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Taguchi S, Azushima K, Yamaji T, Suzuki T, Abe E, Tanaka S, Hirota K, Tsukamoto S, Morita R, Kobayashi R, Kinguchi S, Yamashita A, Wakui H, Tamura K. Angiotensin II type 1 receptor-associated protein deletion combined with angiotensin II stimulation accelerates the development of diabetic kidney disease in mice on a C57BL/6 strain. Hypertens Res 2024; 47:55-66. [PMID: 37957242 DOI: 10.1038/s41440-023-01496-4] [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: 07/12/2023] [Revised: 10/09/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023]
Abstract
The progress in the research field of diabetic kidney disease (DKD) has been disturbed by the lack of reliable animal models. Angiotensin II (Ang II) type 1 receptor (AT1R)-associated protein (ATRAP) promotes internalization of AT1R and selectively inhibits pathological AT1R signaling. In this study, we investigated whether overactivation of the renin-angiotensin system (RAS) through a combination of ATRAP deletion with Ang II stimulation developed a progressive DKD model in C57BL/6 mice, which are resistant to the development of kidney injury. Eight-week-old male systemic ATRAP-knockout mice on the C57BL/6 strain (KO) and their littermate wild-type mice (Ctrl) were divided into five groups: 1) Ctrl, 2) Ctrl-streptozotocin (STZ), 3) KO-STZ, 4) Ctrl-STZ-Ang II, and 5) KO-STZ-Ang II. Ang II was administered for 6 weeks from 4 weeks after STZ administration. At 10 weeks after STZ administration, mice were euthanized to evaluate kidney injuries. Neither ATRAP deletion alone nor Ang II stimulation alone developed a progressive DKD model in STZ-induced diabetic C57BL/6 mice. However, a combination of ATRAP deletion with Ang II stimulation accelerated the development of DKD as manifested by overt albuminuria, glomerular hypertrophy, podocyte loss, mesangial expansion, kidney interstitial fibrosis and functional insufficiency, concomitant with increased angiotensinogen and AT1R expression in the kidneys. In STZ-induced diabetic C57BL/6 mice that are resistant to the development of kidney injury, the combination of ATRAP deletion and Ang II stimulation accelerates the development of DKD, which may be associated with intrarenal RAS overactivation.
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Affiliation(s)
- Shinya Taguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - Takahiro Yamaji
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore, Singapore
| | - Toru Suzuki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Eriko Abe
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shohei Tanaka
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Keigo Hirota
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shunichiro Tsukamoto
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ryutaro Morita
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ryu Kobayashi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Akio Yamashita
- Department of Investigative Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Tsukamoto S, Suzuki T, Wakui H, Uehara T, Ichikawa J, Okuda H, Haruhara K, Azushima K, Abe E, Tanaka S, Taguchi S, Hirota K, Kinguchi S, Yamashita A, Tamura T, Tamura K. Angiotensin II type 1 receptor-associated protein in immune cells: a possible key factor in the pathogenesis of visceral obesity. Metabolism 2023; 149:155706. [PMID: 37856903 DOI: 10.1016/j.metabol.2023.155706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 09/19/2023] [Accepted: 10/09/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND AND AIM Dysregulation of angiotensin II type 1 receptor-associated protein (ATRAP) expression in cardiovascular, kidney, and adipose tissues is involved in the pathology of hypertension, cardiac hypertrophy, atherosclerosis, kidney injury, and metabolic disorders. Furthermore, ATRAP is highly expressed in bone marrow-derived immune cells; however, the functional role of immune cell ATRAP in obesity-related pathology remains unclear. Thus, we sought to identify the pathophysiological significance of immune cell ATRAP in the development of visceral obesity and obesity-related metabolic disorders using a mouse model of diet-induced obesity. METHODS Initially, we examined the effect of high-fat diet (HFD)-induced obesity on the expression of immune cell ATRAP in wild-type mice. Subsequently, we conducted bone marrow transplantation to generate two types of chimeric mice: bone marrow wild-type chimeric (BM-WT) and bone marrow ATRAP knockout chimeric (BM-KO) mice. These chimeric mice were provided an HFD to induce visceral obesity, and then the effects of immune cell ATRAP deficiency on physiological parameters and adipose tissue in the chimeric mice were investigated. RESULTS In wild-type mice, body weight increase by HFD was associated with increased expression of immune cell ATRAP. In the bone marrow transplantation experiments, BM-KO mice exhibited amelioration of HFD-induced weight gain and visceral fat expansion with small adipocytes compared BM-WT mice. In addition, BM-KO mice on the HFD showed significant improvements in white adipose tissue metabolism, inflammation, glucose tolerance, and insulin resistance, compared with BM-WT mice on the HFD. Detailed analysis of white adipose tissue revealed significant suppression of HFD-induced activation of transforming growth factor-beta signaling, a key contributor to visceral obesity, via amelioration of CD206+ macrophage accumulation in the adipose tissue of BM-KO mice. This finding suggests a relevant mechanism for the anti-obesity phenotype in BM-KO mice on the HFD. Finally, transcriptome analysis of monocytes indicated the possibility of genetic changes, such as the enhancement of interferon-γ response at the monocyte level, affecting macrophage differentiation in BM-KO mice. CONCLUSION Collectively, our results indicate that ATRAP in bone marrow-derived immune cells plays a role in the pathogenesis of visceral obesity. The regulation of ATRAP expression in immune cells may be a key factor against visceral adipose obesity with metabolic disorders.
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Affiliation(s)
- Shunichiro Tsukamoto
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Toru Suzuki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - Tatsuki Uehara
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Juri Ichikawa
- Department of Immunology, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Hiroshi Okuda
- Department of Immunology, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - Kotaro Haruhara
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan; Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Eriko Abe
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shohei Tanaka
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shinya Taguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Keigo Hirota
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Akio Yamashita
- Department of Investigative Medicine Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Tomohiko Tamura
- Department of Immunology, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan; Advanced Medical Research Center, Yokohama City University, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Hirota K, Yamashita A, Abe E, Yamaji T, Azushima K, Tanaka S, Taguchi S, Tsukamoto S, Wakui H, Tamura K. miR-125a-5p/miR-125b-5p contributes to pathological activation of angiotensin II-AT1R in mouse distal convoluted tubule cells by the suppression of Atrap. J Biol Chem 2023; 299:105478. [PMID: 37981211 PMCID: PMC10755798 DOI: 10.1016/j.jbc.2023.105478] [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: 10/16/2023] [Revised: 11/06/2023] [Accepted: 11/10/2023] [Indexed: 11/21/2023] Open
Abstract
The renin-angiotensin system plays a crucial role in the regulation of blood pressure. Activation of the angiotensin II (Ang II)-Ang II type 1 receptor (AT1R) signaling pathway contributes to the pathogenesis of hypertension and subsequent organ damage. AT1R-associated protein (ATRAP) has been identified as an endogenous inhibitory protein of the AT1R pathological activation. We have shown that mouse Atrap (Atrap) represses various Ang II-AT1R-mediated pathologies, including hypertension in mice. The expression of human ATRAP (ATRAP)/Atrap can be altered in various pathological states in humans and mice, such as Ang II stimulation and serum starvation. However, the regulatory mechanisms of ATRAP/Atrap are not yet fully elucidated. miRNAs are 21 to 23 nucleotides of small RNAs that post-transcriptionally repress gene expression. Single miRNA can act on hundreds of target mRNAs, and numerous miRNAs have been identified as the Ang II-AT1R signaling-associated disease phenotype modulator, but nothing is known about the regulation of ATRAP/Atrap. In the present study, we identified miR-125a-5p/miR-125b-5p as the evolutionarily conserved miRNAs that potentially act on ATRAP/Atrap mRNA. Further analysis revealed that miR-125a-5p/miR-125b-5p can directly repress both ATRAP and Atrap. In addition, the inhibition of miR-125a-5p/miR-125b-5p resulted in the suppression of the Ang II-AT1R signaling in mouse distal convoluted tubule cells. Taken together, miR-125a-5p/miR-125b-5p activates Ang II-AT1R signaling by the suppression of ATRAP/Atrap. Our results provide new insights into the potential approaches for achieving the organ-protective effects by the repression of the miR-125 family associated with the enhancement of ATRAP/Atrap expression.
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Affiliation(s)
- Keigo Hirota
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Akio Yamashita
- Department of Investigative Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan.
| | - Eriko Abe
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Takahiro Yamaji
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shohei Tanaka
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shinya Taguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shunichiro Tsukamoto
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
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Tsukamoto S, Wakui H, Uehara T, Shiba Y, Azushima K, Abe E, Tanaka S, Taguchi S, Hirota K, Urate S, Suzuki T, Yamada T, Kinguchi S, Yamashita A, Tamura K. Combination of sacubitril/valsartan and blockade of the PI3K pathway enhanced kidney protection in a mouse model of cardiorenal syndrome. Eur Heart J Open 2023; 3:oead098. [PMID: 37941728 PMCID: PMC10630100 DOI: 10.1093/ehjopen/oead098] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 11/10/2023]
Abstract
Aims Angiotensin receptor-neprilysin inhibitor (ARNI) is an established treatment for heart failure. However, whether ARNI has renoprotective effects beyond renin-angiotensin system inhibitors alone in cardiorenal syndrome (CRS) has not been fully elucidated. Here, we examined the effects of ARNI on the heart and kidneys of CRS model mice with overt albuminuria and identified the mechanisms underlying ARNI-induced kidney protection. Methods and results C57BL6 mice were subjected to chronic angiotensin II infusion, nephrectomy, and salt loading (ANS); they developed CRS phenotypes and were divided into the vehicle treatment (ANS-vehicle), sacubitril/valsartan treatment (ANS-ARNI), and two different doses of valsartan treatment (ANS-VAL M, ANS-VAL H) groups. Four weeks after treatment, the hearts and kidneys of each group were evaluated. The ANS-vehicle group showed cardiac fibrosis, cardiac dysfunction, overt albuminuria, and kidney fibrosis. The ANS-ARNI group showed a reduction in cardiac fibrosis and cardiac dysfunction compared with the valsartan treatment groups. However, regarding the renoprotective effects characterized by albuminuria and fibrosis, ARNI was less effective than valsartan. Kidney transcriptomic analysis showed that the ANS-ARNI group exhibited a significant enhancement in the phosphoinositide 3-kinase (PI3K)-AKT signalling pathway compared with the ANS-VAL M group. Adding PI3K inhibitor treatment to ARNI ameliorated kidney injury to levels comparable with those of ANS-VAL M while preserving the superior cardioprotective effect of ARNI. Conclusion PI3K pathway activation has been identified as a key mechanism affecting remnant kidney injury under ARNI treatment in CRS pathology, and blockading the PI3K pathway with simultaneous ARNI treatment is a potential therapeutic strategy for treating CRS with overt albuminuria.
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Affiliation(s)
- Shunichiro Tsukamoto
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Tatsuki Uehara
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Yuka Shiba
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Eriko Abe
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Shohei Tanaka
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Shinya Taguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Keigo Hirota
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Shingo Urate
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Toru Suzuki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Takayuki Yamada
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
| | - Akio Yamashita
- Department of Investigative Medicine Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, 236-0004 Yokohama, Japan
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Tanaka S, Wakui H, Azushima K, Tsukamoto S, Yamaji T, Urate S, Suzuki T, Abe E, Taguchi S, Yamada T, Kobayashi R, Kanaoka T, Kamimura D, Kinguchi S, Takiguchi M, Funakoshi K, Yamashita A, Ishigami T, Tamura K. Effects of a High-Protein Diet on Kidney Injury under Conditions of Non-CKD or CKD in Mice. Int J Mol Sci 2023; 24:ijms24097778. [PMID: 37175483 PMCID: PMC10177820 DOI: 10.3390/ijms24097778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 05/15/2023] Open
Abstract
Considering the prevalence of obesity and global aging, the consumption of a high-protein diet (HPD) may be advantageous. However, an HPD aggravates kidney dysfunction in patients with chronic kidney disease (CKD). Moreover, the effects of an HPD on kidney function in healthy individuals are controversial. In this study, we employed a remnant kidney mouse model as a CKD model and aimed to evaluate the effects of an HPD on kidney injury under conditions of non-CKD and CKD. Mice were divided into four groups: a sham surgery (sham) + normal diet (ND) group, a sham + HPD group, a 5/6 nephrectomy (Nx) + ND group and a 5/6 Nx + HPD group. Blood pressure, kidney function and kidney tissue injury were compared after 12 weeks of diet loading among the four groups. The 5/6 Nx groups displayed blood pressure elevation, kidney function decline, glomerular injury and tubular injury compared with the sham groups. Furthermore, an HPD exacerbated glomerular injury only in the 5/6 Nx group; however, an HPD did not cause kidney injury in the sham group. Clinical application of these results suggests that patients with CKD should follow a protein-restricted diet to prevent the exacerbation of kidney injury, while healthy individuals can maintain an HPD without worrying about the adverse effects.
