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Chen YL, Wang Y, Fang QY, Wang T, Chen C, Gao TY, Wu M, Zhang WP, Lu YB. PARP-1 inhibitor alleviates cerebral ischemia/reperfusion injury by reducing PARylation of HK-1 and LDH in mice. Eur J Pharmacol 2024; 967:176377. [PMID: 38346469 DOI: 10.1016/j.ejphar.2024.176377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 01/06/2024] [Accepted: 01/31/2024] [Indexed: 02/18/2024]
Abstract
Poly (ADP-ribose) polymerase-1 (PARP-1) activity significantly increases during cerebral ischemia/reperfusion. PARP-1 is an NAD+-consumption enzyme. PARP-1 hyperactivity causes intracellular NAD+ deficiency and bioenergetic collapse, contributing to neuronal death. Besides, the powerful trigger of PARP-1 causes the catalyzation of poly (ADP-ribosyl)ation (PARylation), a posttranslational modification of proteins. Here, we found that PARP-1 was activated in the ischemic brain tissue during middle-cerebral-artery occlusion and reperfusion (MCAO/R) for 24 h, and PAR accumulated in the neurons in mice. Using immunoprecipitation, Western blotting, liquid chromatography-mass spectrometry, and 3D-modeling analysis, we revealed that the activation of PARP-1 caused PARylation of hexokinase-1 and lactate dehydrogenase-B, which, therefore, caused the inhibition of these enzyme activities and the resulting cell energy metabolism collapse. PARP-1 inhibition significantly reversed the activity of hexokinase and lactate dehydrogenase, decreased infarct volume, and improved neuronal deficiency. PARP-1 inhibitor combined with pyruvate further alleviated MCAO/R-induced ischemic brain injury in mice. As such, we conclude that PARP-1 inhibitor alleviates neuronal death partly by inhibiting the PARylation of metabolic-related enzymes and reversing metabolism reprogramming during cerebral ischemia/reperfusion injury in mice. PARP-1 inhibitor combined with pyruvate might be a promising therapeutic approach against brain ischemia/reperfusion injury.
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Affiliation(s)
- Ya-Ling Chen
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Yi Wang
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Qiu-Yu Fang
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Department of Thoracic Surgery, The Second Affiliated Hospital of School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Tong Wang
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Cong Chen
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Tong-Yao Gao
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Ming Wu
- Department of Thoracic Surgery, The Second Affiliated Hospital of School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Wei-Ping Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
| | - Yun-Bi Lu
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
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Yao DC, Ye BK, Yao DJ, Guo CC. A novel lactate dehydrogenase-based risk score model to predict the prognosis of primary central nervous system germ cell tumor treated with chemoradiotherapy. Clin Neurol Neurosurg 2024; 236:108081. [PMID: 38091701 DOI: 10.1016/j.clineuro.2023.108081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 12/06/2023] [Indexed: 02/04/2024]
Abstract
BACKGROUND The prognostic role of lactate dehydrogenase (LDH) has been confirmed in many malignant tumors, but the role of serum LDH in primary central nervous system germ cell tumor (GCT) remains unknown. This study aimed to assess the prognostic value of LDH in GCT patients and develop a nomogram to predict prognosis in patients undergoing chemoradiotherapy. METHODS A total of 161 patients with GCT were included in this study. Using a restricted cubic spline (RCS) model, the optimal cutoff point for LDH was determined to be 217 U/L. The survival of GCT patients was evaluated using the Kaplan-Meier method and log-rank test to analyze the effects of LDH levels. Univariate Cox regression, multivariate Cox regression, and LASSO Cox regression were conducted to identify prognostic factors, which were incorporated into a nomogram for predicting overall survival (OS). The predictive accuracy of the nomogram was assessed using the C-index, calibration curve, area under the time-dependent receiver operating characteristic curve (time-dependent AUC), and risk group stratification. The net benefits of the nomogram at different threshold probabilities were quantified using decision curve analysis (DCA). RESULTS The high-LDH group had significantly shorter OS compared to the low-LDH group (P = 0.016). Based on the SYSUCC cohort, three variables were shown to be significant factors for OS and were incorporated in the nomogram: LDH, histopathology, and dissemination. It showed good discrimination ability, with C-index of 0.789 (95% CI, 0.671-0.907). Additionally, the clinical usefulness of the nomogram was confirmed by calibration curves and time-dependent AUC. DCA further highlighted the potential of the nomogram to guide clinical treatment strategies for patients. Moreover, there was a significant difference in OS among patients categorized into different risk groups (P < 0.001). CONCLUSION LDH levels may serve as a reliable predictor for assessing the therapeutic effect of chemoradiotherapy in GCT. The developed nomogram exhibits high accuracy in predicting survival outcomes, aiding in the classification of prognostic groups, and supporting informed clinical decision-making.
