1
|
Iijima Y, Miwa A, Shimada K, Horita S, Kamiko Y, Ito Y, Sasamoto K, Nakahara T, Koizumi T, Ochiai N. Superior high-efficiency and high-throughput volatile flavor extraction of Japanese fermented seasonings by solvent-assisted stir bar solid extraction with reverse extraction. J Biosci Bioeng 2024; 137:372-380. [PMID: 38368121 DOI: 10.1016/j.jbiosc.2024.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/07/2024] [Accepted: 01/18/2024] [Indexed: 02/19/2024]
Abstract
Fermented seasonings have pleasant flavors that stimulate our appetite. Their flavoring properties change depending on factors such as their materials and fermented conditions. Therefore, a comparative analysis of their flavor is important when evaluating their quality. However, seasonings contain high levels of various matrices such as sugars, proteins, lipids, and ethanol, making it difficult to extract aroma compounds efficiently from them. In this study, we verified a high-efficient and high-throughput volatile flavor analysis of fermented seasonings by solvent-assisted stir bar solid extraction (SA-SBSE) with reverse extraction. We applied SA-SBSE to Japanese fermented seasonings, soy sauce, miso (fermented beans), and mirin (sweet rice wine) and compared their profiles with those from other common extraction methods, headspace gas-solid-phase microextraction (HS-SPME), liquid extraction with solvent-assisted flavor evaporation (LE-SAFE), and conventional SBSE (C-SBSE). The aroma properties and profiles of extracts from SA-SBSE were close to those of the original sample, being similar to that of LE-SAFE. In addition, potent aroma compounds in each sample were extracted by SA-SBSE and LE-SAFE, which were far superior to those by C-SBSE. For quantification, SA-SBSE extracts showed a good standard curve by the standard addition method. We could quantify maltol, one of the most common potent aroma compounds in all samples, for various commercial samples by such high-throughput analysis.
Collapse
Affiliation(s)
- Yoko Iijima
- Department of Applied Chemistry, Kogakuin University, 2665-1 Nakano-machi, Hachioji, Tokyo 192-0015, Japan; Department of Nutrition and Life Science, Kanagawa Institute of Technology, 1030 Shimo-ogino, Atsugi, Kanagawa 243-0292, Japan.
| | - Azusa Miwa
- Department of Nutrition and Life Science, Kanagawa Institute of Technology, 1030 Shimo-ogino, Atsugi, Kanagawa 243-0292, Japan
| | - Kaito Shimada
- Department of Applied Chemistry, Kogakuin University, 2665-1 Nakano-machi, Hachioji, Tokyo 192-0015, Japan
| | - Shunsuke Horita
- Department of Applied Chemistry, Kogakuin University, 2665-1 Nakano-machi, Hachioji, Tokyo 192-0015, Japan
| | - Yuho Kamiko
- Department of Applied Chemistry, Kogakuin University, 2665-1 Nakano-machi, Hachioji, Tokyo 192-0015, Japan
| | - Yusuke Ito
- Research and Development Division, Kikkoman Corporation, 338 Noda, Noda, Chiba 278-0037, Japan
| | - Kikuo Sasamoto
- GERSTEL K.K. 1-3-1 Nakane, Meguro-ku, Tokyo 152-0031, Japan
| | - Takeharu Nakahara
- Research and Development Division, Kikkoman Corporation, 338 Noda, Noda, Chiba 278-0037, Japan
| | - Taichi Koizumi
- Research and Development Division, Kikkoman Corporation, 338 Noda, Noda, Chiba 278-0037, Japan
| | - Nobuo Ochiai
- GERSTEL K.K. 1-3-1 Nakane, Meguro-ku, Tokyo 152-0031, Japan
| |
Collapse
|
2
|
Tsuge S, Fujii H, Tamai M, Mizushima I, Yoshida M, Suzuki N, Takahashi Y, Takeji A, Horita S, Fujisawa Y, Matsunaga T, Zoshima T, Nishioka R, Nuka H, Hara S, Tani Y, Suzuki Y, Ito K, Yamada K, Nakazaki S, Kawakami A, Kawano M. POS1339 FACTORS RELATED TO SERUM IgG4 ELEVATION AND DEVELOPMENT OF IgG4-RELATED DISEASE: DATA FROM RESIDENT EXAMINATION. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.2028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundElevated serum IgG4 levels are one of the characteristic findings in immunoglobulin G4 (IgG4)-related disease (IgG4-RD). Serum IgG4 levels have an impact to a certain extent on the diagnosis of IgG4-RD although there are some issues in their sensitivity and specificity. In the reports from Japan, China, USA, and Europe, elevated serum IgG4 levels were reported to be observed in 83-97% of patients with IgG4-RD [1-5]. In the past investigations of hospital patients, some studies reported that 10-15% of hospital patients with elevated serum IgG4 levels had IgG4-RD [6,7]. However, in general adults with no symptom, investigations of prevalence of elevated serum IgG4 levels and/or IgG4-RD have rarely been conducted.ObjectivesThis study aimed to investigate the frequency of serum IgG4 elevation in the general Japanese population and its associated factors using data from resident examinations.MethodsWe measured the serum IgG4 levels in 1,204 residents who underwent a general medical examination in Ishikawa prefecture, Japan. Logistic regression analysis was used to search for factors related to elevated serum IgG4 levels. Secondary examinations were conducted for participants in whom elevation was identified.ResultsThe mean serum IgG4 level was 44 mg/dL, and elevated serum IgG4 levels were observed in 42 patients (3.5%). Univariate logistic regression analyses showed that male sex, older age, lower estimated glomerular filtration rates based on cystatin C (eGFR-CysC), serum high-density lipoprotein cholesterol levels, and higher hemoglobin A1c (HbA1c) levels were associated with elevated serum IgG4 levels. Subgroup analyses in men showed that older age, lower eGFR-CysC levels, and higher serum HbA1c levels were associated with elevated serum IgG4 levels. In contrast, the analyses in women found no significant factors. One of the 10 residents who underwent secondary examinations was diagnosed with possible IgG4-related retroperitoneal fibrosis.ConclusionIn the general population, elevated serum IgG4 levels are more common in elderly men, which is similar to the epidemiological features of IgG4-RD.References[1]Inoue D, et al. IgG4-related disease: dataset of 235 consecutive patients. Medicine (Baltimore). 2015;94(15):e680.[2]Yamada K, et al. New clues to the nature of immunoglobulin G4-related disease: a retrospective Japanese multicenter study of baseline clinical features of 334 cases. Arthritis Res Ther. 2017;19(1):262[3]Culver EL, et al. Elevated serum IgG4 levels in diagnosis, treatment response, organ involvement, and relapse in a prospective IgG4-related disease UK cohort. Am J Gastroenterol 2016;111:733–43.[4]Lin W, et al. Clinical characteristics of immunoglobulin G4-related disease: a prospective study of 118 Chinese patients. Rheumatology (Oxford). 2015;54(11):1982–90.[5]Carruthers MN, et al. The diagnostic utility of serum IgG4 concentrations in IgG4-related disease. Ann Rheum Dis 2015;74:14-18.[6]James Yun, et al. Poor positive predictive value of serum immunoglobulin G4 concentrations in the diagnosis of immunoglobulin G4-related sclerosing disease. Asia Pac Allergy. 2014 Jul;4(3):172-176.[7]Taiwo N Ngwa, et al. Sreum immunoglobulin G4 level is a poor predictor of immunoglobulin G4–related disease. Pancreas. 2014 Jul;43(5):704-7.Disclosure of InterestsNone declared
Collapse
|
3
|
Nakamura M, Satoh N, Tsukada H, Mizuno T, Fujii W, Suzuki A, Horita S, Nangaku M, Suzuki M. Stimulatory effect of insulin on H+-ATPase in the proximal tubule via the Akt/mTORC2 pathway. Physiol Int 2020; 107:376-389. [PMID: 32990653 DOI: 10.1556/2060.2020.00030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 06/12/2020] [Indexed: 11/19/2022]
Abstract
Purpose Acid-base transport in renal proximal tubules (PTs) is mainly sodium-dependent and conducted in coordination by the apical Na+/H+ exchanger (NHE3), vacuolar H+-adenosine triphosphatase (V-ATPase), and the basolateral Na+/HCO3- cotransporter. V-ATPase on PTs is well-known to play an important role in proton excretion. Recently we reported a stimulatory effect of insulin on these transporters. However, it is unclear whether insulin is involved in acid-base balance in PTs. Thus, we assessed the role of insulin in acid-base balance in PTs. Methods V-ATPase activity was evaluated using freshly isolated PTs obtained from mice, and specific inhibitors were then used to assess the signaling pathways involved in the observed effects. Results V-ATPase activity in PTs was markedly enhanced by insulin, and its activation was completely inhibited by bafilomycin (a V-ATPase-specific inhibitor), Akt inhibitor VIII, and PP242 (an mTORC1/2 inhibitor), but not by rapamycin (an mTORC1 inhibitor). V-ATPase activity was stimulated by 1 nm insulin by approximately 20% above baseline, which was completely suppressed by Akt1/2 inhibitor VIII. PP242 completely suppressed the insulin-mediated V-ATPase stimulation in mouse PTs, whereas rapamycin failed to influence the effect of insulin. Insulin-induced Akt phosphorylation in the mouse renal cortex was completely suppressed by Akt1/2 inhibitor VIII and PP242, but not by rapamycin. Conclusion Our results indicate that stimulation of V-ATPase activity by insulin in PTs is mediated via the Akt2/mTORC2 pathway. These results reveal the mechanism underlying the complex signaling in PT acid-base balance, providing treatment targets for renal disease.
