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Miyashita H, Takehara I, Nishimura M, Takayama G, Sumi H, Kadokura M, Nakai D. Evaluation of Collection and Processing Conditions for Gene Expression Analysis Using Human Myeloid Cells. Biopreserv Biobank 2024. [PMID: 38526566 DOI: 10.1089/bio.2023.0072] [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: 03/26/2024] Open
Abstract
Background: The population of blast cells among peripheral blood mononuclear cells (PBMCs) obtained from patients is a desirable specimen for analyzing gene expression in diseases including acute myeloid leukemia. Although the enrichment of blast cells often needs to be performed at a central laboratory, acceptable conditions for sample transport from clinical sites remain to be established. Methods: We evaluated storage temperature, duration, and tube type before initiating sample processing for the analysis of cluster of differentiation (CD)33+ myeloid cells among PBMCs as an alternative to CD34+/CD33+ blast cells. Results: CD33+ myeloid cells were successfully purified by MACS. The cell viability and the RNA integrity were sustained during storage up to 48 hours before sample processing. Storage at 4°C had minimal effects on gene expression, whereas storage at room temperature induced the senescence pathway, characterized by the expression of stress-inducible genes. A CPT tube was also better than an ethylenediaminetetraacetic acid tube for minimizing gene expression change. Conclusions: Our study provided important clues for establishing a sample handling approach for gene expression analysis with purified cell fractions from human PBMCs. To keep the variation of gene expression to a minimum, samples should be delivered at 4°C within 48 hours before processing.
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Nishizaki D, Kurzrock R, Miyashita H, Adashek JJ, Lee S, Nikanjam M, Eskander RN, Patel H, Botta GP, Nesline MK, Pabla S, Conroy JM, DePietro P, Sicklick JK, Kato S. Viewing the immune checkpoint VISTA: landscape and outcomes across cancers. ESMO Open 2024; 9:102942. [PMID: 38503143 DOI: 10.1016/j.esmoop.2024.102942] [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: 09/01/2023] [Revised: 12/18/2023] [Accepted: 02/16/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND Optimizing immune checkpoint inhibitor (ICI) therapy may require identification of co-targetable checkpoint pathways via immune profiling. Herein, we analyzed the transcriptomic expression and clinical correlates of V-domain immunoglobulin suppressor of T-cell activation (VISTA), a promising targetable checkpoint. PATIENTS AND METHODS RNA sequencing was carried out on 514 tissues reflecting diverse advanced/metastatic cancers. Expression of eight immune checkpoint markers [lymphocyte-activation gene 3 (LAG-3), tumor necrosis factor receptor superfamily 14 (TNFRSF14), programmed cell death protein 1 (PD-1), programmed death-ligand 1 (PD-L1), programmed death-ligand 2 (PD-L2), B- and T-lymphocyte attenuator (BTLA), T-cell immunoglobulin and mucin domain-containing protein 3 (TIM-3), cytotoxic T-lymphocyte antigen 4 (CTLA-4)], in addition to VISTA, was analyzed, along with clinical outcomes. RESULTS High VISTA RNA expression was observed in 32% of tumors (66/514) and was the most common highly expressed checkpoint among the nine assessed. High VISTA expression was independently correlated with high BTLA, TIM-3, and TNFRSF14, and with a diagnosis of pancreatic, small intestine, and stomach cancer. VISTA transcript levels did not correlate with overall survival (OS) from metastatic/advanced disease in the pan-cancer cohort or with immunotherapy outcome (progression-free survival and OS from the start of ICI) in 217 ICI-treated patients. However, in ICI-treated pancreatic cancer patients (n = 16), median OS was significantly shorter (from immunotherapy initiation) for the high- versus not-high-VISTA groups (0.28 versus 1.21 years) (P = 0.047); in contrast, VISTA levels were not correlated with OS in 36 pancreatic cancer patients who did not receive ICI. CONCLUSION High VISTA expression correlates with high BTLA, TIM-3, and TNFRSF14 checkpoint-related molecules and with poorer post-immunotherapy survival in pancreatic cancer, consistent with prior literature indicating that VISTA is prominently expressed on CD68+ macrophages in pancreatic cancers and requiring validation in larger prospective studies. Immunomic analysis may be important for individualized precision immunotherapy.
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Affiliation(s)
- D Nishizaki
- Center for Personalized Cancer Therapy and Division of Hematology and Oncology, Department of Medicine, University of California San Diego, Moores Cancer Center, La Jolla.
| | - R Kurzrock
- MCW Cancer Center and Genomic Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, USA; WIN Consortium, Paris, France
| | - H Miyashita
- Dartmouth Cancer Center, Hematology and Medical Oncology, Lebanon
| | - J J Adashek
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Hospital, Baltimore
| | - S Lee
- Center for Personalized Cancer Therapy and Division of Hematology and Oncology, Department of Medicine, University of California San Diego, Moores Cancer Center, La Jolla
| | - M Nikanjam
- Center for Personalized Cancer Therapy and Division of Hematology and Oncology, Department of Medicine, University of California San Diego, Moores Cancer Center, La Jolla
| | - R N Eskander
- Center for Personalized Cancer Therapy and Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Diego, Moores Cancer Center, La Jolla
| | - H Patel
- Center for Personalized Cancer Therapy and Division of Hematology and Oncology, Department of Medicine, University of California San Diego, Moores Cancer Center, La Jolla
| | - G P Botta
- Center for Personalized Cancer Therapy and Division of Hematology and Oncology, Department of Medicine, University of California San Diego, Moores Cancer Center, La Jolla
| | | | | | | | | | - J K Sicklick
- Division of Surgical Oncology, Department of Surgery, Center for Personalized Cancer Therapy, University of California San Diego, La Jolla, USA
| | - S Kato
- Center for Personalized Cancer Therapy and Division of Hematology and Oncology, Department of Medicine, University of California San Diego, Moores Cancer Center, La Jolla.
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Sripodok P, Kouketsu A, Kuroda K, Miyashita H, Sugiura T, Kumamoto H. Primary Oral Mixed Neuroendocrine-Non-neuroendocrine Neoplasm (MiNEN): A Rare Case Report and Review of the Literature. Head Neck Pathol 2024; 18:13. [PMID: 38393494 PMCID: PMC10891016 DOI: 10.1007/s12105-024-01613-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/10/2024] [Indexed: 02/25/2024]
Abstract
Mixed neuroendocrine-non-neuroendocrine neoplasms (MiNENs) are rare tumors recently characterized by the presence of both neuroendocrine and non-neuroendocrine components within the same tumor tissue. Although MiNEN found their place in the WHO classification for various organs, this composite tumor in the head and neck region remains exceptionally rare. We present a case of primary oral MiNEN in a 64-year-old male located on the left side of lower gingiva. Biopsy raised suspicion of neuroendocrine carcinoma (NEC) and the patient underwent partial mandibulectomy. The resected specimen showed two distinct components of NEC and squamous cell carcinoma (SCC) with the confirmation of immunohistochemical markers. There has been no sign of recurrence nor metastasis 6 years after the surgery. In addition, we have conducted a review of published cases with potential relevance to this entity, resulting in five cases. The diverse terminology reinforces the need for a standardized classification system of oral/head and neck MiNENs.
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Affiliation(s)
- Pawat Sripodok
- Division of Oral and Maxillofacial Oncology and Surgical Sciences, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Miyagi, Japan.
- Department of Oral and Maxillofacial Pathology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand.
| | - Atsumu Kouketsu
- Division of Oral and Maxillofacial Oncology and Surgical Sciences, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Miyagi, Japan
| | - Kanako Kuroda
- Division of Oral and Maxillofacial Oncology and Surgical Sciences, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Miyagi, Japan
| | - Hitoshi Miyashita
- Department of Dentistry and Oral Surgery, Tohoku Medical and Pharmaceutical University Hospital, Miyagi, Japan
| | - Tsuyoshi Sugiura
- Division of Oral and Maxillofacial Oncology and Surgical Sciences, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Miyagi, Japan
| | - Hiroyuki Kumamoto
- Division of Oral Pathology, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Miyagi, Japan
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Iwama R, Miyashita H, Koketsu A, Kume K, Fujishima F, Masamune A, Takahashi T. A case of synchronous double cancers consisting of maxillary gingival carcinoma and intraductal papillary mucinous carcinoma, invasive: case report. BMC Oral Health 2023; 23:595. [PMID: 37633917 PMCID: PMC10464175 DOI: 10.1186/s12903-023-03253-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 07/24/2023] [Indexed: 08/28/2023] Open
Abstract
BACKGROUND The development of synchronous multiple primary cancers is one of the major causes of death in patients with head and neck cancer. Herein, we report a case of synchronous intraductal papillary mucinous carcinoma (IPMC), invasive in a patient with maxillary gingival carcinoma. CASE PRESENTATION A 73-year-old female visited our hospital complaining of a mass on the left side of the maxillary gingiva. Intraorally, an exophytic tumor, 50 × 25 mm in size, was found on the gingiva of the left maxillary posterior, and a diagnosis of squamous cell carcinoma was revealed by cytology. Emission tomography/ computed tomography with 18 Fluorodeoxyglucose-Positron (18FDG- PET/ CT) showed increased accumulation in the left maxillary gingiva, the left side of cervical lymph nodes, and the main pancreatic duct. The pancreatic ductal tumor was performed the biopsy at esophagogastroduodenoscopy (EGD) and resulted in a pathological diagnosis of IPMC, invasive. The patient was diagnosed as synchronous double primary cancers consisting of maxillary gingival carcinoma cT4aN2bM0 and IPMC, invasive cT3N0M0. She refused radical treatment, and died 11 months later. CONCLUSION 18FDG- PET/ CT, EGD and multidisciplinary approach is required for the detection and determining the treatment strategy of synchronous double primary cancers.