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Affiliation(s)
- Dun-Chen Yao
- Department of Radiation Oncology, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P. R. China
| | - Bao-Kui Ye
- Department of Intensive Care Unit, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P. R. China
| | - Dong-Jie Yao
- Department of Neurology, Zhenyuan County Hospital, Zhenyuan, China
| | - Cheng-Cheng Guo
- Department of Neurosurgery/Neuro-Oncology, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, P. R. China..
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Zhao Y, Geng X, Zhou X, Xu L, Li S, Li Z, Guo Y, Li C. A novel high-stability bioelectrochemical sensor based on sol-gel immobilization of lactate dehydrogenase and AuNPs-rGO signal enhancement for serum pyruvate detection. Anal Chim Acta 2023; 1265:341335. [PMID: 37230575 DOI: 10.1016/j.aca.2023.341335] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 01/06/2023] [Revised: 03/25/2023] [Accepted: 05/07/2023] [Indexed: 05/27/2023]
Abstract
Pyruvate participates in diverse metabolic pathways in the body and is normally present in human blood at 40-120 μM, with concentrations outside this range associated with various diseases. Therefore, accurate and stable blood pyruvate level tests are necessary for effective disease detection. However, traditional analytical techniques require complicated instrumentation and are time consuming and expensive, prompting researchers to develop improved methods based on biosensors and bioassays. Here, we designed a highly stable bioelectrochemical pyruvate sensor affixed to a glassy carbon electrode (GCE). To maximize biosensor stability, 0.1 U of lactate dehydrogenase was affixed to the GCE using a sol-gel process, resulting in generation of Gel/LDH/GCE. Next, 2.0 mg/mL AuNPs-rGO was added to enhance current signal strength, resulting in generation of the bioelectrochemical sensor Gel/AuNPs-rGO/LDH/GCE. AuNPs-rGO synthesized in advance was verified as correct using transmission electron microscopy and UV-Vis, Fourier-transform infrared and X-ray photoelectron spectroscopy. Pyruvate detection conducted via differential pulse voltammetry in phosphate buffer (pH 7.4, 100 mM) at 37 °C for 1-4500 μM pyruvate provided detection sensitivity as high as 254.54 μA/mM/cm2. The reproducibility, regenerability and storage stability were analyzed with the relative standard deviation of 5 bioeletrochemical sensors detection was 4.60% and biosensor accuracy after 9 cycles was 92%, with accuracy remaining at 86% after 7 days. In the presence of D-glucose, citric acid, dopamine, uric acid and ascorbic acid, the Gel/AuNPs-rGO/LDH/GCE sensor exhibited excellent stability, high anti-interference ability and better performance than conventional spectroscopic methods for detection of pyruvate in artificial serum.
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Affiliation(s)
- Yanping Zhao
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University, Changchun, 130012, PR China
| | - Xu Geng
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University, Changchun, 130012, PR China
| | - Xiaoling Zhou
- Gerontology Department, The Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, 130021, PR China
| | - Li Xu
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University, Changchun, 130012, PR China
| | - Shuai Li
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University, Changchun, 130012, PR China
| | - Zhengqiang Li
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University, Changchun, 130012, PR China
| | - Yi Guo
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University, Changchun, 130012, PR China.
| | - Chen Li
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, 130062, PR China.
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Miholjcic TBS, Halse H, Bonvalet M, Bigorgne A, Rouanne M, Dercle L, Shankar V, Marabelle A. Rationale for LDH-targeted cancer immunotherapy. Eur J Cancer 2023; 181:166-178. [PMID: 36657325 DOI: 10.1016/j.ejca.2022.11.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 12/15/2022]
Abstract
Immunotherapies have significantly improved the survival of patients in many cancers over the last decade. However, primary and secondary resistances are encountered in most patients. Unravelling resistance mechanisms to cancer immunotherapies is an area of active investigation. Elevated levels of circulating enzyme lactate dehydrogenase (LDH) have been historically considered in oncology as a marker of bad prognosis, usually attributed to elevated tumour burden and cancer metabolism. Recent evidence suggests that elevated LDH levels could be independent from tumour burden and contain a negative predictive value, which could help in guiding treatment strategies in immuno-oncology. In this review, we decipher the rationale supporting the potential of LDH-targeted therapeutic strategies to tackle the direct immunosuppressive effects of LDH on a wide range of immune cells, and enhance the survival of patients treated with cancer immunotherapies.