Collapse
Affiliation(s)
- M Nakamura
- 1Division of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - N Satoh
- 1Division of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - H Tsukada
- 1Division of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - T Mizuno
- 1Division of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - W Fujii
- 1Division of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - A Suzuki
- 1Division of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan.,2Department of Nephrology, Japan Community Health care Organization (JCHO), Tokyo Yamate Medical Center, Tokyo, Japan
| | - S Horita
- 1Division of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - M Nangaku
- 1Division of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - M Suzuki
- 3Health Service Center, Tokyo Gakugei University, Tokyo, Japan
| |
Collapse
|
4
|
Yahara H, Horita S, Yanamoto S, Kitagawa Y, Asaka T, Yoda T, Morita K, Michi Y, Takechi M, Shimasue H, Maruoka Y, Kondo E, Kusukawa J, Tsujiguchi H, Sato T, Kannon T, Nakamura H, Tajima A, Hosomichi K, Yahara K. A Targeted Genetic Association Study of the Rare Type of Osteomyelitis. J Dent Res 2020; 99:271-276. [PMID: 31977282 DOI: 10.1177/0022034520901519] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Chronic nonbacterial osteomyelitis is a rare bone disorder that can be found in the jaw. It is often associated with systemic conditions, including autoimmune deficiencies. However, little is known about how the genetic and immunologic background of patients influences the disease. Here, we focus on human leukocyte antigen (HLA), killer cell immunoglobulin-like receptors (KIRs), and their specific combinations that have been difficult to analyze owing to their high diversity. We employed a recently developed technology of simultaneous typing of HLA alleles and KIR haplotype and investigated alleles of the 35 HLA loci and KIR haplotypes composed of centromeric and telomeric motifs in 18 cases and 18 controls for discovery and 472 independent controls for validation. We identified an amino acid substitution of threonine at position 94 of HLA-C in combination with the telomeric KIR genotype of haplotype tA01/tB01 that had significantly higher frequency (>20%) in the case population than in both control populations. Multiple logistic regression analysis based on a dominant model with adjustments for age and sex revealed and validated its statistical significance and high predictive accuracy (C-statistic ≥0.85). Structure-based analysis revealed that the combination of the amino acid change in HLA-C and the telomeric genotype tA01/tB01 could be associated with lower stability of HLA-C. This is the first case-control study of a rare disease that employed the latest sequencing technology enabling simultaneous typing and investigated amino acid polymorphisms at HLA loci in combination with KIR haplotype.
Collapse
Affiliation(s)
- H Yahara
- Department of Molecular Immunology and Inflammation, Research Institute, National Center for Global Health and Medicine, Tokyo, Japan
| | - S Horita
- Department of Bioregulation and Pharmacological Medicine, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - S Yanamoto
- Department of Clinical Oral Oncology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Y Kitagawa
- Department of Oral Diagnosis and Medicine, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - T Asaka
- Department of Oral Diagnosis and Medicine, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - T Yoda
- Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - K Morita
- Department of Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Bioresource Research Center, Tokyo Medical and Dental University, Tokyo, Japan
| | - Y Michi
- Department of Oral and Maxillofacial Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - M Takechi
- Department of Oral and Maxillofacial Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - H Shimasue
- Department of Oral and Maxillofacial Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Y Maruoka
- Department of Oral and Maxillofacial Surgery, Center Hospital of the National Center for Global Health and Medicine, Tokyo, Japan
| | - E Kondo
- Department of Dentistry and Oral Surgery, School of Medicine, Shinshu University, Matsumoto, Japan
| | - J Kusukawa
- Dental and Oral Medical Center, School of Medicine, Kurume University, Fukuoka, Japan
| | - H Tsujiguchi
- Department of Environmental and Preventive Medicine, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - T Sato
- Department of Bioinformatics and Genomics, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - T Kannon
- Department of Bioinformatics and Genomics, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - H Nakamura
- Department of Environmental and Preventive Medicine, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - A Tajima
- Department of Bioinformatics and Genomics, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - K Hosomichi
- Department of Bioinformatics and Genomics, Graduate School of Advanced Preventive Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - K Yahara
- Antimicrobial Resistance Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| |
Collapse
|
5
|
NAKAMURA M, Suzuki A, Horita S, Satoh N, Tsukada H, Sato Y, Seki G, Kume H, Nangaku M, Suzuki M. SUN-138 Roles of Na+/HCO3- cotransporter NBCn2 in acid-base transport in the apical membrane of renal proximal tubules. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.538] [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: 10/26/2022] Open
|
6
|
Sugiura T, Yamamoto K, Horita S, Murakami K, Kirita T. Effects of bone density and inclination of implant on micromotion at the bone-implant interface. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.920] [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]
|
7
|
Hara S, Nuka H, Horita S, Zoshima T, Ito K, Aizu M, Fujii H, Yamada K, Kawano M. AB1171 Clinical Significance of Anti-Nuclear Antibodies in IGG4-Related Disease. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4484] [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: 11/04/2022]
|
8
|
Horita S, Sugiura T, Yamamoto K, Kawakami M, Murakami K, Kirita T. Strain distribution of immediately loaded implants with fixed prosthesis using the “All-on-Four” protocol in the edentulous mandible: nonlinear three-dimensional finite element analysis. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.111] [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: 10/24/2022]
|
9
|
Ueda N, Imai Y, Sugiura T, Murakami K, Yamakawa N, Aoki K, Horita S, Yamamoto K, Kirita T. Three-dimensional finite element analysis of the biomechanical strength of the mandible after marginal resection. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.355] [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: 10/24/2022]
|
10
|
Horita S, Kataoka M, Kitamura N, Miyakawa T, Ohtsuka J, Nagata K, Shimizu S, Tanokura M. Structural basis of different substrate preferences of yeast old yellow enzymes. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311083954] [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: 11/10/2022] Open
|
11
|
Sekijima M, Shimizu A, Ishii Y, Kudo S, Horita S, Nakajima I, Fuchinoue S, Teraoka S. Early Humoral-Mediated Graft Injuries in ABO-Incompatible Kidney Transplantation in Human Beings. Transplant Proc 2010; 42:789-90. [DOI: 10.1016/j.transproceed.2010.02.054] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
12
|
Hashimoto S, Horita S, Ito Y, Hirano H, Honda S, Iwamoto Y. Synthesis and mechanical properties of porous alumina from anisotropic alumina particles. Ann Ital Chir 2010. [DOI: 10.1016/j.jeurceramsoc.2009.09.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
13
|
Toki D, Ishida H, Setoguchi K, Shimizu T, Omoto K, Shirakawa H, Iida S, Horita S, Furusawa M, Ishizuka T, Yamaguchi Y, Tanabe K. Acute antibody-mediated rejection in living ABO-incompatible kidney transplantation: long-term impact and risk factors. Am J Transplant 2009; 9:567-77. [PMID: 19260836 DOI: 10.1111/j.1600-6143.2008.02538.x] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The impact of acute antibody-mediated rejection (AAMR) on the long-term outcome on ABO-incompatible (ABOI) kidney transplantation is not well understood. We retrospectively analyzed the long-term impact of AAMR and risk factors for AAMR in 57 consecutive recipients performed between 1999 and 2004. Nineteen patients (33%) who developed AAMR within 3 months posttransplantation constituted of the AMR group. The graft survival rate was significantly lower in the AMR group (AMR vs. non-AMR, respectively; 5 years: 84% vs. 95%; 8 years: 45% vs. 95%; p = 0.009). The prevalence of transplant glomerulopathy at 1 year posttransplantation was significantly higher in the AMR group (AMR 64% vs. non-AMR 3%, p < 0.001). Multivariate analysis demonstrated that anti-blood group IgG antibody titers of 1:32 at the time of transplantation (OR, 9.52; p = 0.041) and donor-specific anti-HLA antibodies (DSHA) detected by Luminex single bead method (OR, 5.68; p = 0.015) were independent risk factors for AAMR regardless of baseline anti-blood group IgG antibody titers. Our results indicate that AAMR has a heavy impact on the long-term outcome and preoperative DSHA appears to have a more significant association with poor graft outcomes than anti-blood group antibodies, even in ABOI kidney transplantation.