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Affiliation(s)
- Ryosuke Iwama
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan.
| | - Hitoshi Miyashita
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Atsumu Koketsu
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Kiyoshi Kume
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | | | - Atsushi Masamune
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Tetsu Takahashi
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
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Kajita T, Miyashita H, Kitamura J, Kouketsu A, Kumamoto H, Takahashi T. Pulmonary pleomorphic carcinoma metastasizing to the anterior mandibular gingiva: A case report and literature review. Int J Surg Case Rep 2022; 98:107499. [PMID: 36037640 PMCID: PMC9433676 DOI: 10.1016/j.ijscr.2022.107499] [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: 05/31/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 11/29/2022] Open
Abstract
Introduction and importance Pulmonary pleomorphic carcinoma (PPC) is a rare subtype of non-small cell lung cancer. No standard therapy has been established for advanced disease, which results in poor prognosis. Some cases of PPC metastasizing to mandibular gingiva have been reported, and the involved site in these reports is all unilateral mandible. Case presentation We report a case of PPC metastasizing to the anterior mandibular gingiva in a 68-year-old man. The patient was referred to our hospital with tumor bleeding and difficulty with intake. One month before, he had been diagnosed as PPC. The size of oral tumor was 28 × 25 mm, and we performed surgical resection. Although there was no recurrence of oral lesion, he died of systemic metastases after 3 months since the surgery. Clinical discussion The prognosis of patients with metastatic tumor in oral region is poor. Radical treatment for oral lesion is often difficult due to the existence of other metastasis or the refractory, in particular cases with high grade malignancies such as PPC. On the other hand, because of the development of cancer treatment and the arrival of super-aging society, the number of patients with metastatic tumor in oral region has been expected to increase in future. Conclusion PPC metastasizing to the gingiva of mandibular symphysis is extremely rare. If there are possibilities to improve the prognosis or quality of life, radical or palliative treatment for metastatic tumor in oral region should be performed. Metastases to oral cavity from Pulmonary pleomorphic carcinoma The clinical symptoms of metastatic tumor in oral cavity The improvement of patient's QOL
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Affiliation(s)
- Tomonari Kajita
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
| | - Hitoshi Miyashita
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
| | - Jun Kitamura
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Atsumu Kouketsu
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
| | - Hiroyuki Kumamoto
- Division of Oral Pathology, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
| | - Tetsu Takahashi
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan.
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Miyashita H, Kurzrock R, Lee S, Pabla S, Nesline M, Glenn S, Conroy J, DePietro P, Kato S. 765P Comprehensive analysis of the association between RAS mutation and immune checkpoint marker expression. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Abstract
Nasotracheal intubation is generally used in maxillofacial and oral surgeries under general anesthesia. However, nasal intubation may cause various complications including epistaxis, retropharyngeal dissection, and intracranial penetration of the nasotracheal tube, which occurs in patients with basal skull defects or fractures. Therefore, nasotracheal intubation is usually contraindicated in such patients. Herein, we describe an alternative technique using a balloon catheter in nasotracheal intubation to avoid surgical airway management in a patient with a history of transsphenoidal surgery. The use of a balloon catheter may be a simple and safe method of nasotracheal intubation in patients with basal skull defects.
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Munakata K, Miyashita H, Nakahara T, Shiba H, Sugahara K, Katakura A, Nakagawa T. The use of SPECT/CT to assess resorptive activity in mandibular condyles. Int J Oral Maxillofac Surg 2021; 51:942-948. [PMID: 34937677 DOI: 10.1016/j.ijom.2021.11.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 08/30/2021] [Accepted: 11/26/2021] [Indexed: 12/20/2022]
Abstract
The aim of this study was to clarify the clinical significance of bone metabolism in the mandibular condyles in determining condylar resorptive changes. Twelve condyles of patients with idiopathic condylar resorption and degenerative joint disease were analysed using 99mTc HMDP SPECT/CT at baseline and subsequent computed tomography during the follow-up period. Twenty-two healthy condyles were enrolled as controls. After generating three-dimensional SPECT/CT images, two independent observers scored the degree of condylar uptake and measured the morphological changes in the condylar height and condylar volume. In the group with positive condylar uptake, the follow-up computed tomography showed significant decreases in condylar height (-1.69 ± 0.93 mm) and condylar volume (-12.51 ± 10.30%) when compared to healthy controls (condylar height, 0.09 ± 0.54 mm; condylar volume, -0.29 ± 4.22%) (P < 0.001). Moreover, the degree of uptake correlated with the changes in condylar height (observer 1, P = 0.012; observer 2, P = 0.039) and condylar volume (observer 1, P = 0.005; observer 2, P = 0.037). These results suggest that condylar bone metabolism is closely related to the resorptive activity. Thus, SPECT/CT would be useful in the prognostic evaluation or determination of treatment strategies for idiopathic condylar resorption and degenerative joint disease.
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Affiliation(s)
- K Munakata
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - H Miyashita
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan.
| | - T Nakahara
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan
| | - H Shiba
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - K Sugahara
- Department of Oral Pathobiological Science and Surgery, Tokyo Dental College, Tokyo, Japan
| | - A Katakura
- Department of Oral Pathobiological Science and Surgery, Tokyo Dental College, Tokyo, Japan
| | - T Nakagawa
- Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
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Miyashita H, Kurzrock R, Lee S, Bevins N, Pabla S, Nesline M, Glenn S, Conroy J, DePietro P, Kato S. 992P Pan-cancer T-cell priming transcriptomic markers reveals interpatient immunomic heterogeneity independent of histologic type. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Kouketsu A, Miyashita H, Kojima I, Sakamoto M, Murata T, Mori S, Nogami S, Yamauchi K, Nagai H, Kumamoto H, Takahashi T. Comparison of different diagnostic imaging techniques for the detection of bone invasion in oral cancers. Oral Oncol 2021; 120:105453. [PMID: 34265573 DOI: 10.1016/j.oraloncology.2021.105453] [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: 02/24/2021] [Revised: 06/13/2021] [Accepted: 07/04/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVES To evaluate the ability of different imaging modalities to accurately detect bone invasion in oral squamous cell carcinomas. PATIENTS AND METHODS Patients with oral squamous cell carcinoma, who were scheduled for mandibulectomy or maxillectomy, underwent clinical evaluation using five preoperative imaging diagnosis methods-contrast-enhanced MRI, CT, 99mTc scintigraphy (Tc scan), FDG-PET CT (PET/CT), and panoramic radiography. The sensitivity and specificity of each modality in detecting bone invasion were calculated by comparing the findings on the images with postoperative histopathological findings. In a subgroup of patients, we further assessed the ability of MRI and CT to detect the accurate extent of bone invasion, including the height, width, and depth in patients with pathological mandibular invasion. RESULTS Overall, 50 patients were enrolled in this study, and nine patients with pathological mandibular invasion were included in our subgroup analysis. MRI was found to be the most useful method in detecting bone invasion, showing the highest sensitivity (88.9%) and negative predictive values (92.3%). CT (87.5% specificity and 77.8% sensitivity) was more specific than MRI, though less sensitive. Combined PET/CT was more sensitive (83.3%) and less specific (71.9%) than CT. Tc scan had high sensitivity (88.9%); however, the specificity was relatively low (71.9%). CONCLUSION MRI was the most useful method in detecting bone invasion. A negative MRI result definitively excludes bone marrow invasion. In patients with positive MRI findings, a negative CT may be useful in ruling out bone marrow invasion.
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Affiliation(s)
- Atsumu Kouketsu
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Japan.
| | - Hitoshi Miyashita
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Japan
| | - Ikuho Kojima
- Division of Oral Diagnosis, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Japan
| | - Maya Sakamoto
- Division of Oral Diagnosis, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Japan
| | - Takaki Murata
- Department of Diagnostic Radiology, School of Medicine, Tohoku University, 1-1 Seiryo-cho Aoba-ku, Sendai, Japan
| | - Shiro Mori
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Japan
| | - Shinnnosuke Nogami
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Japan
| | - Kensuke Yamauchi
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Japan
| | - Hirokazu Nagai
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Japan
| | - Hiroyuki Kumamoto
- Division of Oral Pathology, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Japan
| | - Tetsu Takahashi
- Division of Oral and Maxillofacial Surgery, Department of Disease Management Dentistry, Tohoku University Graduate School of Dentistry, Japan
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Ohkoshi A, Sato N, Kurosawa K, Miyashita H, Ishii R, Nakanome A, Ogawa T, Tachi M, Takahashi T, Katori Y. Impact of CAD/CAM mandibular reconstruction on chewing and swallowing function after surgery for locally advanced oral cancer: A retrospective study of 50 cases. Auris Nasus Larynx 2021; 48:1007-1012. [PMID: 33824036 DOI: 10.1016/j.anl.2021.03.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/09/2021] [Accepted: 03/19/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Computer-aided design and computer-aided manufacturing (CAD/CAM) techniques are increasingly applied to mandibular reconstruction, but the superiority of this method in oral food intake has not been well established. Considering the extent of mandibular defects, this retrospective study was aimed to clarify the impact of CAD/CAM mandibular reconstruction on chewing and swallowing function after surgery for locally advanced oral cancer. MATERIALS AND METHODS We performed a retrospective review of 50 patients who had undergone segmental mandibulectomy with free flap reconstruction for locally advanced oral cancer. The patients' Functional Oral Intake Scale scores were measured at 3 months after surgery, and possible contributing factors including CAD/CAM mandibular reconstruction and the extent of mandibular defects for oral food intake were subjected to univariate analysis and multivariate logistic regression analysis. RESULTS Multivariate logistic regression analysis showed that CAD/CAM mandibular reconstruction was independently associated with good oral intake, whereas both anterior or extensive mandibular resection and glossectomy were also independently associated with poor oral intake after surgery. CONCLUSION The present study showed the positive impact of CAD/CAM mandibular reconstruction on chewing and swallowing function after surgery for locally advanced oral cancer for the first time.