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Affiliation(s)
- Tina B S Miholjcic
- Faculté de Médecine, Université de Genève, Genève, Switzerland; Laboratoire de Recherche Translationnelle en Immunothérapie (LRTI), INSERM U1015, Gustave Roussy, Villejuif, France
| | - Heloise Halse
- Laboratoire de Recherche Translationnelle en Immunothérapie (LRTI), INSERM U1015, Gustave Roussy, Villejuif, France; INSERM UMR 1163, Imagine Institute, Université de Paris, F-75015 Paris, France
| | - Mélodie Bonvalet
- Laboratoire de Recherche Translationnelle en Immunothérapie (LRTI), INSERM U1015, Gustave Roussy, Villejuif, France
| | - Amélie Bigorgne
- Laboratoire de Recherche Translationnelle en Immunothérapie (LRTI), INSERM U1015, Gustave Roussy, Villejuif, France; INSERM UMR 1163, Imagine Institute, Université de Paris, F-75015 Paris, France
| | - Mathieu Rouanne
- Laboratoire de Recherche Translationnelle en Immunothérapie (LRTI), INSERM U1015, Gustave Roussy, Villejuif, France; Department of Microbiology and Immunology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA; Département d'Urologie, Hôpital Foch, UVSQ, Université Paris-Saclay, 92150 Suresnes, France
| | - Laurent Dercle
- Department of Radiology, New York Presbyterian Hospital, Columbia University Irving Medical Center, New York, NY, USA
| | - Vishnu Shankar
- Immunology Program, School of Medicine, Stanford University, CA, USA
| | - Aurélien Marabelle
- Laboratoire de Recherche Translationnelle en Immunothérapie (LRTI), INSERM U1015, Gustave Roussy, Villejuif, France; Département d'Innovation Thérapeutique et d'Essais Précoces (DITEP), Gustave Roussy, 94805 Villejuif, France; Centre d'Investigation Clinique BIOTHERIS, INSERM CIC1428, Gustave Roussy, Villejuif, France; Faculté de Médecine, Université Paris-Saclay, Le Kremlin-Bicêtre, France.
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Liam CCK, Tiao JYH, Yap YY, Lee YL, Sathar J, McRae S, Davis A, Curnow J, Bird R, Choi P, Angchaisuksiri P, Tien SL, Lam JCM, Oh D, Kim JS, Yoon SS, Wong RSM, Lauren C, Merriman EG, Enjeti A, Smith M, Baker RI. Validating lactate dehydrogenase (LDH) as a component of the PLASMIC predictive tool (PLASMIC-LDH). Blood Res 2023; 58:36-41. [PMID: 36632683 PMCID: PMC10063598 DOI: 10.5045/br.2023.2022133] [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: 07/11/2022] [Revised: 11/11/2022] [Accepted: 01/05/2023] [Indexed: 01/13/2023] Open
Abstract
Background The PLASMIC score is a convenient tool for predicting ADAMTS13 activity of <10%. Lactate dehydrogenase (LDH) is widely used as a marker of haemolysis in thrombotic thrombocytopenic purpura (TTP) monitoring, and could be used as a replacement marker for lysis. We aimed to validate the PLASMIC score in a multi-centre Asia Pacific region, and to explore whether LDH could be used as a replacement marker for lysis. Methods Records of patients with thrombotic microangiopathy (TMA) were reviewed. Patients' ADAMTS13 activity levels were obtained, along with clinical/laboratory findings relevant to the PLASMIC score. Both PLASMIC scores and PLASMIC-LDH scores, in which LDH replaced traditional lysis markers, were calculated. We generated a receiver operator characteristics (ROC) curve and compared the area under the curve values (AUC) to determine the predictive ability of each score. Results 46 patients fulfilled the inclusion criteria, of which 34 had ADAMTS13 activity levels of <10%. When the patients were divided into intermediate-to-high risk (scores 5-7) and low risk (scores 0-4), the PLASMIC score showed a sensitivity of 97.1% and specificity of 58.3%, with a positive predictive value (PPV) of 86.8% and negative predictive value (NPV) of 87.5%. The PLASMIC-LDH score had a sensitivity of 97.1% and specificity of 33.3%, with a PPV of 80.5% and NPV of 80.0%. Conclusion Our study validated the utility of the PLASMIC score, and demonstrated PLASMIC-LDH as a reasonable alternative in the absence of traditional lysis markers, to help identify high-risk patients for treatment via plasma exchange.