Collapse
Affiliation(s)
- D Toki
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Yamamoto I, Horita S, Takahashi T, Kobayashi A, Toki D, Tanabe K, Hattori M, Teraoka S, Aita K, Nagata M, Yamaguchi Y. Caveolin-1 expression is a distinct feature of chronic rejection-induced transplant capillaropathy. Am J Transplant 2008; 8:2627-35. [PMID: 19032226 DOI: 10.1111/j.1600-6143.2008.02421.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Peritubular capillary basement membrane multilayering (PTCBMML) is a pathological landmark of chronic rejection-induced transplant capillaropathy (TC), but its cellular mechanisms are not fully understood. We observed de novo caveolae formation in endothelial cells in TC under electron microscopy. To examine the role of caveolae and their structural components in TC, biopsy samples from cases of chronic rejection were double-immunostained for Caveolin-1 (Cav-1) and Pathologische Anatomie Leiden-endothelium (PAL-E; a marker of peritubular capillary [PC]). Thirty-two cases of chronic rejection (group I) were compared with 18 cases of interstitial fibrosis and tubular atrophy with no evidence of any specific etiology (IF/TA; group II) and eight cases of peritubular capillaritis (group III). The Cav-1/PAL-E immunoreactivities in groups I-III (%Cav-1/PAL-E) were 41.8+/-23.1%, 8.1+/-7.3% (p < 0.01 vs. group I) and 12.7+/-7.4% (p < 0.01 vs. group I), respectively. Furthermore, multiple linear regression models demonstrated that %Cav-1/PAL-E was independently associated with the PTCBMML grade and reduced PC number. No correlation was observed between %Cav-1/PAL-E and PC C4d deposition in group I. We conclude that de novo caveolae formation in PC endothelia is involved in TC in chronic rejection.
Collapse
Affiliation(s)
- I Yamamoto
- Division of Kidney and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Setoguchi K, Ishida H, Shimmura H, Shimizu T, Shirakawa H, Omoto K, Toki D, Iida S, Setoguchi S, Tokumoto T, Horita S, Nakayama H, Yamaguchi Y, Tanabe K. Analysis of renal transplant protocol biopsies in ABO-incompatible kidney transplantation. Am J Transplant 2008; 8:86-94. [PMID: 18021283 DOI: 10.1111/j.1600-6143.2007.02036.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Numerous studies have shown that protocol biopsies have predictive power. We retrospectively examined the histologic findings and C4d staining in 89 protocol biopsies from 48 ABO-incompatible (ABO-I) transplant recipients, and compared the results with those of 250 controls from 133 ABO-compatible (ABO-C) transplant recipients given equivalent maintenance immunosuppression. Others have shown that subclinical rejection (borderline and grade I) in ABO-C grafts decreased gradually after transplantation. In our study, however, subclinical rejection in the ABO-I grafts was detected in 10%, 14% and 28% at 1, 3 and 6-12 months, respectively. At 6-12 months, mild tubular atrophy was more common in the ABO-C grafts whereas the incidence of transplant glomerulopathy did not differ between the two groups (ABO-C: 7%; ABO-I: 15%; p = 0.57). In the ABO-I transplants, risk factors for transplant glomerulopathy in univariate analysis were positive panel reactivity (relative risk, 45.0; p < 0.01) and a prior history of antibody-mediated rejection (relative risk, 17.9; p = 0.01). Furthermore, C4d deposition in the peritubular capillaries was detected in 94%, with diffuse staining in 66%. This deposition, however, was not linked to antibody-mediated rejection. We conclude that, in the ABO-I kidney transplantation setting, detection of C4d alone in protocol biopsies might not have any diagnostic or therapeutic relevance.
Collapse
Affiliation(s)
- K Setoguchi
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Abstract
Diabetes mellitus is a clinically heterogeneous disorder which is characterized by hyperglycaemia due to an absolute or relative deficiency of insulin. Both genetic and non-genetic factors contribute to its development and, as such, it represents a multifactorial disorder. In addition, it may also be, in some instances, a polygenic disorder resulting from the cumulative effects of several genes with or without environmental factors. Serological and/or DNA markers for genes that confer susceptibility to the insulin-dependent form of the disorder (IDDM; type 1) have been identified in the HLA-D region of chromosome 6 and near the insulin gene on chromosome 11. Patients with non-insulin-dependent diabetes mellitus (NIDDM; type 2) make up a more heterogeneous group than those with IDDM and it is likely that in these patients similar clinical phenotypes may be produced by different genetic defects. The synthesis of either an abnormal insulin/proinsulin molecule or an abnormal insulin receptor can confer susceptibility to NIDDM. The genes encoding insulin and the insulin receptor are on chromosomes 11 and 19, respectively. In addition, studies of restriction fragment length polymorphism and disease associations suggest that two other genes may contribute to the development of NIDDM on chromosome 11, one near the insulin gene on the short arm of this chromosome and the other near the apolipoprotein A-I gene on the long arm. None of the susceptibility genes that have been identified to date causes diabetes in the absence of other genetic or non-genetic contributing factors, which is consistent with a multifactorial or polygenic origin for this disorder.
Collapse
MESH Headings
- Alleles
- Amino Acid Sequence
- Chromosome Mapping
- Chromosomes, Human, Pair 11
- Chromosomes, Human, Pair 19
- Chromosomes, Human, Pair 6
- Diabetes Mellitus, Type 1/genetics
- Diabetes Mellitus, Type 2/genetics
- Genetic Markers
- Humans
- Insulin/genetics
- Molecular Sequence Data
- Polymorphism, Genetic
- Polymorphism, Restriction Fragment Length
Collapse
Affiliation(s)
- G I Bell
- Department of Biochemistry & Molecular Biology, University of Chicago, Illinois 60637
| | | | | | | | | |
Collapse
|
17
|
Yamamoto I, Horita S, Takahashi T, Tanabe K, Fuchinoue S, Teraoka S, Hattori M, Yamaguchi Y. Glomerular expression of plasmalemmal vesicle-associated protein-1 in patients with transplant glomerulopathy. Am J Transplant 2007; 7:1954-60. [PMID: 17617859 DOI: 10.1111/j.1600-6143.2007.01876.x] [Citation(s) in RCA: 33] [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: 01/25/2023]
Abstract
Transplant glomerulopathy (TG) is a prominent feature of chronic rejection that is characterized by double contours of the glomerular capillaries (GC). In this report, we demonstrate that one of the histopathological features of TG is a phenotypic change of glomerular endothelial cells which is illustrated by increased caveolae formation. To verify the endothelial changes in this disease, we examined the expression of plasmalemmal vesicle-associated protein-1 (PV-1), a glycoprotein associated with plasmalemmal vesicles (caveolae), in the glomeruli of TG patients using pathologische anatomie Leiden-endothelium (PAL-E) antibody. Twenty-six cases of chronic allograft nephropathy (CAN) with TG were examined, compared with 16 cases of CAN without TG, type I MPGN (4 cases), and transplant glomerulitis (8 cases). Overall, 24 of 26 (92.3%), 4 of 16 (25%), 0 of 4, 0 of 8 cases were PAL-E-positive for GC, respectively. Further, the extent of glomerular PAL-E expression was positively correlated with both the grade of TG (rs= 0.72, p = 0.0003) and proteinuria (g/day) (rs= 0.51, p = 0.02). A correlation was not observed between glomerular PAL-E positivity and peritubular capillary C4d deposits (Yetes chi = 0.23, p = 0.89). In summary, the present study demonstrates expression of PV-1 in the GC of TG which is correlated with the grade of TG and proteinuria.
Collapse
Affiliation(s)
- I Yamamoto
- Department of Internal Medicine, Division of Kidney and Hypertension, The Jikei University School of Medicine.
