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Alipour R, Jackson P, Bressel M, Hogg A, Callahan J, Hicks RJ, Kong G. The relationship between tumour dosimetry, response, and overall survival in patients with unresectable Neuroendocrine Neoplasms (NEN) treated with 177Lu DOTATATE (LuTate). Eur J Nucl Med Mol Imaging 2023; 50:2997-3010. [PMID: 37184682 PMCID: PMC10382388 DOI: 10.1007/s00259-023-06257-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 04/30/2023] [Indexed: 05/16/2023]
Abstract
Peptide Receptor Radionuclide Therapy (PRRT) delivers targeted radiation to Somatostatin Receptor (SSR) expressing Neuroendocrine Neoplasms (NEN). We sought to assess the predictive and prognostic implications of tumour dosimetry with respect to response by 68 Ga DOTATATE (GaTate) PET/CT molecular imaging tumour volume of SSR (MITVSSR) change and RECIST 1.1, and overall survival (OS). METHODS Patients with gastro-entero-pancreatic (GEP) NEN who received LuTate followed by quantitative SPECT/CT (Q-SPECT/CT) the next day (Jul 2010 to Jan 2019) were retrospectively reviewed. Single time-point (STP) lesional dosimetry was performed for each cycle using population-based pharmacokinetic modelling. MITVSSR and RECIST 1.1 were measured at 3-months post PRRT. RESULTS Median of 4 PRRT cycles were administered to 90 patients (range 2-5 cycles; mean 27.4 GBq cumulative activity; mean 7.6 GBq per cycle). 68% received at least one cycle with radiosensitising chemotherapy (RSC). RECIST 1.1 partial response was 24%, with 70% stable and 7% progressive disease. Cycle 1 radiation dose in measurable lesions was associated with local response (odds ratio 1.5 per 50 Gy [95% CI: 1.1-2.0], p = 0.002) when adjusted by tumour grade and RSC. Median change in MITVSSR was -63% (interquartile range -84 to -29), with no correlation with radiation dose to the most avid lesion on univariable or multivariant analyses (5.6 per 10 Gy [95% CI: -1.6, 12.8], p = 0.133). OS at 5-years was 68% (95% CI: 56-78%). Neither baseline MITVSSR (hazard ratio 1.1 [95% CI: 1.0, 1.2], p = 0.128) nor change in baseline MITVSSR (hazard ratio 1.0 [95% CI: 1.0, 1.1], p = 0.223) were associated with OS when adjusted by tumour grade and RSC but RSC was (95% CI: 0.2, 0.8, p = 0.012). CONCLUSION Radiation dose to tumour during PRRT was predictive of radiologic response but not survival. Survival outcomes may relate to other biological factors. There was no evidence that MITVSSR change was associated with OS, but a larger study is needed.
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Affiliation(s)
- R Alipour
- Department of Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Australia.
- The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia.
| | - P Jackson
- Department of Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Australia
- The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia
| | - M Bressel
- The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia
- Centre for Biostatistics and Clinical Trials, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - A Hogg
- Department of Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - J Callahan
- Department of Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - R J Hicks
- Department of Medicine, St Vincent's Medical School, The University of Melbourne, Melbourne, Australia
| | - G Kong
- Department of Cancer Imaging, Peter MacCallum Cancer Centre, Melbourne, Australia
- The Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia
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Vo TTT, Kong G, Kim C, Juang U, Gwon S, Jung W, Nguyen H, Kim SH, Park J. Exploring scavenger receptor class F member 2 and the importance of scavenger receptor family in prediagnostic diseases. Toxicol Res 2023; 39:341-353. [PMID: 37398563 PMCID: PMC10313632 DOI: 10.1007/s43188-023-00176-2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/09/2023] [Accepted: 03/14/2023] [Indexed: 07/04/2023] Open
Abstract
Scavenger Receptor Class F Member 2 (SCARF2), also known as the Type F Scavenger Receptor Family gene, encodes for Scavenger Receptor Expressed by Endothelial Cells 2 (SREC-II). This protein is a crucial component of the scavenger receptor family and is vital in protecting mammals from infectious diseases. Although research on SCARF2 is limited, mutations in this protein have been shown to cause skeletal abnormalities in both SCARF2-deficient mice and individuals with Van den Ende-Gupta syndrome (VDEGS), which is also associated with SCARF2 mutations. In contrast, other scavenger receptors have demonstrated versatile responses and have been found to aid in pathogen elimination, lipid transportation, intracellular cargo transportation, and work in tandem with various coreceptors. This review will concentrate on recent progress in comprehending SCARF2 and the functions played by members of the Scavenger Receptor Family in pre-diagnostic diseases.
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Affiliation(s)
- Thuy-Trang T. Vo
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Gyeyeong Kong
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Chaeyeong Kim
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Uijin Juang
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Suhwan Gwon
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Woohyeong Jung
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Huonggiang Nguyen
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Seon-Hwan Kim
- Department of Neurosurgery, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
| | - Jongsun Park
- Department of Pharmacology, College of Medicine, Chungnam National University, 266 Munhwa-ro, Jung-gu, Daejeon, 35015 Republic of Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 Republic of Korea
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3
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Chew N, Kannan S, Chong B, Chew J, Lin CX, Goh R, Kong G, Chin YH, Ng CH, Foo R, Chan M. The global syndemic of metabolic diseases in the young adult population: a consortium from the Global Burden of Disease 2000-2019. Eur Heart J 2023. [DOI: 10.1093/eurheartj/ehac779.130] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
A large proportion of premature deaths are related to metabolic diseases in the young adult population. We examined the global trends and mortality of metabolic diseases using estimates from the Global Burden of Diseases, Injuries and Risk Factors Study (GBD) 2019 in individuals aged below 40 years.
Methods
From 2000-2019, global estimates of prevalence, deaths, and disability-adjusted life years (DALYs) were described for metabolic diseases (type 2 diabetes mellitus [T2DM], hypertension, non-alcoholic fatty liver disease [NAFLD]). Global estimates were limited to mortality and DALYs for risk factors (hyperlipidemia and obesity). Subgroup analyses were performed based on sex, geographical regions and Socio-Demographic Index (SDI). Age-standardized prevalence, death, and DALYs were presented per 100,000 population with 95% uncertainty intervals (UI).
Findings
The prevalence for all metabolic diseases increased from 2000-2019, with the most pronounced increase in males and high SDI countries. In 2019, the highest age-standardised death rates were observed in hypertension (133·88 [121·25-155·73]; males, 160·13 [138·91-180·79]; females, 119·66 [102·33-136·86]), followed by obesity (62·59 [39·92-89·13]; males, 66·55 [39·76-97·21]; females, 58·14 [38·53-81·39]), hyperlipidemia (56·51 [41·83-73·62]; males, 67·33 [50·78-86·43]; females, 46·50 [32·70-62·38]), T2DM (18·49 [17·18-19·66]; males, 19·94 [18·50-21·32]; females, 17·30 [15·62-18·70]) and NAFLD (2·09 [1·61-2·60]; males, 2·38 [1·82-3·02]; females, 1·82 [1·41-2·27]). Similarly, obesity (1932·54 [1276·61-2639·74]) had the highest age-standardised DALYs, followed by hypertension (2885·57 [2580·75-3201·05]), hyperlipidemia (1207·15 [975·07-1461·11]), T2DM (801·55 [670·58-954·43]) and NAFLD (53·33 [40·73-68·29]). Mortality rates decreased over time in hyperlipidemia (-60%), hypertension (-47%), NAFLD (-31%) and T2DM (-20%), but not in obesity (107% increase). The highest metabolic-related mortality was observed in the Eastern Mediterranean and low SDI countries.
Conclusion
The growing prevalence of metabolic diseases, increasing obesity-related mortality trends, and the sex-regional-socioeconomic disparities evident in young adulthood, present the concerning global burden of metabolic diseases now and in the years ahead.
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Affiliation(s)
- N Chew
- National University Health System , Singapore , Singapore
| | - S Kannan
- National University Heart Centre , Singapore , Singapore
| | - B Chong
- National University Heart Centre , Singapore , Singapore
| | - J Chew
- National University Heart Centre , Singapore , Singapore
| | - C X Lin
- National University Heart Centre , Singapore , Singapore
| | - R Goh
- National University Heart Centre , Singapore , Singapore
| | - G Kong
- National University Heart Centre , Singapore , Singapore
| | - Y H Chin
- National University Heart Centre , Singapore , Singapore
| | - C H Ng
- National University Heart Centre , Singapore , Singapore
| | - R Foo
- National University Heart Centre , Singapore , Singapore
| | - M Chan
- National University Heart Centre , Singapore , Singapore
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Chong B, Yaow C, Chin YH, Ng CH, Goh R, Kong G, Muthiah M, Sukmawati I, Lukito AA, Chan MY, Khoo CM, Mehta A, Dimitriadis GK, Chew NWS. Higher risk of adverse cardiovascular outcomes in women with type 2 diabetes mellitus: an umbrella review of systematic reviews. Eur Heart J 2023. [DOI: 10.1093/eurheartj/ehac779.106] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Previous studies have shown that females with type 2 diabetes mellitus (T2DM) may have an excess mortality risk compared to males. Furthermore, other studies have reported sex differences in managing cardiovascular risk factors, such as controlling hypertension and hypercholesterolemia.
Purpose
With the growing evidence from systematic reviews examining the sex differences in cardiovascular outcomes for patients with T2DM, an umbrella review is an essential next step to synthesising and assessing the strength of the available evidence.
Methods
Medline and Embase were searched from inception till 7th August 2022 for systematic reviews and meta-analyses studying the effects of sex on cardiovascular outcomes in T2DM patients. Results from reviews were synthesised with a narrative synthesis, with a tabular presentation of findings and forest plots for reviews that performed a meta-analysis. AMSTAR 2 tool was used to assess the methodological quality of included reviews, while the GRADE assessment was used to assess the quality of evidence for outcomes.
Results
A total of 28 studies evaluating sex differences in cardiovascular outcomes were included. Females with T2DM had a higher risk of developing coronary heart disease (CHD; RRR 1.52, 95%CI 1.32–1.76, p<0.001), acute coronary syndrome (ACS; RRR 1.38, 95%CI 1.25–1.52, p<0.001), and heart failure (RRR 1.09, 95%CI 1.05–1.13, p<0.001) than males. In terms of mortality outcomes, females had a higher risk of all-cause mortality (RRR 1.13, 95%CI 1.07–1.19, p<0.001), cardiac mortality (RRR 1.49, 95%CI 1.11–2.00, p=0.009) and CHD mortality (RRR 1.44, 95%CI 1.20–1.73, p<0.001) as compared to males. In patients undergoing percutaneous coronary intervention, females reported higher odds of MACE (OR 1.49, 95%CI 1.07–2.07, p=0.020) and all-cause mortality (OR 1.71, 95%CI 1.46–2.00, p<0.001) compared to males. Females in Asia (RRR 1.12, 95%CI 1.03–1.21, p=0.006) and North America (RRR 1.10, 95%CI 1.08–1.12, p<0.001) were at increased risk of all-cause mortality while females in Western countries had an increased risk for cardiac death (RRR 1.84, 95%CI 1.45–2.32, p<0.001) compared to males. Six reviews were rated as high in quality; eight reviews were rated as moderate, and fourteen reviews were rated as low in quality. Regarding the quality of outcomes, all outcomes in non-interventional studies had a moderate quality of evidence, while all outcomes in interventional studies achieved a high quality of evidence.
Conclusions
This umbrella review evaluated the quality of meta-analyses and demonstrated that females with T2DM have a higher risk of cardiovascular outcomes than their male counterparts. Future studies examining the sex differences in outcomes should attempt to address the heterogeneity and epidemiological factors for a better quality of evidence. Policymakers should consider sex-specific differences in implementing effective tailored strategies to tackle T2DM.
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Affiliation(s)
- B Chong
- National University of Singapore , Singapore , Singapore
| | - C Yaow
- National University of Singapore , Singapore , Singapore
| | - Y H Chin
- National University of Singapore , Singapore , Singapore
| | - C H Ng
- National University of Singapore , Singapore , Singapore
| | - R Goh
- National University of Singapore , Singapore , Singapore
| | - G Kong
- National University of Singapore , Singapore , Singapore
| | - M Muthiah
- National University Hospital , Singapore , Singapore
| | - I Sukmawati
- Pelita Harapan University, Department of Cardiology , Tangerang , Indonesia
| | - A A Lukito
- Pelita Harapan University, Department of Cardiology , Tangerang , Indonesia
| | - M Y Chan
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - C M Khoo
- National University Hospital, Division of Endocrinology, Department of Medicine , Singapore , Singapore
| | - A Mehta
- VCU Health Pauley Heart Center, Division of Cardiology, Department of Internal Medicine , Richmond , United States of America
| | - G K Dimitriadis
- King's College London, Obesity, Type 2 Diabetes and Immunometabolism Research Group, Department of Diabetes , London , United Kingdom of Great Britain & Northern Ireland
| | - N W S Chew
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
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5
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Chong B, Jayabaskaran J, Ruban J, Goh R, Chin YH, Kong G, Ng CH, Foo R, Chai P, Kong W, Poh KK, Chan MY, Mehta A, Dimitriadis GK, Chew NWS. Effects of epicardial adipose tissue volume and thickness assessed by computed tomography and echocardiography on cardiovascular and cerebrovascular outcomes: a systematic review and meta-analysis. Eur Heart J 2023. [DOI: 10.1093/eurheartj/ehac779.009] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Epicardial adipose tissue (EAT) has garnered attention as a potential imaging biomarker for the risk stratification of cardiovascular diseases (CVD). However, the prognostic utility of EAT due to inter-ethnic differences and imaging modality (computed tomography (CT) or transthoracic echocardiography (TTE)) remains undetermined.
Purpose
To evaluate the effect of EAT volume and thickness on cardiovascular and cerebrovascular outcomes. We also aim to compare the prognostic utility between CT volumetric and TTE thickness quantification; and provide consolidated data on the heterogeneity in EAT measurements across different ethnic groups.
