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Muraki K, Ogo E, Suefuji H, Eto H, Hattori C, Tsuji C, Miyata Y, Himuro H, Hayashi S, Chikui K, Nakiri M, Igawa T, Abe T. The Analysis of Radioactive Implant Migration in Patients Treated With Iodine-125 Seeds for Permanent Prostate Brachytherapy with Median Lobe Hyperplasia. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Yokogawa N, Eto H, Tanikawa A, Ikeda T, Yamamoto K, Takahashi T, Mizukami H, Sato T, Yokota N, Furukawa F. Effects of Hydroxychloroquine in Patients With Cutaneous Lupus Erythematosus: A Multicenter, Double-Blind, Randomized, Parallel-Group Trial. Arthritis Rheumatol 2017; 69:791-799. [PMID: 27992698 DOI: 10.1002/art.40018] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 12/06/2016] [Indexed: 01/20/2023]
Abstract
OBJECTIVE To assess the efficacy and tolerability of hydroxychloroquine (HCQ) in patients with cutaneous lupus erythematosus (CLE), in a phase III clinical trial conducted in Japan. METHODS We conducted a double-blind, randomized, parallel-group clinical trial. This was a baseline-controlled study, and the group differences were evaluated in an exploratory analysis. A total of 103 patients with active CLE (according to a Cutaneous Lupus Erythematosus Disease Area and Severity Index [CLASI] activity score of ≥4) were included. Patients were randomized 3:1 to receive HCQ or placebo during the 16-week double-blind period, and all patients were given HCQ during the following 36-week single-blind period. The primary efficacy end point was a reduction in the CLASI activity score at week 16. The secondary end points included the central photo evaluation (5-point scale), patient's global assessment (7-point scale), the Skindex-29 score, and investigator's global assessment (7-point scale, based on the other 3 secondary end points). In patients with systemic lupus erythematosus, fatigue and musculoskeletal pain were assessed. Safety was assessed up to week 55. RESULTS The mean CLASI score at week 16 was significantly improved from baseline in both the HCQ group and the placebo group: mean change -4.6 (95% confidence interval [95% CI] -6.1, -3.1) (P < 0.0001), and mean change -3.2 (95% CI -5.1, -1.3) (P = 0.002), respectively, without between-group difference (P = 0.197). The investigator's global assessment demonstrated a greater proportion of "improved" and "remarkably improved" patients in the HCQ group (51.4% versus 8.7% in the placebo group [P = 0.0002 between groups]). The other secondary end points supported the efficacy of HCQ. Cellulitis, drug eruption, hepatic dysfunction, and Stevens-Johnson syndrome were shown to be serious adverse events related to HCQ use. CONCLUSION The results of this randomized clinical trial support the efficacy and tolerability of HCQ in patients with CLE.
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Affiliation(s)
- N Yokogawa
- Tokyo Metropolitan Tama Medical Center, Tokyo, Japan
| | - H Eto
- St. Luke's International Hospital, Tokyo, Japan
| | - A Tanikawa
- Keio University School of Medicine, Tokyo, Japan
| | - T Ikeda
- Wakayama Medical University, Wakayama, Japan
| | | | | | | | - T Sato
- Sanofi K.K., Tokyo, Japan
| | | | - F Furukawa
- Wakayama Medical University, Wakayama, Japan
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Muraki K, Suefuji H, Ogo E, Eto H, Tsuji C, Hattori C, Miyata Y, Himuro H, Abe T, Hayashi S, Chikui K, Nakiri M, Igawa T. PV-0190: The analysis of prostate cancer with median lobe hyperplasia treated I-125 brachytherapy. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30633-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Fujioka K, Fujioka A, Oishi M, Eto H, Tajima S, Nakayama T. Ultrasonography findings of intradermal nodular fasciitis: a rare case report and review of the literature. Clin Exp Dermatol 2017; 42:335-336. [PMID: 28300319 DOI: 10.1111/ced.13002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2016] [Indexed: 01/10/2023]
Affiliation(s)
- K Fujioka
- Division of Laboratory Medicine, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 Ohyaguchi-kamicho, Itabashi-ku, Tokyo, 173-8610, Japan
| | - A Fujioka
- Fujioka Dermatological Clinic, Tokyo, Japan
| | - M Oishi
- Department of Internal Medicine, Izutobu General Hospital, Shizuoka, Japan
| | - H Eto
- Department of Dermatology, St. Luke's International Hospital, Tokyo, Japan
| | - S Tajima
- Department of Dermatology, National Defence Medical College, Saitama, Japan
| | - T Nakayama
- Division of Laboratory Medicine, Department of Pathology and Microbiology, Nihon University School of Medicine, 30-1 Ohyaguchi-kamicho, Itabashi-ku, Tokyo, 173-8610, Japan
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5
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Zenke Y, Nakano T, Eto H, Koga H, Hashimoto T. A case of vancomycin-associated linear IgA bullous dermatosis and IgA antibodies to the α3 subunit of laminin-332. Br J Dermatol 2014; 170:965-9. [DOI: 10.1111/bjd.12720] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Y. Zenke
- Department of Dermatology; St Luke's International Hospital; 9-1 Akashi-cho Chuo-ku Tokyo 104-8560 Japan
| | - T. Nakano
- Department of Dermatology; St Luke's International Hospital; 9-1 Akashi-cho Chuo-ku Tokyo 104-8560 Japan
| | - H. Eto
- Department of Dermatology; St Luke's International Hospital; 9-1 Akashi-cho Chuo-ku Tokyo 104-8560 Japan
| | - H. Koga
- Department of Dermatology; Kurume University School of Medicine and Institute of Cutaneous Cell Biology; Kurume Fukuoka Japan
| | - T. Hashimoto
- Department of Dermatology; Kurume University School of Medicine and Institute of Cutaneous Cell Biology; Kurume Fukuoka Japan
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Matsumoto Y, Nakai K, Tsutsumi M, Iko M, Oishi H, Eto H, Mizokami T, Nii K, Aikawa H, Kazekawa K. A simplified pull-through angioplasty technique without a snare device. A technical note. Interv Neuroradiol 2013; 19:167-72. [PMID: 23693039 DOI: 10.1177/159101991301900204] [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] [Received: 05/12/2012] [Accepted: 01/13/2013] [Indexed: 11/16/2022] Open
Abstract
The pull-through angioplasty technique allows stable wire tension and stabilization of the device during the procedure. In this technique, a guide wire is passed from one sheath to another, usually with the aid of a snare device. We describe the treatment of occlusive subclavian artery disease and lesion at the origin of the vertebral artery employing a brachiofemoral pull-through technique without using a snare device. In this technique, the guide wire is advanced from the femoral artery to the brachial artery. The guide wire is directly inserted into the sheath placed at the brachial artery. The brachial artery is compressed proximal to the point of sheath insertion to prevent bleeding. The sheath is extracted temporally and the guide wire is caught outside of the body. The sheath is then introduced again through the guide wire. We used the pull-through technique without a snare device in seven cases, and we were able to build the pull-through system in six of these cases without a snare device. This pull-through technique without a snare device is not difficult to use, and may reduce the time and cost of angioplasty procedures.
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Affiliation(s)
- Y Matsumoto
- Department of Neurosurgery, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
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Hamada N, Miyata M, Eto H, Shirasawa T, Nagaki A, Tei C. Abstract: P166 TACROLIMUS-ELUTING STENT INHIBITS NEOINTIMAL HYPERPLASIA VIA CALCINEURIN/NFAT SIGNALING IN PORCINE CORONARY ARTERY MODEL. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70473-8] [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: 11/26/2022]
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Suga H, Eto H, Inoue K, Aoi N, Kato H, Araki J, Higashino T, Yoshimura K. Cellular and molecular features of lipoma tissue: comparison with normal adipose tissue. Br J Dermatol 2009; 161:819-25. [PMID: 19558598 DOI: 10.1111/j.1365-2133.2009.09272.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Involvement of adipose-derived stem/progenitor/stromal cells (ASCs) in the development of lipomas has been suggested, but the pathogenesis and pathophysiology of this tumour remain unclear. OBJECTIVES To analyse cellular and transcriptional characteristics of lipoma tissue compared with normal adipose tissue, further to delineate differentiating features. METHODS For lipoma or normal adipose tissues, we used a new whole-mount staining enabling three-dimensional imaging of nonfixed and nonfrozen adipose tissue. Immunohistochemistry and real-time polymerase chain reaction for obesity-related genes were performed as well as comparative assay of the proliferative and adipogenic capacity of ASCs. RESULTS A large number of small adipocytes surrounded by CD34+/lectin- ASCs and increased numbers of Ki67+/CD34+ ASCs indicated enhanced adipogenesis in lipoma compared with normal adipose tissue. In contrast, cellular apoptosis was not enhanced in lipoma, suggesting that the enlargement of lipoma tissue may be due to a positive balance of adipocyte turnover (accelerated adipogenesis combined with nonenhanced apoptosis). Leptin mRNA was upregulated in lipoma, while adiponectin, tumour necrosis factor-alpha and glucose transporter 1 mRNA were downregulated and there were no apparent changes in hypoxia-inducible factor 1alpha, peroxisome proliferator-activated receptor-gamma and plasminogen activator inhibitor-1. These results suggested dysfunction of lipoma adipocytes similar to that in obesity, but indicated that lipoma tissue lacked several obesity-related phenomena such as ischaemia (hypoxia), macrophage infiltration, inflammatory reactions and enhanced glycolysis. ASCs from lipoma and normal adipose tissue showed similar proliferative and adipogenic capacity. CONCLUSIONS Our findings revealed that lipoma tissue shows a positive balance of adipocyte turnover involving proliferating ASCs and several transcriptional differences from adipose tissue enlargement in obesity.