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Affiliation(s)
- Akira Ohkoshi
- Department of Otorhinolaryngology, Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-cho, Aoba-ku, Sendai 980-8575, Japan.
| | - Naoko Sato
- Maxiilofacial Prosthetics Clinic, Tohoku University Hospital, 1-1 Seiryo-cho, Aoba-ku, Sendai 980-8575, Japan
| | - Koreyuki Kurosawa
- Department of Plastic and Reconstructive Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-cho, Aoba-ku, Sendai 980-8575, Japan
| | - Hitoshi Miyashita
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry, 1-1 Seiryo-cho, Aoba-ku, Sendai 980-8575, Japan
| | - Ryo Ishii
- Department of Otorhinolaryngology, Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-cho, Aoba-ku, Sendai 980-8575, Japan
| | - Ayako Nakanome
- Department of Otorhinolaryngology, Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-cho, Aoba-ku, Sendai 980-8575, Japan
| | - Takenori Ogawa
- Department of Otolaryngology, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu City 501-1193, Japan
| | - Masahiro Tachi
- Department of Plastic and Reconstructive Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-cho, Aoba-ku, Sendai 980-8575, Japan
| | - Tetsu Takahashi
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry, 1-1 Seiryo-cho, Aoba-ku, Sendai 980-8575, Japan
| | - Yukio Katori
- Department of Otorhinolaryngology, Head and Neck Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-cho, Aoba-ku, Sendai 980-8575, Japan
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Miyashita H, Kuno T. Prognosis of coronavirus disease 2019 (COVID-19) in patients with HIV infection in New York City. HIV Med 2020; 22:e1-e2. [PMID: 32829525 PMCID: PMC7461410 DOI: 10.1111/hiv.12920] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/30/2020] [Accepted: 06/25/2020] [Indexed: 12/28/2022]
Affiliation(s)
- H Miyashita
- Department of Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Beth Israel, New York, NY, USA
| | - T Kuno
- Department of Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Beth Israel, New York, NY, USA
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Miyashita H, Fukumoto M, Kuwahara Y, Takahashi T, Fukumoto M. ISG20 is overexpressed in clinically relevant radioresistant oral cancer cells. Int J Clin Exp Pathol 2020; 13:1633-1639. [PMID: 32782682 PMCID: PMC7414473] [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] [Received: 03/29/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
Global standard fractionated radiotherapy (RT) for the treatment of malignancies consists of X-ray irradiation with 2-Gy/day, 5 days a week for 5-7 weeks. Recently, clinically relevant radioresistant (CRR) cells were first defined as cells that can continue to grow even after exposure to daily 2-Gy of X-rays for more than 30 days in vitro. To analyze the characteristics of radioresistant cancer cells, CRR oral cancer cells (CRR-OCCs) were established, and the expression level of interferon-stimulated exonuclease gene 20 (ISG20) was evaluated with qRT-PCR and immunohistochemical analysis. Our result revealed that the expression level of both ISG20 mRNA and its protein in CRR-OCCs were higher than those of corresponding parental cells. We concluded that ISG20 was statistically overexpressed in CRR-OCCs. ISG20 overexpression may be necessary for the radioresistant phenotype in CRR-OCCs, and targeting ISG20 of human cancer cells may lead to more efficient RT or chemoradiotherapy for eliminating cancer.
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Affiliation(s)
- Hitoshi Miyashita
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Graduate School of Dentistry, Tohoku UniversitySendai, Japan
| | | | - Yoshikazu Kuwahara
- Division of Radiation Biology and Medicine, Faculty of Medicine, Tohoku Medical and Pharmaceutical UniversitySendai, Japan
| | - Tetsu Takahashi
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Graduate School of Dentistry, Tohoku UniversitySendai, Japan
| | - Manabu Fukumoto
- Pathology Informatics Team, RIKEN Center for Advanced Intelligence ProjectTokyo, Japan
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14
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Kojima I, Takanami K, Ogawa T, Sakamoto M, Nagai H, Miyashita H, Iikubo M. High detection sensitivity and reliable morphological correlation of PET with a silicon photomultiplier for primary tongue squamous cell carcinoma. Ann Nucl Med 2020; 34:643-652. [PMID: 32564300 DOI: 10.1007/s12149-020-01489-0] [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: 04/22/2020] [Accepted: 06/12/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVE A positron emission tomography (PET) scanner using a silicon photomultiplier (SiPM PET) in place of a photomultiplier tube significantly improves the spatial and time resolution. It may also improve the evaluation of smaller lesions compared to conventional (non-SiPM) PET scanners. We compared the maximum standardized uptake value (SUVmax), detection sensitivity, and morphological correlation using magnetic resonance imaging (MRI) for primary tongue squamous cell carcinoma between the SiPM PET and non-SiPM PET scanner. METHODS We retrospectively reviewed the F-18 fluorodeoxyglucose (FDG) PET/CT features of tongue squamous cell carcinomas in consecutive, newly diagnosed, and pathologically verified patients. Twenty-five of 46 patients were scanned using SiPM PET scanner and the remaining 21 patients were scanned with a non-SiPM PET scanner. We compared the SUVmax and visual evaluation of primary tumor detectability, and the correlation between the PET-based and MRI-based tumor size (long axis, thickness, and volume). Differences in SUVmax and detection sensitivity for the primary tumor were analyzed using Welch's t test and Fisher's exact test, respectively. Correlations among the PET-based, MRI-based tumor size, and SUVmax were assessed using Spearman's rank correlation coefficient. RESULTS SUVmax of both T1/T2 and T3/T4 primary tumors were significantly higher for the SiPM PET (T1/T2 mean SUVmax: 6.6 ± 4.3, T3/T4 mean SUVmax: 18.2 ± 9.8) than that for the non-SiPM PET (T1/T2 mean SUVmax: 3.4 ± 1.4, T3/T4 mean SUVmax: 10.2 ± 4.9) (P < 0.05). While all cases of T3/T4 primary tumors were detected by both PET scanners, the detection sensitivity for T1/T2 primary tumors was significantly higher for the SiPM PET (80%) than that for the non-SiPM PET (36.4%) (P < 0.05). MRI-based tumor size correlated significantly with SiPM PET-based tumor long axis (ρ = 0.74) and volume (ρ = 0.91), but not with the non-SiPM PET-based tumor long axis and volume in T1/T2 primary lesions. Correlation between MRI-based tumor size and SUVmax was significant in both PET scanners; however, no significant difference was observed between the two scanners. CONCLUSIONS The SiPM PET provides better detection sensitivity and a reliable morphological correlation for the T1/T2 primary tongue tumors than the non-SiPM PET due to its high performance.
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Affiliation(s)
- Ikuho Kojima
- Department of Oral Diagnosis, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan. .,Head and Neck Cancer Center, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Kentaro Takanami
- Department of Diagnostic Radiology, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Takenori Ogawa
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.,Head and Neck Cancer Center, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Maya Sakamoto
- Department of Oral Diagnosis, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.,Head and Neck Cancer Center, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Hirokazu Nagai
- Head and Neck Cancer Center, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.,Department of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan
| | - Hitoshi Miyashita
- Head and Neck Cancer Center, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.,Department of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan
| | - Masahiro Iikubo
- Department of Oral Diagnosis, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.,Head and Neck Cancer Center, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
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15
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Abstract
Epistaxis is one of the most common complications of nasotracheal intubation and can be life-threatening. However, there is little discussion in the current literature on the acute management of massive epistaxis after nasotracheal extubation. This is a report of 2 patients who experienced severe unanticipated nasal bleeding immediately after extubation, 1 after a surgical procedure for oral cancer and another after restorative dental treatment. In both cases the significant epistaxis was managed successfully with a Foley balloon catheter used to pack the posterior nasal cavity. The Foley catheter technique may be useful for managing and arresting sudden postextubation epistaxis.
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Affiliation(s)
- Kanta Kido
- Department of Dental Anesthesiology and Pain Management, Tohoku University Hospital, Sendai, Japan
| | - Yuki Shindo
- Department of Dental Anesthesiology and Pain Management, Tohoku University Hospital, Sendai, Japan
| | - Hitoshi Miyashita
- Department of Oral Medicine and Surgery, Division of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Tohoku University, Sendai, Japan
| | - Mikio Kusama
- Department of Oral and Maxillofacial Surgery, International University of Health and Welfare Hospital, Tochigi, Japan
| | - Shigekazu Sugino
- Department of Anesthesiology and Perioperative Medicine, Tohoku University Hospital, Sendai, Japan
| | - Eiji Masaki
- Department of Dental Anesthesiology and Pain Management, Tohoku University Hospital, Sendai, Japan
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16
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Miyashita H, Mikami T, Chopra N, Yamada T, Chernyavsky S, Rizk D, Cruz C. Do patients with cancer have a poorer prognosis of COVID-19? An experience in New York City. Ann Oncol 2020; 31:1088-1089. [PMID: 32330541 PMCID: PMC7172785 DOI: 10.1016/j.annonc.2020.04.006] [Citation(s) in RCA: 286] [Impact Index Per Article: 71.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 02/06/2023] Open
Affiliation(s)
- H Miyashita
- Department of Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Beth Israel, NY, USA.
| | - T Mikami
- Department of Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Beth Israel, NY, USA
| | - N Chopra
- Department of Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Beth Israel, NY, USA
| | - T Yamada
- Department of Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Beth Israel, NY, USA
| | - S Chernyavsky
- Department of Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Beth Israel, NY, USA
| | - D Rizk
- Department of Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Beth Israel, NY, USA
| | - C Cruz
- Department of Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Beth Israel, NY, USA
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17
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Yokota S, Tobita K, Hayashi T, Mashimo Y, Miyashita H, Yokoyama H, Nishimoto T, Shishido K, Yamanaka F, Mizuno S, Murakami M, Tanaka Y, Takahashi S, Saito S. P6524The comparison of radial artery occlusion rate after distal radial artery puncture between hemodialysis and non-hemodialysis patients. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1114] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
In recent years it has been attempted to use a distal radial artery (DRA) as a puncture site for cardiac catheterization and intervention. A patency of radial artery is important in hemodialysis patients because the radial artery is source as an arteriovenous shunt. However, the incidence of radial artery occlusion (RAO) is not known after DRA puncture.
Purpose
To compare RAO rates after DRA puncture between dialysis and non-dialysis patients.
Method
This was retrospective, observational and single center study. All consecutive 1,533 patients undergoing DRA puncture were analyzed. The primary endpoint is RAO rates. The secondary endpoint is composite bleeding adverse event rates. These endpoints were evaluated by a vascular echocardiography several hours or the next day after the procedure.
Result
Among 1,533 patients, 26 were dialysis patients and 1,504 were non-dialysis patients. 1,386 people (90.5%) succeeded in puncture. Radial artery occlusion occurred in 7 patients (0.4%), all of whom were non-dialysis patients. There was no significant difference of RAO rate in dialysis patients and non-dialysis patients.
Conclusion
When performing DRA puncture, the probability of radial artery occlusion is not higher in dialysis patients than non-dialysis patients. The DRA puncture may be one of the option as puncture site even in dialysis patients.