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Affiliation(s)
- Shohei Tanaka
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Shunichiro Tsukamoto
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Takahiro Yamaji
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Shingo Urate
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Toru Suzuki
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Eriko Abe
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Shinya Taguchi
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Takayuki Yamada
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
- Renal-Electrolyte Division, Department of Medicine, University of Pittsburgh, 3550 Terrace Street, Pittsburgh, PA 15261, USA
| | - Ryu Kobayashi
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Tomohiko Kanaoka
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Daisuke Kamimura
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Masahito Takiguchi
- Department of Neuroanatomy, School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Kengo Funakoshi
- Department of Neuroanatomy, School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Akio Yamashita
- Department of Investigative Medicine, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Nishiharacho, Okinawa 903-0215, Japan
| | - Tomoaki Ishigami
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
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Uehara T, Urate S, Wakui H, Tsukamoto S, Taguchi S, Tanaka S, Abe E, Suzuki T, Azushima K, Tamura K. PS-BPB05-5: KIDNEY ENHANCEMENT OF ANGIOTENSIN II TYPE 1 RECEPTOR-ASSOCIATED PROTEIN SUPPRESSES KIDNEY INFLAMMATION IN A MOUSE MODEL OF ARISTOLOCHIC ACID NEPHROPATHY. J Hypertens 2023. [DOI: 10.1097/01.hjh.0000915552.93026.dc] [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: 01/15/2023]
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Abe E, Fuwa TJ, Hoshi K, Saito T, Murakami T, Miyajima M, Ogawa N, Akatsu H, Hashizume Y, Hashimoto Y, Honda T. Expression of Transferrin Protein and Messenger RNA in Neural Cells from Mouse and Human Brain Tissue. Metabolites 2022; 12:metabo12070594. [PMID: 35888718 PMCID: PMC9318763 DOI: 10.3390/metabo12070594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/18/2022] [Accepted: 06/23/2022] [Indexed: 02/01/2023] Open
Abstract
Iron is an essential nutrient in the body. However, iron generates oxidative stress and hence needs to be bound to carrier proteins such as the glycoprotein transferrin (Tf) in body fluids. We previously reported that cerebrospinal fluid contains Tf glycan-isoforms that are derived from the brain, but their origins at the cellular level in the brain have not yet been elucidated. In the present report, we described the localization of Tf protein and mRNA in mouse and human brain tissue. In situ hybridization of mouse brain tissue revealed that Tf mRNA is expressed by different cell types such as epithelial cells in the choroid plexus, oligodendrocyte-like cells in the medulla, and neurons in the cortex, hippocampus, and basal ganglia. In contrast, Tf protein was barely detected by immunohistochemistry in hippocampal and some cortical neurons, but it was detected in other types of cells such as oligodendrocyte-like cells and choroid plexus epithelial cells. The results showed that Tf mRNA is expressed by neural cells, while Tf protein is expressed in different brain regions, though at very low levels in hippocampal neurons. Low Tf level in the hippocampus may increases susceptibility to iron-induced oxidative stress, and account for neuron death in neurodegenerative diseases.
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Affiliation(s)
- Eriko Abe
- Department of Biochemistry, Fukushima Medical University, Fukushima 960-1295, Japan; (E.A.); (T.J.F.); (K.H.)
| | - Takashi J. Fuwa
- Department of Biochemistry, Fukushima Medical University, Fukushima 960-1295, Japan; (E.A.); (T.J.F.); (K.H.)
| | - Kyoka Hoshi
- Department of Biochemistry, Fukushima Medical University, Fukushima 960-1295, Japan; (E.A.); (T.J.F.); (K.H.)
| | - Takashi Saito
- Department of Neurocognitive Science, Nagoya City University, Aichi 467-8601, Japan;
| | - Takenobu Murakami
- Division of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Tottori 683-8504, Japan;
| | - Masakazu Miyajima
- Department of Neurosurgery, Juntendo University, Tokyo 113-8421, Japan;
| | - Norihiro Ogawa
- Department of Neuropathology, Fukushimura Hospital, Aichi 467-8601, Japan; (N.O.); (H.A.); (Y.H.)
| | - Hiroyasu Akatsu
- Department of Neuropathology, Fukushimura Hospital, Aichi 467-8601, Japan; (N.O.); (H.A.); (Y.H.)
| | - Yoshio Hashizume
- Department of Neuropathology, Fukushimura Hospital, Aichi 467-8601, Japan; (N.O.); (H.A.); (Y.H.)
| | - Yasuhiro Hashimoto
- Department of Forensic Medicine, Fukushima Medical University, Fukushima 960-1295, Japan;
- Correspondence:
| | - Takashi Honda
- Department of Forensic Medicine, Fukushima Medical University, Fukushima 960-1295, Japan;
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8
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Urate S, Wakui H, Azushima K, Yamaji T, Suzuki T, Abe E, Tanaka S, Taguchi S, Tsukamoto S, Kinguchi S, Uneda K, Kanaoka T, Atobe Y, Funakoshi K, Yamashita A, Tamura K. Aristolochic Acid Induces Renal Fibrosis and Senescence in Mice. Int J Mol Sci 2021; 22:ijms222212432. [PMID: 34830314 PMCID: PMC8618437 DOI: 10.3390/ijms222212432] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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] [Received: 11/02/2021] [Revised: 11/12/2021] [Accepted: 11/12/2021] [Indexed: 01/02/2023] Open
Abstract
The kidney is one of the most susceptible organs to age-related impairments. Generally, renal aging is accompanied by renal fibrosis, which is the final common pathway of chronic kidney diseases. Aristolochic acid (AA), a nephrotoxic agent, causes AA nephropathy (AAN), which is characterized by progressive renal fibrosis and functional decline. Although renal fibrosis is associated with renal aging, whether AA induces renal aging remains unclear. The aim of the present study is to investigate the potential use of AAN as a model of renal aging. Here, we examined senescence-related factors in AAN models by chronically administering AA to C57BL/6 mice. Compared with controls, the AA group demonstrated aging kidney phenotypes, such as renal atrophy, renal functional decline, and tubulointerstitial fibrosis. Additionally, AA promoted cellular senescence specifically in the kidneys, and increased renal p16 mRNA expression and senescence-associated β-galactosidase activity. Furthermore, AA-treated mice exhibited proximal tubular mitochondrial abnormalities, as well as reactive oxygen species accumulation. Klotho, an antiaging gene, was also significantly decreased in the kidneys of AA-treated mice. Collectively, the results of the present study indicate that AA alters senescence-related factors, and that renal fibrosis is closely related to renal aging.
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MESH Headings
- Aging/drug effects
- Aging/genetics
- Animals
- Aristolochic Acids/pharmacology
- Collagen/agonists
- Collagen/genetics
- Collagen/metabolism
- Cyclin-Dependent Kinase Inhibitor p16/genetics
- Cyclin-Dependent Kinase Inhibitor p16/metabolism
- Disease Models, Animal
- Fibrosis
- Gene Expression Regulation
- Humans
- Kidney/drug effects
- Kidney/metabolism
- Kidney/pathology
- Klotho Proteins/genetics
- Klotho Proteins/metabolism
- Male
- Mice
- Mice, Inbred C57BL
- Mitochondria/drug effects
- Mitochondria/metabolism
- Mitochondria/pathology
- Nephritis, Interstitial/chemically induced
- Nephritis, Interstitial/genetics
- Nephritis, Interstitial/metabolism
- Nephritis, Interstitial/pathology
- Reactive Oxygen Species/agonists
- Reactive Oxygen Species/metabolism
- Renal Insufficiency, Chronic/chemically induced
- Renal Insufficiency, Chronic/genetics
- Renal Insufficiency, Chronic/metabolism
- Renal Insufficiency, Chronic/pathology
- Signal Transduction
- Transforming Growth Factor beta/agonists
- Transforming Growth Factor beta/genetics
- Transforming Growth Factor beta/metabolism
- beta-Galactosidase/genetics
- beta-Galactosidase/metabolism
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Affiliation(s)
- Shingo Urate
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
- Correspondence: ; Tel.: +81-45-787-2635
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
| | - Takahiro Yamaji
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore;
| | - Toru Suzuki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
| | - Eriko Abe
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
| | - Shohei Tanaka
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
| | - Shinya Taguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
| | - Shunichiro Tsukamoto
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
| | - Kazushi Uneda
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
| | - Tomohiko Kanaoka
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
| | - Yoshitoshi Atobe
- Department of Neuroanatomy, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (Y.A.); (K.F.)
| | - Kengo Funakoshi
- Department of Neuroanatomy, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (Y.A.); (K.F.)
| | - Akio Yamashita
- Department of Investigative Medicine, Graduate School of Medicine, University of the Ryukyus, 207 Uehara, Okinawa 903-0215, Japan;
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan; (S.U.); (K.A.); (T.S.); (E.A.); (S.T.); (S.T.); (S.T.); (S.K.); (K.U.); (T.K.); (K.T.)
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9
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Tsukamoto S, Wakui H, Azushima K, Yamaji T, Urate S, Suzuki T, Abe E, Tanaka S, Taguchi S, Yamada T, Kinguchi S, Kamimura D, Yamashita A, Sano D, Nakano M, Hashimoto T, Tamura K. Tissue-specific expression of the SARS-CoV-2 receptor, angiotensin-converting enzyme 2, in mouse models of chronic kidney disease. Sci Rep 2021; 11:16843. [PMID: 34413390 PMCID: PMC8377123 DOI: 10.1038/s41598-021-96294-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 08/04/2021] [Indexed: 02/07/2023] Open
Abstract
Elevated angiotensin-converting enzyme 2 (ACE2) expression in organs that are potential targets of severe acute respiratory syndrome coronavirus 2 may increase the risk of coronavirus disease 2019 (COVID-19) infection. Previous reports show that ACE2 alter its tissue-specific expression patterns under various pathological conditions, including renal diseases. Here, we examined changes in pulmonary ACE2 expression in two mouse chronic kidney disease (CKD) models: adenine-induced (adenine mice) and aristolochic acid-induced (AA mice). We also investigated changes in pulmonary ACE2 expression due to renin-angiotensin system (RAS) blocker (olmesartan) treatment in these mice. Adenine mice showed significant renal functional decline and elevated blood pressure, compared with controls. AA mice also showed significant renal functional decline, compared with vehicles; blood pressure did not differ between groups. Renal ACE2 expression was significantly reduced in adenine mice and AA mice; pulmonary expression was unaffected. Olmesartan attenuated urinary albumin excretion in adenine mice, but did not affect renal or pulmonary ACE2 expression levels. The results suggest that the risk of COVID-19 infection may not be elevated in patients with CKD because of their stable pulmonary ACE2 expression. Moreover, RAS blockers can be used safely in treatment of COVID-19 patients with CKD.