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Affiliation(s)
- H Suga
- Department of Plastic Surgery, University of Tokyo Graduate School of Medicine, Bunkyo-Ku, Tokyo 113-8655, Japan
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Miyake H, Sakai I, Ishimura T, Hara I, Eto H. Significance of cancer detection in the anterior lateral horn on systematic prostate biopsy: the effect on pathological findings of radical prostatectomy specimens. BJU Int 2004; 93:57-9; discussion 59. [PMID: 14678368 DOI: 10.1111/j.1464-410x.2004.04555.x] [Citation(s) in RCA: 19] [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] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To clarify the significance of cancer detection in the anterior lateral horn (ALH) on systematic prostate biopsy in relation to its effect on the pathological findings from retropubic radical prostatectomy (RRP) specimens. PATIENTS AND METHODS The study included 84 consecutive patients who underwent RRP at our institution between January 1999 and December 2002, after being diagnosed as having prostate cancer, based on systematic prostate biopsies that included the areas taken by standard sextant biopsies and the bilateral ALHs. Several clinicopathological factors of these patients were analysed in relation to the presence or absence of cancer in the ALH on systematic biopsy. RESULTS Of the 84 patients, cancer was detected in the ALH in 44 (group A), but not in the remaining 40 (group B). There were no significant differences in age, preoperative serum prostate-specific antigen level, or prostate volume between the groups. However, the incidence of bilateral positive cores and the percentage of positive biopsy cores in group A were significantly higher than those in group B. Pathological examinations of RRP specimens showed no significant differences in the incidence of lymphatic invasion, vascular invasion and perineural invasion, or Gleason score between the groups, but group A had a significantly larger tumour volume and higher incidence of extraprostatic disease than group B. CONCLUSIONS Despite similar biological tumour characteristics and irrespective of the cancer location in the ALH, advanced and extensive disease frequently involves the ALH. Therefore, more aggressive treatment should be considered if cancer is detected in the ALH by systematic prostate biopsy.
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Affiliation(s)
- H Miyake
- Department of Urology, Hyogo Medical Center for Adults, Akashi, Japan.
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10
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Abstract
OBJECTIVES To examine whether orthotopic neobladder replacement using either ileum or colon segments results in increased oxidative stress, by measuring urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG), one of the most commonly used markers for evaluating oxidative DNA damage. PATIENTS, SUBJECTS AND METHODS Urinary levels of 8-OHdG and creatinine, urine analysis, nutritional status, and acid-base and electrolyte balances, were assessed in 22 patients with an ileal neobladder, 28 with a colon neobladder, 37 with an ileal conduit and 22 healthy volunteers. The results from both types of orthotopic neobladder, the ileal conduit and in the healthy controls were compared. RESULTS The mean (sd) ratios of urinary 8-OHdG to urinary creatinine in patients with an ileal neobladder, colon neobladder, ileal conduit and in controls were 20.4 (7.8), 15.2 (4.3), 15.9 (5.1) and 15.2 (5.4) ng/mg, respectively. The urinary 8-OHdG ratio in the first group was significantly higher than in the other three groups. Among patients with a neobladder, the urinary 8-OHdG ratio was closely associated with the degree of pyuria, but not age, gender, the interval from surgery, body weight, height, serum creatinine or the degree of metabolic acidosis. CONCLUSIONS These findings suggest that creating an ileal neobladder caused significantly greater oxidative stress than a colon neobladder, ileal conduit, or that in healthy controls. Therefore, it is recommended to conduct a careful long-term follow-up considering the possible development of malignant disease after urinary diversion, especially by an ileal neobladder.
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Affiliation(s)
- H Miyake
- Department of Urology, Hyogo Medical Center for Adults, Akashi, Japan.
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11
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Tsujino Y, Hieda Y, Kimura K, Eto H, Yakabe T, Takayama K, Dekio S. Distribution of kerosene components in rats following dermal exposure. Int J Legal Med 2002; 116:207-11. [PMID: 12185490 DOI: 10.1007/s00414-001-0282-7] [Citation(s) in RCA: 7] [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: 06/11/2001] [Accepted: 11/23/2001] [Indexed: 10/25/2022]
Abstract
The systemic distribution of kerosene components in blood and tissues was analysed in rats following dermal exposure. Four types of trimethylbenzenes (TMBs) and aliphatic hydrocarbons (AHCs) with carbon numbers 9-16 (C(9)-C(16)) were analysed as major kerosene components by capillary gas chromatography/mass spectrometry (GC/MS). The kerosene components were detected in blood and all tissues after a small piece of cotton soaked with kerosene was applied to the abdominal skin. The amounts of TMBs detected were higher than those of AHCs. Greater increases in TMB levels were found in adipose tissue in an exposure duration-dependent manner. The amounts of TMBs detected were only at trace levels following post-mortem dermal exposure to kerosene. These findings suggest that kerosene components were absorbed percutaneously and distributed to various organs via the blood circulation. Post-mortem or ante-mortem exposure to kerosene could be distinguished when the exposure duration was relatively long. Adipose tissue would seem to be the most useful for estimating the degree of kerosene exposure.
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Affiliation(s)
- Y Tsujino
- Department of Dermatology, Shimane Medical University, 89-1 Enya, Izumo, Shimane 693-8501, Japan
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12
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Uezono T, Matsubara K, Shimizu K, Mizukami H, Ogawa K, Saito O, Hayase N, Eto H, Kimura K, Shiono H. Glutamate is not involved in the MPP+-induced dopamine overflow in the striatum of freely moving C57BL/6 mice. J Neural Transm (Vienna) 2002; 108:899-908. [PMID: 11685630 DOI: 10.1007/s007020170011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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: 11/07/2000] [Accepted: 02/28/2001] [Indexed: 11/29/2022]
Abstract
The role of glutamate in the N-methyl-4-phenyldihydropyridinium (MPP+) toxicity has been argued in the past decade. However, the effects of glutamate efflux and NMDA antagonist on MPP+-induced dopamine overflow have not been documented. To clarify this, we perfused MPP+ through a microdialysis probe in the striatum of freely moving mature C57BL/6 mice. The 60-min perfusion of 10 and 100 microM MPP+ strikingly increased dopamine levels to 28- and 93-fold of the basal values, respectively. In contrast, an administration of MPP+ did not induce marked glutamate release: the MPP+-perfusion slightly increased the glutamate level at 100 microM, but not at 10 microM. The addition of 100 microM (+)-MK-801 or 200 microM (+/-)-AP-7 to the perfusate did not attenuate MPP+-induced dopamine overflow. The extent of dopamine release only depended on the amount of MPP+ accumulation into the cells. These results indicated that, at least in the striatum, neither glutamate release nor the NMDA antagonist, including (+)-MK-801, could regulate MPP+-evoked dopamine overflow.
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Affiliation(s)
- T Uezono
- Department of Legal Medicine, Asahikawa Medical College, Japan
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13
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Miyata M, Biro S, Kaieda H, Eto H, Orihara K, Kihara T, Obata H, Matsushita N, Matsuyama T, Tei C. Apolipoprotein J/clusterin is induced in vascular smooth muscle cells after vascular injury. Circulation 2001; 104:1407-12. [PMID: 11560857 DOI: 10.1161/hc3701.095583] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [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: 01/15/2023]
Abstract
BACKGROUND Understanding the precise molecular mechanisms underlying the phenomenon of restenosis after PTCA may help us to develop a new strategy for the treatment of restenosis after PTCA. The purpose of this study was to identify the genes involved in vascular restenosis. METHODS AND RESULTS Applying a differential hybridization method to a model of the balloon-injured rabbit aorta, we identified 6 cDNA clones that were upregulated after injury. Northern blot showed that 5 genes, but not apolipoprotein J (apoJ)/clusterin, were constitutively expressed in noninjured aorta and upregulated after balloon injury. ApoJ mRNA was not detectable in noninjured aorta (control), began to be expressed at 6 hours after injury, showed a peak level at 24 hours (a 48-fold increase), gradually declined, and returned to the control level at 24 weeks. Western blot and immunohistochemistry demonstrated no expression of apoJ protein in noninjured aorta, an expression of apoJ at 2 days after balloon injury, and a peak level (a 55-fold increase) at 2 to 8 weeks. The expression of apoJ protein continued until 24 weeks after injury. In situ hybridization revealed that apoJ mRNA was expressed in smooth muscle cells (SMCs) of media at 2 days after injury and in SMCs of media and neointima at 2 weeks. To analyze the function of apoJ, stably transfected rabbit SMCs were created. The expression of apoJ stimulated proliferation and migration of SMCs. CONCLUSIONS ApoJ is dramatically induced in media and neointima after vascular injury, suggesting that apoJ contributes to restenosis after angioplasty.