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Affiliation(s)
- S Yokota
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - K Tobita
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - T Hayashi
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - Y Mashimo
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - H Miyashita
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - H Yokoyama
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - T Nishimoto
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - K Shishido
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - F Yamanaka
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - S Mizuno
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - M Murakami
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - Y Tanaka
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - S Takahashi
- Shonan Kamakura General Hospital, Kamakura, Japan
| | - S Saito
- Shonan Kamakura General Hospital, Kamakura, Japan
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18
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Sato N, Koyama S, Mito T, Izumita K, Ishiko R, Yamauchi K, Miyashita H, Ogawa T, Kosaka M, Takahashi T, Sasaki K. Changes in oral health-related quality of life after oral rehabilitation with dental implants in patients following mandibular tumor resection. J Oral Sci 2019; 61:406-411. [PMID: 31341120 DOI: 10.2334/josnusd.18-0234] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Oral rehabilitation with prosthodontic treatment considerably influences the well-being and quality of life of patients after ablative oral tumor surgery. This study evaluated the effects of implant-supported prostheses (ISPs) on oral health-related quality of life (OHRQoL) and chewing ability in 10 patients who requested ISPs after mandibular oral tumor resection. OHRQoL was assessed using the Japanese version of the Oral Health Impact Profile (OHIP-49) before and one year after ISP placement. Chewing ability, including self-assessed masticatory ability and occlusal force, was examined at one year after ISP placement. The initial mean total OHIP-49 score of 65.3 ± 9.79 decreased to 46.0 ± 8.14 at one year after ISP placement. Mean OHIP-49 score decreased in all domains, whereas self-assessed masticatory ability increased within one year of ISP placement. There were no significant differences between prosthesis types with respect to the mean OHIP-49 score or self-assessed masticatory ability. In conclusion, ISP placement improves OHRQoL and the self-assessed masticatory ability. Moreover, the prosthesis type might not significantly affect OHRQoL.
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Affiliation(s)
- Naoko Sato
- Tohoku University Hospital, Maxillofacial Prosthetics Clinic
| | - Shigeto Koyama
- Tohoku University Hospital, Maxillofacial Prosthetics Clinic
| | - Takehiko Mito
- Tohoku University Hospital, Maxillofacial Prosthetics Clinic
| | | | - Risa Ishiko
- Tohoku University Hospital, Maxillofacial Prosthetics Clinic
| | - Kensuke Yamauchi
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry
| | - Hitoshi Miyashita
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry
| | - Takenori Ogawa
- Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine
| | - Moe Kosaka
- Tohoku University Hospital, Maxillofacial Prosthetics Clinic
| | - Tetsu Takahashi
- Division of Oral and Maxillofacial Surgery, Tohoku University Graduate School of Dentistry
| | - Keiichi Sasaki
- Division of Advanced Prosthodontics, Tohoku University Graduate School of Dentistry
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19
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Kido K, Toda S, Shindo Y, Miyashita H, Sugino S, Masaki E. Effects of low-dose ketamine infusion on remifentanil-induced acute opioid tolerance and the inflammatory response in patients undergoing orthognathic surgery. J Pain Res 2019; 12:377-385. [PMID: 30705603 PMCID: PMC6342226 DOI: 10.2147/jpr.s177098] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Purpose Remifentanil is associated with acute opioid tolerance that can lead to increased postoperative consumption of opioid analgesics. The purpose of this study was to determine whether a low dose of ketamine prevents remifentanil-induced acute opioid tolerance and affects the neutrophil–lymphocyte ratio (NLR), a newly recognized biomarker of inflammation. Materials and methods Forty patients undergoing orthognathic surgery were enrolled in this prospective, randomized, double-blind study and randomly assigned to intraoperative administration of one of the following anesthetic regimens: high-dose remifentanil (0.6 µg/kg/minute); low-dose remifentanil (0.2 µg/kg/minute); or high-dose remifentanil with ketamine (remifentanil 0.6 µg/kg/minute with 0.5 mg/kg ketamine just after induction followed by an intraoperative infusion of ketamine 5 µg/kg/minute until wound closure). Fentanyl by intravenous patient-controlled analgesia was used for postoperative pain control. Visual Analog Scale pain scores and fentanyl consumption were recorded in the first 24 hours postoperatively. Perioperative serum C-reactive protein level and NLR were also determined. Results Baseline characteristics were similar in the three study groups. There were no between-group differences in Visual Analog Scale pain scores during the study period. The high-dose remifentanil group had a significantly higher requirement for fentanyl than the other two groups. Addition of ketamine did not affect the C-reactive protein level but increased the NLR; this increase was associated with decreased fentanyl consumption. Conclusion High-dose intraoperative remifentanil induced postoperative acute opioid tolerance that was prevented by infusion of low-dose ketamine. Ketamine increased the postoperative NLR associated with decreased fentanyl requirement for postoperative pain control.
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Affiliation(s)
- Kanta Kido
- Department of Dental Anesthesiology and Pain Management, Tohoku University Hospital, Sendai, Miyagi, Japan,
| | - Shinichi Toda
- Department of Dental Anesthesiology and Pain Management, Tohoku University Hospital, Sendai, Miyagi, Japan,
| | - Yuki Shindo
- Department of Dental Anesthesiology and Pain Management, Tohoku University Hospital, Sendai, Miyagi, Japan,
| | - Hitoshi Miyashita
- Department of Oral Medicine and Surgery, Division of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Tohoku University, Sendai, Miyagi, Japan
| | - Shigekazu Sugino
- Department of Anesthesiology and Perioperative Medicine, Tohoku University Hospital, Sendai, Miyagi, Japan
| | - Eiji Masaki
- Department of Dental Anesthesiology and Pain Management, Tohoku University Hospital, Sendai, Miyagi, Japan,
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20
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Ouchi T, Morikawa S, Shibata S, Takahashi M, Yoshikawa M, Soma T, Miyashita H, Muraoka W, Kameyama K, Kawana H, Arima Y, Saya H, Okano H, Nakagawa T, Asoda S. Recurrent Spindle Cell Carcinoma Shows Features of Mesenchymal Stem Cells. J Dent Res 2018; 97:779-786. [PMID: 29494307 DOI: 10.1177/0022034518759278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study investigated a case of spindle cell carcinoma (SpCC) in tongue pathological lesions. The patient experienced a local recurrence and distant metastasis after surgical intervention. Although standard chemotherapy was administered, a granulomatous mass continued to develop. This aggressive growth led to survival of the tumor. Secondary debulking surgery was performed to improve the patient's quality of life at the request of the patient. Using a tissue sample derived from the secondary debulking surgery, we performed an analysis of the tumor's cell surface antigens, differentiation potential, metastatic ability, and inhibition potential by anticancer reagents. In vitro analysis revealed that the cell population grown under adherent culture conditions expressed the mesenchymal stem cell (MSC) markers CD73, CD90, and CD105. The cell line established from this SpCC contained colony-forming unit fibroblasts (CFU-Fs) and exhibited multipotent differentiation into several mesenchymal lineages, including bone, cartilage, and fat. The SpCC cells also displayed vigorous mobilization. These characteristics suggested that they had the differentiation potential of mesenchymal cells, especially MSCs, rather than that of epithelial cells. The surgical specimen analyzed in this study resisted the molecular target reagent cetuximab, which is an epidermal growth factor receptor inhibitor. This clinical insight revealed that chemotherapy-resistant SpCC cells have different characteristics compared to most other cancer cells, which are sensitive to cetuximab. Our cell death assay revealed that SpCC cell death was induced by the anticancer drug imatinib, which is known to inhibit protein tyrosine kinase activity of ABL, platelet-derived growth factor receptor α (PDGFRα), and KIT. Here, we report recurrent SpCC with characteristics of MSCs and potential for treatment with imatinib.
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Affiliation(s)
- T Ouchi
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan.,2 Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - S Morikawa
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan.,2 Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - S Shibata
- 2 Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - M Takahashi
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - M Yoshikawa
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan.,3 Division of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - T Soma
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - H Miyashita
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - W Muraoka
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - K Kameyama
- 4 Division of Diagnostic Pathology, Keio University School of Medicine, Tokyo, Japan
| | - H Kawana
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Y Arima
- 3 Division of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - H Saya
- 3 Division of Gene Regulation, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - H Okano
- 2 Department of Physiology, Keio University School of Medicine, Tokyo, Japan
| | - T Nakagawa
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - S Asoda
- 1 Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
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21
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Ishikawa Y, Nakayama K, Morimoto M, Mizutani A, Nakayama A, Toyoshima K, Hayashi A, Takagi S, Dairiki R, Miyashita H, Matsumoto S, Gamo K, Nomura T, Nakamura K. Synergistic anti-AML effects of the LSD1 inhibitor T-3775440 and the NEDD8-activating enzyme inhibitor pevonedistat via transdifferentiation and DNA rereplication. Oncogenesis 2017; 6:e377. [PMID: 28892104 PMCID: PMC5623902 DOI: 10.1038/oncsis.2017.76] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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: 04/09/2017] [Revised: 06/18/2017] [Accepted: 07/11/2017] [Indexed: 12/12/2022] Open
Abstract
Lysine-specific demethylase 1A (LSD1, KDM1A) specifically demethylates di- and monomethylated histones H3K4 and K9, resulting in context-dependent transcriptional repression or activation. We previously identified an irreversible LSD1 inhibitor T-3775440, which exerts antileukemic activities in a subset of acute myeloid leukemia (AML) cell lines by inducing cell transdifferentiation. The NEDD8-activating enzyme inhibitor pevonedistat (MLN4924, TAK-924) is an investigational drug with antiproliferative activities in AML, and is also reported to induce cell differentiation. We therefore tested the combination of these two agents in AML models. The combination treatment resulted in synergistic growth inhibition of AML cells, accompanied by enhanced transdifferentiation of an erythroid leukemia lineage into granulomonocytic-like lineage cells. In addition, pevonedistat-induced rereplication stress during the S phase was greatly augmented by concomitant treatment with T-3775440, as reflected by the increased induction of apoptosis. We further demonstrated that the combination treatment was markedly effective in subcutaneous tumor xenograft models as well as in a disseminated model of AML, leading to tumor eradication or prolonged survival in T-3775440/pevonedistat cotreated mice. Our findings indicate the therapeutic potential of the combination of LSD1 inhibitors and pevonedistat for the treatment of AML.
