondence to: Dr Eiji Nakata, Department of Orthopedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Okayama, Okayama 700-8558, Japan, E-mail:
| | - Ryuichi Nakahara
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama, Okayama 700-8558, Japan
| | - Haruyoshi Katayama
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama, Okayama 700-8558, Japan
| | - Takuto Itano
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama, Okayama 700-8558, Japan
| | - Shinsuke Sugihara
- Department of Orthopedic Surgery, Shikoku Cancer Center, Matsuyama, Ehime 791-0280, Japan
| | - Toshifumi Ozaki
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama, Okayama 700-8558, Japan
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17
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Tomita K, Iguchi T, Matsui Y, Uka M, Nakata E, Hiraki T. Navicular Bone Fracture after Radiofrequency Ablation in a Patient with Osteoid Osteoma. Acta Med Okayama 2023; 77:81-84. [PMID: 36849150 DOI: 10.18926/amo/64366] [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] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Osteoid osteoma (OO) is a benign bone tumor that presents with nocturnal pain. Computed tomography (CT)- guided radiofrequency ablation (RFA) has been widely performed for OO, and major adverse events post-RFA are rare. We report a case of OO in the left navicular bone of a 15-year-old male. He underwent RFA for OO, and the pain improved temporarily. At the 1-month follow-up, the patient complained of left foot pain, and a CT examination revealed a fracture of the ablated navicular bone. Fractures are rare but must be taken into account after bone RFA.
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Affiliation(s)
- Koji Tomita
- Department of Radiology, Okayama University Hospital
| | - Toshihiro Iguchi
- Department of Radiology, Okayama University Hospital.,Department of Radiological Technology, Faculty of Health Sciences, Okayama University
| | - Yusuke Matsui
- Department of Radiology, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
| | - Mayu Uka
- Department of Radiology, Okayama University Hospital
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Hospital
| | - Takao Hiraki
- Department of Radiology, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences
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18
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Konishi H, Nakata E, Komatsubara F, Morii T. Controlled Assembly of Fluorophores inside a Nanoliposome. Molecules 2023; 28:molecules28020911. [PMID: 36677968 PMCID: PMC9864194 DOI: 10.3390/molecules28020911] [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] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/13/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023]
Abstract
Cellular compartmentalization plays an essential role in organizing the complex and multiple biochemical reactions in the cell. An artificial compartment would provide powerful strategies to develop new biochemical tools for material production and diagnosis, but it is still a great challenge to synthesize the compartments that encapsulate materials of interest while controlling their accurate locations, numbers, and stoichiometry. In this study, we evaluated chemical characteristics of a liposome-encapsulated compartment, which has great potential to locate various materials of interest with precise control of their locations and numbers in the compartment. A nanoliposome was constructed inside a ring-shaped DNA origami skeleton according to the method of Yang et al., and further equipped with a double-stranded DNA platform to assemble molecules of interest in the nanoliposome. Upon formation of the nanoliposome, a pH-sensitive fluorophore on the bridged platform showed little or no response to the pH change of the outer buffer, ensuring that the molecules assembled on the platform are effectively shielded from the outer environment. The ring-shaped DNA skeleton equipped with a double-stranded DNA platform allows spatial assembly of several functional molecules inside the nanoliposome to isolate them from the outer environment.
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19
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Kakimoto Y, Ikemura R, Imai Y, Tohnai N, Yamazaki S, Nakata E, Takashima H. Circularly polarised luminescence from excimer emission of anthracene derivatives complexed with γ-cyclodextrin in the solid state. RSC Adv 2023; 13:1914-1922. [PMID: 36712637 PMCID: PMC9832359 DOI: 10.1039/d2ra07971b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 01/04/2023] [Indexed: 01/12/2023] Open
Abstract
In this study, we report circularly polarised luminescence (CPL)-active molecules that exhibit high fluorescence quantum yields in the solid state. We developed anthracene derivatives with substituents at the 9 and 10 positions, such as ethyl(anthracene-9-carbonyl)glycinate (9AnGlyEt), N-butylanthracene-9-carboxamide (9AnB), N-benzylanthracene-9-carboxamide (9AnPh), and N 9,N 10-dibutylanthracene-9,10-dicarboxamide (9,10AnB). These compounds were complexed with γ-cyclodextrin (γ-CD) in the solid state by grinding, and the fluorescence properties of the resulting γ-CD complexes were investigated. The fluorescence quantum yields were enhanced after γ-CD complexation. Among the prepared γ-CD complexes, 9AnGlyEt/γ-CD had the highest fluorescence quantum yield (Φ f = 0.35), which was enhanced up to 5.8 times after γ-CD complexation. This was probably due to the interaction between the two anthracene molecules in the γ-CD cavity, which prevented fluorescence quenching caused by aggregation of the compounds. Positive CPL of g CPL = 1.3 × 10-3 was observed for 9AnGlyEt/γ-CD based on its excimer emission.
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Affiliation(s)
- Yuna Kakimoto
- Department of Chemistry, Biology and Environmental Science, Faculty of Science, Nara Women's UniversityNara 630-8506Japan
| | - Ryoya Ikemura
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai UniversityOsaka 577-8502Japan
| | - Yoshitane Imai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai UniversityOsaka 577-8502Japan
| | - Norimitsu Tohnai
- Department of Applied Chemistry, Graduate School of Engineering, Osaka UniversityOsaka 565-0871Japan
| | - Shoko Yamazaki
- Department of Chemistry, Nara University of EducationNara 630-8528Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto UniversityKyoto 611-0011Japan
| | - Hiroshi Takashima
- Department of Chemistry, Biology and Environmental Science, Faculty of Science, Nara Women's UniversityNara 630-8506Japan
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20
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Akezaki Y, Nakata E, Kikuuchi M, Tominaga R, Kurokawa H, Okamoto M, Ozaki T, Aogi K, Ohsumi S, Sugihara S. Characteristics of Postoperative Patients with Breast Cancer Aged 65 Years and Older. Curr Oncol 2023; 30:673-680. [PMID: 36661701 PMCID: PMC9858311 DOI: 10.3390/curroncol30010052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/22/2022] [Accepted: 01/03/2023] [Indexed: 01/07/2023] Open
Abstract
Objective: This study aimed to compare postoperative patients with breast cancer aged ≥65 years with those aged <65 years and clarify the characteristics of postoperative patients with breast cancer aged ≥65. Methods: In total, 376 patients in whom we were able to evaluate survey items one month after surgery were included in the study. Comorbidity, including diabetes mellitus and hypertension, shoulder range of motion (ROM), upper-limb function, and psychological problems, was evaluated. Results: Hypertension and diabetes mellitus were significantly higher in patients aged ≥65 years (the elderly group) than in those aged <65 years (the non-elderly group) (p < 0.05). Preoperative shoulder flexion ROM was significantly restricted in the elderly group compared with the non-elderly group (p < 0.05). Preoperative shoulder abduction ROM was significantly restricted in the elderly group compared with the non-elderly group (p < 0.05). At one month after surgery, upper-limb function was more impaired in the non-elderly group than in the elderly group (p < 0.05). In both groups, both ROM and upper-limb function were significantly impaired one month after surgery compared with before surgery (p < 0.05). Conclusions: Postoperative patients with breast cancer aged ≥65 years should be careful about risk management and intervention during rehabilitation. Preoperative evaluation of shoulder ROM should be performed because patients aged ≥65 years have limited ROM before surgery.