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MESH Headings
- Angioplasty, Balloon, Coronary/adverse effects
- Animals
- Aorta/injuries
- Aorta/metabolism
- Aorta/pathology
- Aortic Diseases/etiology
- Aortic Diseases/metabolism
- Aortic Diseases/pathology
- Blotting, Western
- Cell Division/drug effects
- Cell Movement/drug effects
- Cells, Cultured
- Clusterin
- Disease Models, Animal
- Gene Expression Profiling
- Gene Expression Regulation
- Glycoproteins/biosynthesis
- Glycoproteins/genetics
- Glycoproteins/pharmacology
- Immunohistochemistry
- In Situ Hybridization
- Male
- Molecular Chaperones/biosynthesis
- Molecular Chaperones/genetics
- Molecular Chaperones/pharmacology
- Molecular Sequence Data
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- RNA, Messenger/biosynthesis
- Rabbits
- Sequence Analysis, DNA
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Affiliation(s)
- M Miyata
- First Department of Internal Medicine, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
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Hara I, Miyake H, Hara S, Gotoh A, Eto H, Arakawa S, Kamidono S. Long-term results of neoadjuvant hormonal therapy prior to radical prostatectomy in patients with clinically localized prostate cancer: biochemical and pathological effects. Hinyokika Kiyo 2001; 47:453-8. [PMID: 11523127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
The objective of this study was to evaluate the long-term biochemical and pathological effects induced by neoadjuvant hormonal therapy (NHT) in patients with clinically localized disease. Between March 1993 and May 1997, 24 patients with clinically localized prostate cancer received NHT for 3 to 11 months (median: 5 months) using luteinizing hormone-releasing hormone analogue prior to radical prostatectomy and pelvic lymphadenectomy. The clinical stage was T1 in 1 patient, T2 in 17 and T3 in 6, the pretreatment serum prostate-specific antigen (PSA) value was < or = 10 ng/ml in 5 patients, 10 to 20 ng/ml in 4 and > 20 ng/ml in 15 (mean: 34.7 micrograms/l), and the Gleason score was < or = 4 in 9 patients, 5 to 7 in 11 and > 8 in 3. The mean prostate specific antigen (PSA) value 3 months after NHT had reduced below 2 ng/ml in 18 of the 24 patients (67%), and finally decreased by an average of 95% (i.e., 1.9 ng/ml) prior to surgery. The pathological stage was pT0 in 2 patients, pT2 in 10 and pT3 in 12. The incidence of organ-confined disease (OCD) was significantly higher in patients with clinical stage T1 or T2a than with T2b or T3, with pretreatment PSA values < or = 10 ng/ml than with PSA values > 10 ng/ml, and with PSA values < or = 2 than with PSA values > 2 at 3 months after NHT; in contrast, the Gleason score had no significant impact on the rate of OCD. After a median follow-up of 49 months (range 34 to 85 months), 6 patients (25%) had a recurrence evidenced by rising PSA, and the 3-year recurrence-free survival rate was 79%. These results suggest that NHT appears not to be of significant additional benefit to patients who have a higher clinical T stage, higher pretreatment PSA values and/or in patients whose PSA values do not normalize early in the treatment process.
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Affiliation(s)
- I Hara
- Department of Urology, Kobe University School of Medicine
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15
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Hara I, Miyake H, Hara S, Yamanaka N, Ono Y, Eto H, Takechi Y, Arakawa S, Kamidono S. Value of the serum prostate-specific antigen-alpha 1-antichymotrypsin complex and its density as a predictor for the extent of prostate cancer. BJU Int 2001; 88:53-7. [PMID: 11446846 DOI: 10.1046/j.1464-410x.2001.02238.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [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: 11/20/2022]
Abstract
OBJECTIVE To determine whether serum levels of the prostate-specific antigen-alpha1-antichymotrypsin complex (PSA-ACT) and its density (ACTD) in patients scheduled to undergo radical prostatectomy for clinically localized prostate cancer can predict organ-confined vs extraprostatic disease. PATIENTS AND METHODS Serum samples were obtained from 62 patients with clinically localized prostate cancer before they underwent radical prostatectomy. PSA and PSA-ACT were measured using immunofluorometric techniques with different monoclonal antibodies against PSA and ACT, respectively. Furthermore, the PSA and PSA-ACT densities of the whole prostate (PSAD and ACTD, respectively) were calculated. The relationships of serum PSA, PSA-ACT, PSAD, ACTD and the pathological stage of the prostatectomy specimens were analysed. RESULTS The disease was organ-confined or extraprostatic in 30 and 32 men, respectively. In men with organ-confined cancer, the mean PSA and PSA-ACT levels were significantly lower than in those with extraprostatic disease. Furthermore, there were significantly higher mean PSAD and ACTD levels in men with extraprostatic than with organ-confined disease. There were also significant differences in PSA, PSA-ACT, PSAD and ACTD levels at each pathological stage, whereas there was no significant association between these variables and the Gleason score. Receiver-operating characteristic curve analysis for detecting organ-confined disease showed that PSA-ACT and ACTD had a larger area under the curve than PSA and PSAD, respectively, but these differences were not significant. Furthermore, PSA-ACT and ACTD provided significantly better sensitivity for detecting organ-confined disease than PSA and PSAD, respectively. CONCLUSIONS Measuring PSA-ACT and ACTD may improve the preoperative evaluation of patients scheduled to undergo radical prostatectomy, because these factors better differentiate extraprostatic from organ-confined disease than PSA and PSAD.
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Affiliation(s)
- I Hara
- Department of Urology, Kobe University School of Medicine, Kobe, Japan
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Abstract
In order to evaluate two patterns of interrupted and non-interrupted sleep for the post-partum mothers from 9 to 12 weeks after delivery, we compared them with sleep patterns of non-pregnant women. Subjects were 10 primipara and 12 non-pregnant women. Their polysomnographic recordings were made using a Medilog recorder at home. In interrupted sleep, low sleep efficiency, decreased total sleep time, and a decreased percentage of stage 2 were significantly observed compared with non-pregnant women. Sleep parameters of non-interrupted sleep, except for increased percentage of stage 4, did not show any significant differences from non-pregnant women. Mothers' sleep fluctuated between interrupted sleep similar to the early post-partum sleep from 1 to 6 weeks and non-interrupted sleep with increased stage 4.
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Affiliation(s)
- K Nishihara
- Department of Psychophysiology, Tokyo Institute of Psychiatry, Tokyo, Japan.
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Akehi Y, Yoshimatsu H, Kurokawa M, Sakata T, Eto H, Ito S, Ono J. VLCD-induced weight loss improves heart rate variability in moderately obese Japanese. Exp Biol Med (Maywood) 2001; 226:440-5. [PMID: 11393172 DOI: 10.1177/153537020122600508] [Citation(s) in RCA: 23] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
To evaluate the effects of weight reduction on the autonomic nervous system in obese patients, we investigated heart rate variability (HRV) based on 24-hr ambulatory electrocardiogram (ECG) recordings before and after weight reduction. To aim for weight reduction, 16 obese patients were treated with the very-low-calorie conventional Japanese diet (VLCD-CJ) therapy combined with behavior therapy. Percent weight reduction was 17.8% +/- 1.5% (means +/- SEM), but mean blood pressure did not change significantly after VLCD-CJ therapy. The mean normal R-R interval (mNN) of the 24-hr ECG and all other five time-domain indices increased after weight reduction. Spectral analysis revealed that weight reduction increased the high frequency (HF) component, but decreased the ratio of low to high (LF/HF) components. Rate of change in mNN or HF correlated positively with reduction rate of body mass index, but not that in LF/HF. Analysis of daily fluctuations in each HRV parameter showed that significant improvement after weight loss occurred mainly during the nocturnal period, but an HF component was improved throughout the day and night periods. These findings indicate that functional impairment of the autonomic nervous system in obese subjects, particularly in the nocturnal period, is improved by effective weight reduction after VLCD-CJ therapy.