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Affiliation(s)
- Y Ishikawa
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - K Nakayama
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - M Morimoto
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - A Mizutani
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - A Nakayama
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - K Toyoshima
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - A Hayashi
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - S Takagi
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - R Dairiki
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - H Miyashita
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - S Matsumoto
- Integrated Technology Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - K Gamo
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - T Nomura
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - K Nakamura
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
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22
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Kouketsu A, Nogami S, Yamada-Fujiwara M, Nagai H, Yamauchi K, Mori S, Miyashita H, Kawai T, Matsui A, Kataoka Y, Satomi N, Ezoe Y, Abe S, Takeda Y, Tone T, Hirayama B, Kurobane T, Tashiro K, Yanagisawa Y, Takahashi T. Clinical evaluations of complete autologous fibrin glue, produced by the CryoSeal ® FS system, and polyglycolic acid sheets as wound coverings after oral surgery. J Craniomaxillofac Surg 2017; 45:1458-1463. [DOI: 10.1016/j.jcms.2017.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 05/11/2017] [Accepted: 06/02/2017] [Indexed: 11/15/2022] Open
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23
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Arita T, Morimoto M, Yamamoto Y, Miyashita H, Kitazawa S, Hirayama T, Sakamoto S, Miyamoto K, Adachi R, Iwatani M, Hara T. Prolyl-tRNA synthetase inhibition promotes cell death in SK-MEL-2 cells through GCN2-ATF4 pathway activation. Biochem Biophys Res Commun 2017; 488:648-654. [DOI: 10.1016/j.bbrc.2017.01.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 01/10/2017] [Indexed: 12/26/2022]
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24
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Abstract
We confirmed hepatocyte differentiation from embryonic stem (ES) cells in vitro. RT-PCR analysis revealed that a broad range of hepatic gene expression was observed in ES cells differentiated through formation of embryoid bodies (EBs) and its attachment culture. Quantitative PCR analysis revealed that hepatic gene expression related to early and late-stage liver development were enhanced through in vitro differentiation of ES cells. The presence of albumin-producing cells in the peripheral region of attached EBs was confirmed by immunocytochemical analysis. Future experiments will reveal the molecules that induce hepatocyte differentiation from ES cells in vitro. This research will provide systems for the investigation of mechanisms in liver development and establish a method of ES cell-based therapy for liver diseases.
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Affiliation(s)
- Hitoshi Miyashita
- Department of Surgery, Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Atsushi Suzuki
- Department of Surgery, Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Katashi Fukao
- Department of Surgery, Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Hiromitsu Nakauchi
- Department of Immunology, Institute of Basic Medical Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
| | - Hideki Taniguchi
- Department of Surgery, Institute of Clinical Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan
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Kouketsu A, Nogami S, Mori S, Yamauchi K, Miyashita H, Kawai T, Takahashi T. Clinical evaluations of complete autologous fibrin glue, produced by the CryoSeal ® FS System, and polyglycolic acid sheets as wound coverings after oral surgery. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.1168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Alsaegh MA, Miyashita H, Taniguchi T, Zhu SR. Odontogenic epithelial proliferation is correlated with COX-2 expression in dentigerous cyst and ameloblastoma. Exp Ther Med 2016; 13:247-253. [PMID: 28123497 DOI: 10.3892/etm.2016.3939] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 09/09/2016] [Indexed: 12/14/2022] Open
Abstract
Investigation of cyclooxygenase (COX)-2 in dentigerous cyst and ameloblastoma may help to improve understanding of the nature and behavior of odontogenic cysts and tumors, and in addition may eventually represent a definitive target for a pharmacological approach in the management of these lesions. The aim of this study was to evaluate COX-2 expression and its correlation with the proliferation of odontogenic epithelium in these lesions. Dentigerous cysts (n=16) and ameloblastomas (n=17) were evaluated. Detection of Ki-67 and COX-2 protein expression was conducted by immunohistochemistry. Data were statistically analyzed using Mann-Whitney U test and Spearman's rank correlation coefficient. No significant differences were found in the expression of Ki-67 and COX-2 between dentigerous cysts and ameloblastomas (P>0.05). A significant positive correlation (P=0.018) and highly significant positive correlation (P=0.004) were found between Ki-67 and COX-2 expression in the odontogenic epithelium of dentigerous cyst and ameloblastoma, respectively. COX-2 was expressed in the odontogenic epithelium of dentigerous cyst and ameloblastoma. It may contribute to local extension of these lesions by increasing the proliferation of their odontogenic epithelial cells.
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Affiliation(s)
- Mohammed Amjed Alsaegh
- Department of Oral and Maxillofacial Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China; Department of Oral and Maxillofacial Surgery, College of Dentistry, Ajman University, Al-Hulifat, Fujairah 2202, UAE; Department of Oral and Maxillofacial Surgery, College of Dentistry, University of Mosul, Mosul, Ninavah 41002, Iraq
| | - Hitoshi Miyashita
- Department of Oral and Maxillofacial Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China; Department of Oral Medicine and Surgery, Division of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Tohoku University, Sendai 980-8575, Japan
| | - Takahiro Taniguchi
- Department of Oral Medicine and Surgery, Division of Oral and Maxillofacial Surgery, Graduate School of Dentistry, Tohoku University, Sendai 980-8575, Japan
| | - Sheng Rong Zhu
- Department of Oral and Maxillofacial Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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27
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Ishikawa Y, Gamo K, Yabuki M, Takagi S, Toyoshima K, Nakayama K, Nakayama A, Morimoto M, Miyashita H, Dairiki R, Hikichi Y, Tomita N, Tomita D, Imamura S, Iwatani M, Kamada Y, Matsumoto S, Hara R, Nomura T, Tsuchida K, Nakamura K. A Novel LSD1 Inhibitor T-3775440 Disrupts GFI1B-Containing Complex Leading to Transdifferentiation and Impaired Growth of AML Cells. Mol Cancer Ther 2016; 16:273-284. [PMID: 27903753 DOI: 10.1158/1535-7163.mct-16-0471] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/18/2016] [Accepted: 11/16/2016] [Indexed: 11/16/2022]
Abstract
Dysregulation of lysine (K)-specific demethylase 1A (LSD1), also known as KDM1A, has been implicated in the development of various cancers, including leukemia. Here, we describe the antileukemic activity and mechanism of action of T-3775440, a novel irreversible LSD1 inhibitor. Cell growth analysis of leukemia cell lines revealed that acute erythroid leukemia (AEL) and acute megakaryoblastic leukemia cells (AMKL) were highly sensitive to this compound. T-3775440 treatment enforced transdifferentiation of erythroid/megakaryocytic lineages into granulomonocytic-like lineage cells. Mechanistically, T-3775440 disrupted the interaction between LSD1 and growth factor-independent 1B (GFI1B), a transcription factor critical for the differentiation processes of erythroid and megakaryocytic lineage cells. Knockdown of LSD1 and GFI1B recapitulated T-3775440-induced transdifferentiation and cell growth suppression, highlighting the significance of LSD1-GFI1B axis inhibition with regard to the anti-AML effects of T-3775440. Moreover, T-3775440 exhibited significant antitumor efficacy in AEL and AMKL xenograft models. Our findings provide a rationale for evaluating LSD1 inhibitors as potential treatments and indicate a novel mechanism of action against AML, particularly AEL and AMKL. Mol Cancer Ther; 16(2); 273-84. ©2016 AACR.
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MESH Headings
- Animals
- Antineoplastic Agents/chemistry
- Antineoplastic Agents/pharmacology
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Cell Transdifferentiation/drug effects
- Cluster Analysis
- Computational Biology/methods
- Disease Models, Animal
- Drug Resistance, Neoplasm
- Female
- Gene Expression Profiling
- Gene Knockdown Techniques
- Hematopoiesis/genetics
- Histone Demethylases/antagonists & inhibitors
- Histone Demethylases/genetics
- Histone Demethylases/metabolism
- Humans
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Mice
- Molecular Targeted Therapy
- Multiprotein Complexes/metabolism
- Protein Binding
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/metabolism
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Yoshinori Ishikawa
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Kanae Gamo
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Masato Yabuki
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Shinji Takagi
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Kosei Toyoshima
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Kazuhide Nakayama
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Akiko Nakayama
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Megumi Morimoto
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Hitoshi Miyashita
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Ryo Dairiki
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Yukiko Hikichi
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Naoki Tomita
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Daisuke Tomita
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Shinichi Imamura
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Misa Iwatani
- Biomolecular Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Yusuke Kamada
- Biomolecular Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Satoru Matsumoto
- Integrated Technology Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Ryujiro Hara
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Toshiyuki Nomura
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Ken Tsuchida
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
| | - Kazuhide Nakamura
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan.
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Kouketsu A, Nogami S, Fujiwara M, Mori S, Yamauchi K, Hashimoto W, Miyashita H, Kurihara J, Kawai T, Higuchi K, Takahashi T. Clinical evaluations of autologous fibrin glue and polyglycolic acid sheets as oral surgical wound coverings after partial glossectomy. J Craniomaxillofac Surg 2016; 44:964-8. [PMID: 27341770 DOI: 10.1016/j.jcms.2016.05.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 04/18/2016] [Accepted: 05/31/2016] [Indexed: 11/24/2022] Open
Abstract
Polyglycolic acid (PGA) sheets and commercial fibrin glue are commonly used to cover open wound surfaces in oral surgery. Compared to commercial fibrin glue composed of pooled allogeneic blood, autologous fibrin glue is less expensive and poses lower risks of viral infection and allergic reaction. Here, we evaluated postoperative pain, scar contracture, ingestion, tongue dyskinesia, and postoperative bleeding in 24 patients who underwent partial glossectomy plus the application of a PGA sheet and an autologous fibrin glue covering (autologous group) versus 11 patients in whom a PGA sheet and commercial fibrin glue were used (allogeneic group). The evaluated clinical measures were nearly identical in both groups. Remarkable wound surface granulation was recognized in two cases in the autologous group. No complications were observed in either group, including viral infection or allergic reaction. Abnormal postoperative bleeding in the wound region was observed in one case in the allogeneic group. Coagulation and adhesion of the autologous fibrin glue were equivalent to those of conventional therapy with a PGA sheet and commercial fibrin glue. Thus, our results show that covering wounds with autologous fibrin glue and PGA sheets may help avoid the risks of viral infection and allergic reaction in partial glossectomy cases.
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Affiliation(s)
- Atsumu Kouketsu
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan.
| | - Shinnosuke Nogami
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Minami Fujiwara
- Division of Blood Transfusion and Cell Processing, Tohoku University Hospital, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8574, Japan
| | - Shiro Mori
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Kensuke Yamauchi
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Wataru Hashimoto
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Hitoshi Miyashita
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Jun Kurihara
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Tadashi Kawai
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Keisuke Higuchi
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
| | - Tetsu Takahashi
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi 980-8575, Japan
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29
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Ogura M, Yamamoto Y, Miyashita H, Kumamoto H, Fukumoto M. Quantitative analysis of nuclear shape in oral squamous cell carcinoma is useful for predicting the chemotherapeutic response. Med Mol Morphol 2015; 49:76-82. [PMID: 26439725 DOI: 10.1007/s00795-015-0121-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 09/24/2015] [Indexed: 10/23/2022]
Abstract
The number of people afflicted with oral carcinoma in Japan has increased in recent years. Although preoperative neoadjuvant therapy with cisplatin and 5-fluorouracil are performed, chemotherapeutic response varies widely among the patients. With the aim of establishing novel indices to predict the therapeutic response to chemotherapy, we investigated the relationship between morphological features of pre-treatment oral carcinoma nuclei and the chemotherapeutic response using quantifying morphology of cell nuclei in pathological specimen images. We measured 4 morphological features of the nucleus of oral squamous cell carcinoma cases classified by the response to chemotherapy: No Change (NC) group, Partial Response (PR) group and Complete Response (CR) group. Furthermore, we performed immunohistochemical staining for p53 and Ki67 and calculated their positive rates in cancer tissues. Compactness and symmetry of the nucleus were significantly higher and nuclear edge response was significantly lower in cancer cells with lower chemotherapeutic responses compared high chemotherapeutic responders. As for positive rates of p53 and Ki67, there were no significant differences between any of the response groups. Morphological features of cancer cell nuclei in pathological specimens are sensitive predictive factors for the chemotherapeutic response to oral squamous cell carcinoma.