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Aita K, Yamaguchi Y, Horita S, Ohno M, Tanabe K, Fuchinoue S, Teraoka S, Toma H, Nagata M. Thickening of the peritubular capillary basement membrane is a useful diagnostic marker of chronic rejection in renal allografts. Am J Transplant 2007; 7:923-9. [PMID: 17391134 DOI: 10.1111/j.1600-6143.2006.01708.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In kidney transplantation, the multilayering of the peritubular capillary basement membrane (MLPTC) in electron microscopy (EM) has been recognized as a feature of chronic rejection (CR). In this study, thickening of the peritubular capillary (PTC) basement membrane was evaluated by light microscopy (LM) to determine whether it corresponds to the MLPTC in EM and whether it can be used as a diagnostic marker of CR. Forty-eight patients with late renal allograft were divided into chronic allograft nephropathy (CAN) with CR (Group 1, n = 23), CAN without CR (Group 2, n = 19) and CAN-free (Group 3, n = 6). The thickening of the PTC basement membrane (ptcbm) was scored from grades 0 to 2 (ptcbm score), and the MLPTC thickness was measured in EM. Interobserver agreement on ptcbm scores was statistically significant (Kappa coefficient = 0.63). LM and EM lesions corresponded very well. The ptcbm score was highest in Group 1, and ptcbm2 corresponded closely with CR. Group 1 showed significantly thicker MLPTC than Groups 2 and 3. The results validated the usefulness of the ptcbm score and suggested that the thickening of the PTC basement membrane can be a novel diagnostic marker of CR.
Collapse
Affiliation(s)
- K Aita
- Department of Molecular Pathology, Institute of Basic Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Yamamoto I, Yamaguchi Y, Yamamoto H, Hosoya T, Horita S, Tanabe K, Fuchinoue S, Teraoka S, Toma H. A Pathological Analysis of Lymphatic Vessels in Early Renal Allograft. Transplant Proc 2006; 38:3300-3. [PMID: 17175254 DOI: 10.1016/j.transproceed.2006.10.095] [Citation(s) in RCA: 18] [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] [Received: 07/14/2006] [Indexed: 11/22/2022]
Abstract
Lymphatic vessels are an essential part of the immunological response. Nevertheless, little is known about the pathology of renal transplant rejection. In part the reason may be not distinguishing peritubular capillaries from lymphatic vessels by periodic acid-Schiff (PAS) staining. This study examined the morphology of lymphatic vessels in early renal allografts using double staining with PAS and podoplanin. The 41 cases were divided into four categories: (I) acute antibody-mediated rejection, (II) acute cellular rejection, (III) peritubular capillaritis only, and (IV) controls. I through III had the evidence of peritubular capillaritis exceeding grade 1 on a biopsy obtained an average of 17.3 +/- 5.5 days after kidney transplantation. In addition, each lymphatic vessel density (LVD) and nodular lesion of lymphocytes (NL) were quantified as the number of each podoplanin-positive vascular profiles and NL per unit area of cortex measured Lumina Vision (Mitani). The average of the LVD was 73.0, 35.1, 37.1, and 8.1 per 10 mm2 for groups I to IV and the average of NL was 2.8, 5.5, 1.3, 0.9, respectively. There was a significant correlation between LVD and NL. NL showed a strong relation to the accumulation of lymphocytes in lymphatic vessels (AL); 22% of the AL scores were greater than the peritubular capillaritis grade. We found lymphatic vessels to be strongly associated with any kind of inflammatory process that occurred unexpectedly soon after kidney transplantation. In addition, to avoid misdiagnosis of peritubular capillaritis, NL in early renal allograft must especially be excluded.
Collapse
Affiliation(s)
- I Yamamoto
- Division of Kidney and Hypertension, The Jikei University School of Medicine, Tokyo, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Nogami Y, Ito T, Yamamoto K, Irie N, Horita S, Kambe T, Nagao N, Oshima K, Ikeda N, Nakamura T. X-ray structural study of charge and anion orderings of TMTTF salts. ACTA ACUST UNITED AC 2005. [DOI: 10.1051/jp4:2005131008] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
|
21
|
Hara S, Matsushita H, Yamaguchi Y, Kawaminami K, Horita S, Furusawa M. Allograft Glomerulitis: Histologic Characteristics to Detect Chronic Humoral Rejection. Transplant Proc 2005; 37:714-6. [PMID: 15848511 DOI: 10.1016/j.transproceed.2004.11.077] [Citation(s) in RCA: 7] [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: 11/18/2022]
Abstract
The aim of this study was to clarify the histopathologic significance of allograft glomerulitis in chronic allograft nephropathy (CAN). Review of our renal allograft biopsy files revealed 140 specimens with CAN among 115 selected patients. They were classified into two groups: one had CAN with glomerulitis (group G), and the other was free of this finding (group NG). We evaluated the clinicopathologic parameters as follows: levels of serum creatinine and proteinuria in the biopsy; presence of circulating anti-donor antibodies; allograft failure rate; history of biopsy-proven acute cellular rejection (ACR) and acute humoral rejection (AHR); complications of ACR and chronic rejection (CR); and results of immunofluorescence studies for C4d and HLA-DR. The glomerulitis group showed a significantly greater incidence of CR complications, the presence of circulating anti-donor antibodies, and C4d deposition in peritubular and glomerular capillaries. This group also showed higher levels of serum creatinine and proteinuria, higher graft loss rate, and increased AHR incidence, although the differences were not significant. There was also no statistical significance in the HLA-DR expression on tubular epithelial cells. The present results strongly suggest that humoral factors may play an important role in the progression of glomerulitis in CAN. Therefore, we suspect that glomerulitis in CAN is one of the main histologic markers for CR. The presence of glomerulitis may represent humoral factor-dependent inflammation. It should be considered an important diagnostic criterion for CR in addition to double-contour formation and elastica disruptions with or without subendothelial inflammation (Banff '97).
Collapse
Affiliation(s)
- S Hara
- Department of Pathology, Toranomon Hospital, Tokyo, Japan
| | | | | | | | | | | |
Collapse
|
22
|
Seki S, Tamura H, Horita S, Ito N. Enhanced scanning ion microprobe image analysis for rough surface samples as an alternative to SIMS depth profiling. SURF INTERFACE ANAL 2004. [DOI: 10.1002/sia.1794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
23
|
Aita K, Yamaguchi Y, Shimizu T, Horita S, Furusawa M, Tanabe K, Fuchinoue S, Toma H. Histological analysis of late renal allografts of antidonor antibody positive patients with C4d deposits in peritubular capillaries. Clin Transplant 2004; 18 Suppl 11:7-12. [PMID: 15191366 DOI: 10.1111/j.1399-0012.2004.00240] [Citation(s) in RCA: 10] [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: 11/30/2022]
Abstract
The association of humoral immunity with late renal allograft dysfunction has recently been recognized, and many reports have revealed C4d deposits in peritubular capillaries (C4d in PTC), and the presence of serum antidonor HLA antibody in patients suffering from graft dysfunction, long time after transplantation. In this study, morphological changes in renal allograft biopsies more than 1 year after transplantation in 14 patients with C4d in PTC and serum antidonor antibody were investigated for the presence of chronic rejection (CR). In addition to the light microscope study, an electron microscope study was done to evaluate the multilayering of the peritubular capillary basement membrane (MLPTC). Histologically, only seven of 14 patients met the criteria of CR, and 71.4% (5/7) of CR patients had episodes of acute humoral rejection (AHR), coexisting with acute tubulointerstitial rejection. Peritubular capillaritis was observed in all patients, although it differed in severity. Transplant glomerulitis and interstitial inflammation were also observed in many patients: 71.4% (10/14) and 92.9% (13/14) respectively. MLPTC was observed in 12 patients (85.7%), but the severity of the MLPTC did not reflect the severity of peritubular capillaritis or any other histological features. The long-term outcomes of the patients CR, especially those with episodes of AHR, were poor, and two of them lost their graft functions. On the other hand, patients without CR had relatively favourable outcomes. In conclusion, we confirmed the diverse morphological changes of late renal allografts, which cannot be categorized as chronic humoral rejection (CHR), and such patients who do not have typical morphological changes such as CHR, should be followed-up on a long-term basis in order to clarify the significance of C4d on PTC in late renal allografts.
Collapse
Affiliation(s)
- K Aita
- Department of Pathology, Toranomon Hospital, Tokyo, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Kanetsuna Y, Yamaguchi Y, Horita S, Tanabe K, Toma H. C4d and/or immunoglobulins deposition in peritubular capillaries in perioperative graft biopsies in ABO-incompatible renal transplantation. Clin Transplant 2004; 18 Suppl 11:13-7. [PMID: 15191367 DOI: 10.1111/j.1399-0012.2004.00241] [Citation(s) in RCA: 28] [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: 12/01/2022]
Abstract
We evaluated 0 h and/or 1 h graft biopsy specimens from 14 recipients in ABO-incompatible renal transplantation using immunofluorescence for C4d, IgG, and IgM. All 0 h biopsy specimens revealed negative C4d, IgG, and IgM deposition in peritubular capillaries (PTC). In contrast, 8 of 14 1 h biopsy specimens revealed a positive C4d deposition in PTC. Eight specimens revealed positive IgM staining and seven of them had both C4d and IgM depositions. Three specimens had C4d, IgM, and IgG depositions in PTC. Three of eight patients with C4d deposition and two of six patients without C4d deposition in the 1 h biopsy group suffered from acute rejection within 1 month of transplantation. These findings suggest that complement fragments and immunoglobulin deposition in PTC in ABO-incompatible renal grafts can start soon after reperfusion, although acute rejection may or may not develop.