Methods
Medline and Embase databases were searched from inception till 16 May 2022 for studies that measured EAT volume or thickness of adult patients at baseline and reported follow-up data on outcomes of interest. Outcomes included MACE, all-cause mortality, cardiac death, myocardial infarction (MI), coronary revascularisation, atrial fibrillation (AF), and stroke. Statistical analyses were conducted on Review Manager 5.4.1 to obtain unadjusted and adjusted hazard ratios (HR) and odds ratios (OR) with the results presented on forest plots.
Results
Twenty-nine studies comprising 19709 patients were included in our analysis. Increased EAT thickness and volume were associated with higher risks of MACE (adjusted HR [aHR] 1.46, 95%CI 1.25–1.71, p<0.001), cardiac death (OR 2.53, 95%CI 1.17–5.44, p=0.020), MI (OR 2.63, 95%CI 1.39–4.96, p=0.003), coronary revascularisation (OR 2.99, 95%CI 1.64–5.44, p<0.001), AF (aOR 4.04, 95%CI 3.06–5.32, p<0.001), and stroke (HR 1.02, 95%CI 1.01–1.03, p<0.001). CT-volumetric quantification of EAT conferred a larger MACE risk (aHR 1.79, 95%CI 1.47–2.17, p<0.001) compared to TTE thickness quantification (aHR 1.20, 95%CI 1.09–1.32, p<0.001). Studies originating from North America (HR 1.91, 95%CI 1.26–2.89, p=0.002) and Asia (HR 1.60, 95%CI 1.09–2.36, p=0.020) demonstrated a significantly higher risk of MACE with increased EAT thickness and volume. However, this significance was not seen in European studies (HR 1.48, 95%CI 0.99–2.20, p=0.060). Subgroup differences were also noted across the studies’ countries of origin when analysing the association of EAT and MI (p=0.020). European studies reported a higher magnitude of MI risk associated with higher EAT thickness and volume (OR 5.28, 95%CI 2.34–11.95, p<0.001) as compared to Asian studies (OR 1.75, 95%CI 1.05–2.92, p=0.030). No differences were noted across other outcomes in the subgroup comparisons by geographical region and between CT and TTE quantification of EAT.
Conclusion
The utility of EAT as an imaging biomarker for predicting and prognosticating CVD is promising. Future efforts to harmonise the EAT parameter thresholds, based on the type of imaging modality and the target population’s ethnic characteristics, will be the next important step before including EAT in CVD prediction models.
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Affiliation(s)
- B Chong
- National University of Singapore , Singapore , Singapore
| | - J Jayabaskaran
- National University of Singapore , Singapore , Singapore
| | - J Ruban
- National University of Singapore , Singapore , Singapore
| | - R Goh
- National University of Singapore , Singapore , Singapore
| | - Y H Chin
- National University of Singapore , Singapore , Singapore
| | - G Kong
- National University of Singapore , Singapore , Singapore
| | - C H Ng
- National University of Singapore , Singapore , Singapore
| | - R Foo
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - P Chai
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - W Kong
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - K K Poh
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - M Y Chan
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
| | - A Mehta
- VCU Health Pauley Heart Center, Division of Cardiology , Richmond , United States of America
| | - G K Dimitriadis
- King's College Hospital NHS Foundation Trust, Department of Endocrinology , London , United Kingdom of Great Britain & Northern Ireland
| | - N W S Chew
- National University Heart Centre, Department of Cardiology , Singapore , Singapore
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Chew N, Ng CH, Tan D, Kong G, Lin CX, Chin YH, Foo R, Chan M, Muthiah M. Global burden of metabolic diseases: data from Global Burden of Disease 2000-2019. A cosortium of metabolic disease. Eur Heart J 2023. [DOI: 10.1093/eurheartj/ehac779.131] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
The growing prevalence of metabolic diseases is a major concern. We sought to examine the global trends and mortality of metabolic diseases using estimates from the Global Burden of Diseases, Injuries and Risk Factors Study (GBD) 2019.
Methods
Global estimates of prevalence, deaths, and disability-adjusted life year (DALYs) from 2000-2019 were examined for metabolic diseases (type 2 diabetes mellitus [T2DM], hypertension, and nonalcoholic fatty liver disease [NAFLD]). For metabolic risk factors (hyperlipidemia and obesity), estimates were limited to mortality and DALYs. Death rates was compared across sex, World Health Organisation regions and Socio-demographic Index (SDI) quintiles. Age-standardised prevalence and death rates were presented per 100,000 population with 95% uncertainty intervals (UI).
Findings
From 2000 to 2019, prevalence rates increased for all metabolic diseases, with the most pronounced increase in high SDI countries. In 2019, the mean (95%UI) age-standardised prevalence per 100,000 population was estimated to be 15,023 (13,493-16,764) for NAFLD, 5,283 (4,864–5,720) for T2DM and 234 (171-313) for hypertension. The highest age-standardised death rates were observed in obesity (62·59 [39·92-89·13]; males, 66·55 [39·76-97·21]; females. 58·14 [38·53-81·39]), followed by hyperlipidemia (56·51 [41·83-73·62]; males, 67·33 [50·78-86·43]; females, 46·50 [32·70-62·38]), T2DM (18·49 [17·18-19·66], males, 67·33 [50·78-86·43]; females, 46·50 [32·70-62·38]), hypertension (15·16 [11·20-16·75]; males, 14·95 [10·32-16·75]; females, 15·05 [11·51-17·09]) and NAFLD (2·09 [1·61-2·60]; males, 2·38 [1·82-3·02]; females, 1·82 [1·41-2·27]). Mortality rates decreased over time in hyperlipidemia (-154%), hypertension (-52%) and NAFLD (-52%), but not in T2DM and obesity. The highest mortality for metabolic diseases was found in Eastern Mediterranean, and low to low-middle SDI countries.
Conclusion
The global prevalence of metabolic diseases has risen over the past two decades regardless of SDI. Attention is needed to address the unchanging mortality rates attributed to metabolic disease and the regional, socioeconomic, and sex disparities in mortality from metabolic disease.
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Affiliation(s)
- N Chew
- National University Health System , Singapore , Singapore
| | - C H Ng
- National University Health System , Singapore , Singapore
| | - D Tan
- National University Health System , Singapore , Singapore
| | - G Kong
- National University Heart Centre , Singapore , Singapore
| | - C X Lin
- National University Heart Centre , Singapore , Singapore
| | - Y H Chin
- National University Heart Centre , Singapore , Singapore
| | - R Foo
- National University Heart Centre , Singapore , Singapore
| | - M Chan
- National University Heart Centre , Singapore , Singapore
| | - M Muthiah
- National University Health System , Singapore , Singapore
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Lim OZH, Chen Y, Dimmeler S, Yong AWJ, Singh H, Sim MLE, Kong G, Lim WH, Low TT, Park DW, Chew NWS, Foo R. Disparity in female and Asian representation amongst cardiology journal editorial boards members: a call for empowerment. QJM 2022; 115:830-836. [PMID: 35866641 DOI: 10.1093/qjmed/hcac176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND While progress is evident in gender and ethnic representation in the workplace, this disparity remains prevalent in academic positions. OBJECTIVES We examined gender and Asian ethnic representation in editorial boards of cardiology journals. METHODS A cross-sectional analysis was conducted using publicly available data on Cardiology and Cardiovascular medicine journals in the first quartile of the 2020 Scimago Journal & Country Rank indicator. The proportions of female and Asian editorial board members, associate editors and editors-in-chief were assessed. Subgroup analyses were conducted based on the journal's geographical origin, subspecialty and demographic of the editor-in-chief. RESULTS Seventy-six cardiology journals, involving 8915 editorial board members, were included. Only 19.6% of editorial board members were female, 20.8% Asians and 4.0% Asian females. There were less female representation amongst editors-in-chief (9.9%) compared to associate editors (22.3%). European (18.1%) and North American-based journals (21.1%) had higher female representation compared to Asian-based journals (8.7%). There was lower Asian representation in European (18.1%) and North American-based journals (19.9%) compared to Asian-based journals (72.3%). Females were underrepresented in interventional (14.5%) journals, while Asians were underrepresented in general cardiology (18.3%) and heart failure (18.3%) journals. Journals led by female editors-in-chief had significantly higher female representation compared to male-led ones, while journals with Asian editors-in-chief had greater Asian representation compared to non-Asian led ones. CONCLUSION This study highlights the female and Asian ethnic underrepresentation in academic roles in cardiology journal editorial boards. Further analysis is needed for other ethnicities, while the community pushes towards gender-balanced and ethnic diversity across editorial boards.
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Affiliation(s)
- O Z H Lim
- From the Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore 117597, Singapore
| | - Y Chen
- Department of Cardiology, First Medical Centre of Chinese People's Liberation Army (PLA) General Hospital, Wanshoulu, 100036 Beijing, China
| | - S Dimmeler
- Institute for Cardiovascular Regeneration, Goethe University, Theodor-Stern-Kai 7 60590 Frankfurt am Main, Germany
| | - A W J Yong
- From the Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore 117597, Singapore
| | - H Singh
- From the Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore 117597, Singapore
| | - M L E Sim
- From the Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore 117597, Singapore
| | - G Kong
- From the Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore 117597, Singapore
| | - W H Lim
- From the Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore 117597, Singapore
| | - T T Low
- From the Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore 117597, Singapore
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore
| | - D-W Park
- Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, South Korea
| | - N W S Chew
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore
| | - R Foo
- From the Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore 117597, Singapore
- Department of Cardiology, National University Heart Centre, 5 Lower Kent Ridge Rd, Singapore 119074, Singapore
- Cardiovascular Diseases Translational Research Programme, National University Health Systems, 1E Kent Ridge Rd, Singapore 119228, Singapore
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8
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Chew N, Ng CH, Kong G, Chin YH, Lim O, Lim WH, Dalakoti M, Khoo CM, Kong W, Poh KK, Foo R, Lee CH, Chan MY, Muthiah M, Loh PH. Metabolic associated fatty liver disease increases risk of adverse events after acute coronary syndrome. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1414] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Metabolic Associated Fatty Liver Disease (MAFLD) was recently introduced as an alternative definition for fatty liver, that has been linked to an increased risk of systemic end-organ damage. However, current studies have not examined the impact of MAFLD on patients presenting with acute coronary syndrome (ACS). Here, we present a retrospective analysis on the short and long-term outcomes of ACS patients with MAFLD.
Methods
A retrospective analysis was conducted in a tertiary care centre. Hepatic steatosis and fibrosis was examined with hepatic steatosis index and fibrosis-4 (FIB-4) index. The primary and secondary outcomes of the analysis were long term all-cause mortality, and in-hospital all-cause mortality, stroke, heart failure and cardiogenic shock respectively. Adjusted analysis was conducted for primary and secondary outcomes with covariates including age, sex, race, type of ACS and previous myocardial infarction.
Results
A total of 5770 patients were included in the analysis, and 21% of ACS patients had concomitant MAFLD. MAFLD resulted in a 23% increase in long-term all-cause mortality compared to non-MAFLD (HR: 1.230, CI: 1.065 to 1.420, p=0.005). MAFLD increased the risk of in-hospital mortality, stroke, heart failure and cardiogenic shock compared to non-MAFLD. A sensitivity analysis conducted based on MAFLD with advance fibrosis, chronic kidney disease and diabetes also demonstrated significantly increased effect size magnitude of all-cause mortality, compared to non-MAFLD.
Conclusion
MAFLD represents an encapsulation of metabolism dysregulation and has been associated with increased risk of systematic disease. The present study shows that MAFLD is associated with significantly increased adverse prognostic outcomes after ACS compared to non-MAFLD. An increase in awareness of MAFLD is required beyond the field of hepatology for improvements in multidisciplinary care and management.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Chew
- National University Heart Centre , Singapore , Singapore
| | - C H Ng
- National University Health System , Singapore , Singapore
| | - G Kong
- National University Health System , Singapore , Singapore
| | - Y H Chin
- National University Health System , Singapore , Singapore
| | - O Lim
- National University of Singapore , Singapore , Singapore
| | - W H Lim
- National University of Singapore , Singapore , Singapore
| | - M Dalakoti
- National University of Singapore , Singapore , Singapore
| | - C M Khoo
- National University Health System , Singapore , Singapore
| | - W Kong
- National University Heart Centre , Singapore , Singapore
| | - K K Poh
- National University Heart Centre , Singapore , Singapore
| | - R Foo
- National University Heart Centre , Singapore , Singapore
| | - C H Lee
- National University Heart Centre , Singapore , Singapore
| | - M Y Chan
- National University Heart Centre , Singapore , Singapore
| | - M Muthiah
- National University Health System , Singapore , Singapore
| | - P H Loh
- National University Heart Centre , Singapore , Singapore
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9
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Chew NWS, Ng CH, Kong G, Tan D, Lim WH, Kofidis T, Yip J, Loh PH, Chan KH, Low A, Lee CH, Yeo TC, Tan HC, Chan MY. Reconstructed meta-analysis of percutaneous coronary intervention versus coronary artery bypass grafting for left main disease. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1415] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Randomized controlled trials (RCTs) comparing percutaneous coronary intervention (PCI) with drug-eluting stents and coronary artery bypass grafting (CABG) for patients with left main coronary artery disease (LMCAD) have reported conflicting results.
Objectives
We performed a systematic review from inception to 23 May 2021 and one-stage reconstructed individual-patient data meta-analysis (IPDMA) that included 10-year mortality outcomes.
Methods
The primary outcome was 10-year all-cause mortality. Secondary outcomes included myocardial infarction (MI), stroke and unplanned revascularization at 5 years. We did IPDMA using published Kaplan-Meier curves to provide individual data points in coordinates and numbers at risk were used to increase the calibration accuracy of the reconstructed data. Shared frailty model or, when proportionality assumptions were not met, a restricted mean survival time model were fitted to compare outcomes between treatment groups.
Results
Of 583 articles retrieved, 5 RCTs were included. A total of 4595 patients from these 5 RCTs were randomly assigned to PCI (N=2297) or CABG (N=2298). The cumulative 10-year all-cause mortality after PCI and CABG was 12.0% versus 10.6% respectively (HR 1.093, 95% CI: 0.925–1.292; p=0.296). PCI conferred similar time-to-MI (RMST ratio 1.006, 95% CI: 0.992–1.021, p=0.391) and stroke (RMST ratio 1.005, 95% CI: 0.998–1.013, p=0.133) at 5 years. Unplanned revascularization was more frequent following PCI compared with CABG (HR 1.807, 95% CI: 1.524–2.144, p<0.001) at 5 years.