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Affiliation(s)
- Maki Ogura
- Department of Pathology, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.,Medical Solutions Division, NEC Corporation, Tokyo, Japan
| | - Yoichiro Yamamoto
- Department of Pathology, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.,Department of Pathology, Shinshu University School of Medicine, Nagano, Japan
| | - Hitoshi Miyashita
- Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Hiroyuki Kumamoto
- Division of Oral Pathology, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan
| | - Manabu Fukumoto
- Department of Pathology, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8575, Japan.
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30
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Miyashita H, Shiba H, Kawana H, Nakahara T. Clinical utility of three-dimensional SPECT/CT imaging as a guide for the resection of medication-related osteonecrosis of the jaw. Int J Oral Maxillofac Surg 2015; 44:1106-9. [PMID: 26008732 DOI: 10.1016/j.ijom.2015.05.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 05/01/2015] [Indexed: 11/16/2022]
Abstract
In recent years, proactive surgical treatment has been reported to be effective for medication-related osteonecrosis of the jaw (MRONJ). However, an uncertain resection entails the risk of recurrence, whereas an extensive surgical procedure may lead to a marked reduction in quality of life as a result of reduced masticatory function and poor cosmesis. Therefore, radiological assessment can be helpful to accurately localize MRONJ before surgery. The integrated single-photon emission computed tomography and computed tomography system (SPECT/CT) allows oral and maxillofacial surgeons to identify an area of MRONJ, especially when three-dimensional (3D) SPECT and CT fusion images are offered. A patient for whom 3D SPECT and CT image fusion (as developed in the radiology department of the study institution) contributed to determining the extent of the lesion, thereby leading to a favourable patient prognosis, is reported herein. There was exact correlation between the histological and radiological results.
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Affiliation(s)
- H Miyashita
- Division of Oral and Maxillofacial Surgery, Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - H Shiba
- Division of Oral and Maxillofacial Surgery, Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - H Kawana
- Division of Oral and Maxillofacial Surgery, Department of Dentistry and Oral Surgery, Keio University School of Medicine, Tokyo, Japan
| | - T Nakahara
- Department of Radiology, Keio University School of Medicine, Tokyo, Japan.
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31
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Alsaegh MA, Miyashita H, Zhu SR. Expression of human papillomavirus is correlated with Ki-67 and COX-2 expressions in keratocystic odontogenic tumor. Pathol Oncol Res 2014; 21:65-71. [PMID: 24831259 DOI: 10.1007/s12253-014-9789-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 04/20/2014] [Indexed: 01/18/2023]
Abstract
The aim of the current study was to investigate the presence of human papillomavirus (HPV) and evaluate its association with Ki-67 and cyclooxygenase-2 (COX-2) expressions in keratocystic odontogenic tumor (KCOT). Nineteen cases were included in the present study. Conventional PCR method and immunohistochemical analysis were performed for the detection of HPV-DNA and HPV-L1 capsid protein. Moreover, the expressions of Ki-67 and COX-2 proteins were analyzed immunohistochemically. HPV-DNA was detected in 36.8% (7/19) of tumor samples, whilst HPV-L1 protein was identified in 68.4% (13/19) of them. The Kappa coefficient statistical test showed a moderate agreement (κ 0.424) between PCR and IHC assays for HPV detection. Expression of HPV-DNA was positively correlated with Ki-67 and COX-2 expressions (p < 0.05), whereas HPV-L1 positive staining was positively correlated with COX-2 (p < 0.05) and highly associated with those of Ki-67 (p < 0.01). There was no significant correlation between the presence of HPV and the recurrence of the studied lesions. The results of the current study showed that active HPV infection was present in the odontogenic epithelium of KCOT, and it was associated with increased proliferation rate and COX-2 expression. These findings suggest that HPV may have a role in the pathogenesis and aggressiveness of KCOT. Based on these conclusions, we recommend further investigations of HPV vaccine or antiviral therapy and COX-2 inhibitors as nonsurgical options in the prevention and management of KCOT.
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Affiliation(s)
- Mohammed Amjed Alsaegh
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China,
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32
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Eguchi K, Murakami A, Horaguchi T, Kato M, Miyashita H, Kario K. Percutaneous transluminal angioplasty for peripheral artery disease confers cardiorenal protection. J Hum Hypertens 2013; 28:51-5. [DOI: 10.1038/jhh.2013.37] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2013] [Revised: 03/18/2013] [Accepted: 04/03/2013] [Indexed: 11/09/2022]
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Hikichi Y, Honda K, Hikami K, Miyashita H, Kaieda I, Murai S, Uchiyama N, Hasegawa M, Kawamoto T, Sato T, Ichikawa T, Cao S, Nie Z, Zhang L, Yang J, Kuida K, Kupperman E. TAK-960, a novel, orally available, selective inhibitor of polo-like kinase 1, shows broad-spectrum preclinical antitumor activity in multiple dosing regimens. Mol Cancer Ther 2012; 11:700-9. [PMID: 22188812 DOI: 10.1158/1535-7163.mct-11-0762] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Polo-like kinase 1 (PLK1) is a serine/threonine protein kinase involved in key processes during mitosis. Human PLK1 has been shown to be overexpressed in various human cancers, and elevated levels of PLK1 have been associated with poor prognosis, making it an attractive target for anticancer therapy. TAK-960 [4-[(9-cyclopentyl-7,7-difluoro-5-methyl-6-oxo-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,4]diazepin-2-yl)amino]-2-fluoro-5-methoxy-N-(1-methylpiperidin-4-yl) benzamide] is a novel, investigational, orally bioavailable, potent, and selective PLK1 inhibitor that has shown activity in several tumor cell lines, including those that express multidrug-resistant protein 1 (MDR1). Consistent with PLK1 inhibition, TAK-960 treatment caused accumulation of G(2)-M cells, aberrant polo mitosis morphology, and increased phosphorylation of histone H3 (pHH3) in vitro and in vivo. TAK-960 inhibited proliferation of multiple cancer cell lines, with mean EC(50) values ranging from 8.4 to 46.9 nmol/L, but not in nondividing normal cells (EC(50) >1,000 nmol/L). The mutation status of TP53 or KRAS and MDR1 expression did not correlate with the potency of TAK-960 in the cell lines tested. In animal models, oral administration of TAK-960 increased pHH3 in a dose-dependent manner and significantly inhibited the growth of HT-29 colorectal cancer xenografts. Treatment with once daily TAK-960 exhibited significant efficacy against multiple tumor xenografts, including an adriamycin/paclitaxel-resistant xenograft model and a disseminated leukemia model. TAK-960 has entered clinical evaluation in patients with advanced cancers.
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MESH Headings
- 4-Aminobenzoic Acid/chemistry
- 4-Aminobenzoic Acid/pharmacology
- Administration, Oral
- Animals
- Antineoplastic Agents/chemistry
- Antineoplastic Agents/pharmacokinetics
- Antineoplastic Agents/pharmacology
- Azepines/chemistry
- Azepines/pharmacology
- Biological Availability
- Cell Cycle Checkpoints/drug effects
- Cell Cycle Proteins/antagonists & inhibitors
- Cell Cycle Proteins/metabolism
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Dose-Response Relationship, Drug
- Drugs, Investigational/chemistry
- Drugs, Investigational/pharmacokinetics
- Drugs, Investigational/pharmacology
- Female
- HT29 Cells
- Histones/metabolism
- Humans
- K562 Cells
- Mice
- Mice, Inbred BALB C
- Mice, Inbred NOD
- Mice, Nude
- Mice, SCID
- Molecular Structure
- Neoplasms/drug therapy
- Neoplasms/metabolism
- Neoplasms/pathology
- Phosphorylation/drug effects
- Protein Kinase Inhibitors/chemistry
- Protein Kinase Inhibitors/pharmacokinetics
- Protein Kinase Inhibitors/pharmacology
- Protein Serine-Threonine Kinases/antagonists & inhibitors
- Protein Serine-Threonine Kinases/metabolism
- Proto-Oncogene Proteins/antagonists & inhibitors
- Proto-Oncogene Proteins/metabolism
- Xenograft Model Antitumor Assays
- Polo-Like Kinase 1
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Affiliation(s)
- Yuichi Hikichi
- Takeda Pharmaceutical Company Ltd., 26-1 Muraoka Higashi 2-chome, Fujisawa, Kanagawa 251-8555, Japan.
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Hirata T, Kobayashi T, Wada A, Ueda T, Fujikawa T, Miyashita H, Ikeda T, Tsukamoto S, Nohara T. Anti-obesity compounds in green leaves of Eucommia ulmoides. Bioorg Med Chem Lett 2011; 21:1786-91. [DOI: 10.1016/j.bmcl.2011.01.060] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2010] [Revised: 01/07/2011] [Accepted: 01/18/2011] [Indexed: 11/26/2022]
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35
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Miyashita H, Nakagawa H, Kobayashi K, Hoshi M, Matsumoto M. Effects of 17β-estradiol and bisphenol A on the formation of reproductive organs in planarians. Biol Bull 2011; 220:47-56. [PMID: 21385957 DOI: 10.1086/bblv220n1p47] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Planarians have a remarkable capacity for regeneration after ablation, and they reproduce asexually by fission. However, some planarians can also reproduce and maintain their sexual organs. During the regenerative process, their existing sexual organs degenerate and new ones develop. However, little is known about hormonal regulation during the development of reproductive organs in planarians. In this study, we investigated the effects of 17β-estradiol (a steroid) and bisphenol A (an endocrine disrupter) on the formation of sexual organs in the hermaphroditic planarian Dugesia ryukyuensis. Under control conditions, all worm tissues regenerated into sexual planarians with sexual organs within 4 weeks after ablation. However, in the presence of bisphenol A or 17β-estradiol, although they apparently regenerated into sexual planarians, the yolk glands, which are one of the female sexual organs, failed to regenerate even 7 weeks after ablation. These data suggest that planarians have a steroid hormone system, which plays a key role in the formation and maturation of sexual organs.