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Affiliation(s)
- Christopher Chin Keong Liam
- Perth Blood Institute, Perth, Australia.,Western Australia Centre of Thrombosis and Haemostasis (WACTH), Murdoch University, Perth, Australia.,Haematology, Hospital Ampang, Malaysia
| | - Jim Yu-Hsiang Tiao
- Perth Blood Institute, Perth, Australia.,Western Australia Centre of Thrombosis and Haemostasis (WACTH), Murdoch University, Perth, Australia
| | | | - Yi Lin Lee
- Centre for Clinical Trials, Hospital Ampang, Selangor, Malaysia
| | | | - Simon McRae
- Haematology, Northern Cancer Service, Tasmania, Australia
| | - Amanda Davis
- Haematology, The Alfred Hospital, Melbourne,Australia
| | | | - Robert Bird
- Haematology, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
| | - Philip Choi
- Haematology, The Canberra Hospital, Canberra, Australia
| | - Pantep Angchaisuksiri
- Haematology and Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | | | | | - Doyeun Oh
- Internal Medicine, Cha Bundang Medical Centre, Cha University, Seongnam, Korea
| | - Jin Seok Kim
- Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Sung-Soo Yoon
- Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Raymond Siu-Ming Wong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong
| | - Carolyn Lauren
- Haematology, Canterbury District Health Board, Christchurch, Auckland, New Zealand
| | - Eileen Grace Merriman
- Haematology, North Shore Hospital, Auckland, New Zealand.,Haematology, Waitemata District Health Board, Auckland, New Zealand
| | - Anoop Enjeti
- Calvery Mater Hospital Newcastle, Waratah, New South Wales, Australia
| | - Mark Smith
- Haematology, Canterbury District Health Board, Christchurch, Auckland, New Zealand
| | - Ross Ian Baker
- Perth Blood Institute, Perth, Australia.,Western Australia Centre of Thrombosis and Haemostasis (WACTH), Murdoch University, Perth, Australia
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Kumari K, Swamy S. Field validated biomarker (ValidBIO) based assessment of impacts of various pollutants in water. Environ Sci Pollut Res Int 2023; 30:5347-5370. [PMID: 36414892 DOI: 10.1007/s11356-022-24006-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 10/31/2022] [Indexed: 06/16/2023]
Abstract
The sensitivity of fish towards pollutants serves as an excellent tool for the analysis of water pollution. The effluents generated from various anthropogenic activities may contain heavy metals, pesticides, microplastics, and persistent organic pollutants (POPs) and ultimately find its way to aquatic environment. The enzymatic activities of fish collected from water bodies near major cities, oil spillage sites, agricultural land, and intensively industrialized areas have been reported to be significantly impacted in various field studies. These significant alterations in enzymatic activities act as a biomarker for monitoring purposes. The use of biomarkers not only helps in the identification of known and unknown pollutants and their detrimental health impacts, but also identifies the interaction between pollutants and organisms. The conventional method majorly used is physicochemical analysis, which is recognized as the backbone of the system for monitoring water quality. In physicochemical monitoring, major problems exist in assessing or predicting biological effects from chemical or physical data. Xenobiotic-induced enzymatic changes in fish may serve as an intuitive and efficient biomarker for determining contaminants in water bodies. Therefore, field validated biomarker (ValidBIO) approach needs to be integrated in water quality monitoring program for environmental health risk assessment of aquatic life impacted due to various point and non-point sources of water pollution.
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Affiliation(s)
- Kanchan Kumari
- CSIR-National Environmental Engineering Research Institute, Kolkata Zonal Centre, Kolkata, West Bengal, 700107, India.