Conclusion
This meta-analysis using reconstructed participant-level time-to-event data showed no statistically significant difference in cumulative 10-year all-cause mortality between PCI versus CABG in the treatment of LMCAD.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N W S Chew
- National University Heart Centre , Singapore , Singapore
| | - C H Ng
- National University of Singapore , Singapore , Singapore
| | - G Kong
- National University of Singapore , Singapore , Singapore
| | - D Tan
- National University of Singapore , Singapore , Singapore
| | - W H Lim
- National University of Singapore , Singapore , Singapore
| | - T Kofidis
- National University Heart Centre , Singapore , Singapore
| | - J Yip
- National University Heart Centre , Singapore , Singapore
| | - P H Loh
- National University Heart Centre , Singapore , Singapore
| | - K H Chan
- National University Heart Centre , Singapore , Singapore
| | - A Low
- National University Heart Centre , Singapore , Singapore
| | - C H Lee
- National University Heart Centre , Singapore , Singapore
| | - T C Yeo
- National University Heart Centre , Singapore , Singapore
| | - H C Tan
- National University Heart Centre , Singapore , Singapore
| | - M Y Chan
- National University Heart Centre , Singapore , Singapore
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10
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Chew N, Teo V, Tan C, Kong G, Chin YH, Ambhore A, Low A, Lee CH, Chan MY, Tan HC, Ph LOH. A 10-year cohort on prognostic outcomes in patients presenting with acute myocardial infarction complicated by cardiogenic shock and/or cardiac arrest. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1496] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Cardiogenic shock (CS) and cardiac arrest (CA) complicating acute myocardial infarction (AMI) portend unfavourable outcomes. This study examined the prognosis of patients presenting with AMI complicated by CS and/or CA.
Methods
Consecutive patients presented with AMI to a percutaneous coronary intervention-capable tertiary institution between 2011 and 2021 were studied. Patients were stratified based on the presence or absence of CS (CS+ or CS−) and CA (CA+ or CA−). The primary outcome was 30-day cardiovascular-related mortality. Subgroup analyses based on AMI-type and sex were conducted. Kaplan-Meier curves for cardiovascular-related mortality based on the AMI-type and sex were constructed.
Results
The study included 11,608 AMI patients, 283 of whom had CS+/CA+, 1,068 had CS+/CA−, 54 had CS−/CA+ and 10,203 had CS−/CA−. Cardiovascular-related mortality was significantly higher for CS+/CA+ (57.6%), followed by CS+/CA− (41.6%), CS−/CA+ (20.4%) and CS−/CA− (2.4%). Kaplan-Meier curves demonstrated CS+/CA+ group had the highest mortality (HR=36.26; 95% CI: 29.71–44.25, p<0.001), followed by CS+/CA− (HR=21.59; 95% CI: 18.47–25.24, p<0.001) and CS−/CA+ (HR=9.18; 95% CI: 5.02–16.80, p<0.001), with CS−/CA− as the reference. Those with NSTEMI had consistently higher cardiovascular-related mortality rates than their STEMI counterparts for all groups, apart from the CS+/CA+ group. The sex-specific analysis demonstrated that the survival curves for females with CS+/CA+, CS+/CA− and CS−/CA+ converged, whilst the survival curves for males diverged over time. The multivariable Cox regression revealed the presence of CS and CA are independent predictors of cardiovascular-related mortality, but not NSTEMI, when adjusted for age, gender, diabetes, left ventricular ejection fraction, chronic renal failure, and culprit vessel.
Conclusions
AMI associated with CA and CS portends the least favourable survival, followed by those with CS or CA alone. Excess mortality was observed in the traditionally perceived lower-risk groups, particularly in women. This calls for increased awareness amongst clinicians when managing this subset of high-risk patients.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Chew
- National University Heart Centre , Singapore , Singapore
| | - V Teo
- National University of Singapore , Singapore , Singapore
| | - C Tan
- National University of Singapore , Singapore , Singapore
| | - G Kong
- National University of Singapore , Singapore , Singapore
| | - Y H Chin
- National University of Singapore , Singapore , Singapore
| | - A Ambhore
- National University Heart Centre , Singapore , Singapore
| | - A Low
- National University Heart Centre , Singapore , Singapore
| | - C H Lee
- National University Heart Centre , Singapore , Singapore
| | - M Y Chan
- National University Heart Centre , Singapore , Singapore
| | - H C Tan
- National University Heart Centre , Singapore , Singapore
| | - L O H Ph
- National University Heart Centre , Singapore , Singapore
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11
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Chew NWS, Zhang A, Koh S, Ong JL, Kong G, Lim O, Kuntjoro I, Kong W, Low A, Lee CH, Chan MY, Yeo TC, Tan HC, Poh KK, Loh PH. Higher long-term mortality in patients with concomitant acute coronary syndrome and aortic stenosis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1417] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Aortic stenosis (AS) and acute coronary syndrome (ACS) share similar cardiovascular risk factors, and their concomitant presentation is increasing in incidence with the aging population. Yet literature regarding the prognosis of patients with concomitant ACS and AS remains scarce.
Methods
This retrospective cohort study examined consecutive patients presenting with ACS (ST-segment elevation myocardial infarction [STEMI] and non-STEMI [NSTEMI]) and concomitant AS between 1 January 2011 and 31 March 2021 in a tertiary hospital. The cohort was divided into mild, moderate and severe AS based on index echocardiogram. The primary outcome was all-cause mortality. Kaplan-Meier curves were constructed to compare all-cause mortality among the three groups of patients, based on ACS type and left ventricular ejection fraction (LVEF). Multivariable Cox regression was performed to identify independent predictors of all-cause mortality.
Results
Of a total of 563 patients, 264 had mild (46.9%), 193 moderate (34.3%) and 106 severe AS (18.8%). The mean follow-up duration was 2.5 (± 2.4) years. Majority of patients (72.5%) presented with NSTEMI. Patients with moderate and severe AS had higher rates of all-cause mortality compared to those with mild AS (49.7% vs. 51.4% vs. 35.6% respectively, p=0.002). Concomitant moderate (HR 1.439, 95% CI 1.012–2.048, p=0.043) and severe AS (HR 1.844, 95% CI 1.159–2.933, p=0.010) were independent predictors of all-cause mortality after adjusting for age, gender, LVEF, ACS type, chronic kidney disease, diabetes, hypertension, coronary artery bypass grafting and aortic valve replacement as a time-dependent variable. The Kaplan-Meier curves demonstrated excess mortality in moderate and severe AS, compared to the mild AS group (p<0.001), with similar survival trends observed in the STEMI and the NSTEMI groups, as well as those with preserved LVEF.
Conclusion
Regardless of the ACS presentation type, long-term excess mortality in those with concomitant moderate or severe AS was observed. The adverse prognosis typically observed in patients with concomitant severe AS, in the setting of ACS, extends to patients with moderate AS.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N W S Chew
- National University Heart Centre , Singapore , Singapore
| | - A Zhang
- National University Heart Centre , Singapore , Singapore
| | - S Koh
- National University Heart Centre , Singapore , Singapore
| | - J L Ong
- National University Heart Centre , Singapore , Singapore
| | - G Kong
- National University Heart Centre , Singapore , Singapore
| | - O Lim
- National University Heart Centre , Singapore , Singapore
| | - I Kuntjoro
- National University Heart Centre , Singapore , Singapore
| | - W Kong
- National University Heart Centre , Singapore , Singapore
| | - A Low
- National University Heart Centre , Singapore , Singapore
| | - C H Lee
- National University Heart Centre , Singapore , Singapore
| | - M Y Chan
- National University Heart Centre , Singapore , Singapore
| | - T C Yeo
- National University Heart Centre , Singapore , Singapore
| | - H C Tan
- National University Heart Centre , Singapore , Singapore
| | - K K Poh
- National University Heart Centre , Singapore , Singapore
| | - P H Loh
- National University Heart Centre , Singapore , Singapore
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12
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Chew N, Zhang A, Kong G, Lee KL, Ng CH, Chong B, Ngiam N, Loh PH, Kuntjoro I, Wong R, Kong W, Yeo TC, Poh KK. Prognostically distinct phenotypes of metabolic health beyond obesity in aortic stenosis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1608] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Whilst current evidence are in favour of metabolic health and non-obesity in the reduction of incident cardiovascular disease, little is known regarding the prognosis across the metabolic phenotypes once cardiovascular disease occurs. This study examined the prognosis of patients with significant aortic stenosis (AS) based on the presence of metabolic health and obesity.
Methods
This retrospective cohort on consecutive patients presenting with moderate-to-severe AS to a tertiary hospital between 2010 and 2015. Patients were allocated into 4 groups based on obesity and metabolic health: metabolically healthy obese (MHO), metabolically healthy non-obese (MHNO), metabolically unhealthy obese (MUO) and metabolically unhealthy non-obese (MUNO). Metabolic health was defined in accordance to Program Adult Treatment Panel III criteria. The primary outcome was all-cause mortality. Cox regression examined independent associations between mortality and metabolic phenotypes, adjusting for aortic valve area, ejection fraction, age, sex, chronic kidney disease and AVR as a time-dependent covariate.
Results
Of 727 patients, the majority (51.6%) were MUNO, followed by MUO (32.7%), MHNO (11.4%), and MHO (4.3%). MHNO had the highest mortality (43.0%), followed by the MUNO (37.5%), MUO (30.0%) and MHO (6.9%) groups (p=0.001). Compared to MHNO, MHO (HR 0.159, 95% CI 0.038–0.668, p=0.012) and MUO (HR 0.614, 95% CI 0.403–0.937, p=0.024) were independently associated with lower all-cause mortality rates, after adjusting for confounders. In obese patients, metabolic health had favourable survival compared to metabolically unhealthy (p=0.015), but this protective impact of metabolic health was not observed in overweight or normal weight individuals. Obesity had favourable survival compared to overweight and normal weight, in both metabolically health (p=0.002) and unhealthy (p=0.007) patients,
Conclusion
MHO patients with AS have the most favourable prognosis whilst the seemingly healthy MHNO group had the worst survival. There should be a paradigm shift towards prioritising metabolic health rather than weight reduction in patients with significant AS.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Chew
- National University Heart Centre , Singapore , Singapore
| | - A Zhang
- National University Health System , Singapore , Singapore
| | - G Kong
- National University of Singapore , Singapore , Singapore
| | - K L Lee
- National University of Singapore , Singapore , Singapore
| | - C H Ng
- National University of Singapore , Singapore , Singapore
| | - B Chong
- National University of Singapore , Singapore , Singapore
| | - N Ngiam
- National University Health System , Singapore , Singapore
| | - P H Loh
- National University Heart Centre , Singapore , Singapore
| | - I Kuntjoro
- National University Heart Centre , Singapore , Singapore
| | - R Wong
- National University Heart Centre , Singapore , Singapore
| | - W Kong
- National University Heart Centre , Singapore , Singapore
| | - T C Yeo
- National University Heart Centre , Singapore , Singapore
| | - K K Poh
- National University Heart Centre , Singapore , Singapore
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13
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Chew N, Kong G, Ng CH, S V, Chin YH, Muthiah MY, Khoo CM, Chai PH, Foo R, Chan MY, Loh PH. The prognostic outcomes of acute myocardial infarction stratified according to metabolic health and obesity status. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1413] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
There has been emerging evidence on the favourable cardiovascular disease incidence in non-obese subjects with healthy metabolism. However, little is known regarding the prognosis across the metabolic phenotypes once cardiovascular disease is established. This study examines the prognosis of patients with acute myocardial infarction (AMI) stratified according to metabolic health and obesity status.
Methods
A retrospective study conducted in a tertiary hospital between 2014–2021. Consecutive patients with AMI were allocated into 4 groups based on metabolic and obesity profile: metabolically healthy obesity (MHO), metabolically healthy non-obesity (MHNO), metabolically unhealthy obesity (MUO) and metabolically unhealthy non-obesity (MUNO). The primary outcome was all-cause mortality. Cox regression examined the independent association between mortality and metabolic phenotypes, adjusting for age, sex, AMI type and ejection fraction.
Results
A total of 9958 patients were studied with majority (68.5%) in the MUNO group, followed by MUO (25.1%), MHNO (5.6%), and MHO (0.8%). MHO patients had lowest mortality (7.4%), followed by MHNO (9.7%), MUO (19.2%) and MUNO (22.6%, p<0.001). Relative to MHNO, MUO (HR 1.610, 95% CI 1.198–2.163, p=0.002) and MUNO (HR 1.383, 95% CI 1.043–1.835, p=0.024) had significantly higher mortality risk, but not MHO (HR 1.514, 95% CI 0.649–3.534, p=0.337), after adjusting for confounders. Kaplan-Meier curves showed favourable survival in metabolically healthy groups with clear divergence from metabolically unhealthy groups (p<0.001). There were stepwise increments in mortality with increasing number of metabolic risk factors regardless of obesity status (p<0.001). Favourable survival was observed in overweight and obese versus normal weight patients regardless of metabolic health.
