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Cao J, Futami K, Maita M, Nakanishi T, Katagiri T. Adjuvant effect of allogeneic blood in vaccines against edwardsiellosis in ginbuna crucian carp Carassius auratus langsdorfii. Fish Shellfish Immunol 2023; 143:109133. [PMID: 37923185 DOI: 10.1016/j.fsi.2023.109133] [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] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 09/19/2023] [Accepted: 10/01/2023] [Indexed: 11/07/2023]
Abstract
Edwardsiella tarda (E. tarda), an intracellular pathogen, has caused severe economic losses in aquaculture. Effective vaccine development for E. tarda prevention is urgently needed. A previous study indicates that cell-mediated immunity (CMI) might play an important role in E. tarda infection. We believe that the involvement of allograft rejection and CMI has now been well documented in mammals and some fishes. However, there is still little research on the application of blood allograft rejection in vaccine development. In the current study, we investigate the immune response and vaccine effect in fish vaccinated with allogeneic blood + formalin-killed cells vaccine (FKC), allogeneic blood + phosphate-buffered saline (PBS), PBS + FKC and PBS + PBS. In the challenge test, the relative percentage survival (RPS) of the allogeneic + FKC, the allogeneic blood + PBS and the PBS + FKC group was 61.46, 35.41, and 30.63 % respectively. The up-regulated expression of Th1-related genes IFN-γ 1, IFN-γ 1rel2, IL-12p35 and T-bet suggests the protection is via CMI induction. Only in the allogeneic + FKC group, gene expression of IFN-γ 1, IL-12p35 and T-bet is significantly higher, indicating synergy between the two substances. Furthermore, among the fish injected with the allogeneic blood cells, syngeneic blood cells and PBS group, only in the fish of the allogenic blood cells injection group, did expression of IFN-γ 1, IFN-γ 2 and IFN-γ rel2 gene expression significantly increased. The results indicate that the rejection was induced by allogeneic components. Thus, our findings might provide essential information and insights into vaccine development in aquaculture.
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Affiliation(s)
- Jingjing Cao
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7, Konan, Minato, Tokyo, 108-8477, Japan
| | - Kunihiko Futami
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7, Konan, Minato, Tokyo, 108-8477, Japan
| | - Masashi Maita
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7, Konan, Minato, Tokyo, 108-8477, Japan
| | - Teruyuki Nakanishi
- Goto Aquaculture Institute Co., Ltd, Sayama City, Saitama, 350-1332, Japan
| | - Takayuki Katagiri
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7, Konan, Minato, Tokyo, 108-8477, Japan.
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Futami K, Sato S, Maita M, Katagiri T. Lack of a p16 INK4a/ARF locus in fish genome may underlie senescence resistance in the fish cell line, EPC. Dev Comp Immunol 2022; 133:104420. [PMID: 35417735 DOI: 10.1016/j.dci.2022.104420] [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] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/07/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
Unlike most mammalian cell lines, fish cell lines are immortal and resistant to cellular senescence. Elevated expression of H-Ras contributes to the induction of senescence in a fish cell line, EPC, but is not sufficient to induce full senescence. Here, we focused on the absence of a p16INK4a/ARF locus in the fish genome, and investigated whether this might be a critical determinant of the resistance of EPC cells to full senescence. We found that transfected EPC cells constitutively overexpressing p16INK4a exhibited large size and flat morphology characteristic of prematurely senescent cells; the cells also showed p53-independent senescence-like growth arrest and senescence-associated β-galactosidase (SA-β-gal) activity. Furthermore, the mRNA levels of proinflammatory senescence-associated secretory phenotype (SASP) factors increased in EPC cells constitutively overexpressing p16INK4a. These results suggest that the lack of p16INK4a in the fish genome may be a critical determinant of senescence resistance in fish cell lines.
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Affiliation(s)
- Kunihiko Futami
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato, Tokyo, 108-8477, Japan.
| | - Shunichi Sato
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato, Tokyo, 108-8477, Japan
| | - Masashi Maita
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato, Tokyo, 108-8477, Japan
| | - Takayuki Katagiri
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato, Tokyo, 108-8477, Japan
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Omachi H, Terahara T, Futami K, Kawato S, Imada C, Kamei K, Waku T, Kondo A, Naganuma T, Agustini TW, Kobayashi T. Distribution of class IId bacteriocin-producing Virgibacillus salexigens in various environments. World J Microbiol Biotechnol 2021; 37:121. [PMID: 34143291 DOI: 10.1007/s11274-021-03085-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 06/02/2021] [Indexed: 12/30/2022]
Abstract
We performed several experiments using three strains of Virgibacillus salexigens, namely, P2, NT N53, and C-20MoT (DSM 11483T), which were isolated from completely different sources, in relation to bacteriocin production ability. Results of whole-genome sequencing analysis revealed that all strains have very similar sequences encoding class IId bacteriocin. Although a partial amino acid sequence of the purified bacteriocin produced by strain P2 isolated from fermented food was previously reported, whole-genome sequencing and the N-terminal sequencing results in this study showed that its complete amino acid sequence consisted of 48 residues, which corresponded to that of the hypothetical bacteriocin encoded by the gene in Virgibacillus massiliensis strain Vm-5T (DSM 28587T) isolated from the human gut. From the results of 16S rRNA gene sequencing and whole-genome sequencing analyses, we taxonomically confirmed Vm-5T to be a strain of V. salexigens, and its broth culture showed antibacterial activity. Strain NT N53 isolated from the deep-sea floor produced two bacteriocins, namely, NTN-A and NTN-B. The results of N-terminal sequencing, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, and whole-genome sequencing analyses showed that their amino acid sequences differed in only one residue, and NTN-A showed the same sequence as the bacteriocin produced by strain P2. Although strain C-20MoT isolated from a solar saltern had the coding sequence very similar to that of NTN-A, its broth culture showed no antibacterial activity. This finding suggests that class IId bacteriocin-producing or bacteriocin-gene-encoding V. salexigens strains are widely distributed in distinct environment sources with different geographical and material properties.
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Affiliation(s)
- Hitomi Omachi
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo, 108-8477, Japan
| | - Takeshi Terahara
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo, 108-8477, Japan
| | - Kunihiko Futami
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo, 108-8477, Japan
| | - Satoshi Kawato
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo, 108-8477, Japan
| | - Chiaki Imada
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo, 108-8477, Japan
| | - Kaeko Kamei
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Tomonori Waku
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Akihiro Kondo
- Hiyoshi Corporation, 908 Kitanosho, Omihachiman, Shiga, 523-8555, Japan
| | - Takeshi Naganuma
- Graduate School of Integrated Sciences for Life, Hiroshima University, 1-4-4 Kagamiyama, Higashi-hiroshima, Hiroshima, 739-8527, Japan
| | - Tri Winarni Agustini
- Department of Fisheries Product Technology, Faculty of Fisheries and Marine Science, Diponegoro University, Jl. Prof. H. Soedarto, SH Tembalang, Semarang, 50275, Indonesia
| | - Takeshi Kobayashi
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo, 108-8477, Japan.
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Futami K, Iwashita H, Higa Y, Lutiali PA, Sonye GO, Mwatele C, Njenga SM, Minakawa N. Geographical Distribution of Aedes aegypti aegypti and Aedes aegypti formosus (Diptera: Culicidae) in Kenya and Environmental Factors Related to Their Relative Abundance. J Med Entomol 2020; 57:772-779. [PMID: 31815285 DOI: 10.1093/jme/tjz233] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Indexed: 06/10/2023]
Abstract
The mosquito Aedes aegypti (L.) is the primary vector of various infectious viruses and is typified by a polymorphic color and abundance of white scales on the body. It has been conventionally separated into two subspecies, Ae. aeg. formosus (Walker) (Aaf) and Ae. aeg. aegypti (L.) (Aaa), with Aaf considered a 'sylvan' form and Aaa a 'domestic' form. Because the two subspecies show different susceptibilities to dengue viruses it is important to understand their distribution. In this study, we collected larvae from artificial and natural habitats in southern Kenya and reared them to adults to morphologically identify subspecies. We describe the geographical distribution and relative abundance of Aaa and Aaf in Kenya, and estimate the environmental factors associated with their distributions by GIS using climate and environment data. A total of 5,243 Ae. aegypti adults were collected from 249 sites, with Aaa accounting for 22% of the specimens. The relative abundance of Aaa was higher in coastal areas versus sites in western Kenya. Aaa abundance was also higher in urbanized than forested areas, which is consistent with known ecology. In contrast and inconsistent with previous studies, both Aaa and Aaf were sympatric in artificial and natural habitats. The high relative abundance of Aaa in coastal areas might derive from old populated cities, climate, and/or introduction from abroad.
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Affiliation(s)
- K Futami
- Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
| | - H Iwashita
- Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
- Department of Bacteriology, Graduate School of Medicine, University of the Ryukyus, Nishiharacho, Okinawa, Japan
| | - Y Higa
- Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
- Department of Medical Entomology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - P A Lutiali
- Center for Research in Tropical Medicine and Community Development (CRTMCD), Nairobi, Kenya
| | - G O Sonye
- ASK Community Based Organization located in Mbita, Homabay, Kenya
| | - C Mwatele
- Eastern and Southern Africa Centre of International Parasite Control (ESACIPAC), Kenya Medical Research Institute, Nairobi, Kenya
| | - S M Njenga
- Eastern and Southern Africa Centre of International Parasite Control (ESACIPAC), Kenya Medical Research Institute, Nairobi, Kenya
| | - N Minakawa
- Department of Vector Ecology and Environment, Institute of Tropical Medicine, Nagasaki University, Nagasaki, Japan
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Futami K, Misaki K, Nakada M. Reply. AJNR Am J Neuroradiol 2020; 41:E27. [PMID: 32241777 DOI: 10.3174/ajnr.a6474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- K Futami
- Department of NeurosurgeryHokuriku Central HospitalToyama, Japan
| | - K Misaki
- Department of NeurosurgeryKanazawa University School of MedicineIshikawa, Japan
| | - M Nakada
- Department of NeurosurgeryKanazawa University School of MedicineIshikawa, Japan
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Futami K, Uno T, Misaki K, Tamai S, Nambu I, Uchiyama N, Nakada M. Identification of Vortex Cores in Cerebral Aneurysms on 4D Flow MRI. AJNR Am J Neuroradiol 2019; 40:2111-2116. [PMID: 31753836 DOI: 10.3174/ajnr.a6322] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 08/13/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The complexity and instability of the vortex flow in aneurysms are factors related to the rupture risk of unruptured cerebral aneurysms. We identified aneurysm vortex cores on 4D flow MR imaging and examined the relationship of these factors with the characteristics of cerebral aneurysms. MATERIALS AND METHODS We subjected 40 aneurysms (37 unruptured, 3 ruptured) to 4D flow MR imaging. We visualized streamlines with velocities below the threshold-that is, a percentage value of the aneurysm maximum inflow velocity-and progressively decreased the threshold to identify vortex cores as thin, streamline bundles with minimum velocities. Complexity and stability were compared in aneurysms with a smooth surface and those with blebs or daughter sacs. RESULTS The threshold for visualizing vortex cores ranged from 3% to 13% of the maximum inflow velocity. Vortex cores could be visualized in 38 aneurysms; in 2, they were not visualized through the cardiac cycle. A simple flow pattern (single vortex core) was identified in 27 aneurysms; the other 13 exhibited a complex flow pattern. The cores were stable in 32 and unstable in 8 aneurysms. Significantly more aneurysms with-than-without blebs or daughter sacs had a complex flow pattern (P = .006). Of the 3 ruptured aneurysms, 1 aneurysm had an unstable vortex core; in the other 2, the vortex core was not visualized. CONCLUSIONS The identification of vortex cores on 4D flow MR imaging may help to stratify the rupture risk of unruptured cerebral aneurysms.
