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Sugiura K, Terano T, Adachi H, Hagiwara J, Matsuda K, Nishida K, Hanson P, Kondo S, Gotoh H. Histological Observation of Helmet Development in the Treehopper Poppea capricornis (Insecta: Hemiptera: Membracidae). Zoolog Sci 2024; 41:167-176. [PMID: 38587911 DOI: 10.2108/zs230039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 11/09/2023] [Indexed: 04/10/2024]
Abstract
The treehoppers (Hemiptera, Membracidae) are known for possessing a large three-dimensional structure called a helmet. Although some ecological functions of the helmet have already been elucidated, the developmental mechanisms underlying the complex and diverse morphology of the helmet are still largely unknown. The process of helmet formation was first described in Antianthe expansa, which possesses a simple roof-shaped helmet. However, the developmental process in species with more complex helmet morphologies remains largely unexplored. Hence, in this study, we used Poppea capricornis, which possesses a more complex helmet structure than A. expansa, to investigate the helmet development using paraffin sections, micro-CT, and scanning electronic microscopy. Our focus was on the overall helmet developmental process common to both species and formation of structures unique to Poppea and its comparison to Antianthe. As a result, we discovered that miniature structures were also formed in Poppea, similar to Antianthe, during the helmet formation. Common structures that were shared between the two species were discernible at this stage. Additionally, we observed that suprahumeral horns and posterior horns, two morphological traits specific to the Poppea helmet that are apparently similar anatomically, are formed through two distinctly different developmental mechanisms. The suprahumeral horns appeared to be formed by utilizing the nymphal suprahumeral bud as a mold, while we could not detect any nymphal structures potentially used for a mold in the posterior horns formation. Our findings suggest that the helmet formation mechanisms of Antianthe and Poppea employ a common mechanism but form species-specific structures by multiple mechanisms.
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Affiliation(s)
- Kanta Sugiura
- Department of Biological Science, Faculty of Science, Shizuoka University, Suruga Ward, Shizuoka City, Shizuoka 422-8529, Japan
- Department of Science, Graduate School of Integrated Science and Technology, Shizuoka University, Suruga-ku, Shizuoka City, Shizuoka 422-8529, Japan
| | - Tensho Terano
- Department of Biological Science, Faculty of Science, Shizuoka University, Suruga Ward, Shizuoka City, Shizuoka 422-8529, Japan
| | - Haruhiko Adachi
- Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan
| | - Jin Hagiwara
- Department of Biological Science, Faculty of Science, Shizuoka University, Suruga Ward, Shizuoka City, Shizuoka 422-8529, Japan
- Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan
| | - Keisuke Matsuda
- Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan
| | - Kenji Nishida
- Associate Researcher Museo de Zoología, Universidad de Costa Rica & Estación Biológica Monteverde, Apdo 22-5655, Monteverde, CostaRica
| | - Paul Hanson
- Escuela de Biología & Centro de Investigacion en Biodiversidad y Ecología Tropical (CIBET), Universidad de Costa Rica, San Pedro de Montes de Oca, San José, Costa Rica
| | - Shigeru Kondo
- Graduate School of Frontier Biosciences, Osaka University, Osaka 565-0871, Japan
| | - Hiroki Gotoh
- Department of Biological Science, Faculty of Science, Shizuoka University, Suruga Ward, Shizuoka City, Shizuoka 422-8529, Japan,
- Department of Science, Graduate School of Integrated Science and Technology, Shizuoka University, Suruga-ku, Shizuoka City, Shizuoka 422-8529, Japan
- Division of Bioscience, Graduate School of Science and Technology, Shizuoka University, Hamamatsu City, Shizuoka 432-8011, Japan
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Tagami T, Tosa R, Omura M, Hagiwara J, Kido N, Hirama H, Yokota H. Impact of cardiac arrest duration on extravascular lung water and pulmonary vascular permeability in patients with postcardiac arrest syndrome: a prospective observational study. Crit Care 2011. [PMCID: PMC3061770 DOI: 10.1186/cc9560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Koshizuka K, Hada M, Muto S, Hagiwara J, Nakagomi H, Takano K, Kamiya K, Tada Y. [A case of recurrent breast cancer successfully treated with docetaxel]. Gan To Kagaku Ryoho 1999; 26:1479-81. [PMID: 10500538] [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: 02/14/2023]
Abstract
A 53-year-old female underwent mastectomy for left breast cancer in April, 1993. She was given oral tamoxifen but this had to be discontinued due to its side effects. In March, 1998, she developed bone and lung metastases, in spite of treatment with combination chemotherapy (CEF). We thus treated here with docetaxel 90 mg three times and 40 mg six times. After the chemotherapy, she achieved complete remissions of the lung metastases and a decrease in serum CEA, CA 15-3, NCC-ST439, and BCA225. Adverse reactions to docetaxel were grade 2 alopecia, grade 4 neutropenia, dysgeusia, and fluid retention. All were tolerable. This new agent may play an important future role in chemotherapy for recurrent breast cancer.