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Affiliation(s)
- Hitoshi Miyashita
- Department of Biological Sciences and Informatics, Keio University, 3-14-1, Hiyoshi, Kouhoku-ku, Yokohama, Japan
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36
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Uchiyama N, Kawamoto T, Kaieda I, Honda K, Miyashita H, Hikami K, Hikichi Y, Kuida K. 503 In vitro characterization of TAK-960, a novel, small molecule inhibitor of Polo-like kinase 1. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)72210-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Yago K, Kizu H, Miyashita H, Shiba H, Kasazaki Y, Asanami S. Bisphosphonate-related osteonecrosis of the jaw for which a surgical procedure was performed. Int J Oral Maxillofac Surg 2009. [DOI: 10.1016/j.ijom.2009.03.540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Miyashita H, Mori S, Fukumoto Y, Sato A, Fukumoto M, Kawamura H. Loss of heterozygosity of the PTH/PTHrP type 1 receptor in oral squamous cell carcinoma. Mol Med Rep 2008; 1:821-5. [PMID: 21479490 DOI: 10.3892/mmr_00000034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Parathyroid hormone-related protein (PTHrP) is produced by various types of carcinomas, and is an important factor in the development of bone metastasis. The coexpression of PTHrP and parathyroid hormone/parathyroid hormone-related protein type 1 receptor (PTHR1) in cancer predicts poor patient survival. While genetic transformations of thyroid hormone receptor β (THRβ) have been reported as being associated with reduced survival in patients with oral squamous cell carcinoma (OSCC), the details of transformations in PTHR1 have not been extensively analyzed. The aim of this study was to examine loss of heterozygosity (LOH) and microsatellite instability (MSI) in PTHR1 in OSCC. Analysis of genetic transformations using microdissected clinical tissues revealed that the proportions of LOH and MSI in PTHR1 were 30.0 (3/10) and 20.0% (2/10), respectively. Furthermore, the proportion of carcinomas which developed with LOH on the chromosome of PTHR1 and without LOH for tumor suppressor genes such as p53, FHIT, APC, BRCA1, BRCA2 and DCC was 20.0% (2/10). These observations suggest that transformations in PTHR1 may be involved in carcinogenesis in human OSCC.
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Affiliation(s)
- Hitoshi Miyashita
- Division of Maxillofacial Surgery, Department of Oral Medicine and Surgery, Graduate School of Dentistry, Tohoku University, Sendai 980-8575, Japan.
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Kashiyama Y, Miyashita H, Ohkubo S, Ogawa NO, Chikaraishi Y, Takano Y, Suga H, Toyofuku T, Nomaki H, Kitazato H, Nagata T, Ohkouchi N. Evidence of global chlorophyll d. Science 2008; 321:658. [PMID: 18669855 DOI: 10.1126/science.1158761] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Although analyses of chlorophyll d (Chl d)-dominated oxygenic photosystems have been conducted since their discovery 12 years ago, Chl d distribution in the environment and quantitative importance for aquatic photosynthesis remain to be investigated. We analyzed the pigment compositions of surface sediments and detected Chl d and its derivatives from diverse aquatic environments. Our data show that the viable habitat for Chl d-producing phototrophs extends across salinities of 0 to 50 practical salinity units and temperatures of 1 degrees to 40 degrees C, suggesting that Chl d production can be ubiquitously observed in aquatic environments that receive near-infrared light. The relative abundances of Chl d derivatives over that of Chl a derivatives in the studied samples are up to 4%, further suggesting that Chl d-based photosynthesis plays a quantitatively important role in the aquatic photosynthesis.
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Affiliation(s)
- Y Kashiyama
- Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, Yokosuka 237-0061, Japan.
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Abstract
BACKGROUND There is a range of treatment options for the management of the pulp in extensively decayed teeth. These include direct and indirect pulp capping, pulpotomy or pulpectomy. If the tooth is symptomatic or if there are periapical bone changes, then endodontic treatment is required. However, if the tooth is asymptomatic but the caries is extensive, there is no consensus as to the best method of management. In addition, there has been a recent move towards using alternative materials and methods such as the direct or indirect placement of bonding agents and mineral trioxide aggregate. Most studies have investigated the management of asymptomatic carious teeth with or without an exposed dental pulp using various capping materials (e.g. calcium hydroxide, Ledermix, Triodent, Biorex, etc.). However, there is no long term data regarding the outcome of management of asymptomatic, carious teeth according to different regimens. OBJECTIVES This study aims to assess the effectiveness of techniques used to treat asymptomatic carious teeth and maintain pulp vitality. SEARCH STRATEGY Electronic searches of the following databases were undertaken: The Cochrane Oral Health Group's Trials Register (March 2006), the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2006, Issue 1), MEDLINE (1966 to week 4, February 2006), EMBASE (1974 to 13 March 2006), National Research Register (March 2006), Science Citation Index - SCISEARCH (1981 to March 2006). Detailed search strategies were developed for each database. Handsearching and screening of reference lists were undertaken. There was no restriction with regard to language of publication. SELECTION CRITERIA Studies included were randomised controlled trials (RCTs). Asymptomatic vital permanent teeth with extensive caries were included. Studies were those which compared techniques to maintain pulp vitality. Outcome measures included clinical success and adverse events. DATA COLLECTION AND ANALYSIS Data were independently extracted by three review authors. Authors were contacted for details of randomisation and withdrawals and a quality assessment was carried out. The Cochrane Oral Health Group's statistical guidelines were followed. MAIN RESULTS Only four RCTs were identified. Interventions examined included: Ledermix, glycerrhetinic acid/antibiotic mix, zinc oxide eugenol, calcium hydroxide, Cavitec, Life, Dycal, potassium nitrate, dimethyl isosorbide, and polycarboxylate cement. Only one study showed a statistically significant finding; potassium nitrate/dimethyl isosorbide/polycarboxylate cement resulted in fewer clinical symptoms than potassium nitrate/polycarboxylate cement or polycarboxylate cement alone when used as a capping material for carious pulps. AUTHORS' CONCLUSIONS It was disappointing that there were so few studies which could be considered as being suitable for inclusion in this review. The findings from this review do not suggest that there should be any significant change from accepted conventional practice procedures when the pulp of the carious tooth is considered. Further well designed RCTs are needed to investigate the potential of contemporary materials which may be suitable when used in the management of carious teeth. It is recognised that it is difficult to establish the 'ideal' clinical study when ethical approval for new materials must be sought and strict attention to case selection, study protocol and interpretation of data is considered. It is also not easy to recruit sufficient numbers of patients meeting the necessary criteria.
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Shimmura S, Miyashita H, Uchino Y, Taguchi T, Kobayashi H, Shimazaki J, Tanaka J, Tsubota K. Microkeratome assisted deep lamellar keratoprosthesis. Br J Ophthalmol 2006; 90:826-9. [PMID: 16597665 PMCID: PMC1857140 DOI: 10.1136/bjo.2006.090324] [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] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIMS To establish a keratoprosthesis (Kpro) surgical technique that maintains an intact superficial corneal layer. METHODS A manual microkeratome (Moria LSK-1) was used to create a 130 mum flap of approximately 10 mm diameter in the right eye of Japanese white rabbits. The stoma beneath the flap area was dissected before the removal of a 5.0 mm stromal disc. A 5.0 mm collagen I immobilised poly(vinyl alcohol) (COL-PVA) disc was placed on the exposed posterior stroma close to Descemet's membrane. The flap was repositioned and fixed using 10-0 nylon sutures, which were removed 2 days following surgery. The corneas were followed clinically by slit lamp microscopy and photographs. Rabbits were sacrificed after 6 months, and the transplanted corneas were examined histologically by haematoxylin and eosin staining and immunohistochemistry against vimentin and alpha-smooth muscle actin (alpha-SMA). RESULTS The transplanted COL-PVA discs remained transparent throughout the study, with no complications related to the flap or overlying epithelium. The interface between COL-PVA and Descemet's membrane remained clear without signs of opacification caused by scarring or cellular deposition. Pathology revealed the intact COL-PVA polymer in the posterior stroma, with minimal cellular infiltration along the anterior and posterior interfaces. Immunohistology shows vimentin and alpha-SMA staining at levels comparable to lamellar keratoplasty control. CONCLUSIONS Microkeratome assisted deep lamellar keratoprosthesis may be a safe technique for the transplantation of artificial hydrogels for therapeutic purposes.
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Affiliation(s)
- S Shimmura
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
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Yamaguchi Y, Miyashita H, Tsunekawa H, Mouri A, Kim HC, Saito K, Matsuno T, Kawashima S, Nabeshima T. Effects of a Novel Cognitive Enhancer, Spiro[imidazo-[1,2-a]pyridine-3,2-indan]-2(3H)-one (ZSET1446), on Learning Impairments Induced by Amyloid-β1–40 in the Rat. J Pharmacol Exp Ther 2006; 317:1079-87. [PMID: 16474004 DOI: 10.1124/jpet.105.098640] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We have previously shown that intracerebroventricular (i.c.v.) infusion of amyloid-beta (Abeta)1-40 produces oxidative stress and cholinergic dysfunction, as well as learning and memory deficits, in rats. In the present study, effects of a newly synthesized azaindolizinone derivative, spiro[imidazo[1,2-a]pyridine-3,2-indan]-2(3H)-one (ZSET1446), were assessed in rats with learning deficits induced by Abeta1-40 or scopolamine. The i.c.v. infusion of Abeta1-40 caused impairments in spontaneous alternation behavior in a Y-maze task, spatial reference and short-term memory in a water-maze task, and retention of passive-avoidance learning. Abeta1-40-infused rats also showed reduction in choline acetyltransferase (ChAT) activity in the medial septum and hippocampus, but not in the basal forebrain and cortex, and a decrease in glutathione S-transferase (GST)-like immunoreactivity in the cortex. Nicotine-stimulated acetylcholine (ACh) release in Abeta1-40-infused rats was lower than that in vehicle-infused rats. Oral administration of ZSET1446 at the dose range of 0.01 to 1 mg/kg ameliorated Abeta1-40-induced learning impairment in Y-maze, water-maze, and passive-avoidance tasks. ZSET1446 reversed the decrease of ChAT activity in the medial septum and hippocampus, GST-like immunoreactivity in the cortex, and nicotine-stimulated ACh release of Abeta1-40-treated rats to the levels of vehicle-infused control rats. Furthermore, 0.001 to 0.1 mg/kg ZSET1446 showed ameliorative effects on learning impairments caused by scopolamine in a passive-avoidance task. These results suggest that ZSET1446 may be a potential candidate for development as a therapeutic agent to manage cognitive impairment associated with conditions such as Alzheimer's disease.