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Affiliation(s)
- K Futami
- From the Department of Neurosurgery (K.F.), Hokuriku Central Hospital, Toyama, Japan
| | - T Uno
- Department of Neurosurgery (T.U., K.M., S.T., I.N., N.U., M.N.), Kanazawa University School of Medicine, Ishikawa, Japan
| | - K Misaki
- Department of Neurosurgery (T.U., K.M., S.T., I.N., N.U., M.N.), Kanazawa University School of Medicine, Ishikawa, Japan
| | - S Tamai
- Department of Neurosurgery (T.U., K.M., S.T., I.N., N.U., M.N.), Kanazawa University School of Medicine, Ishikawa, Japan
| | - I Nambu
- Department of Neurosurgery (T.U., K.M., S.T., I.N., N.U., M.N.), Kanazawa University School of Medicine, Ishikawa, Japan
| | - N Uchiyama
- Department of Neurosurgery (T.U., K.M., S.T., I.N., N.U., M.N.), Kanazawa University School of Medicine, Ishikawa, Japan
| | - M Nakada
- Department of Neurosurgery (T.U., K.M., S.T., I.N., N.U., M.N.), Kanazawa University School of Medicine, Ishikawa, Japan
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Futami K, Maita M, Katagiri T. DNA demethylation with 5-aza-2′-deoxycytidine induces the senescence-associated secretory phenotype in the immortal fish cell line, EPC. Gene 2019; 697:194-200. [DOI: 10.1016/j.gene.2019.02.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/23/2019] [Accepted: 02/06/2019] [Indexed: 12/28/2022]
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Zoral MA, Futami K, Endo M, Maita M, Katagiri T. Anthelmintic activity of Rosmarinus officinalis against Dactylogyrus minutus (Monogenea) infections in Cyprinus carpio. Vet Parasitol 2017; 247:1-6. [PMID: 29080753 DOI: 10.1016/j.vetpar.2017.09.013] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [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: 07/04/2017] [Revised: 09/12/2017] [Accepted: 09/13/2017] [Indexed: 11/27/2022]
Abstract
Monogenean parasites are important ectoparasites of fish, and are responsible for severe economic impacts in the aquaculture industry. They are usually treated with chemicals, but the chemicals can have harmful side effects in the fish and may pose threats to human health. Rosemary (Rosmarinus officinalis) is a common medicinal herb, with antimicrobial and antitumor properties. Here, we examined the anthelmintic activity of rosemary extract against the monogenean (Dactylogyrus minutus) in vitro and in vivo using bath treatment and oral administration. The in vitro experiments showed that parasite survival was affected by both rosemary extract concentration and the solvent (water and ethanol). Parasites were dead at 61.8±5.6 and 7.8±1.4min when exposed to 100 and 200g aqueous rosemary extract solution/L of water respectively. It took 166.7±48.2 and 5.4±1.01min to kill the parasites when exposed to 1 and 32g ethanol rosemary extract solution/L of water respectively. Moreover, pure component of rosemary extract obtained commercially used in in vitro experiments showed that 1,8-Cineole was the most toxic component of the main components tested. Parasite intensity and prevalence in fish exposed to 50 and 100g aqueous rosemary solution/L water for 30min were significantly lower than they were in controls (p<0.05). In oral treatment experiments, diets of Cyprinus carpio were supplemented with eight different concentrations of aqueous rosemary extract. The intensity of parasites was significantly less in fish fed for 30days with feed containing 60, 80 and 100ml aqueous extract/100g feed than in control (p<0.05). Together these results indicate that rosemary is a promising candidate for prevention and control of monogenean infection.
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Affiliation(s)
- M A Zoral
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan.
| | - K Futami
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan
| | - M Endo
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan
| | - M Maita
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan
| | - T Katagiri
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan.
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Gallage S, Katagiri T, Endo M, Futami K, Endo M, Maita M. Influence of moderate hypoxia on vaccine efficacy against Vibrio anguillarum in Oreochromis niloticus (Nile tilapia). Fish Shellfish Immunol 2016; 51:271-281. [PMID: 26915308 DOI: 10.1016/j.fsi.2016.02.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 02/18/2016] [Accepted: 02/18/2016] [Indexed: 06/05/2023]
Abstract
Hypoxia is known as a potential immunomodulator in fish. This study therefore assesses the impact of chronic, moderate hypoxia on vaccine efficacy in Oreochromis niloticus. Serum antibody titer was used as a surrogate marker to detect vaccine efficacy. The fish were acclimatized to either moderate hypoxia (55 ± 5% DO) or normoxia (85 ± 5%DO) and immunized with formalin inactivated Vibrio anguillarum. Significantly, a higher antibody titer was found in normoxic fish than in moderate hypoxia. The normoxic group titer peaked at 14th dpv (days post vaccination) while the moderate hypoxic group peaked at 21st or 28th dpv. The absolute blood lymphocyte counts and serum bactericidal activities against V. anguillarum were significantly higher in normoxic fish. Serum killing of V. anguillarum appeared to be mainly via antibody-dependent classical complement pathway. Furthermore, the first week following vaccination appears critical for antibody production. This view was further supported by results obtained from gene expression assay, where the transcription level of all the detected immune related genes (IgM, IL-1 β, TCR-β, MHC-II β), except B cell activating factor, were significantly suppressed following exposure to moderate hypoxia. The overall results highlight that even though moderate hypoxia is not easily detectable in Oreochromis niloticus, it negatively affects antibody production by suppressing and delaying antibody response, ultimately affecting vaccine efficacy.
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Affiliation(s)
- Sanchala Gallage
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan.
| | - Takayuki Katagiri
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan.
| | - Makoto Endo
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan.
| | - Kunihiko Futami
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan.
| | - Masato Endo
- Laboratory of Aquaculture, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan.
| | - Masashi Maita
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan.
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Futami K, Kitabayashi T, Sano H, Misaki K, Uchiyama N, Ueda F, Nakada M. Inflow Jet Patterns of Unruptured Cerebral Aneurysms Based on the Flow Velocity in the Parent Artery: Evaluation Using 4D Flow MRI. AJNR Am J Neuroradiol 2016; 37:1318-23. [PMID: 26892984 DOI: 10.3174/ajnr.a4704] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 12/16/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Inflow jet characteristics may be related to aneurysmal bleb formation and rupture. We investigated the visualization threshold on the basis of the flow velocity in the parent artery to classify the inflow jet patterns observed on 4D flow MR imaging. MATERIALS AND METHODS Fifty-seven unruptured aneurysms (24 bifurcation and 33 sidewall aneurysms) were subjected to 4D flow MR imaging to visualize inflow streamline bundles whose velocity exceeded visualization thresholds corresponding to 60%, 75%, and 90% of the maximum flow velocity in the parent artery. The shape of the streamline bundle was determined visually, and the inflow jet patterns were classified as concentrated, diffuse, neck-limited, and unvisualized. RESULTS At the 75% threshold, bifurcation aneurysms exhibited a concentrated inflow jet pattern at the highest rate. At this threshold, the inflow jets were concentrated in 13 aneurysms (group C, 22.8%), diffuse in 18 (group D, 31.6%), neck-limited in 11 (group N, 19.3%), and unvisualized in 15 (group U, 26.3%). In 16 (28.1%) of the 57 aneurysms, the inflow jet pattern was different at various thresholds. Most inflow parameters, including the maximum inflow velocity and rate, the inflow velocity ratio, and the inflow rate ratio, were significantly higher in groups C and D than in groups N and U. CONCLUSIONS The inflow jet pattern may depend on the threshold applied to visualize the inflow streamlines on 4D flow MR imaging. For the classification of the inflow jet patterns on 4D flow MR imaging, the 75% threshold may be optimal among the 3 thresholds corresponding to 60%, 75%, and 90% of the maximum flow velocity in the parent artery.
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Affiliation(s)
- K Futami
- From the Department of Neurosurgery, Mattoh-Ishikawa Central Hospital (K.F.), Ishikawa, Japan
| | - T Kitabayashi
- Departments of Neurosurgery (T.K., H.S., K.M., N.U., M.N.)
| | - H Sano
- Departments of Neurosurgery (T.K., H.S., K.M., N.U., M.N.)
| | - K Misaki
- Departments of Neurosurgery (T.K., H.S., K.M., N.U., M.N.)
| | - N Uchiyama
- Departments of Neurosurgery (T.K., H.S., K.M., N.U., M.N.)
| | - F Ueda
- Radiology (F.U.), Kanazawa University School of Medicine, Ishikawa, Japan
| | - M Nakada
- Departments of Neurosurgery (T.K., H.S., K.M., N.U., M.N.)