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Affiliation(s)
- Shunichiro Tsukamoto
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Takahiro Yamaji
- Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore, Singapore
| | - Shingo Urate
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Toru Suzuki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Eriko Abe
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Shohei Tanaka
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Shinya Taguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Takayuki Yamada
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.,Department of Medicine, Mount Sinai Beth Israel, New York, NY, USA
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Daisuke Kamimura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Akio Yamashita
- Department of Molecular Biology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Daisuke Sano
- Department of Otorhinolaryngology, Head and Neck Surgery, School of Medicine, Yokohama City University, Yokohama, Japan
| | - Masayuki Nakano
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Tatsuo Hashimoto
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.,Internal Medicine, Kanagawa Dental University, Yokosuka, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan.
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10
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Monnet P, Rodriguez C, Gaudin O, Cirotteau P, Papouin B, Dereure O, Tetart F, Lalevee S, Colin A, Lebrun-Vignes B, Abe E, Alvarez JC, Demontant V, Gricourt G, de Prost N, Barau C, Chosidow O, Wolkenstein P, Hue S, Ortonne N, Milpied B, Ingen-Housz-Oro S. Towards a better understanding of adult idiopathic epidermal necrolysis: a retrospective study of 19 cases. J Eur Acad Dermatol Venereol 2021; 35:1569-1576. [PMID: 33834541 DOI: 10.1111/jdv.17274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 03/24/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND Most cases of Stevens-Johnson syndrome and toxic epidermal necrolysis are drug-induced. A small subset of cases remain with unknown aetiology (idiopathic epidermal necrolysis [IEN]). OBJECTIVE We sought to better describe adult IEN and understand the aetiology. METHODS This retrospective study was conducted in 4 centres of the French national reference centre for epidermal necrolysis. Clinical data were collected for the 19 adults hospitalized for IEN between January 2015 and December 2019. Wide toxicology analysis of blood samples was performed. Histology of IEN cases was compared with blinding to skin biopsies of drug-induced EN (DIEN, 'controls'). Available baseline skin biopsies were analysed by shotgun metagenomics and transcriptomics and compared to controls. RESULTS IEN cases represented 15.6% of all EN cases in these centres. The median age of patients was 38 (range 16-51) years; 68.4% were women. Overall, 63.2% (n = 12) of cases required intensive care unit admission and 15.8% (n = 3) died at the acute phase. Histology showed the same patterns of early- to late-stage EN with no difference between DIEN and IEN cases. One toxicology analysis showed unexpected traces of carbamazepine; results for other cases were negative. Metagenomics analysis revealed no unexpected pathological microorganism. Transcriptomic analysis highlighted a different pro-apoptotic pathway in IEN compared to DIEN, with an overexpression of apoptosis effectors TWEAK/TRAIL. CONCLUSIONS IEN affects young people and is a severe form of EN. A large toxicologic investigation is warranted. Different pathways seem involved in IEN and DIEN, leading to the same apoptotic effect, but the primary trigger remains unknown.
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Affiliation(s)
- P Monnet
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France
| | - C Rodriguez
- Microbiology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,INSERM U955, Université Paris Est Créteil Val de Marne, UPEC, Créteil, France.,Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France
| | - O Gaudin
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France
| | - P Cirotteau
- Dermatology Department, Saint André Hospital, Bordeaux, France
| | - B Papouin
- Pathology Department, AP-HP, Henri Mondor Hospital, Créteil, France
| | - O Dereure
- Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France.,Dermatology Department, Saint Eloi Hospital, Montpellier, France
| | - F Tetart
- Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France.,Dermatology Department, Charles Nicole Hospital, Rouen, France
| | - S Lalevee
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,Immunology Department, INSERM, Unité U955, Institut Mondor de Recherche Biomédicale, AP-HP, Henri Mondor Hospital, Créteil, France
| | - A Colin
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France
| | - B Lebrun-Vignes
- Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France.,Pharmacovigilance Department, AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - E Abe
- Pharmacology and Toxicology Department, AP-HP, Raymond Poincaré Hospital, Garches, France
| | - J-C Alvarez
- Pharmacology and Toxicology Department, AP-HP, Raymond Poincaré Hospital, Garches, France
| | - V Demontant
- Microbiology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,INSERM U955, Université Paris Est Créteil Val de Marne, UPEC, Créteil, France
| | - G Gricourt
- Microbiology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,INSERM U955, Université Paris Est Créteil Val de Marne, UPEC, Créteil, France
| | - N de Prost
- Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France.,Intensive Care Unit, AP-HP, Henri Mondor Hospital, Créteil, France.,Université Paris Est Créteil Val de Marne, UPEC, Créteil, France
| | - C Barau
- Clinical Investigation Center, Henri Mondor Hospital, Créteil, France
| | - O Chosidow
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France.,Université Paris Est Créteil Val de Marne, UPEC, Créteil, France
| | - P Wolkenstein
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France.,Université Paris Est Créteil Val de Marne, UPEC, Créteil, France
| | - S Hue
- Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France.,Immunology Department, INSERM, Unité U955, Institut Mondor de Recherche Biomédicale, AP-HP, Henri Mondor Hospital, Créteil, France.,Université Paris Est Créteil Val de Marne, UPEC, Créteil, France
| | - N Ortonne
- Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France.,Pathology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,Université Paris Est Créteil Val de Marne, UPEC, Créteil, France
| | - B Milpied
- Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France.,Dermatology Department, Saint André Hospital, Bordeaux, France
| | - S Ingen-Housz-Oro
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,Reference Center for Toxic Bullous Diseases and Severe Drug Reactions TOXIBUL, Créteil, France.,Univ Paris Est Créteil EpidermE, Créteil, France
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11
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Ishii T, Kumagae T, Wakui H, Urate S, Tanaka S, Abe E, Suzuki T, Yamaji T, Kinguchi S, Kobayashi R, Haruhara K, Nakamura T, Kobayashi S, Tamura K. Tissue xanthine oxidoreductase activity in a mouse model of aristolochic acid nephropathy. FEBS Open Bio 2021; 11:507-518. [PMID: 33448693 PMCID: PMC7876505 DOI: 10.1002/2211-5463.13083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 12/02/2020] [Accepted: 12/24/2020] [Indexed: 01/09/2023] Open
Abstract
Xanthine oxidoreductase (XOR) is a critical enzyme in purine metabolism and uric acid production, and its levels are reported to increase during stress, thereby promoting organ damage. Herein, we investigated the activity of XOR in a mouse model of aristolochic acid I (AA)-induced nephropathy, a type of nephrotoxic chronic kidney disease (CKD). A persistent decrease in renal function was observed in mice up to 4 weeks after 4 weeks of AA (2.5 mg kg-1 ) administration. Renal histology revealed an increase in tubular interstitial fibrosis over time. Although AA administration did not change XOR activity in the plasma, heart, liver, or muscle, XOR activity was persistently increased in renal tissue. Our results suggest that the renal tissue-specific increase in XOR activity is involved in the progression of tubulo-interstitial disorders, specifically fibrosis.
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Affiliation(s)
- Takeo Ishii
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan.,Department of Medicine, Yokohama Daiichi Hospital, Kanagawa, Japan
| | - Tomohiro Kumagae
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan.,Department of General Internal Medicine, Shonan Kamakura General Hospital, Kanagawa, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Shingo Urate
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Shohei Tanaka
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Eriko Abe
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Toru Suzuki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Takahiro Yamaji
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Ryu Kobayashi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Kotaro Haruhara
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Takashi Nakamura
- Medical Affairs Department, Sanwa Kagaku Kenkusho., Co., Ltd, Aichi, Japan
| | - Shuzo Kobayashi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan.,Department of General Internal Medicine, Shonan Kamakura General Hospital, Kanagawa, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
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12
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Yamada T, Wakabayashi M, Bhalla A, Chopra N, Miyashita H, Mikami T, Ueyama H, Fujisaki T, Saigusa Y, Yamaji T, Azushima K, Urate S, Suzuki T, Abe E, Wakui H, Tamura K. Cardiovascular and renal outcomes with SGLT-2 inhibitors versus GLP-1 receptor agonists in patients with type 2 diabetes mellitus and chronic kidney disease: a systematic review and network meta-analysis. Cardiovasc Diabetol 2021; 20:14. [PMID: 33413348 PMCID: PMC7792332 DOI: 10.1186/s12933-020-01197-z] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/14/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Emerging evidence suggests that sodium-glucose cotransporter-2 (SGLT-2) inhibitors and glucagon-like peptide-1 receptor agonists (GLP-1 RAs) are associated with decreased risk of cardiovascular and renal events in type 2 diabetes mellitus (DM) patients. However, no study to date has compared the effect of SGLT-2 inhibitors with that of GLP-1 RAs in type 2 DM patients with chronic kidney disease (CKD). We herein investigated the benefits of SGLT-2 inhibitors and GLP-1 RAs in CKD patients. METHODS We performed a systematic literature search through November 2020. We selected randomized control trials that compared the risk of major adverse cardiovascular events (MACE) and a composite of renal outcomes. We performed a network meta-analysis to compare SGLT-2 inhibitors with GLP-1 RAs indirectly. Risk ratios (RRs) with corresponding 95% confidence intervals (CI) were synthesized. RESULTS Thirteen studies were selected with a total of 32,949 patients. SGLT-2 inhibitors led to a risk reduction in MACE and renal events (RR [95% CI]; 0.85 [0.75-0.96] and 0.68 [0.59-0.78], respectively). However, GLP-1 RAs did not reduce the risk of cardiovascular or renal adverse events (RR 0.91 [0.80-1.04] and 0.86 [0.72-1.03], respectively). Compared to GLP-1 RAs, SGLT-2 inhibitors did not demonstrate a significant difference in MACE (RR 0.94 [0.78-1.12]), while SGLT-2 inhibitors were associated with a lower risk of renal events compared to GLP-1 RAs (RR 0.79 [0.63-0.99]). A sensitivity analysis revealed that GLP-1 analogues significantly decreased MACE when compared to placebo treatment (RR 0.81 [0.69-0.95]), while exendin-4 analogues did not (RR 1.03 [0.88-1.20]). CONCLUSIONS In patients with type 2 DM and CKD, SGLT-2 inhibitors were associated with a decreased risk of cardiovascular and renal events, but GLP-1 RAs were not. SGLT-2 inhibitors significantly decreased the risk of renal events compared to GLP-1 RAs. Among GLP-1 RAs, GLP-1 analogues showed a positive impact on cardiovascular and renal outcomes, while exendin-4 analogues did not.
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Affiliation(s)
- Takayuki Yamada
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3 Chome-9 Fukuura, Kanazawa Ward, Yokohama, Kanagawa, 236-0004, Japan
| | - Mako Wakabayashi
- Department of Medicine, Nippon Medical School Hospital, Tokyo, Japan
| | - Abhinav Bhalla
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Nitin Chopra
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Hirotaka Miyashita
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Takahisa Mikami
- Department of Neurology, Tufts Medical Center, Boston, MA, USA
| | - Hiroki Ueyama
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Tomohiro Fujisaki
- Department of Medicine, Mount Sinai Morningside and West, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Yusuke Saigusa
- Department of Biostatistics, Yokohama City University School of Medicine, Yokohama, Japan
| | - Takahiro Yamaji
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3 Chome-9 Fukuura, Kanazawa Ward, Yokohama, Kanagawa, 236-0004, Japan
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3 Chome-9 Fukuura, Kanazawa Ward, Yokohama, Kanagawa, 236-0004, Japan
| | - Shingo Urate
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3 Chome-9 Fukuura, Kanazawa Ward, Yokohama, Kanagawa, 236-0004, Japan
| | - Toru Suzuki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3 Chome-9 Fukuura, Kanazawa Ward, Yokohama, Kanagawa, 236-0004, Japan
| | - Eriko Abe
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3 Chome-9 Fukuura, Kanazawa Ward, Yokohama, Kanagawa, 236-0004, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3 Chome-9 Fukuura, Kanazawa Ward, Yokohama, Kanagawa, 236-0004, Japan.