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Affiliation(s)
- Yoshimasa Yamaguchi
- Research Laboratory, Zenyaku Kogyo Co., Ltd., 2-33-7 Ohizumi-machi, Nerima-ku, Tokyo 178-0062, Japan.
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Shimmura S, Miyashita H, Konomi K, Shinozaki N, Taguchi T, Kobayashi H, Shimazaki J, Tanaka J, Tsubota K. Transplantation of corneal endothelium with Descemet's membrane using a hyroxyethyl methacrylate polymer as a carrier. Br J Ophthalmol 2005; 89:134-7. [PMID: 15665339 PMCID: PMC1772492 DOI: 10.1136/bjo.2004.050591] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIMS To evaluate the histology and function of Descemet's membrane transplanted with intact endothelium. METHODS Japanese white rabbits and human eyebank eyes were used as donors and recipients of Descemet's membrane transplantation. Donor endothelium was hydrodissected by injecting indocyanine green from a limbal incision, and then processed as a corneal scleral button. A 6 mm diameter donor sheet was trephined, and folded in half using a 6 mm diameter polymer as a carrier. Recipient endothelium was also hydrodissected from the limbus using trypan blue to stain the Descemet's membrane. Continuous curvilinear descemetorhexis (CCD) was performed to remove a circular section of the Descemet's membrane using a 27 gauge cystotome. Donor tissue was inserted into the anterior chamber through a 5 mm limbal incision and apposed to the host stroma. Polymers were removed following transplantation. Similar surgical procedures were performed in both rabbits and eyebank eyes. Haematoxylin eosin stains were performed after 28 days in rabbits, and eyebank eyes were fixed immediately following surgery for endothelial cell counts. RESULTS Rabbit control eyes demonstrated stromal oedema caused by loss of Descemet's membrane, whereas transplanted eyes had clear corneas. The mean (standard deviation) pachymetry of operated eyes was 376.6 (SD 32.5) mum compared with 389.6 (SD 25.1) mum in the unoperated eye. Mean endothelial density immediately following surgery in eyebank eyes was 2749 (SD 288) cells/mm(2). CONCLUSIONS Transplantation of Descemet's membrane by CCD produces a functional graft with an optically clear interface similar to control cornea.
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Affiliation(s)
- S Shimmura
- Department of Opthalmology, Toyko Dental College, 5-11-13 Sugano, Ichikiawa, Chiba 272-8513, Japan.
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Kouchi Y, Shigeta M, Fujita Y, Miyashita H. [Large cell neuroendocrine carcinoma of the lung; report of a case]. Kyobu Geka 2004; 57:893-6. [PMID: 15366578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
Large cell neuroendocrine carcinoma (LCNEC) is a rare type of lung cancer and it has the least favorable prognosis. We describe our experience with a patient in whom LCNEC was diagnosed. A 65-year-old man who was pointed out abnormal shadow on a chest X-ray film in the health screening was admitted to the hospital. Chest X-ray film and computed tomography (CT) scan showed a 4 x 3 cm mass in the left-S2. Poorly differentiated adenocarcinoma of the left lung was suspected based on CT guided cytology. An upper lobectomy of the left lung and dessection of the mediastinal lymph nodes were performed. This tumor showed light microscopic and immunohistochemical evidences of neuroendocrine differentiation. Further it showed positive responses in neuronspecific enolase (NSE), synaptophysin, and chromogranin-A stainings. Pathological diagnosis was stage IB (pT2N0M0) LCNEC. There have been no findings of tumor recurrence 22 months after the operation.
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Affiliation(s)
- Yasuhiro Kouchi
- Department of Surgery, Social Insurance Tokuyama Central Hospital, Shunan, Japan
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Abstract
Cultured rat keratinocyte sheets form hair follicles in combination with rat vibrissa dermal papillae when they are transplanted subcutaneously in syngeneic rats and athymic mice. In the present study, the histologic details of these induced follicles were analyzed by preparing cultured sheets mixed with normal rat keratinocytes and green fluorescent protein (GFP)-transgenic rat keratinocytes. Histologic examination demonstrated that some induced follicles maintained their size and morphology for at least 18 weeks, whereas others decreased in size and others totally differentiated into cornified structures between 3 and 6 weeks. The percentage of the grafts with GFP-positive cells decreased during the same period. This finding suggests that some GFP-positive cells were transient-amplifying cells that turned into terminally differentiated cells and were lost during this period. Some large follicles and some small follicles maintained their hair-producing ability and the proliferative activity in their hair matrix for 18 weeks. In addition, one 6-week-old follicle contained label-retaining cells in the outer root sheath. Seven of 25 follicles induced from chimera epithelium contained both GFP-positive cells and GFP-negative cells. These results suggest that stem cells are present in the induced follicle and the induced follicle consists of polyclonally derived cells. The presence of early anagen-like large follicles at week 6 and 9 and a telogen-like small follicle at week 18 also suggests that hair-growth cycle phases proceeded in the induced follicles. In conclusion, the follicles induced in the cultured keratinocyte sheets maintained hair-producing ability and proliferative activity for at least 18 weeks. This and the presence of label-retaining cells suggest that there are stem cells in the induced follicles, which seem to have a hair-growth cycle.
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Affiliation(s)
- H Miyashita
- Graduate School of Science and Technology, Chiba University, Chiba, Japan
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Ikeda SI, Sanuki R, Miyachi H, Miyashita H, Taniguchi M, Odashima K. Ni-Catalyzed, ZnCl2-Assisted Domino Coupling of Enones, Alkynes, and Alkenes. J Am Chem Soc 2004; 126:10331-8. [PMID: 15315447 DOI: 10.1021/ja047580a] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A Ni(0)/ZnCl(2) system effectively promotes the coupling of enones and alkene-tethered alkynes. In the reaction with 1,6-enynes, the oxidative cyclization of Ni(0) species on enones across the alkyne part followed by ZnCl(2)-promoted cleavage generates alkenylnickel intermediates. Subsequent migratory insertion of the tethered alkene occurs with 5-exo-cyclization. When the resulting sigma-alkylnickel intermediates have beta-hydrogen atoms, the reaction terminates by beta-hydrogen elimination to provide cyclopentane derivatives. On the other hand, a sigma-alkylnickel intermediate that does not have beta-hydrogen atoms undergoes the insertion of a second alkene unit to cause a domino effect via a three-fold C-C bond formation process with and without the cleavage of one C-C bond.
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Affiliation(s)
- Shin-ichi Ikeda
- Contribution from the Graduate School of Pharmaceutical Sciences, Nagoya City University, Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan
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Miyachi K, Ihara A, Hankins RW, Murai R, Maehiro S, Miyashita H. Efficacy of imatinib mesylate (STI571) treatment for a patient with rheumatoid arthritis developing chronic myelogenous leukemia. Clin Rheumatol 2004; 22:329-32. [PMID: 14576993 DOI: 10.1007/s10067-003-0716-3] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2002] [Accepted: 02/28/2003] [Indexed: 11/25/2022]
Abstract
We report on an 80-year-old man with rheumatoid arthritis (RA) who presented with chronic myelogenous leukemia (CML). Five years after the onset of RA, the CML diagnosis was made. The patient was treated for CML with 300 mg of imatinib mesylate (STI; signal transduction inhibitor 571) for 8 weeks. Laboratory tests showed that the C-reactive protein level, percentage of cells exhibiting the Philadelphia chromosome (Ph1), WBC count, and Lansbury index for RA all dropped respectively from 7.5 mg/dl to 1.0 mg/dl, 74.9% to 1%, 25, 100/microl to 9900/microl, and 51% to 14%. Administration of imatinib mesylate is felt to be effective in treating not only CML but also RA in the active stage.
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MESH Headings
- Aged
- Aged, 80 and over
- Antineoplastic Agents/administration & dosage
- Arthritis, Rheumatoid/complications
- Arthritis, Rheumatoid/diagnosis
- Benzamides
- Dose-Response Relationship, Drug
- Drug Administration Schedule
- Follow-Up Studies
- Humans
- Imatinib Mesylate
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/complications
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Male
- Pain Measurement/drug effects
- Piperazines/administration & dosage
- Pyrimidines/administration & dosage
- Range of Motion, Articular/drug effects
- Risk Assessment
- Severity of Illness Index
- Treatment Outcome
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Affiliation(s)
- K Miyachi
- Higashiterao Second Clinic, Kanagawa, Yokohama.
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Miyashita H, Uchida T, Mori S, Echigo S, Motegi K. Expression status of Pin1 and cyclins in oral squamous cell carcinoma: Pin1 correlates with Cyclin D1 mRNA expression and clinical significance of cyclins. Oncol Rep 2003. [DOI: 10.3892/or.10.4.1045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Miyashita H, Uchida T, Mori S, Echigo S, Motegi K. Expression status of Pin1 and cyclins in oral squamous cell carcinoma: Pin1 correlates with Cyclin D1 mRNA expression and clinical significance of cyclins. Oncol Rep 2003; 10:1045-8. [PMID: 12792768] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
Phosphorylation on serine or threonine residue preceding proline (Ser/Thr-Pro) is a key regulatory mechanism. The conformation of certain phosphorylated Ser/Thr-Pro bonds is regulated specifically by the prolyl isomerase Pin1. It has been reported that Pin1 is strikingly overexpressed in a subset of human tumors. A differential-display screen reveals that Pin1 increases the transcription of several beta-catenin target genes, including those encoding cyclin D1 and c-Myc. Pin1 cooperates with Ras signaling in increasing the transcriptional activity of c-Jun towards cyclin D1. We have previously reported that Pin1 is overexpressed in oral squamous cell carcinoma (OSCC) and its level correlates with Cyclin D1 expression. However, the analysis of the relationship between Pin1 and other cyclin genes has not been demonstrated in human OSCC. We examined Pin1 mRNA and protein expressions in OSCC cell lines, and analyzed Pin1/cyclins expression by RT-PCR. We report that Pin1 mRNA correlates with Cyclin D1 mRNA expression and the expression of many cyclin genes is associated with lymph node metastasis in OSCC. These results indicate that Pin1 is a regulator of Cyclin D1 expression in OSCC and might have a role in oncogenesis; and the expression of many cyclin genes will be an indicator of lymph node metastasis in OSCC.
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Affiliation(s)
- Hitoshi Miyashita
- Department of Pathology, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryomachi, Aoba, Sendai 980-8575, Japan
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