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Nio K, Higashi D, Kumagai H, Arita S, Shirakawa T, Nakashima K, Shibata Y, Esaki M, Ueki T, Nakano M, Ariyama H, Kusaba H, Hirahashi M, Oda Y, Esaki T, Mitsugi K, Futami K, Akashi K, Baba E. 176P Safety analysis of chemotherapy for colitis-associated colorectal cancer in Japan. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.37] [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: 11/13/2022] Open
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Chen J, Huang D, Rubera I, Futami K, Wang P, Zickert P, Khoo SK, Dykema K, Zhao P, Petillo D, Cao B, Zhang Z, Si S, Schoen SR, Yang XJ, Zhou M, Xiao GQ, Wu G, Nordenskjöld M, Tauc M, Williams BO, Furge KA, Teh BT. Disruption of tubular Flcn expression as a mouse model for renal tumor induction. Kidney Int 2015; 88:1057-69. [PMID: 26083655 DOI: 10.1038/ki.2015.177] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 04/09/2015] [Accepted: 04/16/2015] [Indexed: 01/07/2023]
Abstract
The study of kidney cancer pathogenesis and its treatment has been limited by the scarcity of genetically defined animal models. The FLCN gene that codes for the protein folliculin, mutated in Birt-Hogg-Dubé syndrome, presents a new target for mouse modeling of kidney cancer. Here we developed a kidney-specific knockout model by disrupting the mouse Flcn in the proximal tubules, thus avoiding homozygous embryonic lethality or neonatal mortality, and eliminating the requirement of loss of heterozygosity for tumorigenesis. This knockout develops renal cysts and early onset (6 months) of multiple histological subtypes of renal neoplasms featuring high tumor penetrance. Although the majority of the tumors were chromophobe renal cell carcinomas in affected mice under 1 year of age, papillary renal cell carcinomas predominated in the kidneys of older knockout mice. This renal neoplasia from cystic hyperplasia at 4 months to high-grade renal tumors by 16 months represented the progression of tumorigenesis. The mTOR and TGF-β signalings were upregulated in Flcn-deficient tumors, and these two activated pathways may synergetically cause renal tumorigenesis. Treatment of knockout mice with the mTOR inhibitor rapamycin for 10 months led to the suppression of tumor growth. Thus, our model recapitulates human Birt-Hogg-Dubé kidney tumorigenesis, provides a valuable tool for further study of Flcn-deficient renal tumorigenesis, and tests new drugs/approaches to their treatment.
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Affiliation(s)
- Jindong Chen
- Kidney Cancer Research Laboratory, Department of Urology, University of Rochester Medical Center, Rochester, NY, USA.,Department of Cell Biology and Genetics, Zunyi Medical University, Zunyi, China
| | - Dachuan Huang
- NCCS-VARI Translational Cancer Research Laboratory, National Cancer Centre, Singapore, Singapore
| | | | - Kunihiko Futami
- Course of Applied Marine Biosciences, Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - Pengfei Wang
- Kidney Cancer Research Laboratory, Department of Urology, University of Rochester Medical Center, Rochester, NY, USA
| | - Peter Zickert
- Department of Pathology, Karolinska Institutet, Danderyds Hospital, Stockholm, Sweden
| | - Sok-Kean Khoo
- Department of Cell and Molecular Biology, Grand Valley State University, Cook-DeVos Center for Health Sciences, Grand Rapids, MI, USA
| | - Karl Dykema
- Laboratory of Interdisciplinary Renal Oncology, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Ping Zhao
- Spectrum Health, Helen DeVos Children's Hospital, Grand Rapids, MI, USA
| | - David Petillo
- Laboratory of Interdisciplinary Renal Oncology, Van Andel Research Institute, Grand Rapids, MI, USA.,Molecular Diagnostics Program, College of Health Professions, Ferris State University, Grand Rapids, MI, USA
| | - Brian Cao
- Laboratory of Molecular Oncology, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Zhongfa Zhang
- Laboratory of Interdisciplinary Renal Oncology, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Shuhui Si
- Kidney Cancer Research Laboratory, Department of Urology, University of Rochester Medical Center, Rochester, NY, USA
| | - Susan R Schoen
- Kidney Cancer Research Laboratory, Department of Urology, University of Rochester Medical Center, Rochester, NY, USA
| | - Ximing J Yang
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Ming Zhou
- Department of Pathology, New York University Medical Center, New York, NY, USA
| | - Guang-Qian Xiao
- Department of Pathology, University of Rochester Medical Center, Rochester, NY, USA
| | - Guan Wu
- Kidney Cancer Research Laboratory, Department of Urology, University of Rochester Medical Center, Rochester, NY, USA
| | - Magnus Nordenskjöld
- Clinical Genetics, Department of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Michel Tauc
- University of Nice-Sophia Antipolis, Nice, France
| | - Bart O Williams
- Laboratory of Cell Signaling and Carcinogenesis, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Kyle A Furge
- Laboratory of Interdisciplinary Renal Oncology, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Bin Tean Teh
- NCCS-VARI Translational Cancer Research Laboratory, National Cancer Centre, Singapore, Singapore.,Laboratory of Interdisciplinary Renal Oncology, Van Andel Research Institute, Grand Rapids, MI, USA
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Ikeda K, Yamashita J, Higashi S, Futami K. Modified Orbitocranial Approach for Unusual Cerebral Aneurysms of the Anterior Circulation. Skull Base Surg 2015. [DOI: 10.1159/000429941] [Citation(s) in RCA: 1] [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: 11/19/2022]
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14
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Futami K, Valderrama A, Baldi M, Minakawa N, Marín Rodríguez R, Chaves LF. New and Common Haplotypes Shape Genetic Diversity in Asian Tiger Mosquito Populations from Costa Rica and Panamá. J Econ Entomol 2015; 108:761-768. [PMID: 26470188 DOI: 10.1093/jee/tou028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 10/22/2014] [Indexed: 06/05/2023]
Abstract
The Asian tiger mosquito, Aedes albopictus (Skuse) (Diptera: Culicidae), is a vector of several human pathogens. Ae. albopictus is also an invasive species that, over recent years, has expanded its range out of its native Asia. Ae. albopictus was suspected to be present in Central America since the 1990s, and its presence was confirmed by most Central American nations by 2010. Recently, this species has been regularly found, yet in low numbers, in limited areas of Panamá and Costa Rica (CR). Here, we report that short sequences (∼558 bp) of the mitochondrial cytochrome oxidase subunit 1 (COI) and NADH dehydrogenase subunit 5 genes of Ae. albopictus, had no haplotype diversity. Instead, there was a common haplotype for each gene in both CR and Panamá. In contrast, a long COI sequence (∼1,390 bp) revealed that haplotype diversity (±SD) was relatively high in CR (0.72±0.04) when compared with Panamá (0.33±0.13), below the global estimate for reported samples (0.89±0.01). The long COI sequence allowed us to identify seven (five new) haplotypes in CR and two (one new) in Panamá. A haplotype network for the long COI gene sequence showed that samples from CR and Panamá belong to a single large group. The long COI gene sequences suggest that haplotypes in Panamá and CR, although similar to each other, had a significant geographic differentiation (Kst=1.33; P<0.001). Thus, most of our results suggest a recent range expansion in CR and Panamá.
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Affiliation(s)
- K Futami
- Department of Vector Ecology and Environment, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 852-8523, Sakamoto 1-12-4, Nagasaki, Japan
| | - A Valderrama
- Departamento de Entomología Médica, Instituto Conmemorativo Gorgas de Estudios de la Salud (ICGES), Ministerio de Salud, Ciudad de Panamá, República de Panamá
| | - M Baldi
- Programa de Investigación en Enfermedades Tropicales (PIET), Escuela de Medicina Veterinaria, Universidad Nacional, Heredia, Costa Rica
| | - N Minakawa
- Department of Vector Ecology and Environment, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 852-8523, Sakamoto 1-12-4, Nagasaki, Japan
| | - R Marín Rodríguez
- Departamento de Control de Vectores, Ministerio de Salud, San José, Costa Rica
| | - L F Chaves
- Department of Vector Ecology and Environment, Institute of Tropical Medicine (NEKKEN), Nagasaki University, 852-8523, Sakamoto 1-12-4, Nagasaki, Japan. Programa de Investigación en Enfermedades Tropicales (PIET), Escuela de Medicina Veterinaria, Universidad Nacional, Heredia, Costa Rica. Corresponding author, e-mail:
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15
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Futami K, Sano H, Kitabayashi T, Misaki K, Nakada M, Uchiyama N, Ueda F. Parent artery curvature influences inflow zone location of unruptured sidewall internal carotid artery aneurysms. AJNR Am J Neuroradiol 2014; 36:342-8. [PMID: 25234030 DOI: 10.3174/ajnr.a4122] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Future aneurysmal behaviors or treatment outcomes of cerebral aneurysms may be related to the hemodynamics around the inflow zone. Here we investigated the influence of parent artery curvature on the inflow zone location of unruptured sidewall internal carotid artery aneurysms. MATERIALS AND METHODS In 32 aneurysms, the inflow zone location was decided by 4D flow MR imaging, and the radius of the parent artery curvature was measured in 2D on an en face image of the section plane corresponding to the aneurysm orifice. RESULTS The inflow zone was on the distal neck in 10 (group 1, 31.3%), on the lateral side in 19 (group 2, 59.4%), and on the proximal neck in 3 (group 3, 9.4%) aneurysms. The radius in group 1 was significantly larger than that in group 2 (8.3 mm [4.5 mm] versus 4.5 mm [1.9 mm]; median [interquartile range]; P < .0001). All 7 aneurysms with a radius of >8.0 mm were in group 1. All 18 aneurysms with a radius of <6.0 mm were in group 2 or 3. In two group 3 aneurysms, the inflow zone was located in a part of the neck extending beyond the central axis of the parent artery. CONCLUSIONS The inflow zone locations of sidewall aneurysms can be influenced by the parent artery curvature evaluated in 2D on an en face image of the section plane corresponding to the aneurysm orifice.
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Affiliation(s)
- K Futami
- From the Department of Neurosurgery (K.F.), Mattoh-Ishikawa Central Hospital, Ishikawa, Japan
| | - H Sano
- Departments of Neurosurgery (H.S., T.K., K.M., M.N., N.U.)
| | - T Kitabayashi
- Departments of Neurosurgery (H.S., T.K., K.M., M.N., N.U.)
| | - K Misaki
- Departments of Neurosurgery (H.S., T.K., K.M., M.N., N.U.)
| | - M Nakada
- Departments of Neurosurgery (H.S., T.K., K.M., M.N., N.U.)
| | - N Uchiyama
- Departments of Neurosurgery (H.S., T.K., K.M., M.N., N.U.)
| | - F Ueda
- Radiology (F.U.), Kanazawa University School of Medicine, Ishikawa, Japan
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16
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Futami K, Sano H, Misaki K, Nakada M, Ueda F, Hamada J. Identification of the inflow zone of unruptured cerebral aneurysms: comparison of 4D flow MRI and 3D TOF MRA data. AJNR Am J Neuroradiol 2014; 35:1363-70. [PMID: 24610906 DOI: 10.3174/ajnr.a3877] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The hemodynamics of the inflow zone of cerebral aneurysms may be a key factor in coil compaction and recanalization after endovascular coil embolization. We performed 4D flow MR imaging in conjunction with 3D TOF MRA and compared their ability to identify the inflow zone of unruptured cerebral aneurysms. MATERIALS AND METHODS This series comprised 50 unruptured saccular cerebral aneurysms in 44 patients. Transluminal color-coded 3D MRA images were created by selecting the signal-intensity ranges on 3D TOF MRA images that corresponded with both the luminal margin and the putative inflow. RESULTS 4D flow MR imaging demonstrated the inflow zone and yielded inflow velocity profiles for all 50 aneurysms. In 18 of 24 lateral-projection aneurysms (75%), the inflow zone was located distally on the aneurysmal neck. The maximum inflow velocity ranged from 285 to 922 mm/s. On 4D flow MR imaging and transluminal color-coded 3D MRA studies, the inflow zone of 32 aneurysms (64%) was at a similar location. In 91% of aneurysms whose neck section plane angle was <30° with respect to the imaging section direction on 3D TOF MRA, depiction of the inflow zone was similar on transluminal color-coded 3D MRA and 4D flow MR images. CONCLUSIONS 4D flow MR imaging can demonstrate the inflow zone and provide inflow velocity profiles. In aneurysms whose angle of the neck-section plane is obtuse vis-a-vis the imaging section on 3D TOF MRA scans, transluminal color-coded 3D MRA may depict the inflow zone reliably.