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Affiliation(s)
- Yoshiteru Akezaki
- Division of Physical Therapy, Kochi Professional University of Rehabilitation, Kochi 781-1102, Japan
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama 700-8558, Japan
| | - Masato Kikuuchi
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Ehime 791-0280, Japan
| | - Ritsuko Tominaga
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Ehime 791-0280, Japan
| | - Hideaki Kurokawa
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Ehime 791-0280, Japan
| | - Masaki Okamoto
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Ehime 791-0280, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama 700-8558, Japan
| | - Kenjiro Aogi
- Department of Breast Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama 791-0280, Japan
| | - Shozo Ohsumi
- Department of Breast Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama 791-0280, Japan
| | - Shinsuke Sugihara
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Ehime 791-0280, Japan
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21
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Nakata E, Dinh H, Lin P, Morii T. Enzyme Cascade Reactions on DNA Origami Scaffold. Methods Mol Biol 2023; 2639:275-299. [PMID: 37166723 DOI: 10.1007/978-1-0716-3028-0_16] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The protocols for constructing, characterizing, and analyzing enzyme cascade reaction systems on the DNA scaffold are described. Two-step and three-step enzyme cascade reactions were adapted from the xylose metabolic pathway as the example of natural metabolic pathway and were assembled on the DNA scaffold by using the DNA binding adaptors.
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Affiliation(s)
- Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Huyen Dinh
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Peng Lin
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto, 611-0011, Japan.
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22
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Hirose K, Kuwahara M, Nakata E, Tetsunaga T, Yamada K, Saiga K, Takigawa M, Ozaki T, Kubota S, Hattori T. Elevated Expression of CCN3 in Articular Cartilage Induces Osteoarthritis in Hip Joints Irrespective of Age and Weight Bearing. Int J Mol Sci 2022; 23:ijms232315311. [PMID: 36499638 PMCID: PMC9738275 DOI: 10.3390/ijms232315311] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 11/29/2022] [Accepted: 12/02/2022] [Indexed: 12/11/2022] Open
Abstract
Osteoarthritis (OA) occurs not only in the knee but also in peripheral joints throughout the whole body. Previously, we have shown that the expression of cellular communication network factor 3 (CCN3), a matricellular protein, increases with age in knee articular cartilage, and the misexpression of CCN3 in cartilage induces senescence-associated secretory phenotype (SASP) factors, indicating that CCN3 promotes cartilage senescence. Here, we investigated the correlation between CCN3 expression and OA degenerative changes, principally in human femoral head cartilage. Human femoral heads obtained from patients who received total hip arthroplasty were categorized into OA and femoral neck fracture (normal) groups without significant age differences. Gene expression analysis of RNA obtained from femoral head cartilage revealed that CCN3 and MMP-13 expression in the non-weight-bearing part was significantly higher in the OA group than in the normal group, whereas the weight-bearing OA parts and normal cartilage showed no significant differences in the expression of these genes. The expression of COL10A1, however, was significantly higher in weight-bearing OA parts compared with normal weight-bearing parts, and was also higher in weight-bearing parts compared with non-weight-bearing parts in the OA group. In contrast, OA primary chondrocytes from weight-bearing parts showed higher expression of CCN3, p16, ADAMTS4, and IL-1β than chondrocytes from the corresponding normal group, and higher ADAMTS4 and IL-1β in the non-weight-bearing part compared with the corresponding normal group. Acan expression was significantly lower in the non-weight-bearing group in OA primary chondrocytes than in the corresponding normal chondrocytes. The expression level of CCN3 did not show significant differences between the weight-bearing part and non-weight-bearing part in both OA and normal primary chondrocytes. Immunohistochemical analysis showed accumulated CCN3 and aggrecan neoepitope staining in both the weight-bearing part and non-weight-bearing part in the OA group compared with the normal group. The CCN3 expression level in cartilage had a positive correlation with the Mankin score. X-ray analysis of cartilage-specific CCN3 overexpression mice (Tg) revealed deformation of the femoral and humeral head in the early stage, and immunohistochemical analysis showed accumulated aggrecan neoepitope staining as well as CCN3 staining and the roughening of the joint surface in Tg femoral and humeral heads. Primary chondrocytes from the Tg femoral head showed enhanced expression of Ccn3, Adamts5, p16, Il-6, and Tnfα, and decreased expression of Col2a1 and -an. These findings indicate a correlation between OA degenerative changes and the expression of CCN3, irrespective of age and mechanical loading. Furthermore, the Mankin score indicates that the expression level of Ccn3 correlates with the progression of OA.
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Affiliation(s)
- Kazuki Hirose
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Miho Kuwahara
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Tomonori Tetsunaga
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Kazuki Yamada
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Kenta Saiga
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Masaharu Takigawa
- Advanced Research Center for Oral and Craniofacial Sciences, Okayama University Dental School/Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Satoshi Kubota
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Takako Hattori
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
- Correspondence: ; Tel.: +81-86-235-6646; Fax: +81-86-235-6649
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Nakata E, Gerelbaatar K, Komatsubara F, Morii T. Stimuli-Responsible SNARF Derivatives as a Latent Ratiometric Fluorescent Probe. Molecules 2022; 27:molecules27217181. [PMID: 36364006 PMCID: PMC9658230 DOI: 10.3390/molecules27217181] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/09/2022] [Accepted: 10/17/2022] [Indexed: 11/23/2022] Open
Abstract
Fluorescence imaging is a powerful technique for continuous observation of dynamic intracellular processes of living cells. Fluorescent probes bearing a fluorescence switching property associated with a specific recognition or reaction of target biomolecule, that is, stimuli-responsibility, are important for fluorescence imaging. Thus, fluorescent probes continue to be developed to support approaches with different design strategies. When compared with simple intensity-changing fluorescent probes, ratiometric fluorescent probes typically offer the advantage of less sensitivity to errors associated with probe concentration, photobleaching, and environmental effects. For intracellular usage, ratiometric fluorescent probes based on small molecules must be loaded into the cells. Thus, probes having intrinsic fluorescence may obscure a change in intracellular signal if the background fluorescence of the remaining extracellular probes is high. To overcome such disadvantages, it is necessary to minimize the extracellular background fluorescence of fluorescent probes. Here, the design strategy of the latent ratiometric fluorescent probe for wash-free ratiometric imaging using a xanthene dye seminapthorhodafluor (SNARF) as the scaffold of fluorophore is discussed.
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Lin P, Yang H, Nakata E, Morii T. Mechanistic Aspects for the Modulation of Enzyme Reactions on the DNA Scaffold. Molecules 2022; 27:molecules27196309. [PMID: 36234845 PMCID: PMC9572797 DOI: 10.3390/molecules27196309] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 12/03/2022] Open
Abstract
Cells have developed intelligent systems to implement the complex and efficient enzyme cascade reactions via the strategies of organelles, bacterial microcompartments and enzyme complexes. The scaffolds such as the membrane or protein in the cell are believed to assist the co-localization of enzymes and enhance the enzymatic reactions. Inspired by nature, enzymes have been located on a wide variety of carriers, among which DNA scaffolds attract great interest for their programmability and addressability. Integrating these properties with the versatile DNA–protein conjugation methods enables the spatial arrangement of enzymes on the DNA scaffold with precise control over the interenzyme distance and enzyme stoichiometry. In this review, we survey the reactions of a single type of enzyme on the DNA scaffold and discuss the proposed mechanisms for the catalytic enhancement of DNA-scaffolded enzymes. We also review the current progress of enzyme cascade reactions on the DNA scaffold and discuss the factors enhancing the enzyme cascade reaction efficiency. This review highlights the mechanistic aspects for the modulation of enzymatic reactions on the DNA scaffold.