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, 3 Chome-9 Fukuura, Kanazawa Ward, Yokohama, Kanagawa, 236-0004, Japan
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Martin M, Abe E, Alvarez JC. Intoxication aiguë au sulfate de cuivre après administration par voie rectale. Toxicologie Analytique et Clinique 2020. [DOI: 10.1016/j.toxac.2020.10.012] [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: 10/23/2022]
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14
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Yamada T, Ueyama H, Chopra N, Yamaji T, Azushima K, Kobayashi R, Kinguchi S, Urate S, Suzuki T, Abe E, Saigusa Y, Wakui H, Partridge P, Burger A, Bravo CA, Rodriguez MA, Ivey-Miranda J, Tamura K, Testani J, Coca S. Systematic Review of the Association Between Worsening Renal Function and Mortality in Patients With Acute Decompensated Heart Failure. Kidney Int Rep 2020; 5:1486-1494. [PMID: 32954072 PMCID: PMC7486197 DOI: 10.1016/j.ekir.2020.06.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/05/2020] [Accepted: 06/24/2020] [Indexed: 12/25/2022] Open
Abstract
Introduction Outcomes in acute decompensated heart failure (ADHF) have remained poor. Worsening renal function (WRF) is common among patients with ADHF. However, the impact of WRF on the prognosis is controversial. We hypothesized that in patients with ADHF, the achievement of concomitant decongestion would diminish the signal for harm associated with WRF. Methods We performed a systematic search of PubMed, EMBASE, and the Cochrane Library up to December 2019 for studies that assessed signs of decongestion in patients with WRF during ADHF admission. The primary outcome was all-cause mortality and heart transplantation. Results Thirteen studies were selected with a pooled population of 8138 patients. During the follow-up period of 60–450 days, 19.2% of patients died. Unstratified, patients with WRF versus no WRF had a higher risk for mortality (odds ratio [OR], 1.71 [95% confidence interval {CI}, 1.45–2.01]; P < 0.0001). However, patients who achieved decongestion had a similar prognosis (OR, 1.15 [95% CI, 0.89–1.49]; P = 0.30). Moreover, patients with WRF who achieved decongestion had a better prognosis compared with those without WRF or decongestion (OR, 0.63 [95% CI, 0.46–0.86]; P = 0.004). This tendency persisted for the sensitivity analyses. Conclusions Decongestion is a powerful effect modifier that attenuates harmful associations of WRF with mortality. Future studies should not assess WRF as an endpoint without concomitant assessment of achieved volume status.
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Affiliation(s)
- Takayuki Yamada
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hiroki Ueyama
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Nitin Chopra
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Takahiro Yamaji
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kengo Azushima
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan.,Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore
| | - Ryu Kobayashi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Sho Kinguchi
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Shingo Urate
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Toru Suzuki
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Eriko Abe
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yusuke Saigusa
- Department of Biostatistics, Yokohama City University School of Medicine, Yokohama, Japan
| | - Hiromichi Wakui
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Paulina Partridge
- College of Arts and Sciences, University of Miami, Coral Gables, Florida, USA
| | - Alfred Burger
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Claudio A Bravo
- Department of Medicine, Division of Cardiology, Columbia University Medical Center, New York, New York, USA
| | - Maria A Rodriguez
- Department of Medicine, Division of Cardiology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Juan Ivey-Miranda
- Cardiology Hospital, XXI Century National Medical Center, Mexican Social Security Institute, Mexico City, Mexico
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Jeffery Testani
- Section of Cardiovascular Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Steven Coca
- Division of Nephrology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Nutahara E, Abe E, Uno S, Ishibashi Y, Watanabe T, Hayashi M, Okino N, Ito M. The glycerol-3-phosphate acyltransferase PLAT2 functions in the generation of DHA-rich glycerolipids in Aurantiochytrium limacinum F26-b. PLoS One 2019; 14:e0211164. [PMID: 30699157 PMCID: PMC6353168 DOI: 10.1371/journal.pone.0211164] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 01/08/2019] [Indexed: 11/18/2022] Open
Abstract
Thraustochytrids possess docosahexaenoic acid (DHA, 22:6n-3) as acyl chain(s) of triacylglycerol (TG) and phosphatidylcholine (PC), some of which contain multiple DHAs. However, little is known about how these DHA-rich glycerolipids are produced in thraustochytrids. In this study, we identified PLAT2 in Aurantiochytrium limacinum F26-b as a glycerol-3-phosphate (G3P) acyltransferase (GPAT) by heterologous expression of the gene in budding yeast. Subsequently, we found that GPAT activity was reduced by disruption of the PLAT2 gene in A. limacinum, resulting in a decrease in DHA-containing lysophosphatidic acid (LPA 22:6). Conversely, overexpression of PLAT2 increased both GPAT activity and LPA 22:6. These results indicate that PLAT2 is a GPAT that transfers DHA to G3P in vivo as well as in vitro. Overexpression of the PLAT2 gene increased the production of a two DHA-containing diacylglycerol (DG 44:12), followed by an increase in the three DHA-containing TG (TG 66:18), two-DHA-containing TG (TG 60:12), and two DHA-containing PC (PC 44:12). However, overexpression of PLAT2 did not increase DHA-free DG (DG32:0), which was preferentially converted to three 16:0-containing TG (TG 48:0) but not two 16:0-containing PC (PC 32:0). Collectively, we revealed that DHA-rich glycerolipids are produced from a precursor, LPA 22:6, which is generated by incorporating DHA to G3P by PLAT2 in the A. limacinum.
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Affiliation(s)
- Eri Nutahara
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Moto-oka, Nishi-ku, Fukuoka, Japan
| | - Eriko Abe
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Moto-oka, Nishi-ku, Fukuoka, Japan
| | - Shinya Uno
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Moto-oka, Nishi-ku, Fukuoka, Japan
| | - Yohei Ishibashi
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Moto-oka, Nishi-ku, Fukuoka, Japan
| | - Takashi Watanabe
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Moto-oka, Nishi-ku, Fukuoka, Japan
| | - Masahiro Hayashi
- Department of Marine Biology and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, 1–1 Gakuen-Kibanadai-Nishi, Miyazaki, Japan
| | - Nozomu Okino
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Moto-oka, Nishi-ku, Fukuoka, Japan
| | - Makoto Ito
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Moto-oka, Nishi-ku, Fukuoka, Japan
- Innovative Bio-architecture Center, Kyushu University, Moto-oka, Nishi-ku, Fukuoka, Japan
- * E-mail:
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Nakano T, Saito H, Tanaka K, Shioi M, Oshikane T, Maruyama K, Ohta A, Kaidu M, Abe E, Aoyama H. Risk Factors for Early Cognitive Deterioration after Whole-Brain Radiation Therapy for Brain Metastasis. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.966] [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: 10/28/2022]
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17
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Abe E, Ikeda K, Nutahara E, Hayashi M, Yamashita A, Taguchi R, Doi K, Honda D, Okino N, Ito M. Correction: Novel Lysophospholipid Acyltransferase PLAT1 of Aurantiochytrium limacinum F26-b Responsible for Generation of Palmitate-Docosahexaenoate-Phosphatidylcholine and Phosphatidylethanolamine. PLoS One 2018; 13:e0203016. [PMID: 30138425 PMCID: PMC6107251 DOI: 10.1371/journal.pone.0203016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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18
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Watanabe T, Sakiyama R, Iimi Y, Sekine S, Abe E, Nomura KH, Nomura K, Ishibashi Y, Okino N, Hayashi M, Ito M. Regulation of TG accumulation and lipid droplet morphology by the novel TLDP1 in Aurantiochytrium limacinum F26-b. J Lipid Res 2017; 58:2334-2347. [PMID: 29025869 DOI: 10.1194/jlr.m079897] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 10/03/2017] [Indexed: 11/20/2022] Open
Abstract
Thraustochytrids are marine single-cell protists that produce large amounts of PUFAs, such as DHA. They accumulate PUFAs in lipid droplets (LDs), mainly as constituent(s) of triacylglycerol (TG). We identified a novel protein in the LD fraction of Aurantiochytrium limacinum F26-b using 2D-difference gel electrophoresis. The protein clustered with orthologs of thraustochytrids; however, the cluster was evolutionally different from known PAT family proteins or plant LD protein; thus, we named it thraustochytrid-specific LD protein 1 (TLDP1). TLDP1 surrounded LDs when expressed as a GFP-tagged form. Disruption of the tldp1 gene decreased the content of TG and number of LDs per cell; however, irregular and unusually large LDs were generated in tldp1-deficient mutants. Although the level of TG synthesis was unchanged by the disruption of tldp1, the level of TG degradation was higher in tldp1-deficient mutants than in the WT. These phenotypic abnormalities in tldp1-deficient mutants were restored by the expression of tldp1 These results indicate that TLDP1 is a thraustochytrid-specific LD protein and regulates the TG accumulation and LD morphology in A. limacinum F26-b.
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Affiliation(s)
- Takashi Watanabe
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Ryo Sakiyama
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Yuya Iimi
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Satomi Sekine
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Eriko Abe
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuko H Nomura
- Department of Biological Sciences, Faculty of Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuya Nomura
- Department of Biological Sciences, Faculty of Sciences, Kyushu University, Fukuoka, Japan
| | - Yohei Ishibashi
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Nozomu Okino
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Masahiro Hayashi
- Department of Marine Biology and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Makoto Ito
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan .,Innovative Bio-architecture Center, Kyushu University, Fukuoka, Japan
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Takahashi H, Tanabe S, Saito H, Ohta A, Nakano T, Sasamoto R, Utsunomiya S, Abe E, Tanaka K, Kushima N, Maruyama K, Shioi M, Kaidu M, Aoyama H. Decision Criteria for the Selection Between 3DCRT and VMAT in High-Grade Gliomas Based on the Normal Tissue Complication Probability of Normal Brain. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.861] [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: 11/27/2022]
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20
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Kaidu M, Tanaka K, Nakano T, Maruyama K, Saito H, Shioi M, Utsunomiya S, Tanabe S, Takahashi H, Ohta A, Abe E, Sasamoto R, Aoyama H. Salvage High-Dose-Rate Brachytherapy for Locally Recurrent Prostatic Cancer after Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1187] [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: 10/18/2022]
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21
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Uchida S, Suzuki K, Uno M, Nozaki F, Li CP, Abe E, Yamauchi T, Horiuchi S, Kamo M, Hattori K, Nagashima Y. Mucin-poor and aggressive mucinous tubular and spindle cell carcinoma of the kidney: Two case reports. Mol Clin Oncol 2017; 7:777-782. [PMID: 29075488 PMCID: PMC5649005 DOI: 10.3892/mco.2017.1400] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 08/28/2017] [Indexed: 11/16/2022] Open
Abstract
Mucinous tubular and spindle cell carcinoma (MTSCC) is a relatively rare renal epithelial neoplasm. Although MTSCC is considered to be a low-grade and indolent neoplasm, aggressive cases have been recently reported. The present study discussed two additional cases of high-grade MTSCC causing multiple distant metastases with a fatal course. In case 1, a 71-year-old patient presented with hematuria and pyuria. Computed tomography (CT) scan of the right kidney revealed a mass lesion, for which partial nephrectomy was performed. However, a follow-up CT imaging revealed distant metastases in the liver, the paraaortic lymph nodes and the bone. Despite molecular targeted therapy and irradiation, the patient succumbed due to tumor progression. In case 2, a 64-year-old patient presented with an incidentally identified mass lesion in the right kidney. A laparoscopic nephrectomy was performed, and a follow-up CT imaging revealed metastases in the skin and lungs. The cytology of pleural effusion revealed pleuritis carcinomatosa. Histologically, both cases were diagnosed as mucin-poor MTSCC with high-grade transformation, which comprised uniform tumor cells primarily forming slender tubules. The tumors contained low- and high-grade regions. In addition, venous invasion and necrosis were observed. The tumor cells also demonstrated increased Ki-67 labeling indices and cellular tumor antigen p53 (p53) nuclear accumulation. High-grade transformation, large tumor size, necrosis, venous invasion, high Ki-67 labeling index and p53 nuclear accumulation are generally predictive findings for aggressive behavior of malignant tumors. In the current report, it was emphasized that MTSCC possesses a wide spectrum of clinicopathological features. Thus, careful postoperative investigation is required for MTSCC with high-grade elements due to its aggressive nature.