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Affiliation(s)
- K Futami
- From the Department of Neurosurgery (K.F.), Mattoh-Ishikawa Central Hospital, Ishikawa, Japan
| | - H Sano
- Departments of Neurosurgery (H.S., K.M., M.N., J.H.) and Radiology (F.U.), Kanazawa University School of Medicine, Ishikawa, Japan
| | - K Misaki
- Departments of Neurosurgery (H.S., K.M., M.N., J.H.) and Radiology (F.U.), Kanazawa University School of Medicine, Ishikawa, Japan
| | - M Nakada
- Departments of Neurosurgery (H.S., K.M., M.N., J.H.) and Radiology (F.U.), Kanazawa University School of Medicine, Ishikawa, Japan
| | - F Ueda
- From the Department of Neurosurgery (K.F.), Mattoh-Ishikawa Central Hospital, Ishikawa, Japan
| | - J Hamada
- Departments of Neurosurgery (H.S., K.M., M.N., J.H.) and Radiology (F.U.), Kanazawa University School of Medicine, Ishikawa, Japan
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17
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Nakajima N, Kawanishi M, Imamura S, Hirano F, Uchiyama M, Yamamoto K, Nagai H, Futami K, Katagiri T, Maita M, Kijima M. Development of a serology-based assay for efficacy evaluation of a lactococcicosis vaccine in Seriola fish. Fish Shellfish Immunol 2014; 38:135-139. [PMID: 24657319 DOI: 10.1016/j.fsi.2014.03.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 03/02/2014] [Accepted: 03/10/2014] [Indexed: 06/03/2023]
Abstract
Lactococcicosis is an infection caused by the bacterium Lactococcus garvieae and creates serious economic damage to cultured marine and fresh water fish industries. The use of the assay currently applied to evaluate the potency of the lactococcicosis vaccine is contingent upon meeting specific parameters after statistical analysis of the percent survival of the vaccinated yellowtail or greater amberjack fish after challenge with a virulent strain of L. garvieae. We found that measuring the serological response with a quantitative agglutinating antibody against the L. garvieae antigen (phenotype KG+) was an effective method of monitoring the potency of lactococcicosis vaccines. Vaccinated fish had significantly higher antibody titers than control fish when the L. garvieae Lg2-S strain was used as an antigen. Furthermore, the titer of the KG + agglutinating antibody was correlated with vaccine potency, and the cut-off titer was determined by comparing the data with those from the challenge test. An advantage of the proposed serology-based potency assay is that it will contribute to reduced numbers of animal deaths during vaccine potency evaluations.
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Affiliation(s)
- Nao Nakajima
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan.
| | - Michiko Kawanishi
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan
| | - Saiki Imamura
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan
| | - Fumiya Hirano
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan
| | - Mariko Uchiyama
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan
| | - Kinya Yamamoto
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan
| | - Hidetaka Nagai
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan
| | - Kunihiko Futami
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, Tokyo 108-8477, Japan
| | - Takayuki Katagiri
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, Tokyo 108-8477, Japan
| | - Masashi Maita
- Laboratory of Fish Health Management, Tokyo University of Marine Science and Technology, Tokyo 108-8477, Japan
| | - Mayumi Kijima
- National Veterinary Assay Laboratory, Ministry of Agriculture, Forestry and Fisheries, 1-15-1 Tokura, Kokubunji, Tokyo 185-8511, Japan
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18
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Chen J, Futami K, Petillo D, Peng J, Wang P, Knol J, Li Y, Khoo SK, Huang D, Qian CN, Zhao P, Dykyma K, Zhang R, Cao B, Yang XJ, Furge K, Williams BO, Teh BT. Deficiency of FLCN in mouse kidney led to development of polycystic kidneys and renal neoplasia. PLoS One 2008; 3:e3581. [PMID: 18974783 PMCID: PMC2570491 DOI: 10.1371/journal.pone.0003581] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2008] [Accepted: 10/09/2008] [Indexed: 11/19/2022] Open
Abstract
The Birt–Hogg–Dubé (BHD) disease is a genetic cancer syndrome. The responsible gene, BHD, has been identified by positional cloning and thought to be a novel tumor suppressor gene. BHD mutations cause many types of diseases including renal cell carcinomas, fibrofolliculomas, spontaneous pneumothorax, lung cysts, and colonic polyps/cancers. By combining Gateway Technology with the Ksp-Cre gene knockout system, we have developed a kidney-specific BHD knockout mouse model. BHDflox/flox/Ksp-Cre mice developed enlarged kidneys characterized by polycystic kidneys, hyperplasia, and cystic renal cell carcinoma. The affected BHDflox/flox/Ksp-Cre mice died of renal failure at approximate three weeks of age, having blood urea nitrogen levels over tenfold higher than those of BHD flox/+/Ksp-Cre and wild-type littermate controls. We further demonstrated that these phenotypes were caused by inactivation of BHD and subsequent activation of the mTOR pathway. Application of rapamycin, which inhibits mTOR activity, to the affected mice led to extended survival and inhibited further progression of cystogenesis. These results provide a correlation of kidney-targeted gene inactivation with renal carcinoma, and they suggest that the BHD product FLCN, functioning as a cyst and tumor suppressor, like other hamartoma syndrome–related proteins such as PTEN, LKB1, and TSC1/2, is a component of the mTOR pathway, constituting a novel FLCN-mTOR signaling branch that regulates cell growth/proliferation.
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MESH Headings
- Animals
- Animals, Newborn
- Carcinoma, Renal Cell/genetics
- Carcinoma, Renal Cell/metabolism
- Carcinoma, Renal Cell/pathology
- Carrier Proteins/metabolism
- Cloning, Molecular
- Embryo, Mammalian
- Genes, Lethal
- Genes, Tumor Suppressor/physiology
- Kidney/metabolism
- Kidney/pathology
- Kidney Neoplasms/genetics
- Kidney Neoplasms/metabolism
- Kidney Neoplasms/pathology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Models, Biological
- Organ Specificity/genetics
- Phosphotransferases (Alcohol Group Acceptor)/metabolism
- Polycystic Kidney Diseases/genetics
- Polycystic Kidney Diseases/metabolism
- Polycystic Kidney Diseases/pathology
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/metabolism
- TOR Serine-Threonine Kinases
- Tumor Suppressor Proteins/genetics
- Tumor Suppressor Proteins/metabolism
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Affiliation(s)
- Jindong Chen
- Laboratory of Cancer Genetics, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
- * E-mail: (BTT); (J-DC)
| | - Kunihiko Futami
- Laboratory of Cancer Genetics, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
- Course of Applied Marine Biosciences, Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Konan, Minato-ku, Tokyo, Japan
| | - David Petillo
- Laboratory of Cancer Genetics, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Jun Peng
- Genomic Medicine Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
| | - Pengfei Wang
- Stowers Institute for Medical Research, Kansas City, Missouri, United States of America
| | - Jared Knol
- Laboratory of Cell Signaling and Cancinogenesis, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Yan Li
- Laboratory of Cancer Genetics, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Sok-Kean Khoo
- Laboratory of Cancer Genetics, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
- Laboratory of Germline Modification and Cytogenetics, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Dan Huang
- Laboratory of Cancer Genetics, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Chao-Nan Qian
- Laboratory of Cancer Genetics, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Ping Zhao
- Laboratory of Antibody Technology, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Karl Dykyma
- Laboratory of Computational Biology, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Racheal Zhang
- Laboratory of Cancer Genetics, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Brian Cao
- Laboratory of Antibody Technology, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Ximing J. Yang
- Surgical Pathology, Northwestern University Feinberg School of Medicine, Feinberg, Chicago, Illinois, United States of America
| | - Kyle Furge
- Laboratory of Computational Biology, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Bart O. Williams
- Laboratory of Cell Signaling and Cancinogenesis, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Bin Tean Teh
- Laboratory of Cancer Genetics, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
- NCCS-VARI Translational Cancer Research Laboratory, National Cancer Centre, Singapore
- * E-mail: (BTT); (J-DC)
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19
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Nagano J, Kono S, Toyomura K, Mizoue T, Yin G, Mibu R, Tanaka M, Kakeji Y, Maehara Y, Okamura T, Ikejiri K, Futami K, Yasunami Y, Maekawa T, Takenaka K, Ichimiya H, Imaizumi N. Personality and Colorectal Cancer: The Fukuoka Colorectal Cancer Study. Jpn J Clin Oncol 2008; 38:553-61. [DOI: 10.1093/jjco/hyn067] [Citation(s) in RCA: 11] [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] [Indexed: 01/15/2023] Open
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20
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Mibu R, Tanaka S, Futami K, Shimada K, Hotokezaka M, Nakahara S, Ichimiya H, Kido H, Hirano Y, Kashiwagi T, Eguchi T, Mitsuki K, Mizumoto K, Tanaka M. Phase I/II study of irinotecan and UFT for advanced or metastatic colorectal cancer. Anticancer Res 2007; 27:2673-7. [PMID: 17695431] [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: 05/16/2023]
Abstract
UNLABELLED The aim of this study was to determine the recommended dose of irinotecan in combination with the fixed dose of oral UFT as first-line therapy in patients with advanced or recurrent colorectal cancer, and to evaluate the response rate and overall survival as a phase II study. PATIENTS AND METHODS Thirteen patients were recruited into a phase I trial. Four doses of irinotecan ranging from 60 to 150 mg/m2/day were administered intravenously on day 1 and day 16 in combination with UFT given orally from day 2 to day 15. In a phase II study, 53 patients received at least one cycle of this therapy. RESULTS The recommended dose of this combination was determined as irinotecan 120 mg/m2/day and UFT 400 mg/m2/day. Dose-limiting toxicities were neutropenia and prolonged leucopenia. On an intent-to-treat analysis, the response rate in the phase II study was 24.5% (95% confidence interval 13.8% to 38.2%). The median overall survival time was 20.3 months (95% confidence interval, 15.0-22.8 months). Out of 20 patients with stable disease, 17 who received more than 4 cycles of the regimen lived longer than the other 3 patients who received fewer than 3 cycles (p = 0.0353). Hematological adverse events were mainly grade 3/4 neutropenia observed in 6 out of 53 patients. Grade 3 non-hematological toxicities, such as diarrhea, anorexia, nausea/vomiting and alopecia were observed in 6 patients. CONCLUSION Irinotecan combined with oral UFT was effective and well-tolerated. This regimen may be considered as a first-line therapy for advanced or metastatic colorectal cancer and may result in fairly long survival, even for patients with stable disease.