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Nakata E, Fujiwara T, Katayama H, Itano T, Kunisada T, Ozaki T. Effect of bacterium in the malignant wounds of soft tissue sarcoma. Oncol Lett 2022; 24:345. [PMID: 36072006 PMCID: PMC9434720 DOI: 10.3892/ol.2022.13465] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/08/2022] [Indexed: 11/25/2022] Open
Abstract
Malignant wounds (MWs) are rare skin lesions, which accompany ulceration, necrosis and infection caused by infiltration or damage by malignant tumor. The present study aimed to investigate the bacterial etiology implicated in MW in soft tissue sarcoma (STS), and the effectiveness of culture-guided perioperative antibacterial administration. A retrospective evaluation was conducted on medical records of patients who presented with MW between 2006 and 2020. A total of seven patients were included in the present study, in whom all tumors were relatively large (>5 cm) and high-grade. Subsequently, five patients underwent limb-sparing surgery, and three patients had distant metastases with a 5-year overall survival of 71%. Preoperative microbiological sampling from the wound identified 11 different bacterial strains in five patients. The infections were polymicrobial with an average of 2.6 strains isolated per patient (1 aerobic, 1.6 anaerobic bacteria). They were predominantly methicillin-sensitive Staphylococcus aureus. Patients with MWs from STS reported symptoms, including bleeding (71%), exudation (71%) and malodorous wound (43%) at the initial presentation; these completely resolved after surgery. All but one patient reported pain at the MW site with an average numeric rating scale of 4.4 at presentation that decreased to 1.4 (P=0.14) and 0.6 (P=0.04) one and two weeks after surgery, respectively. The patients had elevated C-reactive protein (71%), anemia (57%), low albumin (86%) and renal/liver dysfunction (14–29%). One patient was diagnosed with sepsis. Surgical resection afforded symptomatic relief and resolution of abnormal laboratory values. Although selected antibiotics were administered in four patients based on the preoperative antibiotic sensitivity test, surgical site infection (SSI) occurred in three patients. Therefore, the effectiveness of the selected antibiotics based on the results of the preoperative culture in preventing SSI needs to be investigated in the future. In conclusion, physicians should keep in mind that although surgical resection can improve the symptoms and abnormal values in laboratory examination form MW, it is accompanied with a high rate of SSI and poor prognosis.
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Affiliation(s)
- Eiji Nakata
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama, Okayama 700‑8558, Japan
| | - Tomohiro Fujiwara
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama, Okayama 700‑8558, Japan
| | - Haruyoshi Katayama
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama, Okayama 700‑8558, Japan
| | - Takuto Itano
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama, Okayama 700‑8558, Japan
| | - Toshiyuki Kunisada
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama, Okayama 700‑8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama, Okayama 700‑8558, Japan
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Fujiwara T, Nakata E, Kunisada T, Ozaki T, Kawai A. Alveolar soft part sarcoma: progress toward improvement in survival? A population-based study. BMC Cancer 2022; 22:891. [PMID: 35971085 PMCID: PMC9377116 DOI: 10.1186/s12885-022-09968-5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 08/01/2022] [Indexed: 11/18/2022] Open
Abstract
Background Alveolar soft part sarcoma (ASPS) is a rare histological subtype of soft-tissue sarcoma, which remains refractory to conventional cytotoxic chemotherapy. We aimed to characterize ASPS and investigate whether the oncological outcome has improved over the past decade. Methods One hundred and twenty patients with newly diagnosed ASPS from 2006 to 2017, identified from the Bone and Soft-Tissue Tumor Registry in Japan, were analyzed retrospectively. Results The study cohort comprised 34 (28%) patients with localized ASPS and 86 (72%) with metastatic disease at presentation. The 5-year disease-specific survival (DSS) was 68% for all patients and 86% and 62% for localized and metastatic disease, respectively (p = 0.019). Metastasis at presentation was the only adverse prognostic factor for DSS (hazard ratio [HR]: 7.65; p = 0.048). Patients who were > 25 years (80%; p = 0.023), had deep-seated tumors (75%; p = 0.002), and tumors > 5 cm (5–10 cm, 81%; > 10 cm, 81%; p < 0.001) were more likely to have metastases at presentation. In patients with localized ASPS, adjuvant chemotherapy or radiotherapy did not affect survival, and 13 patients (45%) developed distant metastases in the lung (n = 12, 92%) and brain (n = 2, 15%). In patients with metastatic ASPS (lung, n = 85 [99%]; bone, n = 12 [14%]; and brain n = 9 [11%]), surgery for the primary or metastatic site did not affect survival. Prolonged survival was seen in patients who received pazopanib treatment (p = 0.045), but not in those who received doxorubicin-based cytotoxic chemotherapy. Overall, improved DSS for metastatic ASPS has been observed since 2012 (5-year DSS, from 58 to 65%) when pazopanib was approved for advanced diseases, although without a statistically significant difference (p = 0.117). Conclusion The national study confirmed a unique feature of ASPS with frequent metastasis to the lung and brain but an indolent clinical course. An overall trend toward prolonged survival after the introduction of targeted therapy encourages continuous efforts to develop novel therapeutic options for this therapeutically resistant soft-tissue sarcoma.
Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09968-5.
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Affiliation(s)
- Tomohiro Fujiwara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Japan.
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Japan
| | - Toshiyuki Kunisada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Japan
| | - Akira Kawai
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, Japan
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Zhang Z, Nakata E, Shibano Y, Morii T. FRET-based cathepsin probes for simultaneous detection of cathepsin B and D activities. Chembiochem 2022; 23:e202200319. [PMID: 35929606 DOI: 10.1002/cbic.202200319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/05/2022] [Indexed: 11/09/2022]
Abstract
Fluorescent cathepsin probes were prepared by modification of peptidic substrates for cathepsin B (CTSB) and cathepsin D (CTSD) with FRET pairs. Fluorophores with distinguishable emission characteristics were applied to CTSB and CTSD probes with their appropriate quenchers to simultaneously monitor the activity of CTSB and/or CTSD. Conjugation of both the CTSB and CTSD probes with short single-stranded DNA drastically increased their reactivity to cathepsins over the parent probes possibly by improving their solubility. The activity of CTSB and CTSD were simultaneously detected by using these orthogonal FRET-based cathepsin probes.
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Affiliation(s)
- Zhengxiao Zhang
- Kyoto University: Kyoto Daigaku, Institute of Advanced Energy, Gokasyo, 611-0011, Uji, JAPAN
| | - Eiji Nakata
- Kyoto University: Kyoto Daigaku, Institute of Advanced Energy, Gokasyo, 611-0011, Uji, JAPAN
| | - Yuya Shibano
- Kyoto University - Uji Campus: Kyoto Daigaku - Uji Campus, Institute of Advanced energy, Gokasyo, 6110011, Uji, JAPAN
| | - Takashi Morii
- Kyoto University: Kyoto Daigaku, Institute of Advanced Energy, Gokasyo, 611-0011, Uji, JAPAN
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Nakata E, Kawai H, Fujiwara T, Kunisada T, Inoue H, Futagawa M, Katayama H, Itano T, Ozaki T. Clinicopathological and histological analysis of secondary malignant giant cell tumors of bone without radiotherapy. Oncol Lett 2022; 24:319. [PMID: 35949597 PMCID: PMC9353873 DOI: 10.3892/ol.2022.13439] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 06/08/2022] [Indexed: 11/24/2022] Open
Abstract
Giant cell tumor of bone (GCTB) is an intermediate bone tumor that rarely undergoes malignant transformation. Secondary malignant GCTB (SMGCTB) is defined as a lesion in which high-grade sarcoma occurs at the site of previously treated GCTB. The present study retrospectively reviewed the medical records of patients with GCTB treated at Okayama University Hospital between April 1986 and April 2020. The clinicopathological and histological features of patients with SMGCTB without prior radiotherapy were investigated. A total of three patients (4%) with SMGCTB were detected, and the tumor sites were the distal ulna, distal femur and sacrum. Two of the patients had been treated with curettage and bone graft, and one had been treated with denosumab. In all cases, the lesions were made up of two components, the conventional GCTB component and the malignant component. The Ki67 labeling index was higher in the malignant components of SMGCTB and metastatic lesions compared with that in primary and recurrent conventional GCTB, or the conventional GCTB component of SMGCTB. Moreover, p53 expression was higher in these same components in patients who underwent curettage and bone grafting; however, there was no difference in the patient that received denosumab treatment. In this patient, clinical cancer genomic profiling revealed loss of CDKN2A, CDKN2B and MTAP expression. All three patients developed distant metastasis. The patients with SMGCTB in the ulna and femur died 13 and 54 months after detection of malignant transformation, respectively. The patient with SMGCTB in the sacrum received carbon-ion radiotherapy to the sacrum and pazopanib; the treatment was effective and the patient was alive at the last follow-up 3 years later. In conclusion, p53 may be associated with malignant transformation in GCTB. Future studies should investigate the association of between denosumab treatment and malignant transformation, as well as molecular targeted therapy to improve the clinical outcomes of SMGCTB.