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Affiliation(s)
- K Koshizuka
- Second Dept. of Surgery, Yamanashi Medical University
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Nakagomi H, Miyake T, Hada M, Hagiwara J, Furuya K, Muto S, Koshizuka K, Takano K, Kato R, Imamura K, Oyama T, Tada Y. Prognostic and Therapeutic Implications of the MIB-1 Labeling Index in Breast Cancer. Breast Cancer 1998; 5:255-259. [PMID: 11091656 DOI: 10.1007/bf02966705] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND: Assessment of tumor proliferative activity is considered to be the most powerful prognostic factor aside from axillary lymph node status. The purpose of this study is to assess the clinical value of measurement of proliferative activity using the MIB-1 labeling index in patients with breast cancer. METHODS: Surgical specimens from 36 patients with benign breast disorders and146 patients with breast cancer were investigated. The MIB-1 labeling index wasdetermined on the specimens stained by immunohistochemical methods as much as possible. Clinical factors associated with the MIB-1 labeling index were reviewed. RESULTS: The MIB-1 labeling index for non-proliferative disorders, proliferative disorders, and breast cancer was 3.4 +/-1.9%, 8.9 +/-6.2% and 20+/-12%, respectively. The MIB-1 labeling index and tumor size, lymph node metastasis status, and clinical stage according to the TNM classification correlated significantly. Survival rate was inversely correlated with the MIB-1 labeling index. No patientwith an MIB-1 labeling index of less than 10% had lymph node metastases, and all are alive without recurrence. Patients with an MIB-1 labeling index of over 30% had an extremely poor prognosis. CONCLUSION: The MIB-1 labeling index is very useful for predicting both either extremely good or extremely poor prognosis, and axillary lymph node metastasis
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Affiliation(s)
- H Nakagomi
- Second Department of Surgery, 1110 Shimokato, Tama-cho, Nakakoma-gun, Yamanashi 409-38, Japan
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Nakagomi H, Furuya K, Hagiwara J, Nishio T, Watanabe K, Muto S, Takano K, Tada Y. [Toremifene sensitized the effect of adriamycin on human breast cancer cell lines]. Gan To Kagaku Ryoho 1998; 25 Suppl 3:454-8. [PMID: 9589052] [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: 02/07/2023]
Abstract
A experimental study was reported here to clarify the chemosensitizing effect of Toremifene (Tor) on human breast cancer cell lines. MCF7, estrogen dependent adriamycin (ADM) resistant cell, and MDA-MB231, estrogen independent cell, were preincubated for 8 hours with Tor 0, 4 or 10 microM, then with ADM 0-10 micrograms/ml for one hour. After that, cells were cultured for 24 hours, and their cell cycle and growth were analyzed with flow-cytometry and MTT assay, respectively. Furthermore, the ADM concentrations of these cells were measured by high-performance liquid chromatographic assay (HPLC). Although flowcytometric analysis showed the enhancement of Gz block only in MCF7 at the ADM concentration with 5 micrograms/ml, the sensitizing effect was revealed by MTT assay, and the elevation of ADM concentration was found in HPLC assay in both cells. The chemosensitizing effect of Toremifene was observed in estrogen dependent and independent cell lines.