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Affiliation(s)
- Y Akehi
- Laboratory Medicine, School of Medicine, Fukuoka University, Japan
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18
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Hara M, Eto H, Kuboi T. Tissue printing for myrosinase activity in roots of turnip and Japanese radish and horseradish: a technique for localizing myrosinases. Plant Sci 2001; 160:425-431. [PMID: 11166428 DOI: 10.1016/s0168-9452(00)00400-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A method for analyzing the tissue distribution of myrosinase activity in Brassicaceous plants was developed. This technique is based on 'tissue printing' to visualize enzyme activity. The freshly-cut surface (transverse direction) of the root of three species, Japanese radish (Raphanus sativus), turnip (Brassica campestris) and Japanese horseradish (wasabi, Wasabia japonica), was pressed onto a polyvinylidene difluoride (PVDF) filter to immobilize the proteins onto the membrane. The sites of myrosinase activity on the membranes were visualized by the sinigrin-glucose oxidase-peroxidase system. Signals for myrosinase activity were observed in both the epidermis and vascular cambium of the root of the Japanese radish, turnip and wasabi. Measurement of myrosinase activity in protein extracts indicated that the level of myrosinase activity in the peeling, which consisted of the epidermis, cortex and vascular cambium, was much higher than that in the peeled root of the three species. These results support the image that myrosinase activity, obtained in tissue printing, corresponded well with the tissue distribution of myrosinase activity.
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Affiliation(s)
- M Hara
- Department of Environmental Science for Human Life, Faculty of Agriculture, Shizuoka University, 836 Ohya, 422-8529, Shizuoka, Japan
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19
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Eto H, Kaneko Y, Takeda S, Tokizawa M, Sato S, Yoshida K, Namiki S, Ogawa M, Maebashi K, Ishida K, Matsumoto M, Asaoka T. New antifungal 1,2,4-triazoles with difluoro(substituted sulfonyl)methyl moiety. Chem Pharm Bull (Tokyo) 2001; 49:173-82. [PMID: 11217105 DOI: 10.1248/cpb.49.173] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.5] [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: 11/22/2022]
Abstract
New 1,2,4-triazoles (2) having a difluoro(substituted sulfonyl)methyl moiety were designed and synthesized via alpha,alpha-difluoro-alpha-(substituted thio)acetophenones (3). Compounds (2) showed potent antifungal activities against C. albicans, C. krusei, A. flavus and A. fumigatus in vitro and against C. albicans in vivo for oral and i.v. administrations. Especially, (-)-2a, (-)-2b and (-)-2d showed potent antifungal activities.
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Affiliation(s)
- H Eto
- Central Research Labs., SS Pharmaceutical Co., Ltd., Narita, Chiba, Japan.
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20
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Ikeda Y, Biro S, Kamogawa Y, Yoshifuku S, Eto H, Orihara K, Kihara T, Tei C. Repeated Thermal Therapy Upregulates Arterial Endothelial Nitric Oxide Synthase Expression in Syrian Golden Hamsters. ACTA ACUST UNITED AC 2001; 65:434-8. [PMID: 11348049 DOI: 10.1253/jcj.65.434] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.5] [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: 11/09/2022]
Abstract
It has been previously reported that sauna therapy, a thermal therapy, improves the hemodynamics and clinical symptoms in patients with chronic heart failure and also improves endothelial function, which is impaired in such patients. The present study investigated whether the improvements observed with sauna therapy are through modulation of arterial endothelial nitric oxide synthase (eNOS) expression. Eight male Syrian golden hamsters underwent sauna therapy, using an experimental far infrared-ray dry sauna system, at 39 degrees C for 15 min followed by 30 degrees C for 20 min daily for 4 weeks. Control group hamsters were placed in the sauna system switched off at room temperature of 24 degrees C for 35 min. Immunohistochemistry found greater amounts of the immunoreactive products of eNOS in the endothelial cells of the aorta and carotid, femoral and coronary arteries in the sauna group than in the control group. Western blot analysis also revealed that 4-week sauna therapy significantly increased eNOS expression in aortas by 50% in 4 series of independent experiments with an identical protocol (p<0.01). In reverse transcription polymerase chain reaction assay, the eNOS mRNA in aortas was greater in the sauna group than in controls, with a peak at 1-week of sauna therapy (approximately 40-fold increase). In conclusion, repeated thermal therapy upregulates eNOS expression in arterial endothelium.
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Affiliation(s)
- Y Ikeda
- The First Department of Internal Medicine, Faculty of Medicine, Kagoshima University, Japan
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21
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Eto H, Yoon SS, Bode BP, Kamidono S, Makino K, Saya H, Nakamura H, Tanabe KK. Mapping and regulation of the tumor-associated epitope recognized by monoclonal antibody RS-11. J Biol Chem 2000; 275:27075-83. [PMID: 10801882 DOI: 10.1074/jbc.m908835199] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We have previously described a rat monoclonal antibody, RS-11, which recognizes a tumor-associated antigen common to several species. In the present study, we have cloned and characterized the antigen recognized by RS-11. We screened a phage expression library prepared from HeLa cDNA and identified a clone that reacts with RS-11. DNA sequence analysis revealed that this clone contains sequences of keratin 18 (nucleotides 568-1196). We constructed several glutathione S-transferase fusion proteins and synthetic peptides based on this DNA sequence analysis and examined their reactivity with RS-11 to accurately map the RS-11 epitope. We determined that the epitope resides within a region of seven amino acids on the alpha-helix 2B domain of keratin 18 in which two amino acids (Leu(366) and Lys(370)) are completely conserved among intermediate filaments as well as other keratin members that are immunoreactive with RS-11. These two residues are sequentially discontinuous but spatially adjacent. The RS-11 epitope is constitutively present in human primary cultured hepatocytes; however, its immunoreactivity with RS-11 is up-regulated by malignant transformation or stimulation with either epidermal growth factor or transforming growth factor alpha.
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Affiliation(s)
- H Eto
- Division of Surgical Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA
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22
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Takeda S, Kaneko Y, Eto H, Tokizawa M, Sato S, Yoshida K, Namiki S, Ogawa M. alpha,alpha-gem-Difluorination of alpha-(alkylthio)acetophenone derivatives with N-fluoropyridinium salts. Chem Pharm Bull (Tokyo) 2000; 48:1097-100. [PMID: 10923850 DOI: 10.1248/cpb.48.1097] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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: 11/22/2022]
Abstract
The alpha,alpha-gem-difluorination of 2',4'-difluoro-alpha-(methylthio)acetophenone (1a) with N-fluoropyridinium salts gave 2',4',alpha,alpha-tetrafluoro-alpha-(methylthio)acetophenone (3a). This reaction was accelerated by the addition of zinc chloride, zinc bromide or anhydrous iron(III) chloride, and higher yields than the reaction without additives were obtained. The gem-difluorination reaction using FP-T300 in the presence of zinc bromide was applicable to other alpha-(alkylthio)acetophenone derivatives (1).
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Affiliation(s)
- S Takeda
- Central Research Laboratory, SS Pharmaceuticals Co, Ltd, Narita, Chiba, Japan.
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23
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Abstract
Two cases of non-familial, late onset (50 and 62-years-old) hyalinosis cutis et mucosae were studied and compared with classical early onset cases. Late onset cases showed essentially the same histological and ultrastructural features described for early onset cases. The late onset variety should be distinguished from other diseases; they resemble systemic amyloidosis and sometimes the adult form of colloid milium.
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Affiliation(s)
- K Hashimoto
- Department of Dermatology & Syphilogy, Wayne State University School of Medicine, Detroit, MI 48201, USA
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24
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Abstract
New 1,2,4-triazoles (1) having a difluoro(heteroaryl)methyl moiety were designed and synthesized via 1-aryl-2,2-difluoro-2-(heteroaryl)ethanones (2), which were prepared by two routes starting from the reaction of ethyl 2,2-difluoro(heteroaryl)acetate with phenyllithiums (Route A) and from the reaction of chlorodifluoro(heteroaryl)methane with benzaldehydes (Route B). The compounds 1 except for 1g show antifungal activities against yeasts and filamentous fungi in vitro, especially (+)-1f have equal or superior activities compared to those of itraconazole.
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Affiliation(s)
- H Eto
- Central Research Labs, SS Pharmaceutical Co, Ltd, Narita, Chiba, Japan.
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25
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Abstract
The relationship between a post-partum mother's wakefulness at night and her infant's circadian sleep-wake rhythm was examined. The subjects were seven primipara and their infants. Actigraphic recordings for the mothers and their infants were made over three to five continuous days during Weeks 3, 6, 9 and 12. A 24-h peak of autocorrelograms of the infants' movements appeared in two cases at Week 6, in six cases at Week 9, and in seven cases at Week 12. The mothers' night-time movements significantly decreased from Week 3 to Week 12. Mothers' wakefulness during night sleep in the post-partum period is related to their infants' obtaining circadian sleep-wake rhythm.