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Affiliation(s)
- Eiji Nakata
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama 700‑8558, Japan
| | - Hotaka Kawai
- Department of Oral Pathology and Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700‑8558, Japan
| | - Tomohiro Fujiwara
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama 700‑8558, Japan
| | - Toshiyuki Kunisada
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama 700‑8558, Japan
| | - Hirofumi Inoue
- Department of Pathology, Okayama University Hospital, Okayama 700‑8558, Japan
| | - Mashu Futagawa
- Department of Clinical Genomic Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700‑8558, Japan
| | - Haruyoshi Katayama
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama 700‑8558, Japan
| | - Takuto Itano
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama 700‑8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopedic Surgery, Okayama University Hospital, Okayama 700‑8558, Japan
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Tsukushi S, Nishida Y, Hirose T, Nakata E, Nakagawa R, Nakamura T, Imanishi J, Nagano A, Tamiya H, Ueda T. Short-term clinical outcomes of Kyocera Modular Limb Salvage System designed cementless stems for the endoprosthetic reconstruction of lower extremities: a Japanese Musculoskeletal Oncology Group multi-institutional study. BMC Cancer 2022; 22:781. [PMID: 35842696 PMCID: PMC9288729 DOI: 10.1186/s12885-022-09873-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 07/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The high rate of aseptic loosening of cemented stems has led to their frequent use in endoprosthetic reconstruction. However, problems, such as stem breakage and stress shielding at the insertion site, remain. The Japanese Musculoskeletal Oncology Group (JMOG) has developed Kyocera Modular Limb Salvage System (KMLS) cementless stems with a unique tapered press-fit and short fixation design. This study aimed to clarify the short-term postoperative outcomes of this prosthesis and validate the stem design. METHODS One hundred cases of KMLS cementless stems (51 male patients; median age, 49 years; mean follow-up period, 35 months), with a minimum follow-up of 2 years, for the proximal femur (PF), distal femur (DF), and proximal tibia were prospectively registered for use. Prosthesis survival, complication rates, postoperative functional, and radiographical evaluation were analyzed. Complications or failures after insertion of the KMLS endoprostheses were classified into five types and functional results were analyzed according to the MSTS scoring system at postoperative 1 year. The diaphyseal interface and anchorage were graded by the ISOLS system at postoperative 2 years. RESULTS The overall prosthesis survival rates at 2 and 4 years were 88.2 and 79.6%, respectively. The prosthesis-specific survival rate excluding infection and tumor recurrence was 90.2 and 87.9%, respectively. Younger age (p = 0.045) and primary tumor (p = 0.057) were associated with poor prognosis of prosthesis-specific survival excluding infection and tumor recurrence. Complications were observed in 31 patients, 13 patients underwent revision surgery. The mean MSTS functional score at 1 year postoperatively was 68%. Early implant loosening was significantly more common in the DF (p = 0.006) and PF/DF straight stem (p = 0.038). The ISOLS radiographic evaluation at 2 years after surgery revealed good bone remodeling and anchorage in most cases (bone remodeling: 90% / excellent and good, anchorage: 97% / excellent and good). CONCLUSIONS Tumor endoprosthesis long-term fixation to the diaphysis of the lower extremity remains challenging. The KMLS cementless stem with a unique tapered press fit design showed good short-term results in maintaining bone stock. To prevent early loosening, a curved stem should be used in PF and DF, but long-term follow-up is necessary.
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Affiliation(s)
- Satoshi Tsukushi
- Department of Orthopaedic Surgery, Aichi Cancer Center Hospital, 1-1 Kanokoden, Chikusa-ku Nagoya, 464-8681, Japan.
| | - Yoshihiro Nishida
- Department of Rehabilitation Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Takeshi Hirose
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Rumi Nakagawa
- Department of Orthopaedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Tomoki Nakamura
- Department of Orthopedic Surgery, Mie University Graduate School of Medicine, Tsu, Japan
| | - Jungo Imanishi
- Department of Orthopaedic Oncology and Surgery, Saitama Medical University International Medical Center, Hidaka, Japan
| | - Akihito Nagano
- Department of Orthopaedic Surgery, Gifu University School of Medicine, Gifu, Japan
| | - Hironari Tamiya
- Department of Orthopedic Surgery, Osaka International Cancer Institute, Osaka, Japan
| | - Takafumi Ueda
- Department of Orthopaedic Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
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Sumi N, Nagahiro S, Nakata E, Watanabe K, Ohtsuki T. Ultrasound-dependent RNAi using TatU1A-rose bengal conjugate. Bioorg Med Chem Lett 2022; 68:128767. [PMID: 35513220 DOI: 10.1016/j.bmcl.2022.128767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/18/2022] [Accepted: 04/27/2022] [Indexed: 11/30/2022]
Abstract
Tat-U1A-rose bengal conjugate (TatU1A-RB) was prepared as an ultrasound-sensitive RNA carrier molecule. This molecule consists of Tat cell-penetrating peptide, U1A RNA-binding protein, and rose bengal as a sonosensitizer. We demonstrated that TatU1A-RB delivered RNA via the endocytosis pathway, which was followed by ultrasound-dependent endosomal escape and cytosolic dispersion of the RNA. A short hairpin RNA (shRNA) delivered by TatU1A-RB mediated RNA interference (RNAi) ultrasound-dependently. Even by ultrasound irradiation through blood cells, RNAi could be induced with TatU1A-RB and the shRNA. This ultrasound-dependent cytosolic RNA delivery method will serve as the basis for a new approach to nucleic acid therapeutics.
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Affiliation(s)
- Nanako Sumi
- Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
| | - Shota Nagahiro
- Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Kazunori Watanabe
- Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan
| | - Takashi Ohtsuki
- Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan.