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Affiliation(s)
- R Mibu
- Department of Surgery and Oncology, and 2First Department of Internal Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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21
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Futami K, Zhang H, Okamoto N. Functional divergence of duplicated c-myc genes in a tetraploid fish, the common carp (Cyprinus carpio). Gene 2005; 363:61-6. [PMID: 16242865 DOI: 10.1016/j.gene.2005.06.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2005] [Accepted: 06/27/2005] [Indexed: 11/20/2022]
Abstract
The proto-oncogene c-myc is thought to be one of the most important genes in controlling cell proliferation. In a tetraploid fish, two c-myc genes (CAM1 and CAM2) were previously isolated from the common carp, Cyprinus carpio, and were shown to have different expression patterns in adult tissues. Here we found that CAM1 and CAM2 proteins had distinct properties in terms of their transcription regulation system, formation of the transcription activator complex Myc/Max, and transcriptional activation of the target gene. These results showed that the two carp c-Myc proteins have overlapping but distinct functions, suggesting that CAM1 and CAM2 are evolving to acquire different functions after an earlier tetraploidization event.
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Affiliation(s)
- Kunihiko Futami
- Department of Marine Biosciences, Tokyo University of Marine Science and Technology, Konan 4, Minato-ku, Tokyo 108-8477, Japan
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22
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Yang XJ, Tan MH, Kim HL, Ditlev JA, Betten MW, Png CE, Kort EJ, Futami K, Furge KA, Takahashi M, Kanayama HO, Tan PH, Teh BS, Luan C, Wang K, Pins M, Tretiakova M, Anema J, Kahnoski R, Nicol T, Stadler W, Vogelzang NG, Amato R, Seligson D, Figlin R, Belldegrun A, Rogers CG, Teh BT. A Molecular Classification of Papillary Renal Cell Carcinoma. Cancer Res 2005; 65:5628-37. [PMID: 15994935 DOI: 10.1158/0008-5472.can-05-0533] [Citation(s) in RCA: 165] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Despite the moderate incidence of papillary renal cell carcinoma (PRCC), there is a disproportionately limited understanding of its underlying genetic programs. There is no effective therapy for metastatic PRCC, and patients are often excluded from kidney cancer trials. A morphologic classification of PRCC into type 1 and 2 tumors has been recently proposed, but its biological relevance remains uncertain. We studied the gene expression profiles of 34 cases of PRCC using Affymetrix HGU133 Plus 2.0 arrays (54,675 probe sets) using both unsupervised and supervised analyses. Comparative genomic microarray analysis was used to infer cytogenetic aberrations, and pathways were ranked with a curated database. Expression of selected genes was validated by immunohistochemistry in 34 samples with 15 independent tumors. We identified two highly distinct molecular PRCC subclasses with morphologic correlation. The first class, with excellent survival, corresponded to three histologic subtypes: type 1, low-grade type 2, and mixed type 1/low-grade type 2 tumors. The second class, with poor survival, corresponded to high-grade type 2 tumors (n = 11). Dysregulation of G1-S and G2-M checkpoint genes were found in class 1 and 2 tumors, respectively, alongside characteristic chromosomal aberrations. We identified a seven-transcript predictor that classified samples on cross-validation with 97% accuracy. Immunohistochemistry confirmed high expression of cytokeratin 7 in class 1 tumors and of topoisomerase IIalpha in class 2 tumors. We report two molecular subclasses of PRCC, which are biologically and clinically distinct and may be readily distinguished in a clinical setting.
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Affiliation(s)
- Ximing J Yang
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Illinois, USA
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23
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Abstract
Smad4 is defined as the common-mediator Smad (Co-Smad) required for transducing signals for all transforming growth factor-beta (TGF-beta) superfamily members. In this study, we have isolated eight distinct Smad4 full-length cDNAs from the common carp (Cyprinus carpio). These cDNAs were classified into four types and each type consisted of two subtypes. The eight cDNAs encoded four distinct proteins ranging from 505aa to 568aa in size, with close similarities in the Mad homology 1 and 2 (MH1 and MH2, respectively), but with differences in the linker regions and the C-terminus as well as in the 5'- and 3'-untranslated regions. Genomic Southern blotting demonstrated the existence of at least six Smad4 gene loci in the carp genome, meaning that the multiple forms of the carp Smad4 cDNAs were not due to allelic variations. Reverse transcriptase polymerase chain reaction (RT-PCR)/Southern hybridizations showed different expression patterns among the four types of Smad4s. These results suggest that some of carp Smad4s have deviated from the original function of Smad4 through vertebrate evolution, and regulated the TGF-beta signaling pathway by changing the expression level in tissues.
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Affiliation(s)
- Zhi Yong Wang
- Fisheries College, Jimei University, Xiamen, Fujian 361021, China
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24
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Abstract
The subject of this report is a rare case of a 5-year-old girl who developed an arachnoid cyst with a bony and dural defect in the parietal convexity. She had no history of head trauma or infection. Surgical exploration revealed the bulging lesion to consist of cerebrospinal fluid-containing spongy subcutaneous tissue and to extend into the bony and dural defect. The arachnoid cyst cavity was found beneath the subcutaneous lesion and was not connected to the adjacent subarachnoid space. Histologically, the subcutaneous tissue contained a complex of sinusoidal channels formed by an abundance of migrating arachnoidal cells, thus mimicking meningocele.
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Affiliation(s)
- Y Hayashi
- Department of Neurosurgery, Ishikawa Prefectural Central Hospital, Kanazawa University School of Medicine, 13-1 Takara-machi, Kanazawa 920-8641, Japan.
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25
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Abstract
We cloned the full-length cDNA of max gene from the common carp (Cyprinus carpio). The cDNA clone of carp max consists of 1209 bp and contained an ATG-initiated ORF consisting of 156 aa. The carp MAX share 76.7-93.8% aa identity with those of human, mouse, rat, chicken, Xenopus and zebrafish, respectively. The 15 bp alternative splicing was observed in the loop region of helix-loop-helix and is not previously described in mammalian max sequences. Transcripts of max gene were observed in all of the tissues of carp investigated in this study. The highest expression was found in the ovary, and the transcripts in hepatopancreas and heart were low. Two carp c-myc genes (CAM1 and CAM2) showed differential expression pattern. The expression of max was concomitant with CAM2 expression, but not with CAM1. It has been reported that MYC/MAX heterodimer as a regulator of gene expression has been maintained throughout vertebrate evolution, and the expression of c-myc has been concomitant with max expression. In addition, according to phylogenetic analysis, CAM1 is evolving faster than CAM2 after gene duplication. Therefore, this result suggests that CAM1 may evolve to obtain a new function different from c-myc.
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Affiliation(s)
- K Futami
- Department of Aquatic Biosciences, Tokyo University of Fisheries, Konan 4, Minato-ku, 108-8477, Tokyo, Japan
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Nakada M, Kita D, Futami K, Yamashita J, Fujimoto N, Sato H, Okada Y. Roles of membrane type 1 matrix metalloproteinase and tissue inhibitor of metalloproteinases 2 in invasion and dissemination of human malignant glioma. J Neurosurg 2001; 94:464-73. [PMID: 11235952 DOI: 10.3171/jns.2001.94.3.0464] [Citation(s) in RCA: 69] [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] [Indexed: 12/18/2022]
Abstract
OBJECT Acquisition of invasive and metastatic potentials through proteinase expression is an essential event in tumor progression. Among proteinases, matrix metalloproteinases (MMPs) are thought to play a key role in tumor progression through the degradation of the extracellular matrix. In the present study, the authors examined the role of MMP-2 (gelatinase A) and membrane type 1 MMP (MT1-MMP), an activator of the zymogen of MMP-2, proMMP-2, together with tissue inhibitors of metalloproteinases (TIMP-1 and TIMP-2) in the invasion of astrocytic tumors in humans. METHODS Analyses performed using sandwich enzyme immunoassays demonstrated that the production levels of pro-MMP-2 and TIMP-1, but not TIMP-2, are significantly higher in glioblastomas multiforme than in other grades of astrocytic tumors. Quantitative reverse transcription-polymerase chain reaction indicated that MT1-MMP is expressed predominantly in glioblastoma tissues, and its expression levels are significantly enhanced as tumor grade increases. In addition, the expression levels and proMMP-2 activation ratio were remarkably higher in glioblastomas associated with cerebrospinal fluid (CSF) dissemination than in those not associated with CSF dissemination. In contrast, an examination of TIMP-2 levels showed a reverse correlation. Like MT1-MMP, TIMP-1 and TIMP-2 were immunolocalized to neoplastic cells in glioblastoma samples. To study the roles of these molecules in the invasion of astrocytic tumors more fully, stable transfectants expressing the MT1-MMP gene were developed in a U251 human glioblastoma cell line. The MT1-MMP transfectants displayed prominent activation of proMMP-2 and invasive growth in three-dimensional collagen gel; however, mock transfectants and parental cells displayed noninvasive growth without the activation. The invasion and gelatinolytic activity of the transfectants were completely inhibited by addition of recombinant TIMP-2, but not recombinant TIMP-1. CONCLUSIONS These results indicate that MT1-MMP may contribute to tumor invasion and CSF dissemination of glioblastoma cells on the basis of an imbalance of TIMP-2.