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Affiliation(s)
- K Nishihara
- Department of Psychophysiology, Tokyo Institute of Psychiatry, Japan.
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26
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Abstract
CD44 is a family of cell-surface adhesion molecules which exist in several isoforms arising from mRNA alternative. Malignant transformation of colonic mucosa is associated with alterations in CD44 expression, which result in up-regulation of high-molecular-weight CD44 isoforms and down-regulation of CD44s. We have demonstrated that stable transfection of CD44s into colon-carcinoma cell lines reduces their tumorigenicity. To understand the influence of CD44s expression on the metastatic potential of human colon carcinomas, we measured the ability of several different CD44s-transfected colon carcinomas to establish experimental liver metastases following splenic inoculation in mice. We observed that introduction of CD44s into 2 different human colon carcinoma cell lines, HT29 and KM12C6, resulted in reduced growth of liver metastases by as much as 75%. To explore the relationship between hyaluronate adhesion and metastasis, we transfected HT29 cells with cDNA encoding a mutant CD44s that does not bind to hyaluronate. HT29 transfectants expressing this mutant CD44s demonstrate an 84% reduction in growth of liver metastases, despite minimal binding to hyaluronate by the mutant CD44s. In concert, these results indicate that CD44s down-regulation, which occurs with malignant transformation of colonic mucosa, is associated with enhanced growth of experimental liver metastases. Consequently, the functional consequences of CD44s down-regulation in colon carcinomas may be just as significant as the consequences of up-regulation of other CD44 isoforms.
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Affiliation(s)
- S H Choi
- Division of Surgical Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
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Yoon SS, Eto H, Lin CM, Nakamura H, Pawlik TM, Song SU, Tanabe KK. Mouse endostatin inhibits the formation of lung and liver metastases. Cancer Res 1999; 59:6251-6. [PMID: 10626820] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Angiogenesis is required for tumor formation. Several studies have demonstrated that tumor angiogenesis is regulated by a balance between proangiogenesis and antiangiogenesis factors and that this balance varies in different organ environments. To investigate whether expression of an angiogenesis inhibitor by cancer cells could alter this balance and prevent tumor formation in different organ environments, we engineered stable transfectants from RenCa mouse renal carcinoma cells and SW620 human colon carcinoma cells to constitutively secrete a mouse endostatin protein with c-myc and polyhistidine (His) tags. Production and secretion of the endostatin-c-myc-His fusion protein by endostatin-transfected cells were confirmed by immunofluorescence staining and Western blot analysis. The endostatin transfectants and control transfectants, stably transfected with a control plasmid, had similar in vitro growth rates compared with their parental cell lines. Conditioned medium from endostatin-transfected cells inhibited human umbilical vein endothelial cell proliferation by 36-51% compared with conditioned medium from control cells. After inoculation into mice, flank tumors from endostatin-transfected cells were 73-91% smaller than flank tumors from control cells after 3 weeks. Inoculation of a cell mixture containing 25% endostatin-transfected cells and 75% control cells resulted in inhibition of flank tumor formation as effective as after inoculation of 100% endostatin-transfected cells. Formation of lung metastases by RenCa endostatin-transfected cells and formation of liver metastases by SW620 endostatin-transfected cells were dramatically inhibited compared with formation of metastases by control cells. These findings demonstrate that endostatin can inhibit tumor formation in different organ environments and that gene delivery of endostatin into even a minority of tumor cells may be an effective strategy to prevent progression of micrometastases to macroscopic disease.
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Affiliation(s)
- S S Yoon
- Department of Surgery, Massachusetts General Hospital, and Harvard Medical School, Boston 02114, USA
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Ka S, Eto H, Arakawa S, Kamidono S. [Development and characterization of a monoclonal antibody which recognizes a new prostate-organ specific antigen]. Nihon Hinyokika Gakkai Zasshi 1999; 90:790-7. [PMID: 10517088 DOI: 10.5980/jpnjurol1989.90.790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
PURPOSE Development and characterization of monoclonal antibodies which recognizes a new prostate-organ specific antigen. METHOD For development of monoclonal antibodies, hybrid cells were prepared by fusion of spleen cells of BALB/c mice immunized with the homogenates of surgically resected prostatic tissue and P 3 x Ag 8 U 1 (P 3 U 1) murine myeloma cells. Supernatants of hybrid clones were primarily screened using an ELISA on human prostatic cancer cell line PC-3 and human bladder cancer cell line T-24. In the secondary screening, they were tested on normal tissues by immunohistochemical staining. To characterize the antigens, biochemical analyses were performed using seminal plasma as an antigen by western blotting and gel filtration, and the reactivity of antibodies were compared with that of antibodies against prostatic acid phosphatase (PAP), prostate-specific antigen (PSA) and gamma-seminoprotein (gamma-Sm). RESULTS A monoclonal antibody termed KP-9 was obtained and it only reacted with PC-3 and prostate tissues, but did not react with other cell lines and normal tissues. Immunohistochemical staining of prostate tissue revealed that KP-9 stained grandular epithelium and grandular exudate of normal and malignant prostatic tissues, and especially, strongly stained the apical site of grandular epithelium. Western blotting and gel filtration of seminal plasma suggested that the molecular weight of the KP-9 antigen was more than 300,000 and was different from PAP, PSA and gamma-Sm. CONCLUSION We have developed a monoclonal antibody, KP-9 which specifically reacts with prostatic cancer as well as benign prostatic tissues. The antigen recognized by KP-9 appeared to be a new prostate-organ specific antigen and may be a useful marker for prostatic cancer such as PAP, PSA and gamma-Sm.
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Affiliation(s)
- S Ka
- Department of Urology, Kobe University School of Medicine
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Eto H. The interest of scientific communities in sea-related research topics. Scientometrics 1999. [DOI: 10.1007/bf02458431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Eto H, Koga T, Sakamoto A, Kawazoe N, Sadoshima S, Onoyama K, Kato S. [Case of Cushing's syndrome due to bilateral adrenal adenomas with one presenting as melanotic adenoma]. Nihon Naika Gakkai Zasshi 1999; 88:893-4. [PMID: 10375908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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32
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Kayagaki N, Yamaguchi N, Nakayama M, Eto H, Okumura K, Yagita H. Type I interferons (IFNs) regulate tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) expression on human T cells: A novel mechanism for the antitumor effects of type I IFNs. J Exp Med 1999; 189:1451-60. [PMID: 10224285 PMCID: PMC2193058 DOI: 10.1084/jem.189.9.1451] [Citation(s) in RCA: 353] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is a proapoptotic member of the TNF family of type II membrane proteins, which constitutes one component of T cell cytotoxicity. In this study, we investigated the expression and function of TRAIL in human peripheral blood T (PBT) cells. Although freshly isolated PBT cells did not express a detectable level of TRAIL on their surface, a remarkable TRAIL expression was rapidly induced on the surface of both CD4(+) and CD8(+) PBT cells upon stimulation with anti-CD3 monoclonal antibody and type I interferons (IFNs). This enhancement of TRAIL expression was a unique feature of type I IFNs (IFN-alpha and IFN-beta), and neither type II IFN (IFN-gamma) nor various other cytokines enhanced TRAIL expression on anti-CD3-stimulated PBT cells. Type I IFNs have been used for clinical treatment of renal cell carcinomas (RCCs), and we found that most RCC cell lines were susceptible to TRAIL-induced apoptosis. Type I IFNs substantially augmented cytotoxic activity of anti-CD3-stimulated PBT cells against RCC cell lines in a TRAIL-dependent manner. These results indicate a unique feature of type I IFNs to regulate TRAIL-mediated T cell cytotoxicity, which may be involved in the antitumor effects of type I IFNs against various tumors.
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Affiliation(s)
- N Kayagaki
- Department of Immunology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo 113-8421, Japan
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Abstract
CD44 is a family of cell-surface-adhesion proteins that are thought to play an important role in cancer invasion and metastasis. However, the specific mechanisms by which CD44 expression modulates invasion or metastasis are not well understood. In the current study, we have demonstrated that treatment of human melanoma cells with a CD44 MAb, F10-44-2, induces up-regulation of matrix metalloproteinase-2 (MMP-2) protein and mRNA. Moreover, treatment of melanoma cells with MAb F10-44-2 enhances their migration through gelatin-coated membranes and invasion through reconstituted basement membranes. Treatment of melanoma cells with several known CD44 ligands, including hyaluronate, extracellular-matrix proteins, and osteopontin, did not induce MMP-2 production. CD44 binding by F10-44-2 MAb results in induction of MMP-2 expression, which is associated with enhanced cell migration and invasion. These findings have several implications for investigations into tumor metastasis, development, and lymphocyte function.