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Tajima S, Nakata E, Sakaguchi R, Saimura M, Mori Y, Morii T. A two-step screening to optimize the signal response of an auto-fluorescent protein-based biosensor. RSC Adv 2022; 12:15407-15419. [PMID: 35693243 PMCID: PMC9121230 DOI: 10.1039/d2ra02226e] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/15/2022] [Indexed: 11/21/2022] Open
Abstract
Auto-fluorescent protein (AFP)-based biosensors transduce the structural change in their embedded recognition modules induced by recognition/reaction events to fluorescence signal changes of AFP. The lack of detailed structural information on the recognition module often makes it difficult to optimize AFP-based biosensors. To enhance the signal response derived from detecting the putative structural change in the nitric oxide (NO)-sensing segment of transient receptor potential canonical 5 (TRPC5) fused to enhanced green fluorescent protein (EGFP), EGFP-TRPC5, a facile two-step screening strategy, in silico first and in vitro second, was applied to variants of EGFP-TRPC5 deletion-mutated within the recognition module. In in silico screening, the structural changes of the recognition modules were evaluated as root-mean-square-deviation (RMSD) values, and 10 candidates were efficiently selected from 47 derivatives. Through in vitro screening, four mutants were identified that showed a larger change in signal response than the parent EGFP-TRPC5. One mutant in particular, 551-575, showed four times larger change upon reaction with NO and H2O2. Furthermore, mutant 551-575 also showed a signal response upon reaction with H2O2 in mammalian HEK293 cells, indicating that the mutant has the potential to be applied as a biosensor for cell measurement. Therefore, this two-step screening method effectively allows the selection of AFP-based biosensors with sufficiently enhanced signal responses for application in mammalian cells. A two-step screening procedure allows optimization of the optical response of an auto-fluorescent protein-based biosensor for nitric oxide without structural information.![]()
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Affiliation(s)
- Shunsuke Tajima
- Institute of Advanced Energy, Kyoto University Uji Kyoto 611-0011 Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University Uji Kyoto 611-0011 Japan
| | - Reiko Sakaguchi
- School of Medicine, University of Occupational and Environmental Health 1-1 Iseigaoka, Yahatanishi-ku Kitakyushu Fukuoka 807-8555 Japan
| | - Masayuki Saimura
- Institute of Advanced Energy, Kyoto University Uji Kyoto 611-0011 Japan
| | - Yasuo Mori
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Kyotodaigakukatsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University Uji Kyoto 611-0011 Japan
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Rajendran A, Krishnamurthy K, Park S, Nakata E, Kwon Y, Morii T. Topologically‐Interlocked Minicircles as Probes of DNA Topology and DNA–Protein Interactions. Chemistry 2022; 28:e202200839. [DOI: 10.1002/chem.202200839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | - Seojeong Park
- College of Pharmacy Ewha Womans University Seoul 120-750 Republic of Korea
| | - Eiji Nakata
- Institute of Advanced Energy Kyoto University Uji Kyoto 611-0011 Japan
| | - Youngjoo Kwon
- College of Pharmacy Ewha Womans University Seoul 120-750 Republic of Korea
| | - Takashi Morii
- Institute of Advanced Energy Kyoto University Uji Kyoto 611-0011 Japan
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Rajendran A, Krishnamurthy K, Park S, Nakata E, Kwon Y, Morii T. Topologically‐Interlocked Minicircles as Probes of DNA Topology and DNA‐Protein Interactions. Chemistry 2022; 28:e202200108. [DOI: 10.1002/chem.202200108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Indexed: 12/30/2022]
Affiliation(s)
| | | | - Seojeong Park
- College of Pharmacy Ewha Womans University Seoul 120-750 Republic of Korea
| | - Eiji Nakata
- Institute of Advanced Energy Kyoto University Uji Kyoto, 611–0011 Japan
| | - Youngjoo Kwon
- College of Pharmacy Ewha Womans University Seoul 120-750 Republic of Korea
| | - Takashi Morii
- Institute of Advanced Energy Kyoto University Uji Kyoto, 611–0011 Japan
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Rajendran A, Krishnamurthy K, Park S, Nakata E, Kwon Y, Morii T. Front Cover: Topologically‐Interlocked Minicircles as Probes of DNA Topology and DNA‐Protein Interactions (Chem. Eur. J. 22/2022). Chemistry 2022. [DOI: 10.1002/chem.202200838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Seojeong Park
- College of Pharmacy Ewha Womans University Seoul 120-750 Republic of Korea
| | - Eiji Nakata
- Institute of Advanced Energy Kyoto University Uji Kyoto, 611–0011 Japan
| | - Youngjoo Kwon
- College of Pharmacy Ewha Womans University Seoul 120-750 Republic of Korea
| | - Takashi Morii
- Institute of Advanced Energy Kyoto University Uji Kyoto, 611–0011 Japan
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Okazaki Y, Furumatsu T, Hiranaka T, Kamatsuki Y, Nakata E, Tetsunaga T, Yamane K, Ozaki T. Grade of Subchondral Insufficiency Fracture of the Knee and the Presence of a Posterior Shiny-Corner Lesion are Correlated with Duration of Medial Meniscus Posterior Root Tear in Women. Acta Med Okayama 2022; 76:121-127. [PMID: 35503439 DOI: 10.18926/amo/63405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Bone marrow edema (BME) after meniscus injury and risk factors for subchondral insufficiency fracture of the knee (SIFK) have been reported. However, their association with medial meniscus posterior root tear (MMPRT) remains unknown. We investigated the association of BME volume (BME-V), posterior shinycorner lesion (PSCL), and SIFK with MMPRT to examine the correlations between BME-V and medial meniscus extrusion (MME), PSCL and duration from injury to the time of magnetic resonance imaging (duration), and SIFK and duration. Twenty-nine patients who underwent surgery for MMPRT were included (mean age, 59.2; range, 39-84). The presence of PSCL, femoral BME-V (cm3), and SIFK grade (1-4) were evaluated. Preoperative factors, such as MME (mm) and duration (weeks), were investigated using multivariate linear/ logistic regression analyses. Multivariate linear regression analysis revealed duration as a significant factor for high-grade SIFK (p<0.01). Multivariate logistic regression analysis revealed duration as a significant factor for the presence of PSCL (odds ratio=0.94, p<0.05). A long duration of MMPRT leads to severe MME and highgrade SIFK (3 and 4), often resulting in knee arthroplasty. Early diagnosis of MMPRT and pullout repair can prevent severe MME and high-grade SIFK.
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Affiliation(s)
- Yuki Okazaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Takaaki Hiranaka
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Yusuke Kamatsuki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Tomonori Tetsunaga
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Kentaro Yamane
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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Yamada D, Takao T, Nakamura M, Kitano T, Nakata E, Takarada T. Identification of Surface Antigens That Define Human Pluripotent Stem Cell-Derived PRRX1+Limb-Bud-like Mesenchymal Cells. Int J Mol Sci 2022; 23:ijms23052661. [PMID: 35269809 PMCID: PMC8910499 DOI: 10.3390/ijms23052661] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/24/2022] [Accepted: 02/27/2022] [Indexed: 12/02/2022] Open
Abstract
Stem cell-based therapies and experimental methods rely on efficient induction of human pluripotent stem cells (hPSCs). During limb development, the lateral plate mesoderm (LPM) produces limb-bud mesenchymal (LBM) cells that differentiate into osteochondroprogenitor cells and form cartilage tissues in the appendicular skeleton. Previously, we generated PRRX1-tdTomato reporter hPSCs to establish the protocol for inducing the hPSC-derived PRRX1+ LBM-like cells. However, surface antigens that assess the induction efficiency of hPSC-derived PRRX1+ LBM-like cells from LPM have not been identified. Here, we used PRRX1-tdTomato reporter hPSCs and found that high pluripotent cell density suppressed the expression of PRRX1 mRNA and tdTomato after LBM-like induction. RNA sequencing and flow cytometry suggested that PRRX1-tdTomato+ LBM-like cells are defined as CD44high CD140Bhigh CD49f−. Importantly, other hPSC lines, including four human induced pluripotent stem cell lines (414C2, 1383D2, HPS1042, HPS1043) and two human embryonic stem cell lines (SEES4, SEES7), showed the same results. Thus, an appropriate cell density of hPSCs before differentiation is a prerequisite for inducing the CD44high CD140Bhigh CD49f− PRRX1+ LBM-like cells.
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Affiliation(s)
- Daisuke Yamada
- Department of Regenerative Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama 700-8558, Japan; (D.Y.); (T.T.); (T.K.)
| | - Tomoka Takao
- Department of Regenerative Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama 700-8558, Japan; (D.Y.); (T.T.); (T.K.)
| | - Masahiro Nakamura
- Precision Health, Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan;
| | - Toki Kitano
- Department of Regenerative Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama 700-8558, Japan; (D.Y.); (T.T.); (T.K.)
| | - Eiji Nakata
- Department Orthopedic Surgery, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama 700-8558, Japan;
| | - Takeshi Takarada
- Department of Regenerative Science, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama 700-8558, Japan; (D.Y.); (T.T.); (T.K.)
- Correspondence:
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Tokuhara T, Nakata E, Ogata A, Tenjo T, Kawai I, Kondo K, Hatabe S, Yokoyama K. Intracorporeal gastrojejunostomy in Roux-en-Y reconstruction with its efferent loop located on the patient's left side following totally laparoscopic distal gastrectomy: A case report. Mol Clin Oncol 2022; 16:47. [PMID: 35003745 PMCID: PMC8739077 DOI: 10.3892/mco.2021.2480] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/08/2021] [Indexed: 12/02/2022] Open
Abstract
The drawback of intracorporeal gastrojejunostomy using only endoscopic linear staplers in antecolic Roux-en-Y (R-Y) reconstruction with its efferent loop located on the patient's left side following totally laparoscopic distal gastrectomy (TLDG) is the occurrence of anastomotic failure, even though this reconstruction system is assumed to prevent intraoperative and postoperative twisting of the gastrojejunostomy and lifted jejunum. This case report presents two patients with gastric cancer who underwent intracorporeal gastrojejunostomy consisting of linear stapling and hand suturing in antecolic R-Y reconstruction with its efferent loop located on the patient's left side following TLDG to prevent anastomotic failure of the gastrojejunostomy. After the sacrificed jejunum was created, linear stapling of the greater curvature of the remnant stomach and the lifted jejunum without dividing the jejunum was performed. After removing the sacrificed jejunum and creating a good view of the posterior side of the stapler entry hole, the stapler entry hole was closed from the posterior side to the anterior side, using a single-layer full-thickness and serosubmucosal hand suturing technique with knotted sutures and a knotless barbed suture. No anastomotic failure of the gastrojejunostomy occurred in either patient. Intracorporeal gastrojejunostomy consisting of linear stapling and hand suturing could be an option for gastrojejunostomy in antecolic R-Y reconstruction with its efferent loop located on the patient's left side following TLDG because it can aid in the prevention of anastomotic failure.