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Affiliation(s)
- H Nakagomi
- Dept. of Surgery II, Yamanashi University Medical School
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Nishio T, Nakagomi H, Mutou S, Miyake T, Hagiwara J, Ashizawa I, Oyama T, Takano K, Tada Y. [Analysis for predicting the prognostic factors of gastrointestinal tract leiomyosarcoma using MIB-1 and DNA flow cytometry]. Gan To Kagaku Ryoho 1998; 25 Suppl 3:475-80. [PMID: 9589056] [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: 02/07/2023]
Abstract
PURPOSE The present study was undertaken to investigate the possibility of determining a prognosis for gastrointestinal tract leiomyosarcoma with the use of DNA analysis and MIB-1 staining. SUBJECTS AND METHODS Malignant tumors originating in smooth muscle of the gastrointestinal tract, surgically excised from 23 lesions in 17 patients (stomach; 8 cases, 12 lesions; small intestine: 6 cases, 8 lesions; colon: 3 cases, 3 lesions) and embedded in paraffin, were examined. DNA was analyzed using flow cytometry to produce a DNA histogram, and aneuploidy and diploidy were found. MIB-1 staining was done in conformity with the ABC method. RESULTS 1. An investigation of prognoses using the Kaplan-Meier method revealed a tendency for more favorable prognoses in patients determined to be aneuploid through DNA analysis. However, this was not significantly better than those exhibiting diploidy. 2. All patients who died had a MIB-1 staining positivity rate of over 10%, while all patients who had no recurrence within one year or survived had a MIB-1 staining positivity of less than 10%. 3. No consistent trends were observed between MIB-1 positivity rate and DNA analysis, MIB-1 positivity rate and size of tumor, or DNA analysis and size of tumor. 4. The MIB-1 positivity rate of patients with remote metastases was significantly greater than that of patients with no remote metastases. CONCLUSION From the fact that patients with MIB-1 positivity rates of greater than 10% had a poor prognosis, while those with rates of less than 10% had a favorable prognosis, we conclude that a MIB-1 positivity rate of 10% is an important value in determining the prognosis of patients with gastrointestinal tract leiomyosarcomas.
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Affiliation(s)
- T Nishio
- Second Dept. of Surgery, Yamanashi Medical University
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Furuya T, Hagiwara J, Ochi H, Tokuhiro H, Kikawada R, Karube T, Watanabe S. Changes of common fragile sites on chromosomes according to the menstrual cycle. Hum Genet 1991; 86:471-4. [PMID: 1901825 DOI: 10.1007/bf00194635] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [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: 12/29/2022]
Abstract
The frequencies of chromosomal breaks and sister chromatid exchanges (SCE) are influenced by pregnancy, oral hormonal contraceptives and the menstrual cycle. The changes in the number and sites of spontaneous and aphidicolin-induced breaks on chromosomes from peripheral blood lymphocytes during the menstrual cycle were examined in 8 healthy women. Menstrual cycle was determined by menstruation and the quantity of serum estrogen, progesterone and luteinizing hormone. The number of spontaneous breaks at the follicular phase, the interval phase (which includes ovulation) and the luteal phase were 3.1 +/- 1.1, 2.7 +/- 2.3 and 3.9 +/- 2.6 per 100 mitoses, respectively. The frequencies of aphidicolin-induced breaks in the same phases were 95.8 +/- 23.3, 90.6 +/- 14.3 and 122.7 +/- 20.1 per 100 mitoses, respectively. The higher frequency at the luteal phase was statistically significant compared with the other phases. In the luteal phase, bands 2q32, 3q27, 6q26 and 16q23 had higher frequencies of breaks (P less than 0.05); however, breaks at band 9q32 decreased significantly. SCE showed considerable variation, but with no statistical significance.
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Affiliation(s)
- T Furuya
- Epidemiology Division, National Cancer Center Research Institute, Tokyo, Japan
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