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Affiliation(s)
- M Nakada
- Department of Neurosurgery, Kanazawa University School of Medicine, Japan
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Futami K, Zhang H, Okamoto N. [Molecular evolution of two c-myc genes of a tetraploid teleost, the common carp]. Tanpakushitsu Kakusan Koso 2000; 45:2943-8. [PMID: 11187801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Affiliation(s)
- K Futami
- Department of Aquatic Biosciences, Faculty of Fisheries, Tokyo University of Fisheries, Konan, Minato-ku, Tokyo 108-8477, Japan
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Tachikawa D, Arima S, Futami K. Immunohistochemical expression of thymidylate synthase as a prognostic factor and as a chemotherapeutic efficacy index in patients with colorectal carcinoma. Anticancer Res 2000; 20:4103-7. [PMID: 11131679] [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: 02/18/2023]
Abstract
BACKGROUND We assessed the importance of Thymidylate Synthase (TS) expression as a prognostic factor and as an index of therapeutic efficacy in patients with colorectal carcinoma. PATIENTS AND METHODS TS expression in 66 patients with colorectal carcinoma was immunohistochemically assessed using the anti-TS antibody. TS expression, TS activity, clinicopathological characteristics and survival were evaluated and the correlation among them was studied. RESULTS The cases studied included 53 patients with low grade positive/negative and 13 patients with high grade positive TS expression. TS levels were 8.69 +/- 10.01 pmol/g and 14.82 +/- 11.38 pmol/g, respectively. There was not correlation between clinicopathological characteristics and TS expression. Considering TS expression, the 5-year survival rate was significantly better for the 75.5% of the patients with low grade positive/negative TS than for the 38.5% of the patients with high grade positive TS (p < 0.01). CONCLUSION The immunohistochemical expression of TS should be further investigated as a prognostic factor of survival and as an index of chemotherapeutic efficacy in colorectal carcinoma.
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Affiliation(s)
- D Tachikawa
- Department of Surgery, Chikushi Hospital, Fukuoka University, Japan
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Affiliation(s)
- M Nakada
- Department of Neurosurgery, Himi Municipal Hospital, Japan
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Arima S, Tachikawa D, Kawahara K, Futami K. [Thymidylate synthase activity after preoperative administration of 5-FU in patients with gastric or colorectal cancer]. Gan To Kagaku Ryoho 2000; 27:703-10. [PMID: 10832438] [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: 02/16/2023]
Abstract
Continuous intravenous injection of 5-FU was given at 300 mg/m2 to patients with gastric or colorectal cancer for consecutive 3 days preoperatively, and the relationships between the time until collection of samples (from final administration of 5-FU to excision of tissue samples) and total thymidylate synthase (TS total) activity, free thymidylate synthase (TS free) activity, thymidylate synthase inhibition rate (TSIR), thimidine kinase (TK) activity, and tissue 5-FU and FdUMP concentrations investigated. TS total was shown to gradually reduce with time, but the relationship between time and the other assay items could not be identified due to large variability in the data. TS total and TK also proved to be affected also by the sites at which the samples were collected, and exhibited significantly higher enzyme activity in tumor tissue than that in normal tissue.
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Affiliation(s)
- S Arima
- Dept. of Surgery, Chikushi Hospital, Fukuoka University School of Medicine
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Abstract
We determined the heterogeneous transcription start points (tsp) of two c-myc genes from the common carp (Cyprinus carpio), tetraploid teleost, by the oligo-capping method and showed the existence of the first exon. This is the first report on the existence of the first exons of the fish c-myc gene. Transcription of the two carp c-myc genes started from at least four sites in CAM1, locating from -752 to -381bp upstream of the translation start site, and from 12 sites in CAM2, locating from -586 to -413bp upstream respectively. The first introns of CAM1 and CAM2 were deduced to be 335 and 356bp, respectively. They shared 86.9% nt identity, lower than those of the second exons (94.1%), and third exons (92.3%), which suggest that the first exons evolved faster. No nt identities were found between the c-myc first exons of carp and other vertebrates. The putative promoter regions in CAM1 and CAM2 contained no obvious TATA or CCAAT boxes in the expected positions.
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Affiliation(s)
- K Futami
- Department of Aquatic Biosciences, Tokyo University of Fisheries, Konan 4, Minato-ku, Tokyo, Japan
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Zhang H, Futami K, Horie N, Okamura A, Utoh T, Mikawa N, Yamada Y, Tanaka S, Okamoto N. Molecular cloning of fresh water and deep-sea rod opsin genes from Japanese eel Anguilla japonica and expressional analyses during sexual maturation. FEBS Lett 2000; 469:39-43. [PMID: 10708752 DOI: 10.1016/s0014-5793(00)01233-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We have determined the complete cDNA sequences of fresh water rod opsin gene (fwo) and deep-sea rod opsin gene (dso) from Japanese eel Anguilla japonica. The cDNA clones of fwo and dso consisted of 1437 and 1497 nucleotides, respectively. The predicted opsins of both genes consisted of 352 amino acid residues. Southern blot and PCR analyses of genomic DNA indicated that the Japanese eel genome contains only one fwo and one dso and they are intronless. Quantitative RT-PCR analyses revealed that the expression of fwo decreases with sexual maturation while that of dso increases.
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Affiliation(s)
- H Zhang
- IRAGO Institute, Shinden 377-Ehima, Atsumi-cho, Atsumi-gun, Aichi, Japan.
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Tachikawa D, Arima S, Futami K, Iwashita A. Do the expression of CD44, apoptosis and thymidylate synthase inhibition rate correlate with the efficacy of chemotherapy in colorectal cancer? Anticancer Res 2000; 20:595-600. [PMID: 10769701] [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: 02/16/2023]
Abstract
BACKGROUND Tegafur-uracil(UFT;TAIHO Pharmaceutical Co.Ltd, Tokyo, Japan) is commonly used to treat digestive cancers. However, the inhibitors of metastasis in this agent have not been fully examined. To investigate a cell adhesion molecule, CD44, which may very well contribute to the pathogenesis of metastasis, we examined the association of CD44 and the thymidylate synthase inhibition rate(TSIR) with prognosis, and examined the expression of apoptosis in patients who were administrated tegafur-uracil before surgery for colorectal cancer. MATERIALS AND METHODS This study included 66 patients who underwent curative resection of colorectal cancer. In these patients, tegafur-uracil(600 mg) was orally administered every day for 3 to 7 days before surgery, and Tegafur-uracil (400 mg) was orally administered every day for 2 years after surgery. CD44 and apoptosis were detected immunohistochemically and by the TUNNEL method, respectively. The TSIR was calculated from the total TS level, and free TS levels by modified Spears' method using fresh tumor tissue specimens. RESULTS The TSIR of non-recurrent patients was significantly higher than that of recurrent patients(p < 0.05). The 5-year survival rate in CD44-low grade positive/negative patients (81.6%) was significantly higher than that in CD44-high grade positive patients (46.4%) (p < 0.005). The 5-year survival rate in apoptosis-high grade positive patients (89.7%) was significantly higher than that in apoptosis-low grade positive/negative patients(46.4%) (p < 0.001). With respect to the relationship between CD44 and apoptosis, the proportion of apoptosis-high grade positive patients among CD44-low grade positive/negative patients (55.3%) was significantly higher than that among CD44-high grade positive patients(28.6%) (p < 0.05). In the multivariate analysis, the CD44 expression was suggestive of an independent prognostic factor. CONCLUSION Based on our results for TSIR, Tegafur-uracil may induce apoptosis of tumor cells in patients by the inhibition of thymidylate synthase. It was suggested that CD44 expression could be used as a possible independent predictor of survival. In addition, it was suggested that UFT, via the inhibition of CD44 expression caused the inhibition of distant metastasis.
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Affiliation(s)
- D Tachikawa
- Department of Surgery, Chikushi Hospital, Fukuoka University, Japan
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Ogihara Y, Kurihara Y, Futami K, Tsuji K, Murai K. Photoperiod-sensitive cytoplasmic male sterility in wheat: nuclear-mitochondrial incompatibility results in differential processing of the mitochondrial orf25 gene. Curr Genet 1999; 36:354-62. [PMID: 10654089 DOI: 10.1007/s002940050510] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [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: 11/26/2022]
Abstract
An alloplasmic wheat line with the cytoplasm of Aegilops crassa expresses photoperiod-sensitive cytoplasmic male sterility (PCMS). Southern- and Northern-hybridization analyses showed that this line contains alterations in both the gene structure and transcription patterns of the mitochondrial gene orf25. In this study, the nucleotide sequence around the orf25 gene of Ae. crassa (CR-orf25) and common wheat (AE-orf25) was determined, and we found that the upstream region of CR-orf25 had been replaced by that of rps7 of common wheat (AE-rps7) through recombination. A novel open reading frame (orf48) is present upstream of CR-orf25. In these three genes, transcription was initiated from the consensus promoter motif of plant mitochondrial genes located in the upstream regions. Processing enzymes in Ae. crassa and common wheat cleave the respective precursor mRNAs, namely CR-orf25 and AE-rps7, at sites similar to that of the premature mitochondrial 26S rRNA. In contrast, the precursor mRNA is not effectively processed at the target sequence of CR-orf25 in the alloplasmic wheat line. Because major transcripts of the euplasmic CR-orf25 and AE-rps7 genes would result in a truncated orf48 product, one possibility is that the orf48 protein might disturb mitochondrial function at a specific stage and hence affect the expression of the PCMS trait.
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Affiliation(s)
- Y Ogihara
- Kihara Institute for Biological Research, Yokohama City University, Japan.
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Tachikawa D, Inada S, Kotoh T, Futami K, Arima S, Iwashita A. An evaluation of malignancy and prognostic factors based on mode of lymph node metastasis in esophageal carcinoma. Surg Today 1999; 29:1131-5. [PMID: 10552329 DOI: 10.1007/bf02482260] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This study was conducted to evaluate lymph node metastasis as a key prognostic factor in esophageal cancer. Metastatic lesions in lymph nodes were grouped by histological morphology as intracapsular or extracapsular, and the significance of lymph node metastasis was evaluated by relating metastatic lesions to clinical pathologic factors and patient prognosis. In our hospital, 46 of 81 patients who underwent resection of esophageal cancer developed lymph node metastasis. These 46 patients were enrolled in a study analyzing the relationship between the metastatic mode and the clinicopathological factors. The frequency of extracapsular metastasis was significantly high in patients with a profound depth of cancer, three or more metastases, distant metastasis (n3 and n4), or severe lymphatic invasion. The prognosis was significantly worse in patients with extracapsular metastasis, and this tendency was also seen even in patients with three or more metastases, limited metastasis (n1 and n2), or mild lymphatic invasion (ly0 and ly1). These findings suggest that the metastatic mode reflects the degree of esophageal cancer progression and is an important prognostic factor.