Conclusion
Metabolically healthy AMI patients had favourable prognosis compared to metabolically unhealthy patients. The obesity paradox was observed in the AMI cohort, but the beneficial effects of obesity appeared not as pronounced in magnitude as in metabolically healthy groups.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Chew
- National University Heart Centre , Singapore , Singapore
| | - G Kong
- National University of Singapore , Singapore , Singapore
| | - C H Ng
- National University of Singapore , Singapore , Singapore
| | - V S
- National University of Singapore , Singapore , Singapore
| | - Y H Chin
- National University of Singapore , Singapore , Singapore
| | - M Y Muthiah
- National University Health System , Singapore , Singapore
| | - C M Khoo
- National University Health System , Singapore , Singapore
| | - P H Chai
- National University Heart Centre , Singapore , Singapore
| | - R Foo
- National University Heart Centre , Singapore , Singapore
| | - M Y Chan
- National University Hospital, Division of Gastroenterology and Hepatology , Singapore , Singapore
| | - P H Loh
- National University Heart Centre , Singapore , Singapore
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14
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Kong G, Lee H, Vo TTT, Juang U, Kwon SH, Park J, Park J, Kim SH. Functional characteristics and research trends of PDE11A in human diseases (Review). Mol Med Rep 2022; 26:298. [PMID: 35929507 PMCID: PMC9434997 DOI: 10.3892/mmr.2022.12814] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 06/15/2022] [Indexed: 11/06/2022] Open
Abstract
cAMP and cGMP are important secondary messengers involved in cell regulation and metabolism driven by the G protein-coupled receptor. cAMP is converted via adenylyl cyclase (AC) and activates protein kinase A to phosphorylate intracellular proteins that mediate specific responses. cAMP signaling serves a role at multiple steps in tumorigenesis. The level of cAMP is increased in association with cancer cell formation through activation of AC-stimulatory G protein by mutation. Phosphodiesterases (PDEs) hydrolyze cAMP and cGMP to AMP and GMP. PDEs are composed of 11 families, and each can hydrolyze cAMP and cGMP or both cAMP and cGMP. PDEs perform various roles depending on their location and expression site, and are involved in several diseases, including male erectile dysfunction, pulmonary hypertension, Alzheimer's disease and schizophrenia. PDE11A is the 11th member of the PDE family and is characterized by four splice variants with varying tissue expression and N-terminal regulatory regions. Among tissues, the expression of PDE11A was highest in the prostate, and it was also expressed in hepatic skeletal muscle, pituitary, pancreas and kidney. PDE11A is the first PDE associated with an adrenocortical tumor associated genetic condition. In several studies, three PDE11A mutations have been reported in patients with Cushing syndrome with primary pigmented nodular adrenocortical disease or isolated micronodular adrenocortical disease without other genetic defects. It has been reported that an increase in PDE11A expression affects the proliferation of glioblastoma and worsens patient prognosis. The present mini-review summarizes the location of PDE11A expression, the impact of structural differences and disease relevance.
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Affiliation(s)
- Gyeyeong Kong
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Hyunji Lee
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Thuy-Trang T Vo
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Uijin Juang
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - So Hee Kwon
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon 21983, Republic of Korea
| | - Jisoo Park
- Mitos Research Institute, Mitos Therapeutics Inc., Daejeon 34134, Republic of Korea
| | - Jongsun Park
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Seon-Hwan Kim
- Department of Neurosurgery, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
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15
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Halfdanarson T, Halperin D, Reidy-Lagunes D, Kong G, Mailman J, Herrmann K, Sri Rajaskanthan R, Leyden S, Capdevila Castillon J, Sierras C, Harris P. 902TiP COMPOSE: Pivotal phase III trial to compare 177Lu-edotreotide with best standard of care for well-differentiated aggressive grade 2 and grade 3 gastroenteropancreatic neuroendocrine tumours. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1028] [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: 11/29/2022] Open
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16
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Tran Q, Lee H, Jung JH, Chang SH, Shrestha R, Kong G, Park J, Kim SH, Park KS, Rhee HW, Yun J, Cho MH, Kim KP, Park J. Emerging role of LETM1/GRP78 axis in lung cancer. Cell Death Dis 2022; 13:543. [PMID: 35680871 PMCID: PMC9184611 DOI: 10.1038/s41419-022-04993-5] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 05/26/2022] [Accepted: 05/31/2022] [Indexed: 01/21/2023]
Abstract
The selective autophagy of damaged mitochondria is called mitophagy. Mitochondrial dysfunction, mitophagy, and apoptosis have been suggested to be interrelated in various human lung carcinomas. Leucine zipper EF-hand-containing transmembrane protein-1 (LETM1) was cloned in an attempt to identify candidate genes for Wolf-Hirschhorn syndrome. LETM1 plays a role in mitochondrial morphology, ion homeostasis, and cell viability. LETM1 has also been shown to be overexpressed in different human cancer tissues, including lung cancer. In the current study, we have provided clear evidence that LETM1 acts as an anchoring protein for the mitochondria-associated ER membrane (MAM). Fragmented mitochondria have been found in lung cancer cells with LETM1 overexpression. In addition, a reduction of mitochondrial membrane potential and significant accumulation of microtubule-associated protein 1 A/1B-light chain 3 punctate, which localizes with Red-Mito, was found in LETM1-overexpressed cells, suggesting that mitophagy is upregulated in these cells. Interestingly, glucose-regulated protein 78 kDa (GRP78; an ER chaperon protein) and glucose-regulated protein 75 kDa (GRP75) were posited to interact with LETM1 in the immunoprecipitated LETM1 of H460 cells. This interaction was enhanced in cells treated with carbonyl cyanide m-chlorophenylhydrazone, a chemical mitophagy inducer. Treatment of cells with honokiol (a GRP78 inhibitor) blocked LETM1-mediated mitophagy, and CRISPR/Cas9-mediated GRP75 knockout inhibited LETM1-induced autophagy. Thus, GRP78 interacts with LETM1. Taken together, these observations support the notion that the complex formation of LETM1/GRP75/GRP78 might be an important step in MAM formation and mitophagy, thus regulating mitochondrial quality control in lung cancer.
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Affiliation(s)
- Quangdon Tran
- grid.254230.20000 0001 0722 6377Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea ,grid.254230.20000 0001 0722 6377Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea ,Molecular Biology Laboratory, Department of Medical Laboratories, Hai Phong International Hospital, Hai Phong City, #18000 Vietnam
| | - Hyunji Lee
- grid.254230.20000 0001 0722 6377Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea ,grid.254230.20000 0001 0722 6377Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea
| | - Jae Hun Jung
- grid.289247.20000 0001 2171 7818Department of Applied Chemistry, College of Applied Sciences, Kyunghee University, Yongin, 17104 South Korea
| | - Seung-Hee Chang
- grid.31501.360000 0004 0470 5905Laboratory of Toxicology, College of Veterinary Medicine Seoul National University, Seoul, 08826 South Korea
| | - Robin Shrestha
- grid.254230.20000 0001 0722 6377Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea ,grid.254230.20000 0001 0722 6377Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea
| | - Gyeyeong Kong
- grid.254230.20000 0001 0722 6377Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea ,grid.254230.20000 0001 0722 6377Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea
| | - Jisoo Park
- grid.254230.20000 0001 0722 6377Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea ,grid.254230.20000 0001 0722 6377Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea ,grid.411948.10000 0001 0523 5122Department of Life Science, Hyehwa Liberal Arts College, Daejeon University, Daejeon, 34520 South Korea
| | - Seon-Hwan Kim
- grid.254230.20000 0001 0722 6377Department of Neurosurgery, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea
| | - Kyu-Sang Park
- grid.15444.300000 0004 0470 5454Department of Physiology and Institute of Lifestyle Medicine, Yonsei University Wonju College of Medicine, Wonju, 26427 Korea
| | - Hyun-Woo Rhee
- grid.42687.3f0000 0004 0381 814XDepartment of Chemistry, Ulsan National Institute of Science and Technology, Ulsan, 44919 Korea
| | - Jeanho Yun
- grid.255166.30000 0001 2218 7142Mitochondria Hub Regulation Center, College of Medicine, Dong-A University, Busan, 49201 South Korea
| | - Myung-Haing Cho
- grid.31501.360000 0004 0470 5905Laboratory of Toxicology, College of Veterinary Medicine Seoul National University, Seoul, 08826 South Korea ,RNABIO, Seongnam, Gyeonggi-do 13201 South Korea
| | - Kwang Pyo Kim
- grid.289247.20000 0001 2171 7818Department of Applied Chemistry, College of Applied Sciences, Kyunghee University, Yongin, 17104 South Korea
| | - Jongsun Park
- grid.254230.20000 0001 0722 6377Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea ,grid.254230.20000 0001 0722 6377Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, 35015 South Korea
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17
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Fang J, Kong G, Wang Y, Pan K. Association between serum creatinine level within normal range and bone mineral density in adolescents. Arch Pediatr 2022; 29:364-369. [DOI: 10.1016/j.arcped.2022.05.002] [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] [Received: 06/15/2021] [Revised: 10/25/2021] [Accepted: 05/12/2022] [Indexed: 10/18/2022]
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18
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Michael M, Thursfield V, Te Marvelde L, Kong G, Hicks RJ. Incidence, prevalence, and survival trends for neuroendocrine neoplasms in Victoria, Australia, from 1982 to 2019: Based on site, grade, and region. Asia Pac J Clin Oncol 2021; 18:e306-e317. [PMID: 34821050 DOI: 10.1111/ajco.13671] [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: 07/29/2021] [Accepted: 08/17/2021] [Indexed: 11/28/2022]
Abstract
AIMS Neuroendorcine neoplasms (NENs) are rare tumors characterised by variable biology and delayed diagnosis. Several population studies have reported a marked increased incidence over time. The objectives of this analysis were to describe within Victoria (the second largest Australian state, 6.4 Million) the trends for NENs incidence/survival over nearly 38 years (1982-2019), and regional differences in survival. METHODS All NEN cases were identified from the Victorian Cancer Registry over four time periods: 1982-1989, 1990-1999, 2000-2009, and 2010-2019. Data collected included primary tumor site, histological grade, gender, overall survival (OS), and place of residence. Incidence data were analyzed with the generation of annual standardized rates (ASR). OS was assessed for the entire cohort and between geographical regions. RESULTS The overall NEN population (1982-2019) included 8,106 patients: over 60% grade 1/2 NENs, especially small bowel and colorectal. The number of new diagnoses increased over three-fold over time for the overall cohort and by tumoral categories. The ASR increased similarly, especially pancreatic NENs (4.3-fold) and differed between genders. The 5-year OS rates and median OS increased over time for the overall cohort: from 52% to 67% (p < 0.001). OS was greater for NEN patients residing in major cities relative to regional/remote areas (p = 0.01). CONCLUSION This population-wide analysis with over 38 years of data has confirmed the international trends of the increased incidence, prevalence, and OS of NEN patients regardless of primary site or histological grade. The analysis also observed a difference in survival outcome in rural/remote versus urban areas.
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Affiliation(s)
- M Michael
- Neuroendocrine Tumour Service, a European Neuroendocrine Tumor Society Centre of Excellence, Peter MacCallum Cancer Centre, Melbourne, Australia.,Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia
| | - V Thursfield
- Victorian Cancer Registry, Cancer Council Victoria, Melbourne, Australia
| | - L Te Marvelde
- Victorian Cancer Registry, Cancer Council Victoria, Melbourne, Australia
| | - G Kong
- Neuroendocrine Tumour Service, a European Neuroendocrine Tumor Society Centre of Excellence, Peter MacCallum Cancer Centre, Melbourne, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia.,Nuclear Medicine Department, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - R J Hicks
- Neuroendocrine Tumour Service, a European Neuroendocrine Tumor Society Centre of Excellence, Peter MacCallum Cancer Centre, Melbourne, Australia.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, Australia.,Nuclear Medicine Department, Peter MacCallum Cancer Centre, Melbourne, Australia
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19
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Sandhu S, Joshua A, Emmett L, Spain L, Horvath L, Crumbaker M, Anton A, Wallace R, Pasam A, Bressel M, Cassidy E, Banks P, Kumar A, Alipour R, Akhurst T, Kong G, Davis I, Williams S, Hicks R, Hofman M. 577O PRINCE: Interim analysis of the phase Ib study of 177Lu-PSMA-617 in combination with pembrolizumab for metastatic castration resistant prostate cancer (mCRPC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1090] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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20
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Kong G, Lee H, Tran Q, Kim C, Park J, Kwon SH, Kim SH, Park J. Corrigendum: Current Knowledge on the Function of α-Methyl Acyl-CoA Racemase in Human Diseases. Front Mol Biosci 2021; 8:639164. [PMID: 33842543 PMCID: PMC8029588 DOI: 10.3389/fmolb.2021.639164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 01/22/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Gyeyeong Kong
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Hyunji Lee
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Quangdon Tran
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Chaeyeong Kim
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Jisoo Park
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Life Science, Hyehwa Liberal Arts College, LINC Plus Project Group, Daejeon University, Daejeon, South Korea
| | - So Hee Kwon
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, South Korea
| | - Seon-Hwan Kim
- Department of Neurosurgery, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Jongsun Park
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
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21
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Sui X, He X, Song Z, Gao Y, Zhao L, Jiao F, Kong G, Li Y, Han S, Wang B. The gene NtMYC2a acts as a 'master switch' in the regulation of JA-induced nicotine accumulation in tobacco. Plant Biol (Stuttg) 2021; 23:317-326. [PMID: 33236500 DOI: 10.1111/plb.13223] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/05/2020] [Indexed: 06/11/2023]
Abstract
The biosynthesis and transport of nicotine has been shown to be coordinately upregulated by jasmonate (JA). MYC2, a member of basic helix-loop-helix (bHLH) transcription factor family, is well-documented as the core player in the JA signalling pathway to regulate diverse plant development processes. Four MYC2 genes were found in the tobacco genome, NtMYC2a/2b and 1a/1b. In this study, we tested whether one of them, NtMYC2a, acts as a 'master switch' in the regulation of nicotine biosynthesis and transport in tobacco. We generated NtMYC2a knockout tobacco plants using the CRISPR-Cas9 technique and analysed the effect of NtMYC2a knockout on expression of the nicotine biosynthesis genes (NtAO, NtQS, NtPMT1a, NtQPT2, NtODC2, NtMPO1, NtA622 and NtBBLa) and transport genes (NtMATE2 and NtJAT1), as well as leaf accumulation of nicotine in the NtMYC2a knockout plants. We found that all the nicotine biosynthesis and transport genes tested in this study were significantly downregulated (>50% reduction compared with wild-type control) in the NtMYC2a knockout plants. Moreover, the leaf nicotine content in knockout plants was dramatically reduced by ca 80% compared with the wild-type control. These results clearly show that NtMYC2a acts as a 'master switch' to coordinate JA-induced nicotine accumulation in tobacco and suggests that NtMYC2a might play an important role in tobacco nicotine-mediated defence against herbivory.