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Affiliation(s)
- K Takahashi
- Department of Surgery, Massachusetts General Hospital, Boston 02114, USA
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Gohji K, Hara I, Gotoh A, Eto H, Miyake H, Sugiyama T, Okada H, Arakawa S, Kamidono S. Multifocal renal cell carcinoma in Japanese patients with tumors with maximal diameters of 50 mm. or less. J Urol 1998; 159:1144-7. [PMID: 9507818] [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: 02/06/2023]
Abstract
PURPOSE We determined the risk of local recurrence in 64 Japanese patients a median of 69 years old with renal cell carcinoma who were possible candidates for nephron sparing surgery and who underwent radical nephrectomy. MATERIALS AND METHODS A total of 64 kidneys in which tumors 50 mm. or less were resected were prospectively examined pathologically in 3 mm. sections. The incidence of satellite tumors and the relationship between the pathological findings of the primary and satellite tumors were evaluated. RESULTS Satellite tumors were identified in 10 of the 64 kidneys (15.6%), a rate similar to that reported in the United States. The correlation of histological findings between primary and satellite tumors was 70% for tumor grade. Satellite tumor grade was less than that of the primary lesion in 3 cases. In 60% of the specimens with multifocal renal cancer satellite tumors were within 10 mm. of the margin of the primary tumor. At this distance, if partial nephrectomy had been performed, the satellite lesions would have been missed in 4 of these 10 patients (40%). Of the 10 kidneys with satellite renal tumors 8 (80%) had vascular invasion of the primary tumor. Multiple logistic regression analysis demonstrated that vascular invasion was a significant predictor of multifocality of renal cell carcinoma. CONCLUSIONS Our results suggest that vascular invasion is a risk factor for multifocality in Japanese patients with renal cell carcinoma. Therefore, careful and long-term followup is necessary in patients with renal cell carcinoma who have undergone nephron sparing surgery, especially those with vascular invasion of the primary tumor.
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Affiliation(s)
- K Gohji
- Department of Urology, Kobe University School of Medicine, Japan
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Abstract
We describe a case of Sjögren's syndrome who repeatedly developed annular erythema on her extremities. Her anti-nuclear antibody, anti-SSA/Ro antibody, and anti-SSB/La antibody were all negative. Characteristics of the annular erythema included a tendency to appear on the extremities especially in summer, spontaneous regression after 1-2 weeks, and residual slight pigmentation. The histological findings revealed dermal perivascular lymphocytic infiltration admixed with some neutrophils. Slight exsudative changes were found in the upper dermis. There were no epidermal changes. This case suggests the existence of annular erythema which may not be related to the anti-SSA/Ro or anti-SSB/La antibody. Unknown factors other than those antibodies may be involved in the pathogenesis of the annular erythema.
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Affiliation(s)
- Y Yamagami
- Department of Dermatology, National Yokohama Hospital, Japan
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36
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Miyake H, Hanada N, Nakamura H, Kagawa S, Fujiwara T, Hara I, Eto H, Gohji K, Arakawa S, Kamidono S, Saya H. Overexpression of Bcl-2 in bladder cancer cells inhibits apoptosis induced by cisplatin and adenoviral-mediated p53 gene transfer. Oncogene 1998; 16:933-43. [PMID: 9484785 DOI: 10.1038/sj.onc.1201602] [Citation(s) in RCA: 93] [Impact Index Per Article: 3.6] [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: 02/06/2023]
Abstract
To investigate the effects of the expression of Bcl-2 protein in bladder cancer on the apoptosis induced by cisplatin or adenoviral-mediated p53 gene (Ad5CMV-p53) transfer, we transfected the bcl-2 gene into KoTCC-1, a human bladder cancer cell line that does not express the Bcl-2 protein. The Bcl-2-transfected KoTCC-1 (KoTCC-1/B) exhibited significantly higher resistance to both cisplatin and Ad5CMV-p53 transfer than did either the parental KoTCC-1 (KoTCC-1/P) or the vector-only transfected cell line (KoTCC-1/C). The flow cytometric analysis of the propidium iodide-stained nuclei and DNA fragmentation analysis after cisplatin or Ad5CMV-p53 treatment revealed DNA degradation in both KoTCC-1/P and KoTCC-1/C, whereas KoTCC1/B showed a marked inhibition of DNA degradation. Following the treatment with cisplatin or Ad5CMV-p53, the accumulation of p53 protein was highly detectable for a long period in KoTCC-1/B compared to that in KoTTC-1/P and KoTCC-1/C. Furthermore, the cisplatin and Ad5CMV-p53 treatments each reduced the volume of the subcutaneous tumors established in nude mice formed by KoTCC-1/P or KoTCC-1/C; in contrast, their reductive effects on the tumors formed by KoTCC-1/B were significantly suppressed. The intraperitoneal tumor cell implantation model revealed that the prognoses of mice injected with KoTCC-1/B were significantly inferior to those of the mice injected with either KoTCC-1/P or KoTCC-1/C after treatment with cisplatin or Ad5CMV-p53. These findings suggest that the expression of Bcl-2 in bladder cancer cells interferes with the therapeutic effects of cisplatin and Ad5CMV-p53 through the inhibition of the apoptotic pathway.
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Affiliation(s)
- H Miyake
- Department of Tumor Genetics and Biology, Kumamoto University School of Medicine, Honjo, Japan
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Miyake H, Yoshimura K, Hara I, Eto H, Arakawa S, Kamidono S. Basic fibroblast growth factor regulates matrix metalloproteinases production and in vitro invasiveness in human bladder cancer cell lines. J Urol 1997; 157:2351-5. [PMID: 9146669] [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: 02/04/2023]
Abstract
PURPOSE This study was designed to investigate the effect of endogenous basic fibroblast growth factor (FGF-2) on matrix metalloproteinases (MMPs) production and in vitro invasive potential of human bladder cancer cell lines. MATERIALS AND METHODS The human bladder cancer cell lines, HT1376 and KoTCC-1, were used in this study. The mRNA for FGF receptor has been shown to be expressed in both cell lines; the mRNA for FGF-2 is expressed in only KoTCC-1. The effects of FGF-2 expression on HT1376 by gene transfection and those of FGF-2 antisense oligonucleotides treatment on KoTCC-1 were analyzed by zymography and in vitro tumor cell invasion assay. RESULTS The introduction of human FGF-2 gene into HT1376 cells markedly enhanced both the MMP-2 and MMP-9 production, and the in vitro invasive potential was also increased. In contrast, the exposure of KoTCC-1 cells to FGF-2 specific antisense oligonucleotides decreased the MMP-2 production and in vitro invasive potential, but the exposure to FGF-2 sense oligonucleotides did not. CONCLUSIONS These findings suggest that FGF-2 plays an important role in the invasive process of human bladder cancer in part through the regulation of MMPs production.
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Affiliation(s)
- H Miyake
- Department of Urology, Kobe University School of Medicine, Japan
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38
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Okada H, Eto H, Hara I, Fujisawa M, Kawabata G, Yamanaka N, Arakawa S, Kamidono S. Percutaneous treatment of transitional cell carcinoma of the upper urinary tract. Int J Urol 1997; 4:130-3. [PMID: 9179684 DOI: 10.1111/j.1442-2042.1997.tb00158.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND We evaluated the long-term effect of percutaneous resection in 2 Japanese patients with transitional cell carcinoma of the renal pelvis, and reviewed the medical literature on similar patients, to determine the appropriate indications for percutaneous treatment of transitional cell carcinoma in the upper urinary tract. RESULTS Indications for endoscopic resection in the 2 patients were renal insufficiency and unsuitability for major open surgery. The patients had no recurrence during follow-up. Seven previous reports described percutaneous resection of upper urinary tract transitional cell carcinoma in 82 patients. Although 72.6% of the patients were successfully treated by percutaneous resection, half of the patients with grade 3 carcinoma developed recurrence. CONCLUSION These results, together with those of the 7 published reports, suggest that percutaneous resection should be limited to selected patients with low-grade transitional cell carcinoma.
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Affiliation(s)
- H Okada
- Department of Urology, Kobe University School of Medicine, Japan
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39
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Rahman SM, Eto H, Morshed SA, Itakura H. Giant cell pneumonia: light microscopy, immunohistochemical, and ultrastructural study of an autopsy case. Ultrastruct Pathol 1996; 20:585-91. [PMID: 8940766 DOI: 10.3109/01913129609016363] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
An autopsy case of measles giant cell pneumonia with intranuclear inclusion bodies is reported. This case of giant cell pneumonia was studied by light microscopy and immunohistochemistry using monoclonal and polyclonal antibody to measles and by electron microscopy (EM). Light microscopic examination showed multinucleated epithelial giant cells with intranuclear and intracytoplasmic inclusions. The giant cells contained prominent, sharply marginated, eosinophilic intranuclear inclusions typical of classic measles pneumonia. Presence of measles antigen was confirmed using both monoclonal and polyclonal antibodies by peroxidase antiperoxidase method. Monoclonal antibody stained positively for intracytoplasmic and intranuclear inclusions. Electron microscopic examination of lung tissue showed intranuclear inclusions of filamentous or worm like nucleocapsid materials in multinucleated epithelial giant cells. The results suggest that this is a case of measles giant cell pneumonia and the intranuclear inclusion bodies are measles viral particles.