Collapse
Affiliation(s)
- Y Kanetsuna
- Department of Pathology, Jikei University, Tokyo, Japan
| | | | | | | | | |
Collapse
|
25
|
Horita S, Nitta K, Kawashima M, Honda K, Onitsuka S, Tokumoto T, Tanabe K, Toma H, Nihei H, Yamaguchi Y. C4d deposition in the glomeruli and peritubular capillaries associated with transplant glomerulopathy. Clin Transplant 2003; 17:325-30. [PMID: 12868988 DOI: 10.1034/j.1399-0012.2003.t01-1-00014.x] [Citation(s) in RCA: 21] [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: 11/23/2022]
Abstract
Transplant glomerulopathy (TGP) is a unique disease entity with characteristic pathological findings. Although ultrastructural studies for TGP have been performed, histogenesis of TGP is not fully understood. The present study was designed to investigate the relation of complement fragment C4d to the histogenesis of TGP. Nine cases of isolated TGP were randomly selected. A commercially available monoclonal antibody against complement fragment C4d was used in allograft biopsies. To evaluate the extent and severity of deposition of the C4d complement in the glomerular and peritubular capillaries, indirect immunofluoresce method was performed on frozen sections. Intense deposition of C4d in the glomerular basement membrane and peritubular capillaries was found in association with morphological appearance of TGP. Peritubular capillaries were affected in all the patients, showing splitting and multilayering of peritubular capillary basement membrane. These changes, which diffusely affect most capillaries, and their severity pattern were quite similar in each patient. In early stages of all patients with cellular rejection, C4d was not detected in the glomerular and peritubular capillaries. In addition, no C4d deposition was detected in all zero-hour biopsies without diagnostic abnormality. These findings suggest that C4d deposition in the glomerular and peritubular capillaries might be associated with the pathogenesis of TGP in renal transplantation.
Collapse
Affiliation(s)
- S Horita
- Departments of Medicine and Urology, Tokyo Women's Medical University, Tokyo, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Usui J, Kanemoto K, Tomari S, Shu Y, Yoh K, Mase K, Hirayama A, Hirayama K, Yamagata K, Nagase S, Kobayashi M, Nitta K, Horita S, Koyama A, Nagata M. Glomerular crescents predominantly express cadherin-catenin complex in pauci-immune-type crescentic glomerulonephritis. Histopathology 2003; 43:173-9. [PMID: 12877733 DOI: 10.1046/j.1365-2559.2003.01660.x] [Citation(s) in RCA: 14] [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: 11/20/2022]
Abstract
AIMS To investigate the expression of the cadherin complex in human crescentic glomerulonephritis to elucidate the role of intercellular adherens junction molecules in crescent formation. METHODS AND RESULTS Immunostaining revealed cadherin complexes localized in Bowman's epithelial cells, but not in podocytes, of normal human glomeruli. Eight adult cases with myeloperoxidase anti-neutrophil cytoplasmic autoantibodies (MPO-ANCA)-related (pauci-immune type) crescentic glomerulonephritis were examined on immunofluorescence microscopy with anti-pan cadherin, p120 catenin, and beta-catenin antibodies. The specimens provided six cellular crescents, 12 fibrocellular crescents, and four fibrotic crescents. Immunofluorescence was semiquantitatively estimated by the rate of the field of localization within the whole area of the crescent, according to the four-grade system [(-) - (++)]. All the tested molecules consisting of the cadherin complex were abundantly observed in cytokeratin-positive epithelial components in crescents, each with an equivalent area of localization. The expression of the cadherin complex was closely associated with that of cytokeratin and both diminished as the crescents developed from cellular to fibrotic. CONCLUSIONS The cadherin-catenin complex is a specific marker of Bowman's epithelial cells in human glomeruli. The cellular crescents in pauci-immune-type crescentic glomerulonephritis possess adherens junction molecules, indicating a principle parietal epithelial cell phenotype.
Collapse
Affiliation(s)
- J Usui
- Departments of Pathology and Internal Medicine, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Koike J, Yamaguchi Y, Horita S, Tanabe K, Fuchinoue S, Toma H, Nihei H. Clinical and pathological assessment of acute vascular rejection in the transplant kidney. Clin Transplant 2002; 15 Suppl 5:41-4. [PMID: 11791794 DOI: 10.1034/j.1399-0012.2001.0150s5041.x] [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] [Indexed: 11/23/2022]
Abstract
Acute vascular rejection (AVR) in kidney transplantation is the most important factor influencing graft prognosis. We focus on patients whose grafts were lost because of AVR, and assessed their clinical characteristics and histological findings of biopsied renal grafts. Biopsied specimens exhibited AVR in 43 patients who underwent kidney transplantation in the Kidney Center of Tokyo Women's Medical University from 1995 to 1999. In the follow-up from 1 to 5 yr (median: 2.5 yr) we classified these patients into three groups: favourable prognosis group (FPG), relatively poor prognosis group (RPPG) and poor prognosis group (PPG). Light microscopic study for histological grading of acute rejection according to the Banff scheme and detection of the C4d complement deposition on peritubular capillaries by the immunofluorescence method were performed. Based on the results, the donors of RPPG and PPG were significantly older than those of FPG, and all factors of acute rejection according to the Banff scheme were not statistically significantly different among the three groups. However, an acute tubular injury mimicking acute tubular necrosis (ATN) was observed in the biopsy specimens from PPG. In conclusion, an older donor is a risk factor of poor prognosis of the graft with AVR, and acute tubular injury mimicking ATN is one of the important features that enables the prediction of graft failure originating from AVR in kidney transplantation.
Collapse
Affiliation(s)
- J Koike
- Department of Pathology, St Marianna University, School of Medicine, Kawasaki, Kanagawa, Japan
| | | | | | | | | | | | | |
Collapse
|
28
|
Watanabe S, Yamaguchi Y, Suzuki T, Ikezoe M, Matsumoto N, Chikamoto H, Nagafuchi H, Horita S, Hattori M, Shiraga H, Tokumoto T, Tanabe K, Toma H, Ito K. Inherited factor H dysfunction and complement-associated glomerulonephritis in renal grafts of first and second transplantations. Clin Transplant 2002; 15 Suppl 5:45-50. [PMID: 11791795 DOI: 10.1034/j.1399-0012.2001.0150s5045.x] [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] [Indexed: 12/25/2022]
Abstract
A 38-yr-old man with factor H dysfunction and unknown glomerular disease received first and second renal transplantations (Tx) from living-related donors. His examination showed a low percentage activity of factor H (31%). Factor H dysfunction has been known to be associated with type II or III membranoproliferative glomerulonephritis (MPGN), haemolytic uraemic syndrome and IgA GN. The first graft from his mother showed diffuse mesangial deposit of IgA. His son has had IgA GN and his data also revealed a low percentage activity of factor H (33%). He and his son both showed a low activity of C3. Moreover, his father, who was the donor of the second Tx, had a low percentage activity of factor H (25%), and presented with mild glomerular deposit of C3 at operation, while he has been healthy through his entire 67 yr of life. Each of them had a low percentage activity of factor H. These findings through three generations suggested the inheritance of factor H dysfunction. The patient presented with proteinuria 3 months after the first Tx. At the first biopsy 30 months after the first Tx, light microscopy revealed minor glomerular abnormalities with electron dense deposits in subepithelial, intramembranous and mesangial regions, while immunofluorescence showed massive glomerular deposits of C3. In the second biopsy 51 months after the first Tx, the glomerulonephritis developed mesangial proliferation and crescent formation, accompanied by more massive C3 deposit and intramembranous, mesangial and subepithelial dense deposits. He then required redialysis. At the second and third biopsies within 2 months after the second Tx, the renal graft showed similar findings to the first biopsy after the first Tx. He perhaps presented with a recurrence of complement-associated GN, showing an atypical form of MPGN after Tx. These findings suggest that factor H dysfunction may play an important role of a certain pathogenesis of GN.