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Affiliation(s)
- X Sui
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - X He
- Technology Center, Baoshan Oriental Tobacco Company, Baoshan, China
| | - Z Song
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Y Gao
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - L Zhao
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - F Jiao
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - G Kong
- Chemical Analysis Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - Y Li
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
| | - S Han
- College of Life Sciences, Beijing Normal University, Beijing, China
| | - B Wang
- Tobacco Breeding Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China
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22
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Lee H, Kim M, Kim SH, Tran Q, Kong G, Kim C, Kwon SH, Park J, Park JB, Park S, Park J. Alpha-Methylacyl-CoA Racemase (AMACR), a Potential New Biomarker for Glioblastoma. Front Oncol 2020; 10:550673. [PMID: 33154941 PMCID: PMC7590573 DOI: 10.3389/fonc.2020.550673] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 08/21/2020] [Indexed: 11/13/2022] Open
Abstract
Alpha-Methylacyl-CoA racemase (AMACR), which was initially discovered as a prostate cancer marker, is critical for the chiral inversion mechanism of branched-chain fatty acids. However, the function of AMACR in brain tumors has not been investigated. In this study, AMACR appeared to be involved in glioblastoma. The protein and mRNA levels of AMACR were highly elevated in glioblastoma. Downregulation of AMACR inhibited cell proliferation. Comprehensive analysis of the public REMBRANDT GBM dataset also confirmed that the level of AMACR expression was correlated with the clinical prognosis of glioma patients. In summary, these findings indicate that AMACR expression is increased in a glioblastoma cell line and glioma patients, suggesting that AMACR might be a potential diagnostic marker and therapeutic target for cancer, including glioma.
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Affiliation(s)
- Hyunji Lee
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Minhee Kim
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Seon-Hwan Kim
- Department of Neurosurgery, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Quangdon Tran
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Gyeyeong Kong
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Chaeyeong Kim
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - So Hee Kwon
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, South Korea
| | - Jisoo Park
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Life Science, Hyehwa Liberal Arts College, LINC Plus Project Group, Daejeon University, Daejeon, South Korea
| | - Jin Bong Park
- Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Physiology, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Sungjin Park
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Jongsun Park
- Department of Pharmacology, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, College of Medicine, Chungnam National University, Daejeon, South Korea
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23
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Kong G, Lee H, Tran Q, Kim C, Park J, Kwon SH, Kim SH, Park J. Current Knowledge on the Function of α-Methyl Acyl-CoA Racemase in Human Diseases. Front Mol Biosci 2020; 7:153. [PMID: 32760737 PMCID: PMC7372137 DOI: 10.3389/fmolb.2020.00153] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 03/13/2020] [Accepted: 06/18/2020] [Indexed: 01/22/2023] Open
Abstract
Branched chain fatty acids perform very important functions in human diet and drug metabolism. they cannot be metabolized in mitochondria and are instead processed and degraded in peroxisomes due to the presence of methyl groups on the carbon chains. Oxidative degradation pathways for lipids include α- and β-oxidation and several pathways. In all metabolic pathways, α-methyl acyl-CoA racemase (AMACR) plays an essential role by regulating the metabolism of lipids and drugs. AMACR regulates β-oxidation of branched chain lipids in peroxisomes and mitochondria and promotes chiral reversal of 2-methyl acids. AMACR defects cause sensory-motor neuronal and liver abnormalities in humans. These phenotypes are inherited and are caused by mutations in AMACR. In addition, AMACR has been found to be overexpressed in prostate cancer. In addition, the protein levels of AMACR have increased significantly in many types of cancer. Therefore, AMACR may be an important marker in tumors. In this review, a comprehensive overview of AMACR studies in human disease will be described.
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Affiliation(s)
- Gyeyeong Kong
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Hyunji Lee
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Quangdon Tran
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Chaeyeong Kim
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Jisoo Park
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
- Department of Life Science, Hyehwa Liberal Arts College, LINC Plus Project Group, Daejeon University, Daejeon, South Korea
| | - So Hee Kwon
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, South Korea
| | - Seon-Hwan Kim
- Department of Neurosurgery, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Jongsun Park
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea
- Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
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24
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Cheng ZX, Kong G, Zhang CL, Zhao YN. [Letrozole versus gonadotropin-releasing hormone antagonist during luteal phase in the prevention of ovarian hyperstimulation syndrome: a randomized controlled trial]. Zhonghua Fu Chan Ke Za Zhi 2020; 55:9-14. [PMID: 32074767 DOI: 10.3760/cma.j.issn.0529-567x.2020.01.003] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore and compare the preventive effect of using letrozole and gonadotropin-releasing hormone (GnRH) antagonist during luteal phase of patients at high risk for ovarian hyperstimulation syndrome (OHSS). Methods: A total of 99 infertile women undergoing in vitro fertilization and embryo transfer or intracytoplasmic sperm injection with high risk for OHSS were enrolled in this randomized controlled trial.The letrozole group (n=51) received letrozole of 7.5 mg daily for 3 days;the GnRH antagonist group (n=48) were given cetrorelix of 0.25 mg subcutaneously daily for 3 days. Both groups received support therapy combined with embryo cryopreservation. The incidence of OHSS was surveyed. And the serum concentration of estradiol, LH and progesterone on days 3, 5 and 8 after oocytes retrieval were measured. Results: There were no statistical differences in terms of baseline characteristics of patients and outcomes of controlled ovarian hyperstimulation between the two groups.The incidence of moderate and severe OHSS was found no significantly difference between letrozole group [11.8%(6/51)] and GnRH antagonist group [10.4%(5/48);P>0.05]. The estradiol concentration of the indicated days on days 3,5 and 8 after oocytes retrieval in letrozole group and GnRH antagonist group were (1 417±3 543) versus (15 210±9 921) pmol/L, (1 692±4 330) versus (18 680±11 567) pmol/L, (239±336) versus (3 582±5 427) pmol/L, respectively;compared with GnRH antagonist group, the estradiol level was significantly lower in the letrozole group (all P<0.01). The luteinizing hormone level in the letrozole group were (0.46±0.40), (0.56±0.55)and (0.67±0.58) U/L on days 3,5 and 8 after oocytes retrieval, which were significantly higher than those of GnRH antagonist group [(0.28±0.28), (0.30±0.19) and (0.45±0.37) U/L, respectively; all P<0.05]. There was no obvious differences on progesterone levels between letrozole group and GnRH antagonist group (all P>0.05),and on days 8 after oocytes retrieval,the level of progesterone in each group were significantly lower than those on day 3 and 5 after oocytes retrieval (P<0.05). Conclusion: Letrozole has the same efficiency as GnRH antagonist for the prevention of OHSS, faster and cheaper to use, but its efficacy seems not to be related to the suppression of steroidogenic during the luteal phase.
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Affiliation(s)
- Z X Cheng
- Center for Reproductive Medicine, Shenyang Women and Children's Hospital, Shenyang 110004, China
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25
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Abstract
Metabolic syndrome is an important public health issue and is associated with a more affluent lifestyle. Many studies of metabolic syndrome have been reported, but its pathogenesis remains unclear and there is no effective treatment. The ability of natural compounds to ameliorate metabolic syndrome is currently under investigation. Unlike synthetic chemicals, such natural products have proven utility in various fields. Recently, ginsenoside extracted from ginseng and ginseng root are representative examples. For example, ginseng is used in dietary supplements and cosmetics. In addition, various studies have reported the effects of ginsenoside on metabolic syndromes such as obesity, diabetes, and hypertension. In this review, we describe the potential of ginsenoside Rg3, a component of ginseng, in the treatment of metabolic syndrome.
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Affiliation(s)
- Hyunji Lee
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Gyeyeong Kong
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Quangdon Tran
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Chaeyeong Kim
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
| | - Jisoo Park
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Life Science, Hyehwa Liberal Arts College, Daejeon University, Daejeon, South Korea
| | - Jongsun Park
- Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon, South Korea.,Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon, South Korea
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26
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Tran Q, Lee H, Kim C, Kong G, Gong N, Kwon SH, Park J, Kim SH, Park J. Revisiting the Warburg Effect: Diet-Based Strategies for Cancer Prevention. Biomed Res Int 2020; 2020:8105735. [PMID: 32802877 PMCID: PMC7426758 DOI: 10.1155/2020/8105735] [Citation(s) in RCA: 12] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/15/2020] [Accepted: 07/18/2020] [Indexed: 12/11/2022]
Abstract
It is widely acknowledged that cancer cell energy metabolism relies mainly on anaerobic glycolysis; this phenomenon is described as the Warburg effect. However, whether the Warburg effect is caused by genetic dysregulation in cancer or is the cause of cancer remains unknown. The exact reasons and physiology of this abnormal metabolism are unclear; therefore, many researchers have attempted to reduce malignant cell growth in tumors in preclinical and clinical studies. Anticancer strategies based on the Warburg effect have involved the use of drug compounds and dietary changes. We recently reviewed applications of the Warburg effect to understand the benefits of this unusual cancer-related metabolism. In the current article, we summarize diet strategies for cancer treatment based on the Warburg effect.
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Affiliation(s)
- Quangdon Tran
- 1Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
- 2Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Hyunji Lee
- 1Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
- 2Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Chaeyeong Kim
- 1Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
- 2Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Gyeyeong Kong
- 1Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
- 2Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Nayoung Gong
- 1Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
- 2Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - So Hee Kwon
- 3College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon 21983, Republic of Korea
| | - Jisoo Park
- 4Department of Life Science, Hyehwa Liberal Arts College, Daejeon University, Daejeon 34520, Republic of Korea
| | - Seon-Hwan Kim
- 5Department of Neurosurgery, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
| | - Jongsun Park
- 1Department of Pharmacology, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
- 2Department of Medical Science, Metabolic Syndrome and Cell Signaling Laboratory, Institute for Cancer Research, College of Medicine, Chungnam National University, Daejeon 35015, Republic of Korea
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Kong G, Qi XJ, Wang JF. Effect of lncRNA LET on proliferation and invasion of osteosarcoma cells. Eur Rev Med Pharmacol Sci 2019; 22:1609-1614. [PMID: 29630103 DOI: 10.26355/eurrev_201803_14567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the expression of long non-coding RNA (LncRNA) LET in osteosarcoma and its effect on the proliferation, apoptosis, migration and invasion of osteosarcoma cells. PATIENTS AND METHODS The expression of lncRNA LET was detected in osteosarcoma tissues and cell lines (MG63 and hFOB1.19). MG63 cells stably overexpressing lncRNA LET were constructed by lentiviral. The effects of lncRNA LET overexpression on the proliferation, apoptosis, migration and invasion of osteosarcoma cells were detected by cell counting kit-8 (CCK-8), flow cytometry and transwell chamber assay. RESULTS The expression of lncRNA LET in osteosarcoma tissues and MG63 cells was significantly down-regulated. Overexpression of lncRNA LET significantly inhibited the proliferation, migration, invasion, and induced apoptosis of MG63 cells. CONCLUSIONS LncRNA LET was participated in the development of osteosarcoma, and may be used as a potential molecular target for the treatment of osteosarcoma.
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Affiliation(s)
- G Kong
- Department of Joint Orthopedics, Yantaishan Hospital, Yantai, Shandong, China.
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Lu Z, Hong CC, Jark PC, Assumpção ALFV, Bollig N, Kong G, Pan X. JAK1/2 Inhibitors AZD1480 and CYT387 Inhibit Canine B-Cell Lymphoma Growth by Increasing Apoptosis and Disrupting Cell Proliferation. J Vet Intern Med 2017; 31:1804-1815. [PMID: 28960447 PMCID: PMC5697192 DOI: 10.1111/jvim.14837] [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: 02/08/2017] [Revised: 07/18/2017] [Accepted: 08/22/2017] [Indexed: 12/18/2022] Open
Abstract
Background Canine diffuse large B‐cell lymphoma (DLBCL) is a common and aggressive hematologic malignancy. The lack of conventional therapies with sustainable efficacy warrants further investigation of novel therapeutics. The Janus kinase (JAK) and signal transducer and activator of transcription (STAT) pathways play important roles in the pathogenesis of hematologic malignancies in humans including DLBCLs. AZD1480 and CYT387 are novel JAK1/2 inhibitors that have been used in clinical trials for treating various hematologic cancers in humans. No studies have characterized the antitumor effects of JAK inhibitors on DLBCL in dogs. Hypothesis/Objectives We hypothesize that JAK1/2 inhibitors AZD1480 and CYT387 can effectively inhibit growth of canine DLBCL in vitro. We aim to assess the antitumor activity of AZD1480 and CYT387 in canine DLBCL and to determine the underlying mechanisms of action. Methods In vitro study of canine lymphoma cell growth, proliferation, and apoptosis by viability, proliferation and apoptosis assays. Results A significant decrease in viable canine lymphoma cells was observed after AZD1480 and CYT387 treatments. In addition, AZD1480 and CYT387 treatment resulted in decreased lymphoma cell proliferation and increased early apoptosis. Conclusion and Clinical Importance AZD1480 and CYT387 inhibit canine lymphoma cell growth in a dose‐dependent manner. Our findings justify further phase I/II clinical investigations of the safety and efficacy of JAK1/2 inhibitors in canine DLBCL and suggest new opportunities for novel anticancer therapies.