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Affiliation(s)
- S M Rahman
- Department of Pathology, Institute of Tropical Medicine, Nagasaki University, Japan
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40
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Miyake H, Hara I, Fujisawa M, Eto H, Okada H, Arakawa S, Kamidono S. Comparison of hormonal therapy and chemohormonal therapy in patients with newly diagnosed clinical stage D prostatic cancer. Int J Urol 1996; 3:472-7. [PMID: 9170576 DOI: 10.1111/j.1442-2042.1996.tb00579.x] [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: 02/04/2023]
Abstract
BACKGROUND In order to examine the usefulness of chemohormonal therapy, we conducted a multicentered randomized trial comparing hormonal therapy, using a luteinizing hormone-releasing hormone (LH-RH) agonist, with chemohormonal therapy, hormonal therapy plus cyclophosphamide (CPM), in patients with newly diagnosed clinical stage D prostatic cancer. METHODS Between January 1991 and March 1995, 41 evaluable patients with stage D prostatic cancer were randomized into 2 groups: group A (hormonal therapy alone), goserelin acetate depot 3.6 mg subcutaneously every 4 weeks: group B (chemohormonal therapy), goserelin acetate depot 3.6 mg subcutaneously and CPM 1000 mg/m2 intravenously every 4 weeks. The responses to the therapies were evaluated based on the criteria of The Japanese Urological Association. RESULTS There were no significant differences between the 2 groups with regard to objective and subjective response rates. No advantage in chemohormonal therapy was observed in the survival rate and progression-free survival rate. However, the survival rate and progression-free survival rate of responders were significantly higher than those of nonresponders in both groups. When the results were categorized by histologic grade patients with poorly-differentiated adenocarcinoma had significantly higher response rates, survival rates, and disease-progression-free survival rates in Group B compared to similar patients in Group A. CONCLUSIONS We conclude that chemohormonal therapy does not definitely improve the clinical response and prognosis of patients with stage D prostatic cancer; however, for patients with poorly-differentiated adenocarcinoma, chemohormonal therapy is a useful treatment.
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Affiliation(s)
- H Miyake
- Department of Urology, Kobe University School of Medicine, Japan
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41
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Arakawa S, Hara I, Miyake H, Taguchi I, Yamada Y, Gotoh A, Ueno K, Matsui T, Fujisawa M, Eto H, Gohji K, Okada H, Kamidono S. [Radical prostatectomy for localized prostate cancer]. Hinyokika Kiyo 1996; 42:811-5. [PMID: 8951480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We studied 81 patients who underwent radical prostatectomy for prostate cancer. Ten, 57 and 14 patients were clinically diagnosed with stage T1, T2 and T3, respectively. Pelvic lymph node dissection was performed prior to prostatectomy in all cases. The neurovascular bundle was preserved in 21 patients. Compared with pathological stage, the accuracy rate of clinical staging in T1, T2 and T3 was 40, 46 and 64% respectively. Approximately half of the patients clinically diagnosed with stage T2 were pT3. The positive rate of lymph node in pT2 and pT3 was 3.3 and 37% respectively, showing a marked difference between these two pathological stages. The 3-year non-recurrence rates were 89% in patients with pT2 and 79% in pT3. In the well differentiated carcinoma group, no patients had recurrence for up to 3 years. All of the patients with infiltration (INF) gamma showed recurrence within 3 years. Fifty-five patients had no problem on urination post-operatively, while the other 23 patients had a mild or moderate incontinence and the remaining 3 patients had a small urine stream. Regarding erectile potency, 4 out of 18 evaluable patients were potent.
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Affiliation(s)
- S Arakawa
- Department of Urology, Kobe University School of Medicine
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42
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Eto H, Kamidigo NO, Murakami-Mori K, Nakamura S, Toriyama K, Itakura H. Short report: herpes-like DNA sequences in African-endemic and acquired immunodeficiency syndrome-associated Kaposi's sarcoma. Am J Trop Med Hyg 1996; 55:405-6. [PMID: 8916796 DOI: 10.4269/ajtmh.1996.55.405] [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: 02/03/2023] Open
Abstract
Recently, the unique nucleic acid closely related to the herpes-like sequences has been found in acquired immunodeficiency syndrome (AIDS)-associated Kaposi's sarcoma (KS). We have confirmed the presence of herpes-like DNA sequences in six cases of AIDS-associated KS and three of the nine cases of African-endemic KS in adults, but not in eight cases of KS in children from the same area. These sequences were seen in a histologically early stage of KS. Our results suggest that herpes-like DNA sequences may play an important role in the pathogenesis of AIDS-associated KS.
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Affiliation(s)
- H Eto
- Department of Pathology, Nagasaki University, Japan
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43
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Obata H, Biro S, Arima N, Kaieda H, Kihara T, Eto H, Miyata M, Tanaka H. NF-kappa B is induced in the nuclei of cultured rat aortic smooth muscle cells by stimulation of various growth factors. Biochem Biophys Res Commun 1996; 224:27-32. [PMID: 8694825 DOI: 10.1006/bbrc.1996.0979] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.5] [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: 02/01/2023]
Abstract
We investigated whether induction of transcription factor NF-kappa B is involved in the proliferation of cultured rat aortic smooth muscle cell using electrophoretic mobility shift assay and immunocytochemistry. NF-kappa B was induced in the nucleus in a dose-dependent manner when the smooth muscle cells were stimulated by various growth factors such as PDGF-BB, bFGF, EGF and IGF-1, but not growth inhibitors such as TGF-beta and IFN-gamma. Among growth factors, PDGF-BB and bFGF, more potent growth stimulators, induced higher kappa B binding activity than EGF or IGF-1. These evidences were also supported by the results obtained with immunocytochemistry. Immunocytochemistry also showed that the induced NF-kappa B contained p50 and p65. These results suggest that NF-kappa B induction may be involved in the proliferation of vascular smooth muscle cell.
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Affiliation(s)
- H Obata
- First Department of Internal Medicine, Faculty of Medicine, Kagoshima University, Japan
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44
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Abstract
We introduced the interleukin-2 (IL-2) gene into mouse renal cell carcinoma (RenCa) in order to examine the mechanism of tumor rejection. IL-2 gene-transfected RenCa (RenCa/IL-2Hi) exhibited marked retardation of tumor growth when implanted in a syngeneic host. Growth retardation of RenCa/IL-2Hi was also observed in athymic nude mice even after depletion of natural killer (NK) cells by treatment with anti-asialo GM1 antibody. Histological analysis of RenCa/IL-2Hi tumors disclosed non-specific inflammatory changes in syngeneic hosts. Co-injection of Bacillus Calmette Guerin with RenCa/IL-2Hi considerably enhanced the anti-tumor effects. Taken together, these findings strongly suggest that in situ IL-2 production leads to tumor rejection through non-specific inflammatory responses without participation of T cells and NK cells. On the other hand, the syngeneic mice that had rejected RenCa/IL-2Hi acquired immunity against parental RenCa, suggesting possible participation of memory T cells in the second rejection of the tumor.
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Affiliation(s)
- I Hara
- Department of Urology, Kobe University School of Medicine
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45
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Tahara M, Nomura S, Takahashi M, Takagi H, Hashimoto M, Eto H, Kamidono S. [In vitro direct antiproliferative activity and in vivo antitumor activity of bropirimine against bladder cancer]. Gan To Kagaku Ryoho 1996; 23:1039-44. [PMID: 8687218] [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: 02/01/2023]
Abstract
Bropirimine is an antitumor agent currently used in clinical trials on bladder cancer. It is known to induce IFN, to activate NK cells and to inhibit the growth of tumor cells. In this study, we examined the in vitro and in vivo efficacy of bropirimine on human and murine bladder cancer. Bropirimine showed in vitro antiproliferative activity on the human bladder cancer cell lines, T 24 and KoTCC-1. This activity was not: affected by the neutralizing antibodies against IFN-alpha, TNF-alpha or IL-1 beta, indicating it is the direct activity of bropirimine without involvement of cytokine production by tumor cells. Bropirimine was active at the concentrations comparable to those in serum or urine attained in clinical trials, which suggests that this direct antiproliferative activity is one of the important antitumor mechanisms of bropirimine. In in vivo experiments, bropirimine reduced the growth of transplanted murine MBT-2 and human KoTCC-1 bladder cancers by oral administration every 4 days starting on day 1, but did not show efficacy when the drug treatment was started on day 8. The antitumor activity of bropirimine was dependent on the timing for drug treatment initiation.