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Affiliation(s)
- Shiro Uchida
- Department of Diagnostic Pathology, St. Luke's International Hospital, Tokyo, Japan
| | - Koyu Suzuki
- Department of Diagnostic Pathology, St. Luke's International Hospital, Tokyo, Japan
| | - Mieko Uno
- Department of Diagnostic Pathology, St. Luke's International Hospital, Tokyo, Japan
| | - Fumi Nozaki
- Department of Diagnostic Pathology, St. Luke's International Hospital, Tokyo, Japan
| | - Chih-Ping Li
- Department of Pathology, Saitama Medical University, Saitama, Japan
| | - Eriko Abe
- Department of Diagnostic Pathology, St. Luke's International Hospital, Tokyo, Japan
| | - Teruo Yamauchi
- Department of Internal Medicine, Division of Medical Oncology, St. Luke's International Hospital, Tokyo, Japan
| | - Saya Horiuchi
- Department of Radiology, St. Luke's International Hospital, Tokyo, Japan
| | - Minobu Kamo
- Department of Radiology, St. Luke's International Hospital, Tokyo, Japan
| | - Kazunori Hattori
- Department of Urology, St. Luke's International Hospital, Tokyo, Japan
| | - Yoji Nagashima
- Department of Surgical Pathology, Tokyo Women's Medical University, Tokyo, Japan
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McNamara KM, Oguro S, Omata F, Kikuchi K, Guestini F, Suzuki K, Yang Y, Abe E, Hirakawa H, Brown KA, Takanori I, Ohuchi N, Sasano H. The presence and impact of estrogen metabolism on the biology of triple-negative breast cancer. Breast Cancer Res Treat 2016; 161:213-227. [DOI: 10.1007/s10549-016-4050-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/05/2016] [Indexed: 11/25/2022]
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Liu J, Sasamoto R, Kaidu M, Ayukawa F, Yamana N, Tanaka K, Kawaguchi G, Ohta A, Maruyama K, Abe E, Saitou H, Nakano T, Aoyama H. High-Dose-Rate Brachytherapy in Which 2 Fractions Were Administered Within a Single Day Combined With External Beam Radiation Therapy for Prostate Cancer: Four-year Experience and Outcomes. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Alvarez JC, Larabi IA, Abe E, Etting I, Peyraud N, Rafael F, Grandesso F, Baud F. Épidémie de dystonie en République Démocratique du Congo : les risques de la contrefaçon. Toxicologie Analytique et Clinique 2016. [DOI: 10.1016/j.toxac.2016.03.018] [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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25
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Utsunomiya S, Kushima N, Katsura K, Tanabe S, Hayakawa T, Sakai H, Yamada T, Takahashi H, Abe E, Wada S, Aoyama H. SU-C-BRC-05: Monte Carlo Calculations to Establish a Simple Relation of Backscatter Dose Enhancement Around High-Z Dental Alloy to Its Atomic Number. Med Phys 2016. [DOI: 10.1118/1.4955552] [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: 11/07/2022] Open
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Funck-Brentano E, Alvarez J, Longvert C, Abe E, Beauchet A, Saiag P, Funck-Brentano C. Reply to the letter to the editor ‘Plasma vemurafenib concentrations in advanced BRAFV600mut melanoma patients: impact on tumor response and tolerance’ by Funck-Brentano et al. Ann Oncol 2016; 27:364-5. [DOI: 10.1093/annonc/mdv549] [Citation(s) in RCA: 6] [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: 11/12/2022] Open
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27
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Miyakoshi N, Hongo M, Kobayashi T, Abe T, Abe E, Shimada Y. Improvement of spinal alignment and quality of life after corrective surgery for spinal kyphosis in patients with osteoporosis: a comparative study with non-operated patients. Osteoporos Int 2015; 26:2657-64. [PMID: 25963236 DOI: 10.1007/s00198-015-3163-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 05/01/2015] [Indexed: 11/26/2022]
Abstract
UNLABELLED This study evaluated changes in spinal alignment and quality of life (QOL) after corrective spinal surgery for patients with postmenopausal osteoporosis and spinal kyphosis. Spinal global alignment and QOL were significantly improved after corrective spinal surgery but did not reach the level of non-operated controls. INTRODUCTION With the increased aging of society, the demand for corrective spinal instrumentation for spinal kyphosis in osteoporotic patients is increasing. However, previous studies have not focused on the improvement of quality of life (QOL) after corrective spinal surgery in patients with osteoporosis, compared to non-operated control patients. The purposes of this study were thus to evaluate changes in spinal alignment and QOL after corrective spinal instrumentation for patients with osteoporosis and spinal kyphosis and to compare these results with non-operated patients. METHODS Participants comprised 39 patients with postmenopausal osteoporosis ≥50 years old who underwent corrective spinal surgery using multilevel posterior lumbar interbody fusion (PLIF) for symptomatic thoracolumbar or lumbar kyphosis, and 82 age-matched patients with postmenopausal osteoporosis without prevalent vertebral fractures. Spinopelvic parameters were evaluated with standing lateral spine radiography, and QOL was evaluated with the Japanese Osteoporosis QOL Questionnaire (JOQOL), SF-36, and Roland-Morris Disability Questionnaire (RDQ). RESULTS Lumbar kyphosis angle, sagittal vertical axis, and pelvic tilt were significantly improved postoperatively. QOL evaluated with all three questionnaires also significantly improved after 6 months postoperatively, particularly in domain and subscale scores for pain and general/mental health. However, these radiographic parameters, total JOQOL score, SF-36 physical component summary score, and RDQ score were significantly inferior compared with non-operated controls. CONCLUSIONS The results indicate that spinal global alignment and QOL were significantly improved after corrective spinal surgery using multilevel PLIF for patients with osteoporosis and spinal kyphosis but did not reach the level of non-operated controls.
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Affiliation(s)
- N Miyakoshi
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan.
| | - M Hongo
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - T Kobayashi
- Department of Orthopedic Surgery, Akita Kousei Medical Center, 1-1-1 Iijima-Nishifukuro, Akita, 011-0948, Japan
| | - T Abe
- Department of Orthopedic Surgery, Akita Kousei Medical Center, 1-1-1 Iijima-Nishifukuro, Akita, 011-0948, Japan
| | - E Abe
- Department of Orthopedic Surgery, Akita Kousei Medical Center, 1-1-1 Iijima-Nishifukuro, Akita, 011-0948, Japan
| | - Y Shimada
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
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Veronese N, Cereda E, Solmi M, Fowler SA, Manzato E, Maggi S, Manu P, Abe E, Hayashi K, Allard JP, Arendt BM, Beck A, Chan M, Audrey YJP, Lin WY, Hsu HS, Lin CC, Diekmann R, Kimyagarov S, Miller M, Cameron ID, Pitkälä KH, Lee J, Woo J, Nakamura K, Smiley D, Umpierrez G, Rondanelli M, Sund-Levander M, Valentini L, Schindler K, Törmä J, Volpato S, Zuliani G, Wong M, Lok K, Kane JM, Sergi G, Correll CU. Inverse relationship between body mass index and mortality in older nursing home residents: a meta-analysis of 19,538 elderly subjects. Obes Rev 2015; 16:1001-15. [PMID: 26252230 DOI: 10.1111/obr.12309] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 06/30/2015] [Accepted: 06/30/2015] [Indexed: 12/13/2022]
Abstract
Body mass index (BMI) and mortality in old adults from the general population have been related in a U-shaped or J-shaped curve. However, limited information is available for elderly nursing home populations, particularly about specific cause of death. A systematic PubMed/EMBASE/CINAHL/SCOPUS search until 31 May 2014 without language restrictions was conducted. As no published study reported mortality in standard BMI groups (<18.5, 18.5-24.9, 25-29.9, ≥30 kg/m(2)), the most adjusted hazard ratios (HRs) according to a pre-defined list of covariates were obtained from authors and pooled by random-effect model across each BMI category. Out of 342 hits, 20 studies including 19,538 older nursing home residents with 5,223 deaths during a median of 2 years of follow-up were meta-analysed. Compared with normal weight, all-cause mortality HRs were 1.41 (95% CI = 1.26-1.58) for underweight, 0.85 (95% CI = 0.73-0.99) for overweight and 0.74 (95% CI = 0.57-0.96) for obesity. Underweight was a risk factor for higher mortality caused by infections (HR = 1.65 [95% CI = 1.13-2.40]). RR results corroborated primary HR results, with additionally lower infection-related mortality in overweight and obese than in normal-weight individuals. Like in the general population, underweight is a risk factor for mortality in old nursing home residents. However, uniquely, not only overweight but also obesity is protective, which has relevant nutritional goal implications in this population/setting.