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Affiliation(s)
- Z Lu
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI
| | - C C Hong
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI
| | - P C Jark
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI.,Universidae Estadual Paulista Julio de Mesquita Filho-Campus de Jaboticabal, Jaboticabal, SP, Brazil
| | - A L F V Assumpção
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI
| | - N Bollig
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI
| | - G Kong
- National Local Joint Engineering Research Center of Biodiagnostics and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Pan
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI.,Carbone Cancer Center, University of Wisconsin-Madison, Madison, WI
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Hofman M, Sandhu S, Eu P, Price J, Akhurst T, Iravani A, Kong G, Ravi-Kumar A, Williams S, Thang SP, Murphy D, Scalzo M, Hicks R, Violet J. Lutetium-177 PSMA (LuPSMA) theranostics phase II trial: Efficacy, safety and QoL in patients with castrate-resistant prostate cancer treated with LuPSMA. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx370.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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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Peng Y, Shapiro S, Hewitt K, Kong G, Bresnick E, Zhang J, Puglielli L. SYSTEMIC OVEREXPRESSION OF AT-1/SLC33A1 CAUSES A PROGERIA-LIKE PHENOTYPE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y. Peng
- University of Wisconsin- Madison, Madison, Wisconsin
| | - S. Shapiro
- University of Wisconsin- Madison, Madison, Wisconsin
| | - K. Hewitt
- University of Wisconsin- Madison, Madison, Wisconsin
| | - G. Kong
- University of Wisconsin- Madison, Madison, Wisconsin
| | - E. Bresnick
- University of Wisconsin- Madison, Madison, Wisconsin
| | - J. Zhang
- University of Wisconsin- Madison, Madison, Wisconsin
| | - L. Puglielli
- University of Wisconsin- Madison, Madison, Wisconsin
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31
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Lee JY, Park JH, Choi HJ, Won HY, Joo HS, Shin DH, Park MK, Han B, Kim KP, Lee TJ, Croce CM, Kong G. LSD1 demethylates HIF1α to inhibit hydroxylation and ubiquitin-mediated degradation in tumor angiogenesis. Oncogene 2017; 36:5512-5521. [PMID: 28534506 DOI: 10.1038/onc.2017.158] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 04/02/2017] [Accepted: 04/18/2017] [Indexed: 12/15/2022]
Abstract
Lysine-specific demethylase 1 (LSD1), which has been considered as a potential therapeutic target in human cancer, has been known to regulate many biological functions through its non-histone substrates. Although LSD1-induced hypoxia-inducible factor alpha (HIF1α) demethylation has recently been proposed, the effect of LSD1 on the relationship between HIF1α post-translational modifications (PTMs) and HIF1α-induced tumor angiogenesis remains to be elucidated. Here, we identify a new methylation site of the HIF1α protein antagonized by LSD1 and the interplay between HIF1α protein methylation and other PTMs in regulating tumor angiogenesis. LSD1 demethylates HIF1α at lysine (K) 391, which protects HIF1α against ubiquitin-mediated protein degradation. LSD1 also directly suppresses PHD2-induced HIF1α hydroxylation, which has a mutually dependent interplay with Set9-mediated HIF1α methylation. Moreover, the HIF1α acetylation that occurs in a HIF1α methylation-dependent manner is inhibited by the LSD1/NuRD complex. HIF1α stabilized by LSD1 cooperates with CBP and MTA1 to enhance vascular endothelial growth factor (VEGF)-induced tumor angiogenesis. Thus, LSD1 is a key regulator of HIF1α/VEGF-mediated tumor angiogenesis by antagonizing the crosstalk between PTMs involving HIF1α protein degradation.
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Affiliation(s)
- J-Y Lee
- Institute for Bioengineering and Biopharmaceutical Research (IBBR), Hanyang University, Seoul, Republic of Korea
| | - J-H Park
- Institute for Bioengineering and Biopharmaceutical Research (IBBR), Hanyang University, Seoul, Republic of Korea
| | - H-J Choi
- Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - H-Y Won
- Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - H-S Joo
- Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - D-H Shin
- Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - M K Park
- National Cancer Center, Goyang, Republic of Korea
| | - B Han
- Department of Applied Chemistry, College of Applied Science, Kyung Hee University, Yongin, Korea
| | - K P Kim
- Department of Applied Chemistry, College of Applied Science, Kyung Hee University, Yongin, Korea
| | - T J Lee
- Department of Molecular Virology, Immunology and Medical Genetics, Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, OH, USA
| | - C M Croce
- Department of Molecular Virology, Immunology and Medical Genetics, Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, OH, USA
| | - G Kong
- Institute for Bioengineering and Biopharmaceutical Research (IBBR), Hanyang University, Seoul, Republic of Korea.,Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
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Liu K, He Q, Liao G, Kong G, Wang C. Influence of pelvic postural angle change on acetabulum implantation in total hip arthroplasty. Acta Orthop Belg 2016; 82:549-556. [PMID: 29119896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The current study investigated the relationship between the implantation angle of the acetabular component and the change in the pelvic postural angle during hip arthroplasty surgery. One pelvis with a left lower limb prosthesis was used. Total hip arthroplasty on the left pelvis was simulated with the help of a computer-assisted navigation system. The pelvis revolved around the horizontal, longitudinal and sagittal axes at different angles, and the anteversion and abduction of the acetabular component were measured. The changing angle of the pelvis rotating around the horizontal and longitudinal axes greatly influenced acetabular component anteversion. The changing angle of the pelvis rotating around the sagittal axis had a relatively great influence on the acetabular component abduction angle. The change in the postural angle of the pelvis had a great influence on the installation angle of the acetabular component. It is important to standardize posture prior to the operation.
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Park J, Li Y, Kong G, Mun K, Lee H, Kim D, Tran Q, Wang M, Peng B, Hong Y, Hur GM, Park J. Abstract 219: PHF20 induced necrotic like cell death mediated by ROS via enhanced mitochondrial biogenesis. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-219] [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
The importance of PHD finger protein 20 (PHF20) in the cellular process is recently emerging as a regulator for the p53 and NF-kB signaling as well as the reprograming process of induced pluripotent stem cell. In this study, we have provided the clear evidence that PHF20 exhibit the novel function in tumorigenesis by regulating the mitochondria biogenesis. Overexpression of PHF20 increases mitochondria biogenesis via up-regulation of peroxisome proliferator-activated receptor-γ coactivator 1-α (PGC1-α) in HCT116 cells. PHF20 overexpression enhances mitochondrial respiratory capacity and oxygen consumption, leading to the accumulation of reactive oxygen species (ROS). Accumulated ROS by PHF20 causes the necrotic like cell death in HCT116 cells. The measurement of mitochondrial ROS in the cells expressing PHF20 revealed that excessive production of mitochondrial ROS facilitates the formation of mitochondrial permeability transition pore, resulting in the loss of mitochondrial membrane potential. PHF20-mediated ROS accumulation damages DNA and leads to over-activation of PARP but not caspase. Antioxidants and PARP-1 inhibitor are able to rescue PHF20 induced cell death, whereas z-VAD, pan-caspase inhibitor, had no effects. Immunohistochemical analysis of various human cancer revealed that PHF20 expression is highly elevated in most of tumor compared to normal tissue. Taken together, PHF20 appears to be tumor-specific antigen and PHF20-mediated PGC1-α upregulation is responsible for the elevation of intracellular ROS generation, resulting the necrotic like cell death. Thus, this study provided the new concept for treating glioma patients and novel pharmacological target in various cancers including glioblastoma and hepatocellular carcinoma
Citation Format: Jisoo Park, Yuwen Li, Gyeyeong Kong, Kisun Mun, Hyunji Lee, Dohoon Kim, Quangdon Tran, Ming Wang, Bingjie Peng, Youngeun Hong, Gang Min Hur, Jongsun Park. PHF20 induced necrotic like cell death mediated by ROS via enhanced mitochondrial biogenesis. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 219.
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Affiliation(s)
- Jisoo Park
- 1Chungnam National Univ. College of Med., Daejeon, Republic of Korea
| | - Yuwen Li
- 2Fourth Military Medical University, Shaanxi, China
| | - Gyeyeong Kong
- 1Chungnam National Univ. College of Med., Daejeon, Republic of Korea
| | - Kisun Mun
- 1Chungnam National Univ. College of Med., Daejeon, Republic of Korea
| | - Hyunji Lee
- 1Chungnam National Univ. College of Med., Daejeon, Republic of Korea
| | - Dohoon Kim
- 1Chungnam National Univ. College of Med., Daejeon, Republic of Korea
| | - Quangdon Tran
- 1Chungnam National Univ. College of Med., Daejeon, Republic of Korea
| | - Ming Wang
- 1Chungnam National Univ. College of Med., Daejeon, Republic of Korea
| | - Bingjie Peng
- 1Chungnam National Univ. College of Med., Daejeon, Republic of Korea
| | - Youngeun Hong
- 1Chungnam National Univ. College of Med., Daejeon, Republic of Korea
| | - Gang Min Hur
- 1Chungnam National Univ. College of Med., Daejeon, Republic of Korea
| | - Jongsun Park
- 1Chungnam National Univ. College of Med., Daejeon, Republic of Korea
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Kong G, Chang YI, You X, Ranheim EA, Zhou Y, Burd CE, Zhang J. The ability of endogenous Nras oncogenes to initiate leukemia is codon-dependent. Leukemia 2016; 30:1935-8. [PMID: 27109513 DOI: 10.1038/leu.2016.89] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- G Kong
- McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, WI, USA
| | - Y-I Chang
- McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, WI, USA.,Institute of Physiology, National Yang-Ming University, Taipei City, Taiwan
| | - X You
- McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, WI, USA
| | - E A Ranheim
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, University of Wisconsin Carbone Cancer Center, Madison, WI, USA
| | - Y Zhou
- McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, WI, USA
| | - C E Burd
- Department of Molecular Genetics, The Ohio State University, Columbus, OH, USA.,Department of Molecular and Cellular Biochemistry, The Ohio State University, Columbus, OH, USA
| | - J Zhang
- McArdle Laboratory for Cancer Research, University of Wisconsin-Madison, Madison, WI, USA
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Wei L, Chen W, Zou Y, Huang H, Pan B, Jin S, Huang R, Nie S, Kong G. AMP-activated protein kinase regulates autophagic protection against cisplatin-induced tissue injury in the kidney. Genet Mol Res 2015; 14:12006-15. [PMID: 26505347 DOI: 10.4238/2015.october.5.13] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Although the nephrotoxicity of cisplatin has been well documented as a major side effect of chemotherapy, the exact mechanism by which prosurvival and apoptotic pathways interplay to determine renal pathology remains elusive. Recent studies suggested that autophagy might serve as an adaptive mechanism to promote cell survival during acute kidney injury (AKI). We have used AKI as a disease model to investigate the mechanism regulating the cytoprotective role of autophagy in cisplatin-induced tissue damage. Pharmacological inhibitors such as chloroquine were used to manipulate autophagy during AKI, and DNA damage was evaluated by using the cellular marker γH2AX. Cisplatin induced extensive DNA damage during AKI. Autophagy activation served as a survival strategy to suppress cisplatin-induced DNA damage in the pathology of AKI both in vitro and in vivo. Interestingly, in the kidney, cisplatin treatment can activate AMP-activated protein kinase (AMPK), a signaling molecule that is also critical for p53-mediated inactivation of mammalian target of rapamycin (mTOR) pathways. As a result, inhibition or knockdown of AMPK can lead to repressed autophagy in cisplatin-induced AKI, resulting in more DNA damage. Activation of AMPK regulates autophagy during cisplatin-induced AKI. Given the fact that p53 can regulate autophagy by inactivating mTOR via AMPK, our results suggest that the p53 pathway may also play a critical role in the pathogenesis of cisplatin-induced renal damage. This study may further our understanding of the physiological roles of autophagy in the pathogenesis of renal injuries, and thus may have pathological implications in the clinical setting.
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Affiliation(s)
- L Wei
- Department of Anesthesiology, Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - W Chen
- Department of Anesthesiology, Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - Y Zou
- Department of Anesthesiology, Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - H Huang
- Department of Anesthesiology, Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - B Pan
- Department of Anesthesiology, Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - S Jin
- Department of Anesthesiology, Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - R Huang
- Institute of Clinical Medical Research, Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - S Nie
- Institute of Clinical Medical Research, Hunan Provincial People's Hospital, Changsha, Hunan, China
| | - G Kong
- Department of Anesthesiology, Hunan Provincial People's Hospital, Changsha, Hunan, China
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Hodi F, Gibney G, Sullivan R, Sosman J, Slingluff C, Lawrence D, Logan T, Schuchter L, Nair S, Fecher L, Buchbinder E, Ruisi M, Kong G, Horak C, Weber J. 23LBA An open-label, randomized, phase 2 study of nivolumab (NIVO) given sequentially with ipilimumab (IPI) in patients with advanced melanoma (CheckMate 064). Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31943-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Park J, Kim JM, Park JK, Huang S, Kwak SY, Ryu KA, Kong G, Park J, Koo BS. Association of p21-activated kinase-1 activity with aggressive tumor behavior and poor prognosis of head and neck cancer. Head Neck 2014; 37:953-63. [PMID: 24634274 DOI: 10.1002/hed.23695] [Citation(s) in RCA: 28] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 01/14/2014] [Accepted: 03/11/2014] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND This study investigated the role of p21-activated kinase (PAK)-1 in progression of head and neck squamous cell carcinoma (HNSCC). METHODS We examined PAK isoforms and explored whether PAK activation enhanced in vitro invasion of the HNSCC cell line. We analyzed the relationship between PAK1 expression and various clinicopathological features and investigated the effect of PAK1 overexpression on survival in 119 patients with HNSCC. RESULTS PAK1 and PAK2 are predominantly expressed in HNSCC cells and patient tissues. Particularly, PAK1 makes the dominant contribution to increase in cell migration and invasion. There was a statistically significant correlation between PAK1 overexpression and aggressive cancer behavior. Moreover, PAK1 seemed to be a prognostic factor for overall and disease-specific survival in patients. Interestingly, enhancement of PAK1 expression was found in the invasive front of cancer. CONCLUSION PAK1 is associated with the aggressive tumor behavior and poor prognosis of head and neck cancer.