Collapse
Affiliation(s)
- S Watanabe
- Department of Paediatric Nephrology, Tokyo Women's Medical University, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Tsukada M, Honda K, Suzuki K, Koike M, Horita S, Nitta K, Yumura W, Nihei H. Significance of incidental mesangial IgA deposition in minimal change nephrotic syndrome. Nephrology (Carlton) 2001. [DOI: 10.1046/j.1440-1797.2001.00014.x] [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: 11/20/2022]
|
30
|
Nitta K, Ishizuka T, Horita S, Hayashi T, Ajiro A, Uchida K, Honda K, Oba T, Kawashima A, Yumura W, Kabaya T, Akiba T, Nihei H. Soluble osteopontin and vascular calcification in hemodialysis patients. Nephron Clin Pract 2001; 89:455-8. [PMID: 11721165 DOI: 10.1159/000046119] [Citation(s) in RCA: 38] [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: 11/19/2022] Open
Abstract
BACKGROUND Vascular calcification often occurs in patients with uremia. As osteopontin (OPN) is not only involved in the physiological but also the pathological calcification of tissues, OPN may be associated with the pathogenesis of aortic calcification in hemodialysis (HD) patients. METHODS We examined the expression of OPN in atherosclerotic aortas of HD patients. In addition, we performed a prospective longitudinal study by using CT scans to detect aortic calcifications and by measuring the plasma OPN concentration by ELISA in HD patients (20 men, 16 women; mean age 55.2 +/- 21.3 years) and in healthy volunteers (18 men, 17 women; mean age 54.0 +/- 13.2 years). RESULTS By immunohistochemical staining, OPN was abundantly localized in atherosclerotic plaques of HD patients. The macrophages surrounding the atheromatous plaques were identified as the OPN-expressing cells. We furthermore found that the concentration of soluble plasma OPN was significantly higher in HD patients as compared with the concentrations in age-matched healthy volunteers (837.3 +/- 443.2 vs. 315.1 +/- 117.4 ng/ml, p < 0.01). The OPN concentration was positively correlated with the aortic calcification index in HD patients (r = 0.749, p < 0.01). CONCLUSION These data suggest that OPN, secreted by macrophages, plays a role in the calcification of atheromatous plaques in HD patients.
Collapse
Affiliation(s)
- K Nitta
- Department of Medicine, Kidney Center, Tokyo Women's Medical University, Tokyo, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
|
32
|
Nitta K, Horita S, Okano K, Uchida K, Honda K, Koike M, Sekine S, Itabashi M, Tsukada M, Takei T, Suzuki K, Yumura W, Nihei H. Tubular osteopontin expression in patients with ANCA-associated glomerulonephritis. Clin Nephrol 2001; 56:459-66. [PMID: 11770797] [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: 02/23/2023] Open
Abstract
OBJECTIVE To elucidate the role of osteopontin (OPN) in monocyte recruitment in crescentic glomerulonephritis, we investigated immunohistochemical localization of OPN in the kidney and its correlation with clinical and histopathologic parameters in biopsy specimens of patients with myeloperoxidase antineutrophil cytoplasmic autoantibody- (MPO-ANCA) associated glomerulonephritis. METHODS Twelve patients with MPO-ANCA-associated glomerulonephritis were enrolled in this study. Clinical parameters such as creatinine clearance and urinary protein excretion of each patient were obtained at the time of biopsy. Paraffin-embedded sections were used for immunohistochemical staining using the LSAB method. Five cortical interstitial fields randomly selected at original magnification x 200 were assessed using a computer-assisted color image analyzer. Tubular OPN expression was assessed as the percentage of positive area in the tubulointerstitium. Double immunofluorescent staining using antibodies against OPN and alpha(v)beta3 was performed. RESULTS In all of the cases studied, OPN was occasionally localized within the glomeruli, and expressed slightly in proximal tubular epithelium and significantly in distal tubular epithelium. Tubular OPN expression tended to be promoted in the interstitium infiltrating by numerous monocytes/macrophages. The extent of tubular OPN expression was positively correlated with serum ANCA titers and urinary OPN concentrations. Enhanced alpha(v)beta3 expression appeared in the distal tubular epithelium expressing OPN. CONCLUSION These results suggest that inducible expression of OPN and alpha(v)beta3 in the tubular epithelium seems to be associated with interstitial moncyte infiltration and subsequent tubulointerstitial changes in human MPO-ANCA-associated glomerulonephritis.
Collapse
Affiliation(s)
- K Nitta
- Department of Medicine, Kidney Center, Tokyo Womens' Medical University, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Kajii T, Ikeuchi T, Yang ZQ, Nakamura Y, Tsuji Y, Yokomori K, Kawamura M, Fukuda S, Horita S, Asamoto A. Cancer-prone syndrome of mosaic variegated aneuploidy and total premature chromatid separation: report of five infants. Am J Med Genet 2001; 104:57-64. [PMID: 11746029 DOI: 10.1002/ajmg.1580] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Five infants (two girls and three boys) from four families all had severe pre- and postnatal growth retardation, profound developmental delay, microcephaly, hypoplasia of the brain with Dandy-Walker complex or other posterior fossa malformations, and developed uncontrollable clonic seizures. Four infants developed Wilms tumors, and one showed cystic lesions in bilateral kidneys. All five infants showed variegated mosaic aneuploidy in cultured lymphocytes. In two infants whose chromosomes were prepared by us, 48.5%-83.2% lymphocytes showed total premature chromatid separation (PCS). Their parents had 3.5%-41.7% of their lymphocytes in total PCS. The remaining three infants and their parents, whose chromosomes were prepared at outside laboratories, tended to show lower frequencies of total PCS. Another five infants reported with the disorder were reviewed together with the five infants we described. Together, their clinical and cytogenetic manifestations were similar enough to suggest a syndrome. Seven of the 10 infants developed proven or probable Wilms tumors. The age at diagnosis of the tumors was younger than usual at 2-16 months. The tumors were bilateral in four infants and unilateral in three infants, and cystic changes were present in six infants. Two infants developed botryoid rhabdomyosarcoma. The carriers of the syndrome are thus liable to tumorigenesis. The possible role of mitotic checkpoint defects, proven in two infants with the syndrome (Matsuura et al. [2000: Am J Hum Genet 69:483-486]), was discussed in connection with tumor development and progression.
Collapse
Affiliation(s)
- T Kajii
- Kuboyama-cho 1-9-3-311, Hachioji, Tokyo 192-0023, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Ogawa S, Nagamatsu G, Watanabe M, Watanabe S, Hayashi T, Horita S, Nitta K, Nihei H, Tezuka K, Abe R. Opposing effects of anti-activation-inducible lymphocyte-immunomodulatory molecule/inducible costimulator antibody on the development of acute versus chronic graft-versus-host disease. J Immunol 2001; 167:5741-8. [PMID: 11698447 DOI: 10.4049/jimmunol.167.10.5741] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The functional role of inducible costimulator (ICOS)-mediated costimulation was examined in an in vivo model of alloantigen-driven Th1 or Th2 cytokine responses, the parent-into-F(1) model of acute or chronic graft-vs-host disease (GVHD), respectively. When the Ab specific for mouse ICOS was injected into chronic GVHD-induced mice, activation of B cells, production of autoantibody, and development of glomerulonephritis were strongly suppressed. In contrast, the same treatment enhanced donor T cell chimerism and host B cell depletion in acute GVHD induced host mice. Blocking of B7-CD28 interaction by injection of anti-B7-1 and anti-B7-2 Abs inhibited both acute and chronic GVHD. These observations clearly indicate that the costimulatory signal mediated by CD28 caused the initial allorecognition resulting in the clonal expansion of alloreactive T cells, whereas the costimulatory signal mediated by ICOS played a critical role in the functional differentiation and manifestation of alloreactive T cells. Furthermore, treatment with anti-ICOS Ab selectively suppresses Th2-dominant autoimmune disease.
Collapse
Affiliation(s)
- S Ogawa
- Division of Immunobiology, Research Institutes of Biological Sciences, Science University of Tokyo, Chiba, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Abstract
Only about 50 surgical cases of adrenal hemangioma have been reported in the literature. Presented here is the first case of a large adrenal hemangioma that was removed by a retroperitoneoscopic procedure.
Collapse
Affiliation(s)
- T Yagisawa
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan.
| | | | | | | | | | | |
Collapse
|
36
|
Watanabe S, Yamaguchi Y, Hattori M, Chikamoto H, Matsumoto N, Suzuki T, Oonishi M, Horita S, Tokumoto T, Tanabe K, Shiraga H, Toma H, Ito K. A peculiar vacuolization in the kidney transplant of a child treated with tacrolimus. Clin Transplant 2001; 14 Suppl 3:30-2. [PMID: 11092350 DOI: 10.1034/j.1399-0012.2000.0140s3030.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 11/23/2022]
Abstract
Tacrolimus (TAC) is a useful immunosuppressive agent in the prevention of rejection. However, the blood level between its therapeutic and toxic levels is narrow such that its nephrotoxicity is a problem. Moreover, its bioavailability and pharmacokinetics are highly variable. We experienced a case of acute nephrotoxicity, in which the blood level rose about 10 times above the expected level. We found a peculiar vacuolization in the transplant biopsy specimen. This change showed a marked vacuolization of the tubular cells, suggestive of acute nephrotoxicity by TAC.