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Affiliation(s)
- D Tachikawa
- Department of Surgery, Chikushi Hospital, Fukuoka University, Chikushino, Fukuoka, Japan
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Inada S, Koto T, Futami K, Arima S, Iwashita A. Evaluation of malignancy and the prognosis of esophageal cancer based on an immunohistochemical study (p53, E-cadherin, epidermal growth factor receptor). Surg Today 1999; 29:493-503. [PMID: 10385363 DOI: 10.1007/bf02482343] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.6] [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: 12/15/2022]
Abstract
The subjects in this study consisted of 40 preoperative untreated esophageal squamous cell carcinoma patients. While p53 did not significantly correlate with the clinicopathological factors, E-cadherin significantly correlated with lymphatic invasion, vascular invasion, the depth of invasion, the degree of lymph node metastasis, the histological stage, and the number of lymph node metastases. Epidermal growth factor receptor (EGFR) significantly correlated with age, the depth of invasion, and the number of lymph node metastases. The 5-year cumulative survival rate was 45.7% in the p53-positive cases and 61.9% in the p53-negative cases, with no significant difference, and 87.8% in the E-cadherin-positive cases and 19.1% in the -negative cases, and the difference was significant. The prognosis was significantly poor in EGFR-positive subjects: the 5-year survival rate was 38.6% in EGFR-positive cases and 68% in -negative cases. The 5-year survival rate in E-cadherin-negative, EGFR-positive cases was 0%, while it was 91.7% in the reverse pattern, and this difference was significant. These findings suggest that both E-cadherin and EGFR are important prognostic factors, and a more precise prognosis can thus be obtained by combining them. Such a combined technique may be very useful as an indicator for grading the biological malignancy of esophageal cancer.
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Affiliation(s)
- S Inada
- Department of Surgery, Chikushi Hospital, School of Medicine, Fukuoka University, Japan
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Yamasaki K, Hasegawa S, Futami K, Arima S. Endogenous TNF induction therapy using rTNF-SAM2 in patients with pulmonary metastases from colorectal cancer. Anticancer Res 1998; 18:3931-6. [PMID: 9854506] [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: 02/09/2023]
Abstract
BACKGROUND Distant metastases from colorectal cancer are generally refractory to conventional therapies, with the exception of surgical resection. The aim of this study was to evaluate the clinical application of endogenous TNF induction therapy by using a mutant TNF (rTNF-SAM2) as a primer in endogenous/exogenous TNF therapy (EET therapy) in patients with pulmonary metastases from colorectal cancer. METHODS The subjects were 17 patients, 5 of whom underwent EET therapy alone and 12 of whom underwent EET therapy and the administration of anticancer agents. RESULTS Partial response was observed in 6 patients (50%) who underwent EET therapy with anticancer agents. In seven (53.8%) of 13 patients who showed a high serum CEA value, their CEA levels were considered to be improved. Severe toxic effects occurred in 3 of the patients studied (17.6%). The mean survival was 26.0 months among those with a partial response and 16.6 months among those with no change. No significant difference was observed between these two groups. Histological assessments indicated that tumor necrosis, fibrosis and cellular infiltration tended to intensify in cases treated with EET therapy compared with the cases who received surgery alone. CONCLUSION EET therapy with anticancer agents is well-tolerated and effective for pulmonary metastases from colorectal cancer.
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Affiliation(s)
- K Yamasaki
- Department of Surgery, Fukuoka University, Chikushi Hospital, Japan
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Futami K, Yamashita J, Higashi S. Do cerebral aneurysms originate at the site of medial defects? Microscopic examinations of experimental aneurysms at the fenestration of the anterior cerebral artery in rats. Surg Neurol 1998; 50:141-6. [PMID: 9701119 DOI: 10.1016/s0090-3019(97)00154-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND The role of medial defects on cerebral aneurysm formation remains obscure. To examine whether cerebral aneurysms originate at the site of medial defects, we determined the exact locations of both the origin of experimental aneurysms and medial defects at the apex of fenestrations of the anterior cerebral artery (ACA) in rats. METHODS Cerebral aneurysms were induced in rats by means of the combination of ligation of the unilateral common carotid artery and induced hypertension. The ACA opposite the ligation was examined under a light microscope. RESULTS Medial defects, which could be observed in approximately one-half of the fenestrations, existed always around the lateral margin of the intimal pads. On the contrary, early aneurysmal lesions exclusively occurred at the portion just medial to the intimal pads. Subsequently, both pads and defects seemed to be involved in aneurysm walls. CONCLUSION These results clearly indicate that cerebral aneurysms do not originate at the site of medial defects.
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Affiliation(s)
- K Futami
- Department of Neurosurgery, Kanazawa University School of Medicine, Japan
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Ikeda K, Asakura H, Futami K, Yamashita J. Coagulative and fibrinolytic activation in cerebrospinal fluid and plasma after subarachnoid hemorrhage. Neurosurgery 1997; 41:344-9; discussion 349-50. [PMID: 9257301 DOI: 10.1097/00006123-199708000-00002] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE Intrathecal fibrinolytic therapy has been used as one of the anticerebral vasospasm (VS) preventative therapies in patients with subarachnoid hemorrhage (SAH). However, the changes in coagulation and fibrinolysis in the blood and cerebrospinal fluid (CSF) after SAH remain unknown. METHODS Fifty patients with SAH caused by ruptured cerebral aneurysms were studied postoperatively to detect the serial changes of the thrombin-antithrombin III complex, active plasminogen activator inhibitor (PAI)-1, and tissue plasminogen activator (tPA)-PAI complex (tPA-PAI) activities in the plasma and CSF collected from cisternal drainage catheters. RESULTS The CSF levels of all parameters and plasma PAI-1 levels were significantly higher in patients with severe SAH than in those with mild SAH. There was no relationship between the CSF and plasma levels of these parameters (except the CSF levels of tPA-PAI) and the initial neurological statuses. The CSF PAI-1 levels increased to greater than 20 ng/ml near the time of the occurrence of cerebral VS, whereas they remained below 20 ng/ml in patients without VS. The CSF tPA-PAI levels showed the highest peak near the time of VS remission. The CSF PAI-1 and tPA-PAI levels were significantly lower in patients with good outcomes than in those with poor outcomes. CONCLUSION Both the coagulative and fibrinolytic systems were activated in the CSF and plasma after SAH in correlating to the amount of SAH clot. The intrathecal administration of fibrinolytic agents should be started early after surgery, before CSF PAI-1 levels increase, for patients with severe SAH. Patients with CSF PAI-1 levels greater than 20 ng/ml experienced high incidence of VS and poor outcomes.
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Affiliation(s)
- K Ikeda
- Department of Neurosurgery, Kanazawa University School of Medicine, Japan
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Tateishi S, Arima S, Futami K. Assessment of blood flow in the small intestine by laser Doppler flowmetry: comparison of healthy small intestine and small intestine in Crohn's disease. J Gastroenterol 1997; 32:457-63. [PMID: 9250891 DOI: 10.1007/bf02934083] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Blood flow and blood distribution were investigated in 40 patients with normal small intestine and the relation between blood flow and the morphological features of Crohn's disease was examined in 11 patients with Crohn's disease by laser Doppler flowmetry from the serosal side during surgery. In normal small intestine, blood flow was measured at six points: upper, middle, and lower small intestine, each of the mesenteric borders, and the antimesenteric surface. In Crohn's disease, macroscopically normal tissue and affected lesions were observed in detail by intraoperative endoscopy after blood flow measurement. The blood flow values in the normal small intestine gradually decreased from the upper to the lower small intestine. As the level of inflammation progressed in Crohn's disease the blood flow values gradually decreased; the exudative stage of Crohn's disease (aphthoid ulcer) showed blood flow values that were slightly below those in macroscopically normal tissue. These results are the first to demonstrate decreased blood flow in affected lesions in Crohn's disease and changes in blood flow according to the degree of inflammation in vivo.
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Affiliation(s)
- S Tateishi
- Department of Surgery, Chikushi Hospital, Fukuoka University, Japan
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41
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Ogihara Y, Futami K, Tsuji K, Murai K. Alloplasmic wheats with Aegilops crassa cytoplasm which express photoperiod-sensitive homeotic transformations of anthers, show alterations in mitochondrial DNA structure and transcription. Mol Gen Genet 1997; 255:45-53. [PMID: 9230898 DOI: 10.1007/s004380050473] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Alloplasmic wheat. Triticum aestivum cv. Norin 26, with Aegilops crassa cytoplasm, shows photoperiod-sensitive cytoplasmic male sterility (PCMS). This alloplasmic line expresses pistillody of anthers only when grown in long-day conditions (> 15 h light). To assess the molecular basis of the PCMS, we carried out Southern and Northern hybridization analyses on mitochondrial DNAs and RNAs isolated from seedlings of alloplasmic lines showing various PCMS phenotypes using probes for twelve mitochondrial genes. All RFLP patterns of mitochondrial DNA from alloplasmic lines greatly differed from those of common wheat, and were slightly changed from those of the parental species, i.e., Ae. crassa. This indicates that nuclear substitutions between related plant species induce structural alterations in the mitochondrial genome. Furthermore, RFLP patterns of (cr)-N61 and FR-mutant probed with coxIII and orf25 were identical with each other, but different from those of the other alloplasmic lines, indicating that the nuclei of N61 and FR-mutant harbor some gene(s) that induces structural alterations of the mitochondrial genome in the coxIII and orf25 regions. The transcription patterns of atp6 and cob in Ae. crassa type were different from those of T. aestivum type. Furthermore, the orf25 transcript in alloplasmic wheats was about 300 nucleotides longer than that of euplasmic lines, including the Ae. crassa pure line, suggesting that transcription patterns of orf25 are associated with recovery from the PCMS phenomenon. These data clearly show the mutual cross-talk between the nuclear genome and chondriome. These observations raise the possibility that the dysfunction of mitochondria caused by the failure of a cooperative control of mitochondrial gene(s) expression influences the pathway of flower morphogenesis, especially in the process that determines organ identity.