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Affiliation(s)
- Takaya Tokuhara
- Department of Surgery, Tanigawa Memorial Hospital, Osaka 567-0031, Japan.,Department of Surgery, Otori Stomach and Intestines Hospital, Osaka 593-8311, Japan
| | - Eiji Nakata
- Department of Surgery, Otori Stomach and Intestines Hospital, Osaka 593-8311, Japan
| | - Akihito Ogata
- Department of Surgery, Tanigawa Memorial Hospital, Osaka 567-0031, Japan
| | - Toshiyuki Tenjo
- Department of Surgery, Otori Stomach and Intestines Hospital, Osaka 593-8311, Japan
| | - Isao Kawai
- Department of Surgery, Otori Stomach and Intestines Hospital, Osaka 593-8311, Japan
| | - Keisaku Kondo
- Department of Surgery, Otori Stomach and Intestines Hospital, Osaka 593-8311, Japan
| | - Shigeru Hatabe
- Department of Surgery, Otori Stomach and Intestines Hospital, Osaka 593-8311, Japan
| | - Kazutake Yokoyama
- Department of Surgery, Tanigawa Memorial Hospital, Osaka 567-0031, Japan
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Zhang Z, Nakata E, Dinh H, Saimura M, Rajendran A, Matsuda K, Morii T. Tuning the Reactivity of a Substrate for SNAP-Tag Expands Its Application for Recognition-Driven DNA-Protein Conjugation. Chemistry 2021; 27:18118-18128. [PMID: 34747070 DOI: 10.1002/chem.202103304] [Citation(s) in RCA: 1] [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: 09/11/2021] [Indexed: 11/09/2022]
Abstract
Recognition-driven modification has been emerging as a novel approach to modifying biomolecular targets of interest site-specifically and efficiently. To this end, protein modular adaptors (MAs) are the ideal reaction model for recognition-driven modification of DNA as they consist of both a sequence-specific DNA-binding domain (DBD) and a self-ligating protein-tag. Coupling DNA recognition by DBD and the chemoselective reaction of the protein tag could provide a highly efficient sequence-specific reaction. However, combining an MA consisting of a reactive protein-tag and its substrate, for example, SNAP-tag and benzyl guanine (BG), revealed rather nonselective reaction with DNA. Therefore new substrates of SNAP-tag have been designed to realize sequence-selective rapid crosslinking reactions of MAs with SNAP-tag. The reactions of substrates with SNAP-tag were verified by kinetic analyses to enable the sequence-selective crosslinking reaction of MA. The new substrate enables the distinctive orthogonality of SNAP-tag against CLIP-tag to achieve orthogonal DNA-protein crosslinking by six unique MAs.
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Affiliation(s)
- Zhengxiao Zhang
- Institute of Advanced Energy, Kyoto University Uji, Kyoto, 6110011, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University Uji, Kyoto, 6110011, Japan
| | - Huyen Dinh
- Institute of Advanced Energy, Kyoto University Uji, Kyoto, 6110011, Japan
| | - Masayuki Saimura
- Institute of Advanced Energy, Kyoto University Uji, Kyoto, 6110011, Japan
| | | | - Kazunari Matsuda
- Institute of Advanced Energy, Kyoto University Uji, Kyoto, 6110011, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University Uji, Kyoto, 6110011, Japan
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Hara T, Takatsuka Y, Nakata E, Morii T. Augmentation of an Engineered Bacterial Strain Potentially Improves the Cleanup of PCB Water Pollution. Microbiol Spectr 2021; 9:e0192621. [PMID: 34937186 PMCID: PMC8694117 DOI: 10.1128/spectrum.01926-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 11/23/2021] [Indexed: 12/04/2022] Open
Abstract
Polychlorinated biphenyls (PCBs) are recalcitrant organohalide pollutants, consisting of 209 congeners. PCB cleanup in natural landscapes is expected to be achieved by the metabolic activity of microorganisms, but aerobic PCB-degrading bacteria that inhabit sites polluted by PCBs cannot degrade all PCB congeners due to the specificity of their enzymes. In this study, we investigated the degradability of PCBs when a genetically modified PCB-degrading bacterium was compounded with wild-type PCB-degrading bacteria. We used two bacterial strains, Comamonas testosteroni YAZ2 isolated from a PCB-uncontaminated natural landscape and Escherichia coli BL21(DE3) transformed with a biphenyl dioxygenase (BphA) gene from a well-known PCB degrader, Burkholderia xenovorans LB400. The enzymatic specificities of BphA were 2,3-dioxygenation in the YAZ2 and 2,3- and 3,4-dioxygenations in the recombinant E. coli. For the PCB-degrading experiment, a dedicated bioreactor capable of generating oxygen microbubbles was prototyped and used. The combined cells of the recombinant and the wild-type strains with an appropriate composite ratio degraded 40 mg/L of Kaneclor KC-300 to 0.3 ± 0.1 mg/L within 24 h. All of the health-toxic coplanar PCB congeners in KC-300 were degraded. This study suggested that the augmentation of an engineered bacterial strain could improve the cleanup of PCB water pollution. It also revealed the importance of the ratio of the strains with different PCB-degrading profiles to efficient degradation and that the application of oxygen microbubbles could rapidly accelerate the cleanup. IMPORTANCE PCB cleanup technique in a natural environment relies on the use of enzymes from microorganisms, primarily biphenyl dioxygenase and dehalogenase. Herein, we focused on biphenyl dioxygenase and created a recombinant PCB-degrading E. coli strain. Despite the development of environments for the field use of transgenic microbial strains around the world, verification of the applicability of transgenic microbial strains for PCB cleanup in the field has not yet been reported. We tentatively verified the extent to which degradability could be obtained by an augmentation model of a transgenic strain, the enzyme expression of which is easily regulated in rivers and lakes with PCB pollution. Our experiments used a dedicated bioreactor to model the natural landscape and produced results superior to those of bioremediation or biostimulation methods. The application of micro-nano bubbles, which has recently been discussed, to the cleanup of environmental pollution was also found to be useful in this study.
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Affiliation(s)
- Tomijiro Hara
- Environmental Microbiology Research Section, Laboratory for Complex Energy Processes, Institute of Advanced Energy, Kyoto University, Uji, Kyoto, Japan
| | - Yumiko Takatsuka
- Environmental Microbiology Research Section, Laboratory for Complex Energy Processes, Institute of Advanced Energy, Kyoto University, Uji, Kyoto, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto, Japan
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Akezaki Y, Nakata E, Kikuuchi M, Sugihara S, Katayama Y, Katayama H, Hamada M, Ozaki T. Factors Affecting the Quality of Life of Patients with Painful Spinal Bone Metastases. Healthcare (Basel) 2021; 9:healthcare9111499. [PMID: 34828545 PMCID: PMC8625781 DOI: 10.3390/healthcare9111499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/19/2021] [Accepted: 10/30/2021] [Indexed: 11/21/2022] Open
Abstract
This study examined changes in the quality of life (QOL), as well as the factors affecting QOL, among patients with painful spinal bone metastases without paralysis for 1 month after radiotherapy. Methods: This study included 79 participants (40 male and 39 female; median age, 65 (42–88) years) who had undergone radiotherapy for painful spinal bone metastases without paralysis. Patients’ age, sex, activities of daily living (Barthel index), pain, spinal instability (spinal instability neoplastic score [SINS]), and QOL (EORTC QLQ-C30) were investigated. Results: Having an unstable SINS score was a positive factor for global health status (p < 0.05). The improvement in activities of daily living and response to pain were positive factors for physical function (p < 0.05). A positive effect on emotional function was confirmed among female patients (p < 0.05). Conclusion: Engaging in rehabilitation along with radiotherapy leads to improvements in QOL for patients with spinal bone metastases.