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Affiliation(s)
- N Veronese
- Department of Medicine - DIMED, Geriatrics Section, University of Padova, Padova, Italy
| | - E Cereda
- Nutrition and Dietetics Service, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - M Solmi
- Department of Neurosciences, University of Padova, Padova, Italy
| | - S A Fowler
- Becker Medical Library, Washington University, St. Louis, MO, USA
| | - E Manzato
- Department of Medicine - DIMED, Geriatrics Section, University of Padova, Padova, Italy.,National Research Council, Institute of Neuroscience, Padova, Italy
| | - S Maggi
- National Research Council, Institute of Neuroscience, Padova, Italy
| | - P Manu
- The Zucker Hillside Hospital, Psychiatry Research, North Shore - Long Island Jewish Health System, Glen Oaks, New York, USA.,Hofstra North Shore LIJ School of Medicine, Hempstead, New York, USA.,The Feinstein Institute for Medical Research, Manhasset, New York, USA.,Albert Einstein College of Medicine, Bronx, New York, USA
| | - E Abe
- Gunma University Graduate School of Health Sciences, Maebashi, Gunma, Japan
| | - K Hayashi
- Gunma University Graduate School of Health Sciences, Maebashi, Gunma, Japan
| | - J P Allard
- Toronto General Hospital, University Health Network, Toronto, Canada.,Department of Medicine, University of Toronto, Toronto, Canada
| | - B M Arendt
- Toronto General Hospital, University Health Network, Toronto, Canada
| | - A Beck
- Research Unit for Nutrition (EFFECT), Herlev University Hospital, Herlev, Denmark
| | - M Chan
- Department of Geriatric Medicine, Tan Tock Seng Hospital, Jalan Tan Tock Seng, Singapore
| | - Y J P Audrey
- Department of Geriatric Medicine, Tan Tock Seng Hospital, Jalan Tan Tock Seng, Singapore
| | - W-Y Lin
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan
| | - H-S Hsu
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan
| | - C-C Lin
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan
| | - R Diekmann
- Institute for Biomedicine of Aging, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nürnberg, Germany
| | | | - M Miller
- Nutrition and Dietetics, Flinders University, Adelaide, Australia
| | - I D Cameron
- Walsh Centre for Rehabilitation Research, University of Sydney, Sydney, Australia
| | - K H Pitkälä
- Unit of Primary Health Care, Department of General Practice, Helsinki University Central Hospital, Helsinki, Finland
| | - J Lee
- The S. H. Ho Center for Gerontology and Geriatrics, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
| | - J Woo
- The S. H. Ho Center for Gerontology and Geriatrics, The Chinese University of Hong Kong, Hong Kong, China.,Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
| | - K Nakamura
- Division of Preventive Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - D Smiley
- Division of Endocrinology and Metabolism, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - G Umpierrez
- Division of Endocrinology and Metabolism, Department of Medicine, Emory University School of Medicine, Atlanta, GA, USA
| | - M Rondanelli
- Department of Public Health, Experimental and Forensic Medicine, Section of Human Nutrition, Endocrinology and Nutrition Unit, University of Pavia, Pavia, Italy
| | - M Sund-Levander
- Faculty of Health Sciences, University of Linköping, Linköping, Sweden
| | - L Valentini
- Section of Dietetics, Department of Agriculture and Food Sciences, University of Applied Sciences, Neubrandenburg, Germany
| | - K Schindler
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University Vienna, Vienna, Austria
| | - J Törmä
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
| | - S Volpato
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - G Zuliani
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - M Wong
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
| | - K Lok
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong, China
| | - J M Kane
- The Zucker Hillside Hospital, Psychiatry Research, North Shore - Long Island Jewish Health System, Glen Oaks, New York, USA.,Hofstra North Shore LIJ School of Medicine, Hempstead, New York, USA.,The Feinstein Institute for Medical Research, Manhasset, New York, USA.,Albert Einstein College of Medicine, Bronx, New York, USA
| | - G Sergi
- Department of Medicine - DIMED, Geriatrics Section, University of Padova, Padova, Italy
| | - C U Correll
- The Zucker Hillside Hospital, Psychiatry Research, North Shore - Long Island Jewish Health System, Glen Oaks, New York, USA.,Hofstra North Shore LIJ School of Medicine, Hempstead, New York, USA.,The Feinstein Institute for Medical Research, Manhasset, New York, USA.,Albert Einstein College of Medicine, Bronx, New York, USA
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Fujita N, Yamashita K, Matsushita M, Yamasaki M, Kawamura Y, Abe E. B22-P-12A Novel Long-Period Structure Formed in a High-Pressure Synthesized Mg-Zn-Yb Alloy. Microscopy (Oxf) 2015. [DOI: 10.1093/jmicro/dfv268] [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: 11/12/2022] Open
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Tanaka K, Kanemoto A, Ohta A, Sato H, Kawaguchi G, Kaidu M, Ayukawa F, Abe E, Matsumoto Y, Sugita T, Aoyama H. Assessment of Verbal Learning and Memory After Whole-Brain Radiation Therapy With Different Dose Fractionation Using the Hopkins Verbal Learning Test: The Revised Japanese Version. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.803] [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: 11/27/2022]
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Wada C, Taji T, Kato A, Sato H, Hatakeyama T, Takeda F, Obara K, Abe E, Kobayashi M, Imota T, Ishihara T, Mamiya S, Toyoshima I. Dysfunction of dorsal visual pathway in myotonic dystrophy type 1. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.448] [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: 10/22/2022]
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Tanabe S, Utsunomiya S, Abe E, Satou H, Sakai H, Yamada T, Aoyama H. SU-E-J-24: Can Fiducial Marker-Based Setup Using ExacTrac Be An Alternative to Soft Tissue-Based Setup Using Cone-Beam CT for Prostate IMRT? Med Phys 2015. [DOI: 10.1118/1.4924111] [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: 11/07/2022] Open
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Abe E, Hayashi N, Onoda T, Yang Y, Uno M, Yamauchi H, Ohde S, Suzuki K. Abstract P2-01-32: Comparison between positive and false-negative sentinel lymph nodes in breast cancer patients. Cancer Res 2015. [DOI: 10.1158/1538-7445.sabcs14-p2-01-32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background:
Intra-operative sentinel node biopsy (SNB) is performed for clinically node negative invasive carcinoma (IC). Despite a negative result for metastasis from rapid frozen section (FS) diagnosis of intra-operative SNB, some cases may be diagnosed positive when permanent sections (PS) are analyzed (i.e., false negative). In order to reduce the false-negative rate, it is necessary to determine why macrometastases measuring greater than 2 mm cannot be accurately diagnosed using frozen specimens. The aim of this study was to compare the pathological characteristics of false-negative and positive cases of macrometastasis using FSs. We also reviewed whether there were differences in postoperative prognoses between positive and false-negative cases.
Methods:
We retrospectively reviewed 1632 intra-operative SNBs collected from 2008 to 2011 at St. Luke’s International Hospital, Tokyo, JAPAN. Of these, 980 patients had undergone surgery for the treatment of IC without neoadjuvant chemotherapy. Lymph nodes were sectioned every 2 mm and examined. For FSs, we performed hematoxylin and eosin (HE) staining, and for PSs, we used HE and cytokeratin (AE1/AE3) staining. Image J (NIH Image, Bethesda, MD, USA) was used for assessment of the metastatic area of lymph nodes. Micro- and macrometastases were defined as metastatic lesions measuring between 0.2 and 2 mm or measuring 2 mm or more, according to TMN classification.
Results:
Using FSs, we identified 104 patients (10.6%) who were positive for macrometastasis, 16 patients (1.6%) who were positive for micrometastasis, and 860 patients (87.8%) who were negative for metastasis. Of the negative cases, the result was changed to micrometastasis in 37 cases (4.3%) and to macrometastasis (false-negative cases) in 14 cases (1.6%). Ten of the 14 patients did not have additional axillary lymph nodes dissection. The mean age of the patients was 55.1 ± 3.1 years for false-negative cases and 52.3 ± 1.2 years for positive cases. In terms of histological features, there were statistically significant differences between false-negative and positive cases for invasive ductal carcinoma (IDC), invasive lobular carcinoma (ILC), and IDC plus ILC (p < 0.05). There were no statistically significant differences between false-negative and positive cases in terms of the total number of slices for lymph nodes (8.4 ± 1.6 vs. 9.7 ± 0.6, respectively; p = 0.41) but tendency in the number of slices for metastases (2.4 ± 1.2 vs. 4.8 ± 0.5, respectively; p = 0.07). The maximum area ratio of metastasis was significantly lower in false-negative cases than in positive cases (3.0% ± 0.1% vs. 20.0% ± 0.2%, respectively; p < 0.05). There was no significant difference in disease-free survival between false-negative and positive cases (p = 0.43).
Conclusions:
Although it is necessary to reduce false-negative cases, no difference in prognosis was detected in our study. False-negative cases had lower metastasis area ratios than positive cases diagnosed using rapid diagnosis of intra-operative SNBs, and ILC is known to be high in histological features. Therefore, using AE1/AE3 stain together with rapid diagnosis of intra-operative SNBs may lower the false-negative rate when a diagnosis includes ILC in pre-operation analysis.
Citation Format: Eriko Abe, Naoki Hayashi, Toshinao Onoda, Yang Yang, Mieko Uno, Hideko Yamauchi, Sachiko Ohde, Koyu Suzuki. Comparison between positive and false-negative sentinel lymph nodes in breast cancer patients [abstract]. In: Proceedings of the Thirty-Seventh Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2014 Dec 9-13; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2015;75(9 Suppl):Abstract nr P2-01-32.
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Affiliation(s)
| | | | | | | | | | | | - Sachiko Ohde
- 4St Luke's Life Science Institute Center for Clinical Epidemiology
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Funck-Brentano E, Alvarez JC, Longvert C, Abe E, Beauchet A, Funck-Brentano C, Saiag P. Plasma vemurafenib concentrations in advanced BRAFV600mut melanoma patients: impact on tumour response and tolerance. Ann Oncol 2015; 26:1470-5. [PMID: 25899783 DOI: 10.1093/annonc/mdv189] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 04/13/2015] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Vemurafenib improves survival in advanced BRAFV600(mut) melanoma patients, but tolerance is often poor and resistance frequently occurs, without predictive factor. Our aim was to investigate for the first time a relationship between plasma vemurafenib concentration (PVC) and efficacy or tolerance. METHODS Plasma samples from unresectable metastatic BRAFV600(mut) melanoma patients treated with vemurafenib monotherapy were prospectively collected at each tumour response evaluation (RECIST 1.1) or when adverse event occurred (CTCAE 4.0). PVC was measured with liquid chromatography-tandem mass spectrometry. Herein, we report on PVC at steady state (≥14 days after vemurafenib introduction or dose modification). Samples collected after first melanoma progression were excluded from the response analysis. All samples were analysed in the tolerance analysis. We kept the closest collected sample from the onset of each adverse effect or the one with the highest PVC in the absence of this adverse effect. Comparisons of means (Student's t-tests and Wilcoxon rank sum tests) and of frequencies (χ(2) tests) were carried out. A logistic regression analysis identified predictors of progression. RESULTS We included 105 plasma samples in 23 patients (10M/13F). Initial vemurafenib dose was 960 mg b.i.d., reduced by 25% (8 patients) or 50% (2 patients) for intolerance in 10 patients (44%). PVC displayed high inter-individual variability (13.0-109.8 µg/ml, median 54.0). Mean PVC was lower at time of first progression (38.8 ± 19.7 µg/ml) than mean PVC found when tumour was stable or in partial or complete response (56.4 ± 21.0 µg/ml, P = 0.013, 21 patients). Logistic regression revealed that having a low PVC (P = 0.01) or brain metastasis (P = 0.01) were both significantly and independently associated with tumour progression. High PVC was not statistically significantly associated with the occurrence of adverse effects. CONCLUSION PVC at steady state is highly variable and low PVC was associated with tumour progression, suggesting a new path to melanoma resistance to vemurafenib.
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Affiliation(s)
- E Funck-Brentano
- Department of Dermatology, AP-HP, Ambroise Paré Hospital, Boulogne-Billancourt University of Versailles-Saint-Quentin-en-Yvelines, Research Unit EA 4340 'Biomarkers in Cancerology and in Hemato-oncology', Boulogne-Billancourt
| | - J C Alvarez
- Department of Toxicology, AP-HP, Raymond Poincaré Hospital, Boulogne-Billancourt University of Versailles-Saint-Quentin-en-Yvelines, Boulogne-Billancourt
| | - C Longvert
- Department of Dermatology, AP-HP, Ambroise Paré Hospital, Boulogne-Billancourt University of Versailles-Saint-Quentin-en-Yvelines, Research Unit EA 4340 'Biomarkers in Cancerology and in Hemato-oncology', Boulogne-Billancourt
| | - E Abe
- Department of Toxicology, AP-HP, Raymond Poincaré Hospital, Boulogne-Billancourt University of Versailles-Saint-Quentin-en-Yvelines, Boulogne-Billancourt
| | - A Beauchet
- University of Versailles-Saint-Quentin-en-Yvelines, Boulogne-Billancourt Department of Public Health, AP-HP, Ambroise Paré Hospital, Boulogne-Billancourt
| | - C Funck-Brentano
- INSERM, CIC-1421 and UMR ICAN 1166, Paris Department of Pharmacology and CIC-1421, AP-HP, Pitié-Salpêtrière Hospital, Paris Department of Pharmacology and UMR ICAN 1166, Faculty of Medicine, Sorbonne Universités, UPMC Univ Paris 06, Paris, France
| | - P Saiag
- Department of Dermatology, AP-HP, Ambroise Paré Hospital, Boulogne-Billancourt University of Versailles-Saint-Quentin-en-Yvelines, Research Unit EA 4340 'Biomarkers in Cancerology and in Hemato-oncology', Boulogne-Billancourt
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Yang Y, Suzuki K, Abe E, Li C, Uno M, Akiyama F, Yamauchi H, Kikuchi M, Ohde S, Deshpande G, Shibahara Y, Nakamura Y, Sasano H. The significance of combined CK5/6 and p63 immunohistochemistry in predicting the risks of subsequent carcinoma development in intraductal papilloma of the breast. Pathol Int 2015; 65:81-8. [PMID: 25572436 DOI: 10.1111/pin.12248] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 11/30/2014] [Indexed: 12/16/2022]
Abstract
Prediction of subsequent risks of breast carcinoma (BC) development in intraductal papilloma (IDP) has remained controversial with the exception of atypical papilloma (AP). The potential value of immunohistochemistry (IHC) of cytokeratin 5/6 [CK5/6] and p63 have been proposed but its standardization has also remained controversial. We studied 17 patients initially diagnosed as IDP or AP who subsequently developed BC with 34 age-matched controls. We compared histological features, results of IHC (estrogen receptor [ER], progesterone receptor [PR], human epidermal growth factor receptor 2 [HER2], p63, CK5/6, Ki67), and ultrasound findings. Univariate conditional logistic regression analysis revealed that the status of both CK5/6 and p63/CK5/6 were significantly associated with subsequent BC development (P < 0.05). BC development in CK5/6 positive patients was 17.9% and p63/CK5/6 double positive patients 8.6%, respectively. Ultrasound evaluation was not significantly associated with any of the parameters examined and subsequent carcinoma development. Despite CK5/6 positivity, the subsequent incidence of BC development was nearly 20%. However p63/CK5/6 double positive status could predict a significantly lower subsequent carcinoma incidence, indicating a more accurate prognostic utility. Combining p63/CK5/6 with histological findings could be easily applied and could predict the subsequent BC development of the patients diagnosed as IDP at biopsy.