Collapse
Affiliation(s)
- S Watanabe
- Department of Pediatric Nephrology, Tokyo Women's Medical University, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Koike J, Yamaguchi Y, Horita S, Tanabe K, Fuchinoue S, Toma H, Agishi T. Super long-term surviving two renal grafts with severe arteriolosclerosis and glomerulosclerosis. Clin Transplant 2001; 14 Suppl 3:37-41. [PMID: 11092352 DOI: 10.1034/j.1399-0012.2000.0140s3037.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 11/23/2022]
Abstract
Two long-term renal transplant survivors, for about 20 yr, with unusual histological features in the allograft kidney are reported. In both cases, marked hyalinosis was observed in the arterioles of the transplanted kidney, despite never having been administered cyclosporine or tacrolimus. The cause remains unknown at the present time, but we think that the changes could be multifactorial in origin, including due to aging of the graft, hypertension, hyperlipidemia and chronic rejection. We conclude that histological analysis of the allograft kidney must be performed in long-term renal transplant survivors, in order to understand the histological changes in the chronic phase after kidney transplantation and to predict the prognosis of the graft.
Collapse
Affiliation(s)
- J Koike
- Department of Pathology, St. Marianna University School of Medicine, Japan
| | | | | | | | | | | | | |
Collapse
|
38
|
Kudoh S, Sawada T, Adachi E, Horita S, Tojimbara T, Nakajima I, Fuchinoue S, Agishi T. Staining of collagen type IV in liver allografts. Transplant Proc 2000; 32:2359. [PMID: 11120199 DOI: 10.1016/s0041-1345(00)01698-5] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- S Kudoh
- Tokyo Women's Medical University, Kidney Center, Tokyo, Japan
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Affiliation(s)
- K Utsumi
- Tokyo Women's Medical University, Kidney Center, Department of Surgery (K.U., T.S., S.H., T.T., I.N., S.F., T.A.), Tokyo, Japan
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Abstract
BACKGROUND Injection of BALB/c or DBA/2 spleen cells into F1 C57BL/6 (B6) hybrids induces a graft-versus-host reaction (GVHR) of a chronic stimulatory type that results in clinical and pathologic manifestations that resemble the human systemic lupus erythematosus (SLE). The aim of the present study was to examine the role of a major T-cell costimulatory signal receptor, CD28, in the production of autoantibody and the development of an immune complex glomerulonephritis, which are common in SLE pathology. METHODS For this purpose, CD28-deficient (CD28KO) mice were used for the source of donor lymphocytes. Chronic GVHR was induced by an injection of BALB/c or BALB. CD28KO donor cells into normal BCF1 mice. Serum titers of anti-dsDNA antibodies were assessed by enzyme-linked immunosorbent assay (ELISA) and major histocompatibility complex (MHC) class II antigen expression on B cells were tested by flow cytometry. In addition, depositions of immunoglobulin (Ig) were examined by direct immunofluorescence staining on frozen kidney sections. RESULTS When (BALB/c x B6)F1 mice were injected with parental BALB/c lymphocytes, serum anti-dsDNA titer was significantly increased in association with nonspecific B-cell activation and IgG deposition in the glomerular basement membrane. In sharp contrast, none of these signs were observed in F1 mice, which were injected with CD28KO spleen cells. CONCLUSION The CD28-mediated T-cell costimulatory pathway plays a pivotal role in the development of polyclonal B-cell activation, autoantibody production, and an immune complex glomerulonephritis. We propose that CD28KO mice are useful clues in examining the pathogenesis of experimental lupus nephritis.
Collapse
Affiliation(s)
- S Ogawa
- The Research Institutes for Biological Sciences, Science University of Tokyo, Chiba, Japan
| | | | | | | | | | | |
Collapse
|
41
|
Horita S, Nitta K, Honda K, Yumura W, Nihei H. A simple histological method differentiating AL-type from AA-type amyloidosis. Nephron Clin Pract 2000; 78:240-2. [PMID: 9496753 DOI: 10.1159/000044926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Amyloidosis is a disease caused by deposition of amyloid protein in various tissues and organs, and is also an important cause of chronic renal failure, usually occurring within 3 years of the development of nephrotic syndrome. To date, 13 types of amyloid proteins have been identified in humans, regardless of systemic or localized amyloidosis. Amyloid proteins derived from serum amyloid A (AA), immunoglobulin light chains (AL), transthyretin, and β<sub>2</sub>-microglobulin are constituents in systemic amyloidosis. Despite the close histological resemblance of each amyloid deposit, the pathogenesis appears to differ according to individual amyloidosis.
Collapse
|
42
|
Nagata M, Horita S, Shu Y, Shibata S, Hattori M, Ito K, Watanabe T. Phenotypic characteristics and cyclin-dependent kinase inhibitors repression in hyperplastic epithelial pathology in idiopathic focal segmental glomerulosclerosis. J Transl Med 2000; 80:869-80. [PMID: 10879738 DOI: 10.1038/labinvest.3780091] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.2] [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: 11/08/2022] Open
Abstract
Hyperplastic glomerular epithelial lesion is an important determinant of the progression of idiopathic focal segmental glomerulosclerosis (FGS). The proliferation and differentiation of glomerular epithelial cells and parietal epithelial cells (PECs) are regulated differently by cyclin and cyclin-dependent kinase inhibitors (CKIs) during nephrogenesis. To access the cellular mechanism underlying epithelial hyperplasia in the development of FGS, the present study applied immunohistochemistry to 21 cases of FGS to demonstrate expression of cell-cycle molecules and phenotypic characterization in proliferative epithelial lesions in FGS. The materials included segmental sclerosis (18.1%), which was divided into monolayer epithelial lesions (64.6%) and cellular lesions (35.4%). All of the cellular lesions expressed cytokeratin, frequently with Ki-67 (82.4%) and less frequently with cyclin A (17.7%), but were invariably negative for podocyte markers (PHM-5 and synaptopodin) and CKIs (p27kip1 and p57kip2). Podocytes in nonsclerotic tuft in the same glomeruli with cellular lesions strongly expressed CKIs and podocyte markers. Moreover, electron microscopy showed that some large proliferating cells with prominent nucleoli have a broad cell base attached to Bowman's capsule. These cells have cilia and a junctional complex with neighboring hyperplastic cells, some of which directly cover the glomerular basement membrane. This suggests that cellular lesions are of PEC origin. Monolayer epithelial lesions also exclusively exhibited a PEC phenotype with reciprocal expression of podocyte markers and cytokeratin. In addition, CKIs are weakly expressed in monolayer epithelial lesions, suggesting a re-entry of cell-cycle quiescent. In conclusion, proliferation of PEC, sustained by repression of CKIs in nature and simultaneous activation of cyclin A, is the actual molecular background to the cellular lesions in FGS. Cellular lesions may result in monolayer epithelial lesions that retain the PEC phenotype and enter a common pathway to glomerulosclerosis.
Collapse
Affiliation(s)
- M Nagata
- Department of Pathology, Institute of Clinical Medicine, University of Tsukuba, Ibaraki, Japan.
| | | | | | | | | | | | | |
Collapse
|
43
|
Abstract
We report herein the case of a 69-year-old man with basaloid-squamous carcinoma (BSC) of the esophagus. To the best of our knowledge, this is the 60th case of BSC of the esophagus to be reported in Japan, and a review of the other 59 cases is presented after this case report. In our patient, endoscopic findings revealed a circumferential erosion in the middle intrathoracic esophagus (Im), and a protruding tumor with friable ulceration in the center of the erosion. A biopsy suggested that it was moderately differentiated squamous cell carcinoma (SCC), and a thoracoscopic total thoracic esophagectomy was performed. Histologically, the protruding-type lesion with ulceration was composed of BSC, and the circumferential 0 -I + IIc type lesion was composed of moderately differentiated SCC. The immunohistochemical findings of these resected specimens led us to suspect that the basal-layer-type SCC had transformed into BSC by undergoing differentiation and expansive proliferation.