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Affiliation(s)
- Yoshiteru Akezaki
- Division of Physical Therapy, Kochi Professional University of Rehabilitation, Kochi 781-1102, Japan;
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama 700-8558, Japan; (H.K.); (T.O.)
- Correspondence:
| | - Masato Kikuuchi
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Ehime 791-0280, Japan; (M.K.); (S.S.)
| | - Shinsuke Sugihara
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Ehime 791-0280, Japan; (M.K.); (S.S.)
| | - Yoshimi Katayama
- Department of Rehabilitation Medicine, Okayama University Hospital, Okayama 700-8558, Japan; (Y.K.); (M.H.)
| | - Haruki Katayama
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama 700-8558, Japan; (H.K.); (T.O.)
| | - Masanori Hamada
- Department of Rehabilitation Medicine, Okayama University Hospital, Okayama 700-8558, Japan; (Y.K.); (M.H.)
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Hospital, Okayama 700-8558, Japan; (H.K.); (T.O.)
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Hasei J, Kunisada T, Nakata E, Ozaki T. Sub-deltoid approach for removal of large lipoma around the proximal humerus: A report of three cases. J Orthop Sci 2021; 26:1147-1151. [PMID: 30718041 DOI: 10.1016/j.jos.2018.12.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 12/18/2018] [Accepted: 12/29/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Joe Hasei
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Toshiyuki Kunisada
- Department of Medical Materials for Musculoskeletal Reconstruction, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan.
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
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Kawamura Y, Tetsunaga T, Akazawa H, Yamada K, Sanki T, Sato Y, Nakata E, Ozaki T. Acetabular depth, an early predictive factor of acetabular development: MRI in patients with developmental dysplasia of the hip after open reduction. J Pediatr Orthop B 2021; 30:509-514. [PMID: 32804881 PMCID: PMC8480518 DOI: 10.1097/bpb.0000000000000799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 07/23/2020] [Indexed: 11/25/2022]
Abstract
Early prediction of future acetabular development is important to determine an additional surgery for developmental dysplasia of the hip (DDH). The purpose of this study was to investigate the predictive factors of acetabular development using MRI. We retrospectively investigated dislocated 40 hips and 34 normal hips in 37 pediatric patients (9 males and 28 females) with DDH who underwent open reduction after walking age. We evaluated the cartilaginous acetabulum and labrum of the patients using coronal MRI T2*-weighted images at 5 years of age. The mean age at the time of surgery was 22 months, and the mean age at the final survey was 19 years. We divided patients into two groups in accordance with the Severin classification at the final follow-up. Groups with good outcomes (affected 26 hips and unaffected 27 hips) and poor outcomes (14 hips and 7 hips) were compared using the MRI parameters on each side. Predictive factors of acetabular development were identified using univariate and multiple logistic regression analyses. Using multiple logistic regression analysis, labral acetabular roof depth and labral hip center distance at 5 years of age represented predictors after open reduction (odds ratio 0.27, P = 0.035; odds ratio 3.4, P = 0.028, respectively) on the affected side, and bony hip center distance represented a predictor on the unaffected side (odds ratio 2.6, P = 0.049). Acetabular development in the unaffected side could be predicted by bony assessment, while acetabular development in the affected side had to be assessed by labrum using MRI.
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Affiliation(s)
| | | | - Hirofumi Akazawa
- Department of Orthopaedic Surgery, Asahigawasou Rehabilitation and Medical Center, Kitaku, Okayama, Japan
| | - Kazuki Yamada
- Department of Orthopaedic Surgery, Okayama University
| | - Tomoaki Sanki
- Department of Orthopaedic Surgery, Okayama University
| | | | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University
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Lin P, Dinh H, Nakata E, Morii T. Conditional dependence of enzyme cascade reaction efficiency on the inter-enzyme distance. Chem Commun (Camb) 2021; 57:11197-11200. [PMID: 34622899 DOI: 10.1039/d1cc04162b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A dual-enzyme cascade, xylitol dehydrogenase and xylulose kinase, derived from the xylose metabolic pathway, was constructed on a three-dimensional DNA scaffold which exhibited a dynamic shape transition from an open state to a closed hexagonal prism. Evaluation of the cascade reaction efficiencies in the open and closed states revealed little to no inter-enzyme distance dependence, presumably due to the far larger catalytic constant of the downstream enzyme. The inter-enzyme distance was not the dominant factor for cascade efficiency when the kinetic parameters of the cascade enzymes were imbalanced with the highly efficient downstream enzyme.
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Affiliation(s)
- Peng Lin
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Huyen Dinh
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan.
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Uji, Kyoto 611-0011, Japan.
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Yoshikawa N, Yamazaki S, Kakimoto Y, Eguchi S, Yokoyama R, Kanehisa N, Tohnai N, Nakata E, Takashima H. Emission properties of 1,10-phenanthroline derivatives induced by protonation of a nitrogen atom. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130728] [Citation(s) in RCA: 3] [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] [Indexed: 11/28/2022]
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Akezaki Y, Nakata E, Kikuuchi M, Tominaga R, Kurokawa H, Hamada M, Aogi K, Ohsumi S, Sugihara S. Factors associated with return to work of breast cancer patients following axillary lymph node dissection. Work 2021; 70:271-277. [PMID: 34511470 DOI: 10.3233/wor-213571] [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: 11/15/2022] Open
Abstract
BACKGROUND The identification of factors that are related to return to work after surgery for breast cancer could help healthcare professionals accurately identify patients at risk of return to work-related difficulties in order to provide them with appropriate support during breast cancer management. OBJECTIVE The aim of this study was to identify factors related to return to work in breast cancer patients three months after axillary lymph node dissection. METHODS Seventy-three women who were working before the surgery were evaluated. Age, body mass index, level of lymph node dissection, marital status, children, co-resident household members, preoperative chemotherapy, postoperative chemotherapy, postoperative hormonal therapy, postoperative radiotherapy, shoulder range of motion, upper limb function (Disabilities of the Arm, Shoulder and Hand; DASH), and work were evaluated. Patients who had returned to work constituted the return to work group, and those who had not returned to work constituted the no return to work group. RESULTS Of the patients, 36 returned to work at three months. Logistic regression analysis including the five variables showed that shoulder flexion range of motion and DASH were significantly associated with return to work (p < 0.05). CONCLUSIONS The observation that the symptoms and limitations of upper limb function and shoulder flexion range of motion affect return to work may indicate the importance of postoperative rehabilitation in breast cancer patients following axillary lymph node dissection.