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Affiliation(s)
- Yang Yang
- Department of Pathology, St. Luke's International Hospital, Tokyo, Japan; Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Takahashi S, Abe E, Nakayama K, Satoh H. Identification of genes encoding photoconvertible (Class I) water-soluble chlorophyll-binding proteins from Chenopodium ficifolium. Biosci Biotechnol Biochem 2014; 79:205-10. [PMID: 25333387 DOI: 10.1080/09168451.2014.972326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 10/24/2022]
Abstract
Photoconvertible water-soluble chlorophyll-binding proteins, called Class I WSCPs, have been detected in Chenopodiaceae, Amaranthaceae and Polygonaceae plant species. To date, Chenopodium album WSCP (CaWSCP) is the only cloned gene encoding a Class I WSCP. In this study, we identified two cDNAs encoding Chenopodium ficifolium Class I WSCPs, CfWSCP1, and CfWSCP2. Sequence analyses revealed that the open reading frames of CfWSCP1 and CfWSCP2 were 585 and 588 bp, respectively. Furthermore, both CfWSCPs contain cystein2 and cystein30, which are essential for the chlorophyll-binding ability of CaWSCP. Recombinant CfWSCP1 and CfWSCP2, expressed in Escherichia coli as hexa-histidine fusion proteins (CfWSCP1-His and CfWSCP2-His), formed inclusion bodies; however, we were able to solubilize these using a buffer containing 8 M urea and then refold them by dialysis. The refolded CfWSCP1-His and CfWSCP2-His could bind chlorophylls and exhibited photoconvertibility, confirming that the cloned CfWSCPs are further examples of Class I WSCPs.
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Affiliation(s)
- Shigekazu Takahashi
- a Faculty of Science, Department of Biomolecular Science , Toho University , Funabashi , Japan
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Abe E, Ikeda K, Nutahara E, Hayashi M, Yamashita A, Taguchi R, Doi K, Honda D, Okino N, Ito M. Novel lysophospholipid acyltransferase PLAT1 of Aurantiochytrium limacinum F26-b responsible for generation of palmitate-docosahexaenoate-phosphatidylcholine and phosphatidylethanolamine. PLoS One 2014; 9:e102377. [PMID: 25090090 PMCID: PMC4121067 DOI: 10.1371/journal.pone.0102377] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 06/17/2014] [Indexed: 12/19/2022] Open
Abstract
N-3 polyunsaturated fatty acids (PUFA), such as docosahexaenoic acid (DHA, 22:6n-3), have been reported to play roles in preventing cardiovascular diseases. The major source of DHA is fish oils but a recent increase in the global demand of DHA and decrease in fish stocks require a substitute. Thraustochytrids, unicellular marine protists belonging to the Chromista kingdom, can synthesize large amounts of DHA, and, thus, are expected to be an alternative to fish oils. DHA is found in the acyl chain(s) of phospholipids as well as triacylglycerols in thraustochytrids; however, how thraustochytrids incorporate DHA into phospholipids remains unknown. We report here a novel lysophospholipid acyltransferase (PLAT1), which is responsible for the generation of DHA-containing phosphatidylcholine and phosphatidylethanolamine in thraustochytrids. The PLAT1 gene, which was isolated from the genomic DNA of Aurantiochytrium limacinum F26-b, was expressed in Saccharomyces cerevisiae, and the FLAG-tagged recombinant enzyme was characterized after purification with anti-FLAG affinity gel. PLAT1 shows wide specificity for donor substrates as well as acceptor substrates in vitro, i.e, the enzyme can adopt lysophosphatidylcholine, lysophosphatidylethanolamine, lysophosphatidylserine and lysophosphatidylinositol as acceptor substrates, and 15:0/16:0-CoA and DHA-CoA as donor substrates. In contrast to the in vitro experiment, only lysophosphatidylcholine acyltransferase and lysophosphatidylethanolamine acyltransferase activities were decreased in plat1-knockout mutants, resulting in a decrease of 16:0-DHA-phosphatidylcholine (PC) [PC(38∶6)] and 16:0-DHA-phosphatidylethanolamine (PE) [PE(38∶6)], which are two major DHA-containing phospholipids in A. limacinum F26-b. However, the amounts of other phospholipid species including DHA-DHA-PC [PC(44∶12)] and DHA-DHA-PE [PE(44∶12)] were almost the same in plat-knockout mutants and the wild-type. These results indicate that PLAT1 is the enzyme responsible for the generation of 16:0-DHA-PC and 16:0-DHA-PE in the thraustochytrid.
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Affiliation(s)
- Eriko Abe
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Kazutaka Ikeda
- Institute for Advanced Biosciences, Keio University, Kakuganji, Tsuruoka, Yamagata, Japan
| | - Eri Nutahara
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | | | | | - Ryo Taguchi
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai-shi, Aichi, Japan
| | - Kosaku Doi
- Graduate School of Natural Science, Konan University, Higashinada-ku, Kobe, Hyogo, Japan
- Institute for Integrative Neurobiology, Konan University, Higashinada-ku, Kobe, Hyogo, Japan
| | - Daiske Honda
- Institute for Integrative Neurobiology, Konan University, Higashinada-ku, Kobe, Hyogo, Japan
- Faculty of Science and Engineering, Konan University, Higashinada-ku, Kobe, Hyogo, Japan
| | - Nozomu Okino
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Makoto Ito
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
- Bio-Archtechture Center, Kyushu University, Fukuoka, Japan
- * E-mail:
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McNamara KM, Yoda T, Nurani AM, Shibahara Y, Miki Y, Wang L, Nakamura Y, Suzuki K, Yang Y, Abe E, Hirakawa H, Suzuki T, Nemoto N, Miyashita M, Tamaki K, Ishida T, Brown KA, Ohuchi N, Sasano H. Androgenic pathways in the progression of triple-negative breast carcinoma: a comparison between aggressive and non-aggressive subtypes. Breast Cancer Res Treat 2014; 145:281-93. [PMID: 24715382 DOI: 10.1007/s10549-014-2942-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Accepted: 03/27/2014] [Indexed: 12/21/2022]
Abstract
One of the active intracellular pathways/networks in triple-negative breast carcinoma (TNBC) is that of the androgen receptor (AR). In this study, we examined AR and androgen-metabolising enzyme immunoreactivity in subcategories of TNBC to further elucidate the roles of androgenic pathways in TNBC. We utilised formalin-fixed paraffin-embedded breast cancer samples from ductal carcinoma in situ (DCIS) and invasive ductal carcinoma patient cohorts. We then used immunohistochemistry to classify these samples into basal-like and non-basal samples and to assess interactions between AR, androgen-metabolising enzymes and proliferation. To further substantiate our hypothesis and provide mechanistic insights, we also looked at the expression and regulation of these factors in publically available microarray data and in a panel of TNBC AR-positive cell lines. DCIS was associated with higher levels of AR and enzymes (p < 0.02), although a similar difference was not noticed in basal and non-basal samples. AR and enzymes were correlated in all states. In TNBC cell lines (MDA-MD-453, MFM-223 and SUM185-PE), we found that DHT treatment up-regulated 5αR1 and 17βHSD5 suggesting a mechanistic explanation for the correlations observed in the histological samples. Publicly available microarray data in TNBC cases suggested similar patterns to those observed in histological samples. In the majority of settings, including publically available microarray data, an inverse association between AR and proliferation was detected. These findings suggest that decreases in AR and androgen-metabolising enzymes may be involved in the increased biological aggressiveness in TNBC development.
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MESH Headings
- 3-Hydroxysteroid Dehydrogenases/genetics
- 3-Hydroxysteroid Dehydrogenases/metabolism
- Aldo-Keto Reductase Family 1 Member C3
- Androgens/metabolism
- Carcinoma, Ductal, Breast/drug therapy
- Carcinoma, Ductal, Breast/metabolism
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Intraductal, Noninfiltrating/drug therapy
- Carcinoma, Intraductal, Noninfiltrating/metabolism
- Carcinoma, Intraductal, Noninfiltrating/pathology
- Cell Line, Tumor
- Cell Proliferation
- Cholestenone 5 alpha-Reductase/genetics
- Cholestenone 5 alpha-Reductase/metabolism
- Dihydrotestosterone/pharmacology
- ErbB Receptors/metabolism
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- Hydroxyprostaglandin Dehydrogenases/genetics
- Hydroxyprostaglandin Dehydrogenases/metabolism
- Keratin-5/metabolism
- Keratin-6/metabolism
- Receptors, Androgen/metabolism
- Triple Negative Breast Neoplasms/drug therapy
- Triple Negative Breast Neoplasms/metabolism
- Triple Negative Breast Neoplasms/pathology
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Affiliation(s)
- Keely M McNamara
- Department of Pathology, Tohoku University School of Medicine, Sendai, Japan,
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39
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Abe E, Suzuki K, Hayashi N, Yang Y, Li CP, Uno M, Akiyama F, Yamauchi H, Nakamura S, Tsugawa K, Tsunoda H, Ohde S, Sasano H. Clinicopathological significance of 'atypical ductal proliferation' in core needle biopsy of the breast. Pathol Int 2014; 64:58-66. [PMID: 24629173 DOI: 10.1111/pin.12135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 01/13/2014] [Indexed: 11/30/2022]
Abstract
Atypical ductal proliferation or ADP has been used in histopathological diagnosis of core needle biopsy (CNB) but its details have not been well studied. Therefore, we examined the clinicopathological characteristics of the initial CNB cases diagnosed as 'ADP ' who subsequently turned out to be malignant, and compared the findings to those that did not. Among 101 cases initially diagnosed as ADP in CNB, the second biopsy revealed no carcinoma (38), ductal carcinoma in situ (DCIS) (45) and invasive carcinoma (18). Significant differences were detected between those which turned out to be carcinoma and those that did not, in the status of myoepithelial cells identified by p63 immunohistochemistry (P = 0.026) and ultrasound (US) categories (P < 0.001). We further compared the histopathological characteristics of those initially diagnosed as ADP and subsequently as DCIS or invasive ductal carcinoma (IDC) with those initially diagnosed as such. DCIS or IDC cases initially diagnosed as ADP had significantly lower Ki67 labeling index (P < 0.01, P < 0.01) and histological grade using Van nuys prognostic index (P < 0.01) or Nottingham histological grades (P < 0.01) respectively than those initially as DCIS or IDC. An assessment of myoepithelial components with US findings might contribute to determine the subsequent clinical algorithm of the patients diagnosed as ADP at initial CNB.