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Affiliation(s)
- Y Ogihara
- Kihara Institute for Biological Research, Yokohama City University, Japan
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Hasegawa S, Iwashita A, Futami K, Kitamura K, Arima S. A Clinicopathological Study on Rectal Carcinoid with Special Reference to Immunohistochemical Factors of Malignant Potential. ACTA ACUST UNITED AC 1997. [DOI: 10.3862/jcoloproctology.50.163] [Citation(s) in RCA: 4] [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: 11/12/2022]
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Futami K, Yamashita J, Tachibana O, Kida S, Higashi S, Ikeda K, Yamashima T. Basic fibroblast growth factor may repair experimental cerebral aneurysms in rats. Stroke 1995; 26:1649-54. [PMID: 7660412 DOI: 10.1161/01.str.26.9.1649] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND AND PURPOSE To determine whether basic fibroblast growth factor (FGF) can induce proliferative response of endothelial cells and/or smooth muscle cells in aneurysmal lesions, we investigated the effect of the intravenous administration of basic FGF on experimental cerebral aneurysms. METHODS Cerebral aneurysms were induced in rats by ligation of the unilateral common carotid artery, producing hypertension. Three months later, basic FGF was intravenously injected in two groups of randomly divided rats on days 1, 3, and 5 at two different doses (low dose: 2 micrograms/100 g body wt per day; high dose: 5 micrograms/100 g body wt per day). In a control group, normal saline was similarly injected. The junctions of the anterior cerebral artery (ACA) and the olfactory artery (OA) were examined with a light microscope. Aneurysmal changes were defined as the lesions with discontinuity of the internal elastic lamina in more than half of the outward dilated wall. Depending on whether the smooth muscle cell layer was present in the whole wall, the lesions were divided into two stages: early aneurysmal lesion (whole area) and saccular aneurysm (not totally preserved). RESULTS The control and the low-dose groups presented no obvious intimal thickening in the intact ACA-OA junctions of both nonligated and ligated sides as well as in the aneurysmal changes. In contrast, in the high-dose group, various degrees of intimal thickening in the wall were detected in 7 of 15 early aneurysmal lesions (P = .019, Fisher's exact test). Immunohistochemistry showed the proliferated cells to be smooth muscle cells. CONCLUSIONS These results demonstrate that exogenous basic FGF induces the proliferative response of smooth muscle cells in aneurysmal lesions in rats.
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Affiliation(s)
- K Futami
- Department of Neurosurgery, Kanazawa University School of Medicine, Japan
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Futami K, Yamashita J, Tachibana O, Higashi S, Ikeda K, Yamashima T. Immunohistochemical alterations of fibronectin during the formation and proliferative repair of experimental cerebral aneurysms in rats. Stroke 1995; 26:1659-64. [PMID: 7660414 DOI: 10.1161/01.str.26.9.1659] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND AND PURPOSE To determine whether distributional changes of fibronectin, a factor promoting wound healing, occur during the formation and repair of cerebral saccular aneurysms, we performed immunohistochemical analyses in experimental aneurysms. METHODS Cerebral aneurysms were induced in rats by both the ligation of the unilateral common carotid artery and induced hypertension. Intimal proliferation in aneurysmal walls was induced by the ligation of the preserved common carotid artery 3 months after the first operation. The distribution of fibronectin was examined by immunohistochemistry in anterior cerebral artery-olfactory artery bifurcations under the following three conditions: normal bifurcations in control rats, early aneurysmal lesions during the aneurysm induction, and aneurysmal lesions with intimal proliferation. Furthermore, the immunohistochemical distributions of type I and IV collagens were examined to evaluate the specificity of fibronectin immunoreactivity. RESULTS In the normal bifurcations, fibronectin was positive in the subintimal space, the surrounding area of the medial smooth muscle cells, and the adventitial fibrous tissue. In early aneurysmal lesions, linear staining of fibronectin and type I and IV collagens in the subendothelial space disappeared with the loss of the internal elastic lamina. In the intimal proliferation of early aneurysmal lesions, fibronectin was strongly immunostained in the subendothelial space and diffusely immunostained in the widened extracellular space surrounding proliferated cells. In contrast, the stainings of type I and IV collagens were sparse or negative. CONCLUSIONS Although the present findings regarding dynamic changes of fibronectin distribution do not prove any causality in the process of aneurysm formation and repair, these immunohistochemical changes may constitute the crucial sequela of intimal endothelial damage and its subsequent recovery in cerebral aneurysms.
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Affiliation(s)
- K Futami
- Department of Neurosurgery, Kanazawa University School of Medicine, Japan
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Harada Y, Arima S, Futami K, Yamasaki K, Nishida T, Kotoh T, Tateishi S, Tateishi S, Inada S, Hara F. [A case of remarkable response of colon cancer with multiple liver and bone metastasis treated with tegafur and cisplatin]. Gan To Kagaku Ryoho 1995; 22:123-7. [PMID: 7826067] [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: 01/27/2023]
Abstract
A 47-year-old man with ascending colon cancer with multiple liver metastases and bone metastasis (VII thoracic vertebra) showed a remarkable response to the combination therapy of tegafur and cisplatin. Tegafur (1,200 mg/day) was administered through continuous intravenous infusion mixed with IVH, and cisplatin was given every two weeks at a dose of 100 mg. The total dose of tegafur was 39.6g and that of cisplatin was 300mg. After therapy, primary and metastatic lesions were remarkably reduced according to various imaging techniques, and the serum CEA level of 34ng/ml at diagnosis decreased 3.7 ng/ml. Various tumor-related symptoms were improved. Drug toxicity caused slight nausea and leucopenia. Right hemicolectomy with R2 lymph node dissection was performed after chemotherapy. Histologically, primary lesion and regional lymph nodes showed diffuse fibrosis and necrosis, and only a few cancer cells remained some vessels. These results suggested that the combination chemotherapy of tegafur and cisplatin is useful for the treatment of colon cancer.
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Affiliation(s)
- Y Harada
- Dept. of Surgery, Fukuoka University Chikushi Hospital
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Higashi S, Futami K, Matsuda H, Yamashita J, Hashimoto M, Hasegawa M, Tokuda K, Hassan M, Hisada K. Effects of head elevation on intracranial hemodynamics in patients with ventriculoperitoneal shunts. J Neurosurg 1994; 81:829-36. [PMID: 7965112 DOI: 10.3171/jns.1994.81.6.0829] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The present study was performed to investigate the effects of head elevation on intracranial hemodynamics in patients with ventriculoperitoneal (VP) shunts. The series included 35 hydrocephalic patients and five individuals without hydrocephalus who were used as controls. The hydrocephalic patients were divided into three groups: 15 patients who received VP shunts with a differential-pressure valve (DP group); 11 who received VP shunts with a variable-resistance valve (VR group), and 13 hydrocephalic patients (Hyd group) who had not received shunts (four underwent VP shunts later). The cerebral blood flow (CBF) of patients in the supine and upright positions was measured by technetium-99m hexamethylpropylenamine oxide (HMPAO) single-photon emission computerized tomography in each patient, using the subtraction technique. Cerebral perfusion pressure (CPP) was taken as the difference between the mean arterial blood pressure and ventricular fluid pressure, both referenced to the level of the foramen of Mono. The patients' heads were elevated stepwise from supine to upright. Percent changes of the mean CBF in the upright position (% delta mCBFupr) were 24.9% +/- 4.3% (mean +/- standard error of the mean) in the DP group, 6.2% +/- 2.7% in the VR group, 3.5% +/- 2.6% in the Hyd group, and 4.5% +/- 2.2% in the control group. Patients in the DP group showed a pathological increase in CPP with head elevation, whereas those in the Hyd and VR groups showed a physiological decrease in CPP. Three patients with differential-pressure valves, whose % delta mCBFupr was markedly high, developed low-intracranial pressure syndrome. In conclusion, shunted patients with a DP valve showed pathological intracranial hemodynamics in the upright position. This pathological hemodynamic stress in patients with long-standing differential-pressure valve implantation may induce pathological changes in the brain such as subependymal gliosis.
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Affiliation(s)
- S Higashi
- Department of Neurosurgery, Kanazawa University School of Medicine, Japan
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Kotoh T, Arima S, Futami K. [A case of retroperitoneal lymph node recurrence with gallbladder cancer responding to UFT and CDDP combination chemotherapy]. Gan To Kagaku Ryoho 1994; 21:881-4. [PMID: 8185350] [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: 01/29/2023]
Abstract
A 64-year-old women with gallbladder cancer was treated by extended cholecystectomy and regional lymph node dissection. At 18 months after surgery, an enlarged retroperitoneal lymph node due to recurrence was demonstrated by computed tomography, and CEA and CA 19-9 showed high serum levels. Combination chemotherapy consisting of UFT administered orally at 200 mg daily and CDDP infused at 40 mg/m2 every 2 weeks was performed in 3 courses. After this therapy, the retroperitoneal lymph node was undetectable by computed tomography and both CEA and CA 19-9 decreased to within normal levels. It appeared that this chemotherapy is effective for gallbladder cancer.
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Affiliation(s)
- T Kotoh
- Dept. of Surgery, Fukuoka University Chikushi Hospital
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Abstract
A 46-year-old male presented with a penetrating injury of the transverse sinus caused by a nail-gun. Open craniotomy reflected a doughnut-shaped bone flap and the 45 mm long nail, which was fortunately only touching the edge of the sinus, successfully removed. A wide surgical exposure and careful manipulation of the embedded nail are important to avoid inadvertent injury to the venous sinus and the surrounding brain tissues during the surgical procedure.
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Affiliation(s)
- T Okada
- Department of Neurosurgery, Kanazawa University School of Medicine
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Abstract
The authors present a case of lipoma in the sylvian fissure associated with a saccular aneurysm of the middle cerebral artery. The aneurysm was successfully clipped following the partial resection of the tumor. This is the first reported case of this combined pathology. The value of cerebral angiography in this disease entity and the possible etiology of the association of an aneurysm with a lipoma are discussed.
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Affiliation(s)
- K Futami
- Department of Neurosurgery, Matsuto-Ishikawa Central Hospital, Japan
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Arima S, Yoshimura S, Futami K, Yao T. The postoperative recurrence of Crohn's disease: an analysis of 37 patients with Crohn's disease who underwent endoscopy during initial surgery. Surg Today 1992; 22:346-50. [PMID: 1392346 DOI: 10.1007/bf00308744] [Citation(s) in RCA: 6] [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: 12/26/2022]
Abstract
A total 37 patients with Crohn's disease who underwent intraoperative endoscopy during resection of the affected intestine were evaluated in this study. The average age of the patients at surgery was 23.2 years. The residual lesions in the remaining intestine identified by intraoperative endoscopy were classified according to their pathologic profiles into three groups: A, B and C. In group A, comprising patients with longitudinal ulcers and/or a cobblestone appearance, 10 of 12 patients had recurrence. In 5 of these 10, the residual lesions were exacerbated and 2 required a further operation. The remaining 5 patients showed recurrence at the site of previous anastomosis and 2 of these 5 required additional surgery. In group B, comprising patients with small ulcers, aphthoid ulcers, or scars, and group C, comprising patients with no residual lesions, recurrence was observed in 13 of 16, and 3 of 9 patients, respectively. The recurrent lesions were all found proximal to, or at the site of previous anastomosis. Additional operations were performed on 3 of the group B patients. The findings of this study revealed that recurrence requiring additional surgery is more frequent at the site of anastomosis, regardless of the endoscopic appearance of the residual lesions.
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Affiliation(s)
- S Arima
- Department of Surgery, Chikushi Hospital, School of Medicine, Fukuoka University, Japan
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