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Affiliation(s)
- M Tahara
- Tsukuba Research Laboratories, Upjohn Pharmaceuticals Limited
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46
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Miyake H, Hara I, Yoshimura K, Eto H, Arakawa S, Wada S, Chihara K, Kamidono S. Introduction of basic fibroblast growth factor gene into mouse renal cell carcinoma cell line enhances its metastatic potential. Cancer Res 1996; 56:2440-5. [PMID: 8625325] [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: 01/31/2023]
Abstract
To clarify the role of basic fibroblast growth factor (FGF-2) in the malignant progression of renal cell carcinoma, we transfected the FGF-2 gene, which lacks the typical signal sequence, into RenCa, a mouse renal cell carcinoma cell line that does not express FGF-2 mRNA. In an in vitro tumor cell invasion assay, the FGF-2-transfected cell lines (RenCa/F) exhibited 3- to 4-fold higher invasive potential than either the parental RenCa (RenCa/P) or the vector-only transfected cell line (RenCa/C). Zymography showed a marked increase in matrix metalloproteinase 2 (MMP-2) production in the culture supernatants of RenCa/F. Furthermore, when injected i.v. or into the renal subcapsule in syngeneic mice, RenCa/F formed more than 10 times as many metastatic nodules in the lung as did RenCa/P and RenCa/C. Metastases to the liver and mesenteric lymph nodes were observed only after the injection of RenCa/F into the renal subcapsule. In contrast, there was no significant difference in either cell proliferation in vitro or tumor growth in vivo among RenCa sublines. These results suggest that if it is overexpressed, endogenous native FGF-2 plays an important role in the invasion and metastasis of renal cell carcinoma, probably through the production of MMP-2.
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Affiliation(s)
- H Miyake
- Department of Urology, Kobe University School of Medicine, Japan
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47
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Yoshimura K, Eto H, Miyake H, Hara I, Arakawa S, Kamidono S. Messenger ribonucleic acids for fibroblast growth factors and their receptor in bladder and renal cell carcinoma cell lines. Cancer Lett 1996; 103:91-7. [PMID: 8616814 DOI: 10.1016/0304-3835(96)04198-5] [Citation(s) in RCA: 20] [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: 01/31/2023]
Abstract
FGF-like growth factors have been detected in the urine of patients with bladder or renal cell carcinoma. FGF-1-like and FGF-2-like proteins have been detected in the urine of patients with bladder carcinoma. However, the expression of FGFs and their receptor in bladder and renal cell carcinoma cells remains limited. We measured the mRNA levels of FGFs and their receptor in these carcinoma cell lines by means of RT-PCR. We detected FGF-8 mRNA expression in murine cell lines of bladder and renal cell carcinomas but not in those of the normal bladder and kidney. Furthermore, FGF-8 mRNA expression was detected in all human bladder and renal cell carcinoma cell lines tested. We also frequently detected FGF-1, FGF-2 and FGF-5 mRNA expression in human bladder and renal cell carcinoma cell lines. These results indicate that FGF-8 is also candidate for marker of these types of carcinoma as well as FGF-1 and FGF-2.
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Affiliation(s)
- K Yoshimura
- Department of Urology, Kobe University School of Medicine, Japan
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48
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Abstract
To prevent recurrence of cerebral infarction (CI), the efficacy of antiplatelet therapy, when used in combination with a calcium antagonist, was examined. The study subjects were 57 chronic CI patients (40 men, 17 women; mean age, 68.5 years) who experienced either CI or its recurrence more than 3 months before the start of the study. They were randomly allocated into one of the following four groups for the 8-week study; group A--ticlopidine hydrochloride 200 mg once daily and nicardipine hydrochloride 20 mg three times daily (TID); group B--ticlopidine hydrochloride 200 mg once daily; group C--aspirin 81 mg once daily and nicardipine hydrochloride 20 mg TID; or group D--aspirin 81 mg once daily. Platelet aggregation was measured before treatment and 4 and 8 weeks after the initiation of each therapy by using adenosine diphosphate (ADP) (2 microM and 0.5 microM) and collagen (2 micrograms/mL), and evaluated in terms of percent maximum platelet aggregation. Results showed significant suppression of 2.0 microM ADP platelet aggregation in groups A, B, and C. At 0.5-microM ADP, only groups A and B showed significant platelet aggregation suppression. All groups showed significant suppression of collagen platelet aggregation. In comparing single therapy with combination therapy, groups A and B were not significantly different from one another after 4 or 8 weeks in 2-microM ADP or collagen platelet aggregation suppression. In contrast, group C had significantly greater suppression of both 2-microM ADP and collagen aggregations compared with group D. In conclusion, nicardipine hydrochloride administration with aspirin may be a useful alternative therapy for the prevention of CI recurrence.
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Affiliation(s)
- H Nomura
- Department of Internal Medicine, Shin-Kokura Hospital, Kitakyushu, Japan
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49
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Makata AM, Toriyama K, Kamidigo NO, Eto H, Itakura H. The pattern of pediatric solid malignant tumors in western Kenya, east Africa, 1979-1994: an analysis based on histopathologic study. Am J Trop Med Hyg 1996; 54:343-7. [PMID: 8615444 DOI: 10.4269/ajtmh.1996.54.343] [Citation(s) in RCA: 29] [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] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
This study analyzed histopathologic specimens of 600 pediatric solid malignant tumors seen during the period 1979-1994 at the histopathology laboratories of the Rift Valley Provincial General Hospital in Nakuru, the Nyanza Provincial General Hospital in Kisumu, and the Uasin Gishu Hospital in Eldoret in western Kenya. The crude incidence rate of each malignancy per 100,000 children per year was calculated. The patterns of malignancies were examined with a focus on tumor incidence, age, sex, geographic, and ethnic distribution to relate the tumors to putative environmental and genetic causative factors. The six common tumors were Burkitt's lymphoma (33.5%), non-Hodgkin's lymphoma (21.8%), retinoblastoma (11.5%), Kaposi's sarcoma (6.1%), nephroblastoma (4.5%), and Hodgkin's disease (4.1%). Significantly high crude incidence rates for lymphomas and Kaposi's sarcoma showed a characteristic ethnogeographic distribution. The majority of the tumors were found concentrated around Lake Victoria and showed decreasing occurrence as one moved towards the semi-arid and highland areas. We concluded that environmental factors seem to play a major role in childhood tumors in western Kenya.
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Affiliation(s)
- A M Makata
- Department of Pathology, Nagasaki University, Japan
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50
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Abstract
BACKGROUND Ectopic production of immunoreactive hCG/hCG beta (IR-hCG beta) by bladder tansitional cell carcinoma cell lines was investigated in vitro and in vivo. METHODS As an in vitro study, IR-hCG beta in culture media from 2 bladder transitional cell carcinoma cell lines (KoTCC-1 and HT-1197) was analyzed by three kinds of enzyme immunoassays (EIA) which were specific for intact hCG, free hCG beta and beta-core fragment (beta-CF). As an in vivo study, distribution of IR-hCG beta was analyzed in tumor tissues, sera, and urine of the nude mice and the nude rat transplanted with KoTCC-1 cell line. RESULTS Both of the cell lines were determined to secrete IR-hCG beta into the media, which consisted principally of free hCG beta. Intact hCG and beta-CF were scarecely detected in the media. Immunohistochemical study revealed the localization of IR-hCG beta in transitional cell carcinoma cells of the transplanted tumor. Although a large amount of IR-hCG beta could be detected in both of the serum and urine from the animals, there were quantitative and qualitative differences between serum and urinary IR-hCG beta. Quantitatively, the concentrations of IR-hCG beta in the urine were consistently much higher than those in the serum. Qualitatively, free hCG beta was exclusively detected in the serum whereas a large amount of beta-CF, in addition to free hCG beta, were found in the urine. Intact hCG could not be detected in both serum and urine. These distributions of IR-hCG beta in the animals bearing tumors were completely analogous to those in patients with bladder carcinoma. CONCLUSION The present results suggested that ectopic production of IR-hCG beta by bladder carcinoma is not rare phenomenon and it is clinically useful as a tumor marker when beta-CF is measured in the urine.
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MESH Headings
- Animals
- Biomarkers, Tumor/urine
- Carcinoma, Transitional Cell/metabolism
- Chorionic Gonadotropin, beta Subunit, Human/biosynthesis
- Chorionic Gonadotropin, beta Subunit, Human/urine
- Hormones, Ectopic/biosynthesis
- Hormones, Ectopic/urine
- Humans
- Male
- Mice
- Mice, Nude
- Rats
- Tumor Cells, Cultured
- Urinary Bladder Neoplasms/diagnosis
- Urinary Bladder Neoplasms/metabolism
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Affiliation(s)
- K Morisue
- Department of Urology, Shinko Hospital, Japan
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