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Affiliation(s)
- Eriko Abe
- Department of Pathology, St. Luke's International Hospital, Tokyo; Department of Pathology, Tohoku University Hospital, Sendai
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40
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Grassin-Delyle S, Tremey B, Abe E, Fischler M, Alvarez J, Devillier P, Urien S. Population pharmacokinetics of tranexamic acid in adults undergoing cardiac surgery with cardiopulmonary bypass. Br J Anaesth 2013; 111:916-24. [DOI: 10.1093/bja/aet255] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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41
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Kawaguchi G, Obinata M, Sasamoto R, Tanaka K, Sato H, Kanemoto A, Ayukawa F, Abe E, Kaidu M, Aoyama H. A New Choice of Treatments for Invasive Superficial Esophageal Squamous Cell Carcinoma: Investigation of Efficacy of Prophylactic Chemoradiation Therapy After Endoscopic Submucosal Dissection. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.752] [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]
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42
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Masuda M, Miki Y, Hata S, Takagi K, Sakurai M, Ono K, Suzuki K, Yang Y, Abe E, Hirakawa H, Ishida T, Suzuki T, Ohuchi N, Sasano H. An induction of microRNA, miR-7 through estrogen treatment in breast carcinoma. J Transl Med 2013; 10 Suppl 1:S2. [PMID: 23227519 PMCID: PMC3445861 DOI: 10.1186/1479-5876-10-s1-s2] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background Estrogen plays an important role in the development of estrogen-dependent breast carcinoma. Recently, several studies demonstrated a possible involvement of several micro RNAs (miRNAs) in the development of resistance to endocrine therapy in breast cancer patients, but the correlation between estrogen actions and miRNA expression in breast carcinoma still remains largely unknown. Therefore, in this study, we examined the in vitro effects of estrogen upon miRNA expression profiles in breast carcinoma. Methods We first screened the miRNA expression profiles induced by 17β-Estradiol (E2) using RT2 miRNA PCR Array in the ER-positive breast carcinoma cell line MCF-7. We identified miR-7 as the important miRNA associated with estrogen actions in these cells and further examined the changes of estrogen-dependent EGFR expression by miR-7 in ER-positive or -negative breast carcinoma cell lines including MCF-7. We also evaluated the correlation between miR-7 and EGFR expression in breast carcinoma cells derived from 21 patients using laser capture microdissection combined with quantitative reverse transcriptase-PCR. Results Seventeen miRNAs were significantly induced by E2 treatment in the MCF-7 cell line. Among 17 miRNAs induced by estradiol treatment, only miR-7 expression was significantly decreased by subsequent ICI treatment. The expression of miR-7 was up-regulated 2.94-fold by E2 treatment. miR-7 was reported to suppress epidermal growth factor receptor (EGFR) expression in several human malignancies. Transfection of miR-7 significantly suppressed EGFR mRNA levels in MCF-7 cells. Depletion of E2 from cell culture media also increased the expression level of EGFR mRNA in MCF-7 and T-47D cells but not in ER-negative, MDA-MB-231 and SK-BR-3 cells. We also evaluated the status of miR-7 in breast carcinoma tissues, but the correlation between the status of miR-7 and EGFR in carcinoma cells isolated by laser capture microscopy was not detected. Conclusions These results suggest that miR-7 may play a role in the development of resistance to endocrine therapy in breast cancer patients through regulating EGFR expression of carcinoma cells.
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Affiliation(s)
- Mariko Masuda
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
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43
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To SQ, Takagi K, Miki Y, Suzuki K, Abe E, Yang Y, Sasano H, Simpson ER, Knower KC, Clyne CD. Epigenetic mechanisms regulate the prostaglandin E receptor 2 in breast cancer. J Steroid Biochem Mol Biol 2012; 132:331-8. [PMID: 22929011 DOI: 10.1016/j.jsbmb.2012.07.007] [Citation(s) in RCA: 8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Revised: 06/18/2012] [Accepted: 07/31/2012] [Indexed: 01/16/2023]
Abstract
The increase in local oestrogen production seen in oestrogen receptor positive (ER+) breast cancers is driven by increased activity of the aromatase enzyme. CYP19A1, the encoding gene for aromatase, is often overexpressed in the oestrogen-producing cells of the breast adipose fibroblasts (BAFs) surrounding an ER+ tumour, and the molecular processes underlying this upregulation is important in the development of breast-specific aromatase inhibitors for breast cancer therapy. Prostaglandin E2 (PGE2), a factor secreted by tumours, is known to stimulate CYP19A1 expression in human BAFs. The hormonal regulation of this process has been examined; however, what is less well understood is the emerging role of epigenetic mechanisms and how they modulate PGE2 signalling. This present study characterises the epigenetic processes underlying expression of the prostanoid receptor EP2 in the context of ER+ breast cancer. Sodium bisulphite sequencing of CpG methylation within the promoter region of EP2 revealed that an inverse correlation existed between methylation levels and relative EP2 expression in breast cancer cell lines MDA-MB-231, MCF7 and MCF10A but not in HS578t and T47D. Inhibition of DNA methylation with 5-aza-2'-deoxycytidine (5aza) and histone deacetylation with Trichostatin A (TSA) resulted in upregulation of EP2 mRNA in all cell lines with varying influences of each epigenetic process observed. Expression of EP2 was detected in human BAFs despite a natively methylated promoter, and this expression was further increased upon 5aza treatment. An examination of 3 triple negative, 3 ductal carcinoma in situ and 3 invasive ductal carcinoma samples revealed that there was no change in EP2 promoter methylation status between normal and cancer associated stroma, despite observed differences in relative mRNA levels. Although EP2 methylation status is inversely correlated to expression levels in established breast cancer cell lines, we could not identify that such a correlation existed in tumour-associated stroma cells.
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MESH Headings
- Adipose Tissue/cytology
- Azacitidine/analogs & derivatives
- Azacitidine/pharmacology
- Breast Neoplasms/genetics
- Breast Neoplasms/pathology
- Carcinoma, Intraductal, Noninfiltrating/genetics
- Carcinoma, Intraductal, Noninfiltrating/pathology
- Cell Line, Tumor
- CpG Islands
- DNA Methylation
- Decitabine
- Epigenesis, Genetic
- Female
- Fibroblasts/metabolism
- Gene Expression Regulation, Neoplastic
- Histone Deacetylase Inhibitors/pharmacology
- Histones/metabolism
- Humans
- Hydroxamic Acids/pharmacology
- Promoter Regions, Genetic
- Receptors, Prostaglandin E, EP2 Subtype/genetics
- Receptors, Prostaglandin E, EP2 Subtype/metabolism
- Reference Values
- Stromal Cells/metabolism
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Affiliation(s)
- Sarah Q To
- Cancer Drug Discovery Laboratory, Prince Henry's Institute of Medical Research, Clayton, Victoria 3168, Australia
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Shibamoto Y, Sumi M, Onodera S, Matsushita H, Sugie C, Tamaki Y, Onishi H, Abe E, Koizumi M, Miyawaki D. Primary Central Nervous System Lymphoma (PCNSL) Treated by Radiation Therapy: A Nationwide Survey of 2005-2009 Patients and Comparison With 1985-2004 Data. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.513] [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: 11/30/2022]
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45
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Sakaguchi K, Matsuda T, Kobayashi T, Ohara JI, Hamaguchi R, Abe E, Nagano N, Hayashi M, Ueda M, Honda D, Okita Y, Taoka Y, Sugimoto S, Okino N, Ito M. Versatile transformation system that is applicable to both multiple transgene expression and gene targeting for Thraustochytrids. Appl Environ Microbiol 2012; 78:3193-202. [PMID: 22344656 PMCID: PMC3346472 DOI: 10.1128/aem.07129-11] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Accepted: 02/08/2012] [Indexed: 12/30/2022] Open
Abstract
A versatile transformation system for thraustochytrids, a promising producer for polyunsaturated fatty acids and fatty acid-derived fuels, was established. G418, hygromycin B, blasticidin, and zeocin inhibited the growth of thraustochytrids, indicating that multiple selectable marker genes could be used in the transformation system. A neomycin resistance gene (neo(r)), driven with an ubiquitin or an EF-1α promoter-terminator from Thraustochytrium aureum ATCC 34304, was introduced into representatives of two thraustochytrid genera, Aurantiochytrium and Thraustochytrium. The neo(r) marker was integrated into the chromosomal DNA by random recombination and then functionally translated into neo(r) mRNA. Additionally, we confirmed that another two genera, Parietichytrium and Schizochytrium, could be transformed by the same method. By this method, the enhanced green fluorescent protein was functionally expressed in thraustochytrids. Meanwhile, T. aureum ATCC 34304 could be transformed by two 18S ribosomal DNA-targeting vectors, designed to cause single- or double-crossover homologous recombination. Finally, the fatty acid Δ5 desaturase gene was disrupted by double-crossover homologous recombination in T. aureum ATCC 34304, resulting in an increase of dihomo-γ-linolenic acid (C(20:3n-6)) and eicosatetraenoic acid (C(20:4n-3)), substrates for Δ5 desaturase, and a decrease of arachidonic acid (C(20:4n-6)) and eicosapentaenoic acid (C(20:5n-3)), products for the enzyme. These results clearly indicate that a versatile transformation system which could be applicable to both multiple transgene expression and gene targeting was established for thraustochytrids.
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Affiliation(s)
- Keishi Sakaguchi
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Takanori Matsuda
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Takumi Kobayashi
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Jun-ichiro Ohara
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Rie Hamaguchi
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Eriko Abe
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Naoki Nagano
- Department of Marine Biology and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Masahiro Hayashi
- Department of Marine Biology and Environmental Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Mayumi Ueda
- Graduate School of Natural Science, Konan University, Higashinada, Kobe, Hyogo, Japan
| | - Daiske Honda
- Department of Biology, Faculty of Science and Engineering, Konan University, Kobe, Japan
| | - Yuji Okita
- Nippon Suisan Kaisha, Ltd., Tokyo, Japan
| | | | | | - Nozomu Okino
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
| | - Makoto Ito
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
- Bio-Architecture Center, Kyushu University, Fukuoka, Japan
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Matsuda T, Sakaguchi K, Hamaguchi R, Kobayashi T, Abe E, Hama Y, Hayashi M, Honda D, Okita Y, Sugimoto S, Okino N, Ito M. Analysis of Δ12-fatty acid desaturase function revealed that two distinct pathways are active for the synthesis of PUFAs in T. aureum ATCC 34304. J Lipid Res 2012; 53:1210-22. [PMID: 22368282 DOI: 10.1194/jlr.m024935] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Thraustochytrids are known to synthesize PUFAs such as docosahexaenoic acid (DHA). Accumulating evidence suggests the presence of two synthetic pathways of PUFAs in thraustochytrids: the polyketide synthase-like (PUFA synthase) and desaturase/elongase (standard) pathways. It remains unclear whether the latter pathway functions in thraustochytrids. In this study, we report that the standard pathway produces PUFA in Thraustochytrium aureum ATCC 34304. We isolated a gene encoding a putative Δ12-fatty acid desaturase (TauΔ12des) from T. aureum. Yeasts transformed with the tauΔ12des converted endogenous oleic acid (OA) into linoleic acid (LA). The disruption of the tauΔ12des in T. aureum by homologous recombination resulted in the accumulation of OA and a decrease in the levels of LA and its downstream PUFAs. However, the DHA content was increased slightly in tauΔ12des-disruption mutants, suggesting that DHA is primarily produced in T. aureum via the PUFA synthase pathway. The transformation of the tauΔ12des-disruption mutants with a tauΔ12des expression cassette restored the wild-type fatty acid profiles. These data clearly indicate that TauΔ12des functions as Δ12-fatty acid desaturase in the standard pathway of T. aureum and demonstrate that this thraustochytrid produces PUFAs via both the PUFA synthase and the standard pathways.
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Affiliation(s)
- Takanori Matsuda
- Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
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Arima Y, Hayashi N, Hayashi H, Sasaki M, Kai K, Sugihara E, Abe E, Yoshida A, Mikami S, Nakamura S, Saya H. Loss of p16 expression is associated with the stem cell characteristics of surface markers and therapeutic resistance in estrogen receptor-negative breast cancer. Int J Cancer 2011; 130:2568-79. [DOI: 10.1002/ijc.26271] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Accepted: 06/10/2011] [Indexed: 12/27/2022]
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Seki T, Abe E. Extremely long-period 1d stacking polytypes in Al 13Co 4. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311084133] [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
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49
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Abe E, Seki T, Sawada H, Okunishi E, Kondo Y, Takayanagi K. Atomic-scale electron microscopy and spectroscopy of AlMnPd quasicrystal. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311084285] [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
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50
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Egusa D, Abe E. Direct determination of long-period stacking/ordered structures in Mg 81Zn 8RE 11. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311086880] [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
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