Collapse
Affiliation(s)
- T Kato
- Department of Surgery, Hokkaido Gastroenterology Hospital, Hon-cho 1Jo 1Chome, Higashi-ku, Sapporo 065-0041, Japan
| | | | | | | | | | | | | |
Collapse
|
44
|
Matsugami K, Nitta K, Horita S, Honda K, Tanabe K, Toma H, Nihei H, Yamaguchi Y. Isolated ciclosporin-associated arteriopathy does not deteriorate residual renal function in patients with kidney transplantation. Nephron Clin Pract 2000; 84:295-6. [PMID: 10720911 DOI: 10.1159/000045600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
45
|
Ishizuka T, Hayashi T, Nakazawa H, Ito F, Nitta K, Horita S, Uchida K, Nihei H, Toma H. Serum vascular endothelial growth factor is a candidate biomarker of renal cell carcinoma in hemodialysis patients. Nephron Clin Pract 2000; 84:83-4. [PMID: 10644915 DOI: 10.1159/000045545] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
|
46
|
Nitta K, Horita S, Honda K, Uchida K, Watanabe T, Nihei H, Nagata M. Glomerular expression of cell-cycle-regulatory proteins in human crescentic glomerulonephritis. Virchows Arch 1999; 435:422-7. [PMID: 10526006 DOI: 10.1007/s004280050420] [Citation(s) in RCA: 34] [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: 11/25/2022]
Abstract
To elucidate the mechanism underlying crescentic formation, we assessed the phenotypic characterization and cell-cycle protein expression in human crescentic glomerulonephritis (CRGN). Kidney tissue specimens taken from CRGN patients (10 patients with pauci-immune type rapidly progressive glomerulonephritis (RPGN), 2 patients with Henoch-Schönlein purpura nephritis, and 1 patient with IgA nephropathy) were examined immunohistochemically. Most of the cellular components of the crescents expressed cytokeratin, whereas few cells expressed PHM-5. CD68-positive cells were minor components of cellular crescents, indicating that the major principal cellular component of the crescents is made up of cells with the parietal glomerular epithelial cell (PEC) phenotype. Additionally, serial section analysis revealed that Ki-67-positive cells in the crescents were frequently cyclin-A positive and Bcl-2 positive, but seldom cyclin-B(1) positive. Moreover, the expression of cyclin-dependent kinase inhibitor p27(Kip1) was low in the cellular crescents, despite being exclusively positive in podocytes within the same section. We concluded that the major component of the cellular crescents is made up of PECs and that apparent expression of cyclins and Bcl-2 and restrained expression of p27(Kip1) may be synergistically associated with the development of cellular crescents in human CRGN.
Collapse
Affiliation(s)
- K Nitta
- Department of Medicine, Kidney Center, Tokyo Women's Medical University, Tokyo, Japan
| | | | | | | | | | | | | |
Collapse
|
47
|
Hida Y, Morita T, Fujita M, Miyasaka Y, Horita S, Fujioka Y, Nagashima K, Katoh H. Clinical significance of hepatocyte growth factor and c-Met expression in extrahepatic biliary tract cancers. Oncol Rep 1999; 6:1051-6. [PMID: 10425302 DOI: 10.3892/or.6.5.1051] [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: 11/06/2022] Open
Abstract
Hepatocyte growth factor (HGF)/c-Met expression is known to be correlated with poor prognosis in several cancers. We investigated HGF/c-Met immunoreactivity and its correlation with clinical features in 51 patients with curatively resected extrahepatic biliary tract carcinoma. c-Met showed significant correlations with tumor location, T category, stage, perineural invasion and local recurrence. Overall survival in patients with HGF and c-Met immunopositivity was significantly worse than in those who were negative. Our findings suggest that HGF/c-Met play some roles in tumor development and that HGF/c-Met immunoreactivity could be a predictor of the mode of recurrence and poor prognosis.
Collapse
Affiliation(s)
- Y Hida
- Second Department of Surgery, School of Medicine, Hokkaido University, Kita-Ku, Sapporo 060-8638, Japan
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Nitta K, Uchida K, Kimata N, Honda K, Horita S, Hayashi T, Ishizuka T, Kobayashi H, Kawashima A, Yumura W, Nihei H. Increased serum levels of vascular endothelial growth factor in human crescentic glomerulonephritis. Clin Nephrol 1999; 52:76-82. [PMID: 10480217] [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: 02/13/2023] Open
Abstract
OBJECTIVE To investigate the serum levels of vascular endothelial growth factor (VEGF) in human crescentic glomerulonephritis (CRGN). METHODS The serum VEGF levels in CRGN patients were compared with those in healthy subjects and in various types of glomerulonephritis. In addition, we investigated the relationship between serum VEGF levels and creatinine levels (Scr) and pathological parameters. RESULTS The serum VEGF levels of the CRGN patients were significantly higher than in the healthy subjects and patients with MCNS, IgAN, and FGS. No correlation was found between serum VEGF levels and Scr in the RPGN patients. The serum VEGF levels in 6 CRGN patients had significantly decreased after 6 months of corticosteroid therapy. Moreover, there was a significant correlation between the serum VEGF levels and the crescent frequency or the grade of interstitial injury, and the rates of glomerular infiltration by macrophages. CONCLUSIONS In the CRGN patients, severe glomerular and interstitial damages would result in increased serum VEGF levels and corticosteroid therapy may exert its efficacy through reduction of serum VEGF levels.
Collapse
Affiliation(s)
- K Nitta
- Department of Medicine, Kidney Center, Tokyo Women's Medical University, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Honda K, Nitta K, Horita S, Yumura W, Nihei H, Nagai R, Ikeda K, Horiuchi S. Accumulation of advanced glycation end products in the peritoneal vasculature of continuous ambulatory peritoneal dialysis patients with low ultra-filtration. Nephrol Dial Transplant 1999; 14:1541-9. [PMID: 10383022 DOI: 10.1093/ndt/14.6.1541] [Citation(s) in RCA: 214] [Impact Index Per Article: 8.6] [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: 11/13/2022] Open
Abstract
BACKGROUND Ultra-filtration failure is a serious complication of long-term continuous ambulatory peritoneal dialysis (CAPD). This complication is related to histological changes of the peritoneum, i.e. severe interstitial fibrosis and microvascular sclerosis. Although their pathogenesis has not been elucidated yet, advanced glycation end products (AGEs) have been shown to accumulate in the peritoneal tissue of CAPD patients. METHODS Peritoneal biopsy specimens from 14 CAPD patients with low ultra-filtration (n = 9) and high ultra-filtration (n = 5) capacity were immunohistochemically investigated using a monoclonal antibody against AGEs (6D12). The severity of peritoneal fibrosis, microvascular sclerosis and intensity of AGE accumulation were semi-quantitatively evaluated. Peritoneal ultra-filtration capacity was evaluated by calculating daily ultrafiltration volume per body weight (UFV/BW) and D/D0 (glucose) of the peritoneal equilibration test. RESULTS In all patients with low ultra-filtration, AGE accumulated in the peritoneal fibrous tissue and microvascular walls. Remarkably, AGE accumulated more intensely in hyalinized fibrosis of small venular media. Extent of AGE accumulation in peritoneal interstitium and vascular walls correlated with the progression of interstitial fibrosis (rho = 0.727, P = 0.0088) and vascular sclerosis (rho = 0.915, P = 0.001). UFV/BW was inversely correlated to interstitial fibrosis (rho = -0.660, P = 0.0174), microvascular sclerosis (rho = -0.671, P = 0.0155) and microvascular AGE accumulation (rho = -0.678, P = 0.0145). CONCLUSIONS In CAPD patients, AGE formation in the peritoneum correlates with the development of severe interstitial fibrosis and microvascular sclerosis, which is associated clinically with impaired peritoneal ultra-filtration.
Collapse
Affiliation(s)
- K Honda
- Department of Medicine, Kidney Center, Tokyo Women's Medical University, Japan
| | | | | | | | | | | | | | | |
Collapse
|
50
|
Hida Y, Morita T, Fujita M, Miyasaka Y, Horita S, Fujioka Y, Nagashima K, Katoh H. Vascular endothelial growth factor expression is an independent negative predictor in extrahepatic biliary tract carcinomas. Anticancer Res 1999; 19:2257-60. [PMID: 10472340] [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: 02/13/2023]
Abstract
BACKGROUND Vascular endothelial growth factor (VEGF) is one of the most important factors for angiogenesis in various tumors. However, its clinical significance in extrahepatic biliary tract carcinoma remains unclear. MATERIALS AND METHODS To clarify the association of VEGF expression with the clinicopathological features of the disease, surgical specimens from 51 patients were examined for VEGF expression by immunohistochemistry. RESULTS Sixteen of 51 (31.4%) cases were positive for VEGF. VEGF immunoreactivity showed a tendency toward association with lymph node metastasis, M category and peritoneal recurrence (p = 0.059, 0.086 and 0.069, respectively). Overall survival in patients with VEGF positivity was significantly worse than in those with negativity (p = 0.033 by log-rank test). Multivariate Cox regression analysis revealed that VEGF expression was an independent negative predictor (p = 0.025). CONCLUSION VEGF immunoreactivity is an independent negative predictor in extrahepatic biliary tract carcinomas.
Collapse
Affiliation(s)
- Y Hida
- Second Department of Surgery, School of Medicine, Hokkaido University, Japan.
| | | | | | | | | | | | | | | |
Collapse
|