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Affiliation(s)
- Jisoo Park
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, Daejeon, South Korea
| | - Jin-Man Kim
- Department of Pathology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, Daejeon, South Korea
| | - Jeong Kyu Park
- Department of Microbiology, Cancer Research Institute, Research Institute for Medical Sciences, Chungnam National University College of Medicine, Daejeon, South Korea
| | - Songmei Huang
- Department of Pathology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, Daejeon, South Korea
| | - Seo Young Kwak
- Department of Otolaryngology-Head and Neck Surgery, Cancer Research Institute, Research Institute for Medical Sciences, Chungnam National University College of Medicine, Daejeon, South Korea
| | - Kyeung A Ryu
- Department of Otolaryngology-Head and Neck Surgery, Cancer Research Institute, Research Institute for Medical Sciences, Chungnam National University College of Medicine, Daejeon, South Korea
| | - Gyeyeong Kong
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, Daejeon, South Korea
| | - Jongsun Park
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, Daejeon, South Korea
| | - Bon Seok Koo
- Department of Otolaryngology-Head and Neck Surgery, Cancer Research Institute, Research Institute for Medical Sciences, Chungnam National University College of Medicine, Daejeon, South Korea
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Kong G, Thompson M, Collins M, Herschtal A, Hofman MS, Johnston V, Eu P, Michael M, Hicks RJ. Assessment of predictors of response and long-term survival of patients with neuroendocrine tumour treated with peptide receptor chemoradionuclide therapy (PRCRT). Eur J Nucl Med Mol Imaging 2014; 41:1831-44. [PMID: 24844348 PMCID: PMC4159597 DOI: 10.1007/s00259-014-2788-5] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [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: 12/24/2013] [Accepted: 04/15/2014] [Indexed: 01/08/2023]
Abstract
PURPOSE To review the response and outcomes of (177)Lu-DOTA-octreotate chemoradionuclide therapy (LuTate PRCRT) in patients with neuroendocrine tumour (NET) expressing high levels of somatostatin receptors with uncontrolled symptoms or disease progression. METHODS A total of 68 patients (39 men; 17 - 76 years of age) who had completed an induction course of at least three cycles of LuTate PRCRT between January 2006 and June 2010 were reviewed. Ten patients were treated for uncontrolled symptoms and 58 had disease progression despite conventional treatment. The majority had four induction LuTate cycles (median treatment duration 5 months and cumulative activity 31 GBq), and 63 patients had concomitant 5-FU radiosensitizing infusional chemotherapy. Factors predicting overall survival were assessed using the log-rank test and Cox proportional hazards regression. RESULTS Of those treated for uncontrolled symptoms, 70 % received benefit maintained for at least 6 months after treatment. Among patients with progressive disease 68 % showed stabilization or regression on CT, 67 % on molecular imaging and 56 % biochemically up to 12 months after treatment; 32 patients died. Overall survival rates at 2 and 5 year were 72.1 % and 52.1 %, respectively. Median overall survival was not estimable at a median follow-up of 60 months (range 5 - 86 months). Nonpancreatic primary sites, dominant liver metastases, lesion size <5 cm and the use of 5-FU chemotherapy were statistically significantly associated with objective response. A disseminated pattern and a high disease burden (whole-body retention index) were associated with an increased risk of death. Objective biochemical, molecular imaging and CT responses were all associated with longer overall survival. CONCLUSION A high proportion of patients with progressive NET or uncontrolled symptoms received therapeutic benefit from LuTate with concomitant 5-FU chemotherapy. The achievement of objective biochemical, molecular or CT responses within 12 months was associated with improved overall survival. Patients with a primary pancreatic site and larger lesions (>5 cm) appeared to have lower objective response rates and may need a more aggressive treatment approach.
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Affiliation(s)
- G Kong
- Centre for Cancer Imaging, Peter MacCallum Cancer Centre, St Andrew's Place, East Melbourne, VIC, 3002, Australia
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Pang L, Gong X, Liu N, Xie G, Gao W, Kong G, Li X, Zhang J, Jin Y, Duan Z. A polymorphism in melanoma differentiation-associated gene 5 may be a risk factor for enterovirus 71 infection. Clin Microbiol Infect 2014; 20:O711-7. [PMID: 24621100 DOI: 10.1111/1469-0691.12618] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 02/21/2014] [Accepted: 03/09/2014] [Indexed: 01/24/2023]
Abstract
Enterovirus 71 (EV71) infection has a wide variety of clinical manifestations, from no symptoms to fatal disease. Host immune response may be a determinant of disease severity. We investigated the association of polymorphisms in three pattern recognition receptor (PRR) genes-toll-like receptor 3 (TLR3) (rs3775291), retinoic acid-inducible gene I (RIG-I) (rs10813831) and melanoma differentiation-associated gene 5 (MDA5) (rs1990760)-with the severity of EV71 infection. Polymorphisms of candidate genes in 87 EV71-infected patients and 57 asymptomatic controls were detected. Binary logistic regression analysis revealed statistically significant differences in polymorphism of MDA5 (rs1990760) between patients with severe EV71 infection and asymptomatic controls in an additive model (OR 0.424, 95% CI 0.213-0.845, p 0.015) and a dominant model (OR 0.256, 95% CI 0.103-0.635, p 0.003). Polymorphism of MDA5 (rs1990760) (OR 0.399, 95% CI 0.199-0.798, p 0.009) was found to be associated with the severity of EV71 infection with the analysis of ordinal logistic regression. These results indicated the association between MDA5 (rs1990760) polymorphism and an increased risk of a severe EV71 infection in Chinese children, which offers potential for investigating the innate immune mechanism of EV71 infection and identifying at-risk infants, for whom a preventive strategy may reduce the severity of EV71 infection.
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Affiliation(s)
- L Pang
- National Institute for Viral Disease Control and Prevention, China CDC, Key Laboratory for Medical Virology, National Health and Family Planning Commission, Beijing, China; Ji'nan Municipal Centre for Disease Control and Prevention, Ji'nan, China
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Park J, Li Y, Kim SH, Yang KJ, Kong G, Shrestha R, Tran Q, Park KA, Jeon J, Hur GM, Lee CH, Kim DH, Park J. New players in high fat diet-induced obesity: LETM1 and CTMP. Metabolism 2014; 63:318-27. [PMID: 24333006 DOI: 10.1016/j.metabol.2013.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 10/29/2013] [Accepted: 10/29/2013] [Indexed: 01/22/2023]
Abstract
OBJECTIVE Obesity contributes to insulin resistance and is a risk factor for diabetes. C-terminal modulator protein (CTMP) and leucine zipper/EF-hand-containing transmembrane protein 1 (LETM1) have been reported to influence the phosphoinositide 3-kinase (PI3K)/protein kinase B (PKB) signaling pathway via the modulation of PKB activity, a key player for insulin signaling. However, it remains unclear whether CTMP and LETM1 are associated with PI3K/PKB signaling in mouse models of obesity. MATERIALS/METHODS To address this question, we used two different mouse models of obesity, including high-fat diet (HFD)-induced diabetic mice and genetically modified obese mice (ob/ob mice). The levels of insulin-signaling molecules in these mice were determined by immunohistochemical and Western blot analyses. The involvement of CTMP and LETM1 in PI3K/PKB signaling was investigated in HEK293 cells by transient transfection and adenovirus-mediated infection. RESULTS We found that the levels of insulin receptor, phosphorylated PKB, and LETM1 were lower and the level of CTMP was higher in the adipose tissue of obese mice on an HFD compared to lean mice on a chow diet. Similar results were obtained in ob/ob mice. In HEK293 cells, the activation of PKB increased the LETM1 level, and inhibition of PKB increased the CTMP level. The overexpression of CTMP suppressed the insulin-induced increase in PKB phosphorylation, which was abrogated by co-overexpression with LETM1. CONCLUSION These results suggest that CTMP and LETM1 may participate in impaired insulin signaling in the adipose tissue of obese mice, raising the possibility that these parameters may serve as new candidate biomarkers or targets in the development of new therapeutic approaches for diabetes.
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Affiliation(s)
- Jisoo Park
- Metabolic Disease Institute, University of Cincinnati, Cincinnati, OH 45437, USA; Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-131, South Korea
| | - Yuwen Li
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Shaanxi, 710032, China
| | - Seon-Hwan Kim
- Department of Neurosurgery, College of Medicine, Chungnam National University, Daejeon 301-747, South Korea
| | - Keum-Jin Yang
- Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333, South Korea
| | - Gyeyeong Kong
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-131, South Korea
| | - Robin Shrestha
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-131, South Korea
| | - Quangdon Tran
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-131, South Korea
| | - Kyeong Ah Park
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-131, South Korea
| | - Juhee Jeon
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-131, South Korea
| | - Gang Min Hur
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-131, South Korea
| | - Chul-Ho Lee
- Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333, South Korea
| | - Dong-Hoon Kim
- Department of Pharmacology, Korea University College of Medicine, Seoul 136-701, South Korea.
| | - Jongsun Park
- Metabolic Disease Institute, University of Cincinnati, Cincinnati, OH 45437, USA; Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-131, South Korea.
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Li L, Liu M, Cheng LW, Gao XY, Fu JJ, Kong G, Feng X, Pan XC. HBcAg-specific IL-21-producing CD4+ T cells are associated with relative viral control in patients with chronic hepatitis B. Scand J Immunol 2014; 78:439-46. [PMID: 23957859 DOI: 10.1111/sji.12099] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 08/05/2013] [Indexed: 12/29/2022]
Abstract
Function exhaustion of specific cytotoxic CD8+ T cell in chronic virus infection partly results from the low levels of CD4 help, but the mechanisms by which CD4 help T cell required to control hepatitis B virus infection are not well understood. In this study, we investigated the role of interleukin-21-producing CD4+ T cell response in viral control of hepatitis B virus infection. HBcAg-specific interleukin-21-producing CD4+ T cells in blood were detected in patients with hepatitis B virus infection. Patients with acute hepatitis B had greater HBcAg-specific interleukin-21-producing CD4+ T cells in blood compared with chronic hepatitis B patients, and there was no statistical significance between immune active chronic hepatitis B patients and inactive healthy carrier patients for these cells, whereas frequencies of these cells negatively correlated with HBV DNA levels but positively correlated with HBc18-27-specific IFN-γ-producing CD8+ T cells. Moreover, interleukin-21 sustained HBc18-27-specific CD8+ T cells in vitro, and interleukin-21 production by HBcAg-specific IL-21-producing CD4+ T cells of acute hepatitis B patients enhanced IFN-γ and perforin expression by CD8+ T cells from chronic hepatitis B patients. Our results demonstrate that HBcAg-specific interleukin-21-producing CD4+ T cell responses might contribute to viral control by sustaining CD8+ T cell antiviral function.
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Affiliation(s)
- L Li
- Department of Infectious Disease, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, China
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Shin S, Park J, Li Y, Min KN, Kong G, Hur GM, Kim JM, Shong M, Jung MS, Park JK, Jeong KH, Park MG, Kwak TH, Brazil DP, Park J. β-Lapachone alleviates alcoholic fatty liver disease in rats. Cell Signal 2013; 26:295-305. [PMID: 24269941 DOI: 10.1016/j.cellsig.2013.11.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 11/04/2013] [Accepted: 11/18/2013] [Indexed: 11/19/2022]
Abstract
UNLABELLED Alcohol-induced liver injury is the most common liver disease in which fatty acid metabolism is altered. It is thought that altered NAD(+)/NADH redox potential by alcohol in the liver causes fatty liver by inhibiting fatty acid oxidation and the activity of tricarboxylic acid cycle reactions. β-Lapachone (βL), a naturally occurring quinone, has been shown to stimulate fatty acid oxidation in an obese mouse model by activating adenosine monophosphate-activated protein kinase (AMPK). In this report, we clearly show that βL reduced alcohol-induced hepatic steatosis and induced fatty acid oxidizing capacity in ethanol-fed rats. βL treatment markedly decreased hepatic lipids while serum levels of lipids and lipoproteins were increased in rats fed ethanol-containing liquid diets with βL administration. Furthermore, inhibition of lipolysis, enhancement of lipid mobilization to mitochondria and upregulation of mitochondrial β-oxidation activity in the soleus muscle were observed in ethanol/βL-treated animals compared to the ethanol-fed rats. In addition, the activity of alcohol dehydrogenase, but not aldehyde dehydrogenase, was significantly increased in rats fed βL diets. βL-mediated modulation of NAD(+)/NADH ratio led to the activation of AMPK signaling in these animals. CONCLUSION Our results suggest that improvement of fatty liver by βL administration is mediated by the upregulation of apoB100 synthesis and lipid mobilization from the liver as well as the direct involvement of βL on NAD(+)/NADH ratio changes, resulting in the activation of AMPK signaling and PPARα-mediated β-oxidation. Therefore, βL-mediated alteration of NAD(+)/NADH redox potential may be of potential therapeutic benefit in the clinical setting.
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Affiliation(s)
- Sanghee Shin
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-474, South Korea
| | - Jisoo Park
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-474, South Korea
| | - Yuwen Li
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-474, South Korea; Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Shaanxi, China
| | - Ki Nam Min
- Mazence Inc. R&D Center, Suwon 443-813, South Korea
| | - Gyeyeong Kong
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-474, South Korea
| | - Gang Min Hur
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-474, South Korea
| | - Jin Man Kim
- Department of Pathology, College of Medicine, Chungnam National University, Daejeon 301-131, South Korea
| | - Minho Shong
- Internal Medicine, College of Medicine, Chungnam National University, Daejeon 301-131, South Korea
| | - Min-Suk Jung
- Mazence Inc. R&D Center, Suwon 443-813, South Korea
| | | | | | | | | | - Derek P Brazil
- Centre for Experimental Medicine School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, BT12 6BA Northern Ireland, UK
| | - Jongsun Park
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, College of Medicine, Chungnam National University, Daejeon 301-474, South Korea.
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Park J, Kwon K, Kim SH, Yi MH, Zhang E, Kong G, Kim DW, Park J. Astrocytic phosphorylation of PDK1 on Tyr9 following an excitotoxic lesion in the mouse hippocampus. Brain Res 2013; 1533:37-43. [PMID: 23973607 DOI: 10.1016/j.brainres.2013.08.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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: 05/13/2013] [Revised: 07/29/2013] [Accepted: 08/06/2013] [Indexed: 11/29/2022]
Abstract
3-phosphoinositide-dependent kinase-1 (PDK1) is suggested to play important roles in the regulation of synaptic plasticity and neuronal cell survival in the mature CNS. Although few studies have investigated the roles of PDK1, little is known about PDK1 changes in glial cells under neuropathological conditions. In current report, phosphorylation of PDK1 was monitored specially on tyrosine residues, following the induction of an excitotoxic lesion in rat brain by using kainic acid administration. In injured hippocampal CA3 region, Tyr9 phosphorylation of PDK1 was increased from 4h until 3 day post-injection. Double immunohistochemistry further evaluated that these phosphorylated forms of PDK1 were localized in astrocytes not other cells. Overexpression of unphosphorylatable mutant, PDK1-Y9F leads to inhibit Protein kinase B (PKB/Akt) activation and cAMP responsive element binding protein (CREB) phosphorylation. In conclusion, our results suggested for the first time that tyrosine phosphorylation of PDK1 is required for PKB and CREB activation in KA-mediated excitotoxic lesion in mouse brain.