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Affiliation(s)
- Yoshiteru Akezaki
- Division of Physical Therapy, Kochi Professional University of Rehabilitation, Takaoka-Machi, Tosa, Kochi, Japan
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Hospital, Kita Ward, Okayama, Japan
| | - Masato Kikuuchi
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - Ritsuko Tominaga
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - Hideaki Kurokawa
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - Makiko Hamada
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - Kenjiro Aogi
- Department of Breast Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - Shozo Ohsumi
- Department of Breast Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - Shinsuke Sugihara
- Department of Rehabilitation Medicine, National Hospital Organization Shikoku Cancer Center, Matsuyama, Ehime, Japan
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46
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Yamada D, Nakamura M, Takao T, Takihira S, Yoshida A, Kawai S, Miura A, Ming L, Yoshitomi H, Gozu M, Okamoto K, Hojo H, Kusaka N, Iwai R, Nakata E, Ozaki T, Toguchida J, Takarada T. Induction and expansion of human PRRX1 + limb-bud-like mesenchymal cells from pluripotent stem cells. Nat Biomed Eng 2021; 5:926-940. [PMID: 34373601 DOI: 10.1038/s41551-021-00778-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 07/01/2021] [Indexed: 02/05/2023]
Abstract
Current protocols for the differentiation of human pluripotent stem cells (hPSCs) into chondrocytes do not allow for the expansion of intermediate progenitors so as to prospectively assess their chondrogenic potential. Here we report a protocol that leverages PRRX1-tdTomato reporter hPSCs for the selective induction of expandable and ontogenetically defined PRRX1+ limb-bud-like mesenchymal cells under defined xeno-free conditions, and the prospective assessment of the cells' chondrogenic potential via the cell-surface markers CD90, CD140B and CD82. The cells, which proliferated stably and exhibited the potential to undergo chondrogenic differentiation, formed hyaline cartilaginous-like tissue commensurate to their PRRX1-expression levels. Moreover, we show that limb-bud-like mesenchymal cells derived from patient-derived induced hPSCs can be used to identify therapeutic candidates for type II collagenopathy and we developed a method to generate uniformly sized hyaline cartilaginous-like particles by plating the cells on culture dishes coated with spots of a zwitterionic polymer. PRRX1+ limb-bud-like mesenchymal cells could facilitate the mass production of chondrocytes and cartilaginous tissues for applications in drug screening and tissue engineering.
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Affiliation(s)
- Daisuke Yamada
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masahiro Nakamura
- Precision Health, Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Tomoka Takao
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Shota Takihira
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.,Department Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Aki Yoshida
- Department Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Shunsuke Kawai
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Akihiro Miura
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Lu Ming
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hiroyuki Yoshitomi
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan.,Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Mai Gozu
- Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Kumi Okamoto
- Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Hironori Hojo
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Naoyuki Kusaka
- Institute of Frontier Science and Technology, Okayama University of Science, Okayama, Japan
| | - Ryosuke Iwai
- Institute of Frontier Science and Technology, Okayama University of Science, Okayama, Japan
| | - Eiji Nakata
- Department Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Toshifumi Ozaki
- Department Orthopedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Junya Toguchida
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan.,Department of Regeneration Science and Engineering, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Takeshi Takarada
- Department of Regenerative Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
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47
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Rajendran A, Krishnamurthy K, Giridasappa A, Nakata E, Morii T. Stabilization and structural changes of 2D DNA origami by enzymatic ligation. Nucleic Acids Res 2021; 49:7884-7900. [PMID: 34289063 PMCID: PMC8373134 DOI: 10.1093/nar/gkab611] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/16/2021] [Accepted: 07/06/2021] [Indexed: 12/15/2022] Open
Abstract
The low thermal stability of DNA nanostructures is the major drawback in their practical applications. Most of the DNA nanotubes/tiles and the DNA origami structures melt below 60°C due to the presence of discontinuities in the phosphate backbone (i.e., nicks) of the staple strands. In molecular biology, enzymatic ligation is commonly used to seal the nicks in the duplex DNA. However, in DNA nanotechnology, the ligation procedures are neither optimized for the DNA origami nor routinely applied to link the nicks in it. Here, we report a detailed analysis and optimization of the conditions for the enzymatic ligation of the staple strands in four types of 2D square lattice DNA origami. Our results indicated that the ligation takes overnight, efficient at 37°C rather than the usual 16°C or room temperature, and typically requires much higher concentration of T4 DNA ligase. Under the optimized conditions, up to 10 staples ligation with a maximum ligation efficiency of 55% was achieved. Also, the ligation is found to increase the thermal stability of the origami as low as 5°C to as high as 20°C, depending on the structure. Further, our studies indicated that the ligation of the staple strands influences the globular structure/planarity of the DNA origami, and the origami is more compact when the staples are ligated. The globular structure of the native and ligated origami was also found to be altered dynamically and progressively upon ethidium bromide intercalation in a concentration-dependent manner.
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Affiliation(s)
| | | | - Amulya Giridasappa
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
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48
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Lin P, Dinh H, Nakata E, Morii T. Dynamic Shape Transformation of a DNA Scaffold Applied for an Enzyme Nanocarrier. Front Chem 2021; 9:697857. [PMID: 34249866 PMCID: PMC8263910 DOI: 10.3389/fchem.2021.697857] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 06/01/2021] [Indexed: 11/13/2022] Open
Abstract
Structural programmability and accurate addressability of DNA nanostructures are ideal characteristics for the platform of arranging enzymes with the nanoscale precision. In this study, a three-dimensional DNA scaffold was designed to enable a dynamic shape transition from an open plate-like structure to its closed state of a hexagonal prism structure. The two domains in the open state were folded together to transform into the closed state by hybridization of complementary short DNA closing keys at both of the facing edges in over 90% yield. The shape transformation of the DNA scaffold was extensively studied by means of the fluorescence energy transfer measurement, atomic force microscope images, and agarose gel electrophoretic analyses. A dimeric enzyme xylitol dehydrogenase was assembled on the DNA scaffold in its open state in a high-loading yield. The enzyme loaded on the scaffold was subsequently transformed to its closed state by the addition of short DNA closing keys. The enzyme encapsulated in the closed state displayed comparable activity to that in the open state, ensuring that the catalytic activity of the enzyme was well maintained in the DNA nanocarrier. The nanocarrier with efficient encapsulation ability is potentially applicable for drug delivery, biosensing, biocatalytic, and diagnostic tools.
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Affiliation(s)
- Peng Lin
- Institute of Advanced Energy, Kyoto University, Kyoto, Japan
| | - Huyen Dinh
- Institute of Advanced Energy, Kyoto University, Kyoto, Japan
| | - Eiji Nakata
- Institute of Advanced Energy, Kyoto University, Kyoto, Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University, Kyoto, Japan
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49
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Kimura H, Nagasato N, Kato N, Kojima M, Enomoto C, Nakata E, Takashima H. Photophysical and elecron-transfer reaction properties of tris(2,2’-bipyridine)ruthenium(II)-based inhibitors that covalently bound to the active site of chymotrypsin. Journal of Photochemistry and Photobiology 2021. [DOI: 10.1016/j.jpap.2021.100027] [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: 10/21/2022] Open
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50
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Nakata E, Hirose H, Gerelbaatar K, Arafiles JVV, Zhang Z, Futaki S, Morii T. A facile combinatorial approach to construct a ratiometric fluorescent sensor: application for the real-time sensing of cellular pH changes. Chem Sci 2021; 12:8231-8240. [PMID: 34194714 PMCID: PMC8208317 DOI: 10.1039/d1sc01575c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/04/2021] [Indexed: 02/02/2023] Open
Abstract
Realtime monitoring of the cellular environment, such as the intracellular pH, in a defined cellular space provides a comprehensive understanding of the dynamics processes in a living cell. Considering the limitation of spatial resolution in conventional microscopy measurements, multiple types of fluorophores assembled within that space would behave as a single fluorescent probe molecule. Such a character of microscopic measurements enables a much more flexible combinatorial design strategy in developing fluorescent probes for given targets. Nanomaterials with sizes smaller than the microscopy spatial resolution provide a scaffold to assemble several types of fluorophores with a variety of optical characteristics, therefore providing a convenient strategy for designing fluorescent pH sensors. In this study, fluorescein (CF) and tetramethylrhodamine (CR) were assembled on a DNA nanostructure with controlling the number of each type of fluorophore. By taking advantage of the different responses of CF and CR emissions to the pH environment, an appropriate assembly of both CF and CR on DNA origami enabled a controlled intensity of fluorescence emission and ratiometric pH monitoring within the space defined by DNA origami. The CF and CR-assembled DNA origami was successfully applied for monitoring the intracellular pH changes.
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Affiliation(s)
- Eiji Nakata
- Institute of Advanced Energy, Kyoto University Kyoto Japan
| | - Hisaaki Hirose
- Institute for Chemical Research, Kyoto University Kyoto Japan
| | | | | | | | - Shiroh Futaki
- Institute for Chemical Research, Kyoto University Kyoto Japan
| | - Takashi Morii
- Institute of Advanced Energy, Kyoto University Kyoto Japan
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