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Affiliation(s)
- Jisoo Park
- Department of Pharmacology, Metabolic Diseases and Cell Signaling Laboratory, Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, 301-747, South Korea
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Randall L, Burger R, Nguyen H, Kong G, Bookman M, Fleming G, Monk B, Mannel R, Birrer M. Time from completion of chemotherapy to disease progression as a clinically relevant endpoint in women with epithelial ovarian, primary peritoneal, and fallopian tube cancers treated with and without bevacizumab. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.346] [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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Du J, Liu Y, Meline B, Kong G, Tan LX, Lo JC, Wang J, Ranheim E, Zhang L, Chang YI, Ryu MJ, Zhang JF, Zhang J. Loss of CD44 attenuates aberrant GM-CSF signaling in Kras G12D hematopoietic progenitor/precursor cells and prolongs the survival of diseased animals. Leukemia 2012; 27:754-7. [PMID: 22976127 DOI: 10.1038/leu.2012.251] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Zhang S, Shan C, Kong G, Du Y, Ye L, Zhang X. MicroRNA-520e suppresses growth of hepatoma cells by targeting the NF-κB-inducing kinase (NIK). Oncogene 2012; 31:3607-20. [PMID: 22105365 DOI: 10.1038/onc.2011.523] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Revised: 10/11/2011] [Accepted: 10/14/2011] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs) are small, non-coding RNAs that can act as oncogenes or tumor suppressor genes in human cancer. Emerging evidence indicates that deregulation of miRNAs contributes to the hepatocarcinogenesis. In the present study, we demonstrated that the levels of miR-520e were dramatically decreased in examined hepatoma cell lines and clinical hepatocellular carcinoma (HCC) tissues. Moreover, we found that DNA hypermethylation in the upstream region of miR-520e resulted in the downregulation of miR-520e. Next, we demonstrated that introduction of miR-520e dramatically suppressed the growth of hepatoma cells in vitro and in vivo, whereas silencing the expression of miR-520e by anti-miR-520e resulted in a promoted cell proliferation, suggesting that miR-520e may be a novel tumor suppressor. Further studies revealed that NF-κB-inducing kinase (NIK) was one of the direct target genes of miR-520e, as miR-520e directly bound to the 3'untranslated region of NIK, which reduced the expression of NIK at the levels of mRNA and protein. Moreover, silencing of NIK was able to inhibit the growth of hepatoma cells, similar to the effect of miR-520e overexpression on growth of hepatoma cells. Meanwhile, the knockdown of NIK expression reversed the enhanced proliferation mediated by anti-miR-520e. In addition, miR-520e significantly decreased the phosphorylation of ERK1/2 (p-ERK1/2) and depressed the transcriptional activity and nuclear translocation of nuclear factor κB (NF-κB) (p65). These results suggest that miR-520e suppresses the growth of hepatoma cells by targeting NIK involving the NIK/p-ERK1/2/NF-κB signaling pathway. Finally, we showed that the intratumoral injection with miR-520e was able to directly repress the growth of hepatoma cells in the nude mice. Thus, our finding provides new insight into the mechanism of hepatocarcinogenesis, indicating a therapeutic potential of miR-520e in the treatment of HCC.
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Affiliation(s)
- S Zhang
- Department of Cancer Research, Key Laboratory of Molecular Microbiology and Technology of Ministry of Education, Institute For Molecular Biology, College of Life Sciences, Nankai University, Tianjin, PR China
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Lawrence M, Menting J, Kong G, Margetts M, Ward C. First view of insulin bound to its primary binding site on the insulin receptor. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311096401] [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: 11/11/2022] Open
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Lee J, Qian T, Park J, Kim H, Kong G. 538 Id1 enhances RING1b E3 ubiquitin ligase activity through the Mel-18/Bmi-1 polycomb group complex. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)72245-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Fujii R, Fujita S, Waseda T, Oka Y, Takagi H, Tomizawa H, Sasagawa T, Makinoda S, Cavagna M, Braga DPAF, Figueira RCS, Aoki T, Maldonado LGL, Iaconelli A, Borges E, Prabhakar S, Dittrich R, Beckmann MW, Hoffmann I, Mueller A, Kjotrod S, Carlsen SM, Rasmussen PE, Holst-Larsen T, Mellembakken J, Thurin-Kjellberg A, Haapaniemi Kouru K, Morin Papunen L, Humaidan P, Sunde A, von During V, Pappalardo S, Valeri C, Crescenzi F, Manna C, Sallam HN, Polec A, Raki M, Tanbo T, Abyholm T, Fedorcsak P, Tabanelli C, Ferraretti AP, Feliciani E, Magli MC, Fasolino C, Gianaroli L, Wang T, Feng C, Song Y, Dong MY, Sheng JZ, Huang HF, Sayyah Melli M, Kazemi-shishvan M, Snajderova M, Zemkova D, Pechova M, Teslik L, Lanska V, Ketel I, Serne E, Stehouwer C, Korsen T, Hompes P, Smulders Y, Voorstemans L, Homburg R, Lambalk C, Bellver J, Martinez-Conejero JA, Pellicer A, Labarta E, Alama P, Melo MAB, Horcajadas JA, Agirregoitia N, Peralta L, Mendoza R, Exposito A, Matorras R, Agirregoitia E, Ajina M, Chaouache N, Gaddas M, Souissi A, Tabka Z, Saad A, Zaouali-Ajina M, Zbidi A, Eguchi N, Jinno M, Watanabe A, Hirohama J, Hatakeyama N, Choi YM, Kim JJ, Kim DH, Yoon SH, Ku SY, Kim SH, Kim JG, Lee KS, Moon SY, Hirohama J, Jinno M, Watanabe A, Eguchi N, Hatakeyama N, Jinno M, Watanabe A, Hirohama J, Eguchi N, Hatakeyama N, Xiong Y, Liang X, Li Y, Yang X, Wei L, Makinoda S, Tomizawa H, Fujita S, Takagi H, Oka Y, Waseda T, Sasagawa T, Fujii R, Utsunomiya T, Chu S, Li P, Akarsu S, Dirican EK, Akin KO, Kormaz C, Goktolga U, Ceyhan ST, Kara C, Nadamoto K, Tarui S, Ida M, Sugihara K, Haruki A, Hukuda A, Morimoto Y, Albu A, Albu D, Sandu L, Kong G, Cheung L, Lok I, Pinto A, Teixeira L, Figueiredo H, Pires I, Silva Carvalho JL, Pereira ML, Faut M, de Zuniga I, Colaci D, Barrios E, Oubina A, Terrado Gil G, Motta A, Colaci D, de Zuniga I, Horton M, Faut M, Sobral F, Gomez Pena M, Motta A, Gleicher N, Barad DH, Li YP, Zhao HC, Spaczynski RZ, Guzik P, Banaszewska B, Krauze T, Wykretowicz A, Wysocki H, Pawelczyk L, Sarikaya E, Gulerman C, Cicek N, Mollamahmutoglu L, Venetis CA, Kolibianakis EM, Toulis K, Goulis D, Loutradi K, Chatzimeletiou K, Papadimas I, Bontis I, Tarlatzis BC, Schultze-Mosgau A, Griesinger G, Schoepper B, Cordes T, Diedrich K, Al-Hasani S, Gomez R, Jovanovic V, Sauer CM, Shawber CJ, Sauer MV, Kitajewski J, Zimmermann RC, Bungum L, Jacobsson AK, Rosen F, Becker C, Andersen CY, Guner N, Giwercman A, Kiapekou E, Zapanti E, Boukelatou D, Mavreli T, Bletsa R, Stefanidis K, Drakakis P, Mastorakos G, Loutradis D, Malhotra N, Sharma V, Kumar S, Roy KK, Sharma JB, Ferraretti A, Gianaroli L, Magli MC, Crippa A, Stanghellini I, Robles F, Serdynska-Szuster M, Spaczynski RZ, Banaszewska B, Pawelczyk L, Kristensen SL, Ernst E, Toft G, Olsen SF, Bonde JP, Vested A, Ramlau-Hansen CH, Wang FF, Qu F, Ding GL, Huang HF, Gallot V, Genro V, Roux I, Scheffer JB, Frydman R, Fanchin R, Kanta Goswami S, Banerjee S, Chakravarty BN, Kabir SN, Seeber BE, Morandell E, Kurzthaler D, Wildt L, Dieplinger H, Tutuncu L, Bodur S, Dundar O, Ron - El R, Seger R, Komarovsky D, Kasterstein E, Komsky A, Maslansky B, Strassburger D, Ben-Ami I, Zhao XM, Ni RM, Lin L, Dong M, Tu CH, He ZH, Yang DZ, Karamalegos C, Polidoropoulos N, Papanikopoulos C, Stefanis P, Argyrou M, Doriza S, Sisi V, Moschopoulou M, Karagianni T, Mentorou C, Economou K, Davies S, Mastrominas M, Gougeon A, De Los Santos MJ, Garcia-Laez V, Martinez-Conejero JA, Horcajadas JA, Esteban F, Labarta E, Crespo J, Pellicer A, Li HWR, Anderson RA, Yeung WSB, Ho PC, Ng EHY, Yang HI, Lee KE, Seo SK, Kim HY, Cho SH, Choi YS, Lee BS, Park KH, Cho DJ, Hart R, Doherty D, Mori T, Hickey M, Sloboda D, Norman R, Huang RC, Beilin L, Freiesleben N, Lossl K, Johannsen TH, Loft A, Bangsboll S, Hougaard D, Friis-Hansen L, Christiansen M, Nyboe Andersen A, Thum MY, Abdalla H, Martinez-Salazar J, De la Fuente G, Kohls G, Pellicer A, Garcia Velasco JA, Yasmin E, Kukreja S, Barth J, Balen AH, Esra T, Var T, Citil A, Dogan M, Cicek N, Messini CI, Dafopoulos K, Chalvatzas N, Georgoulias P, Anifandis G, Messinis IE, Celik O, Hascalik S, Celik N, Sahin I, Aydin S, Hanna CW, Bretherick KL, Liu CC, Stephenson MD, Robinson WP, Louwers YV, Goodarzi MO, Taylor KD, Jones MR, Cui J, Kwon S, Chen YDI, Guo X, Stolk L, Uitterlinden AG, Laven JSE, Azziz R, Navaratnarajah R, Grun B, Sinclair J, Dafou D, Gayther S, Timms JF, Hardiman PJ, Ye Y, Wu R, Ou J, Kim SD, Jee BC, Lee JY, Suh CS, Kim SH, Jung JH, Moon SY, Opmeer BC, Broeze KA, Coppus SF, Collins JA, Den Hartog JE, Land JA, Van der Linden PJ, Marianowski P, Ng E, Van der Steeg JW, Steures P, Strandell A, Mol BW, Tarlatzi TB, Kyrou D, Mertzanidou A, Fatemi HM, Tarlatzis BC, Devroey P, Batenburg TE, Konig TE, Overbeek A, Hompes P, Schats R, Lambalk CB, Carone D, Vizziello G, Vitti A, Chiappetta R, Topcu HO, Yuksel B, Islimye M, Karakaya J, ozat M, Batioglu S, Kuchenbecker WK, Groen H, Bolster JH, van Asselt S, Wolffenbuettel BH, Land JA, Hoek A, Wu Y, Pan H, Chen X, Wang T, Huang H, Zavos A, Dafopoulos K, Georgoulias P, Messini CI, Verikouki C, Messinis IE, Van Os L, Vink-Ranti CQJ, Rijnders PM, Tucker KE, Jansen CAM, Lucco F, Pozzobon C, Lara E, Galliano D, Pellicer A, Ballesteros A, Ghoshdastidar B, Maity SP, Ghoshdastidar B, Ghoshdastidar S, Luna M, Vela G, Sandler B, Barritt J, Flisser ED, Copperman AB, Nogueira D, Prat L, Degoy J, Bonald F, Montagut J, Ghoshdastidar S, Maity S, Ghoshdastidar B, Chen S, Chen X, Luo C, Zhen H, Shi X, Wu F, Ni Y, Merdassi G, Chaker A, Kacem K, Benmeftah M, Fourati S, Wahabi D, Zhioua F, Zhioua A, Saini P, Saini A, Sugiyama R, Nakagawa K, Nishi Y, Jyuen H, Kuribayashi Y, Sugiyama R, Inoue M, Jancar N, Vrtacnik Bokal E, Virant-Klun I, Lee JH, Kim SG, Cha EM, Park IH, Lee KH, Dahdouh EM, Desrosiers P, St-Michel P, Villeneuve M, Fontaine JY, Granger L, Ramon O, Matorras R, Burgos J, Abanto E, Gonzalez M, Mugica J, Corcostegui B, Exposito A, Tal J, Ziskind G, Ohel G, Paltieli Y, Paz G, Lewit N, Sendel H, Khouri S, Calderon I, van Gelder P, Al-Inany HG, Antaki R, Dean N, Lapensee L, Racicot M, Menard S, Kadoch I, Meylaerts LJ, Dreesen L, Vandersteen M, Neumann C, Zollner U, Kato K, Segawa T, Kawachiya S, Okuno T, Kobayashi T, Takehara Y, Kato O, Jayaprakasan K, Nardo L, Hopkisson J, Campbell B, Raine-Fenning N. Posters * Reproductive Endocrinology (i.e. PCOS, Menarche, Menopause etc.). Hum Reprod 2010. [DOI: 10.1093/humrep/de.25.s1.438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Archer V, Reck M, Sandler AB, Johnson DH, Kong G, Strickland DK, Bennouna J. Risk of symptomatic central nervous system (CNS) progression and secondary hemorrhage in patients with non-squamous non-small cell lung cancer (NSCLC) receiving bevacizumab (BV)-based first-line therapy. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.8114] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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