| | - Senerita Swamy
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440020, India
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Wang S, Lv J, Lv J, Li H, Liu C, Jiang H, Zhang M, Deng Z, Li G. Prognostic value of lactate dehydrogenase in non-small cell lung cancer patients with brain metastases: a retrospective cohort study. J Thorac Dis 2022; 14:4468-4481. [PMID: 36524070 PMCID: PMC9745527 DOI: 10.21037/jtd-22-1502] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 10/09/2022] [Accepted: 11/08/2022] [Indexed: 07/22/2023]
Abstract
BACKGROUND At present, although there are some known molecular markers for the prognosis of non-small cell lung cancer (NSCLC) brain metastases, but there are still shortcomings in sensitivity and specificity. Lactate dehydrogenase (LDH) is one of the key enzymes involved in malignancy vital glycolytic pathway. Elevated serum LDH levels are reported significantly associated with a poor prognosis in various malignancies. However, there is currently no consensus regarding the prognostic value of LDH in NSCLC patients with brain metastases. METHODS We retrospectively analyzed 224 patients diagnosed with lung cancer brain metastases between January 2006 and June 2020 after excluding patients meeting combined with other malignancies and inaccurate clinical information. The LDH cutoff values were obtained using a restricted cubic spline (RCS) model, and the patients were divided into two groups according to the optimal cut-off value (180 U/L). 107 patients with LDH ≤180 (47.77%) and 117 patients with LDH >180 (52.23%) were identified. Univariate and multivariate logistic regression analyses were performed to identify the risk factors. The overall survival (OS) time was defined as the time from the first diagnosis of brain metastases to the last follow-up or death. Of the included patients, 147 survived and 77 died. The Kaplan-Meier method was used to illustrate the OS difference between the two groups. Finally, sensitivity analysis was employed to evaluate the robustness of the results. RESULTS The OS rate was significantly lower in the high LDH group versus the low LDH group (P=0.009). The median survival times of the high and low LDH groups were approximately 16 and 33 months, respectively. Multivariate analysis showed that high LDH was associated with a significantly worse OS [adjusted hazard ratio (aHR), 1.567; 95% confidence interval (CI): 1.058 to 2.32, P=0.025] with adjustment for covariables that P<0.05 in univariate analysis. Sensitivity analysis indicated that the results of this study are robust, despite potential unmeasured confounders. CONCLUSIONS High level of serum LDH indicates poor prognosis for patients with NSCLC brain metastases. This finding may provide useful prognostic information for patients and clinicians to choose more aggressive treatment strategies.
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Affiliation(s)
- Shuting Wang
- Department of Thoracic Surgery II, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Kunming, China
| | - Jia Lv
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Kunming, China
| | - Juan Lv
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Kunming, China
| | - Heng Li
- Department of Thoracic Surgery II, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Kunming, China
| | - Chao Liu
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Kunming, China
| | - Hongmei Jiang
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Kunming, China
| | - Meng Zhang
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Kunming, China
| | - Zhiyong Deng
- Department of Nuclear Medicine, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Kunming, China
| | - Gaofeng Li
- Department of Thoracic Surgery II, The Third Affiliated Hospital of Kunming Medical University, Tumor Hospital of Yunnan Province, Kunming, China
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Kalmer M, Pannen K, Lemanzyk R, Wirths C, Baumeister J, Maurer A, Kricheldorf K, Schifflers J, Gezer D, Isfort S, Brümmendorf TH, Koschmieder S, Chatain N. Clonogenic assays improve determination of variant allele frequency of driver mutations in myeloproliferative neoplasms. Ann Hematol 2022. [PMID: 36269400 DOI: 10.1007/s00277-022-05000-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 10/01/2022] [Indexed: 11/27/2022]
Abstract
Molecular diagnostics moves more into focus as technology advances. In patients with myeloproliferative neoplasms (MPN), identification and monitoring of the driver mutations have become an integral part of diagnosis and monitoring of the disease. In some patients, none of the known driver mutations (JAK2V617F, CALR, MPL) is found, and they are termed "triple negative" (TN). Also, whole-blood variant allele frequency (VAF) of driver mutations may not adequately reflect the VAF in the stem cells driving the disease. We reasoned that colony forming unit (CFU) assay-derived clonogenic cells may be better suited than next-generation sequencing (NGS) of whole blood to detect driver mutations in TN patients and to provide a VAF of disease-driving cells. We have included 59 patients carrying the most common driver mutations in the establishment or our model. Interestingly, cloning efficiency correlated with whole blood VAF (p = 0.0048), suggesting that the number of disease-driving cells correlated with VAF. Furthermore, the clonogenic VAF correlated significantly with the NGS VAF (p < 0.0001). This correlation was lost in patients with an NGS VAF <15%. Further analysis showed that in patients with a VAF <15% by NGS, clonogenic VAF was higher than NGS VAF (p = 0.003), suggesting an enrichment of low numbers of disease-driving cells in CFU assays. However, our approach did not enhance the identification of driver mutations in 5 TN patients. A significant correlation of lactate dehydrogenase (LDH) serum levels with both CFU- and NGS-derived VAF was found. Our results demonstrate that enrichment for clonogenic cells can improve the detection of MPN driver mutations in patients with low VAF and that LDH levels correlate with VAF.
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Kumari K, Singh A, Swamy S, Singhar RS, Thakur S. Use of enzymatic biomarkers of Labeo rohita to study the effect of polybrominated diphenyl ether (BDE- 209) via dietary exposure in laboratory conditions. Environ Monit Assess 2022; 194:499. [PMID: 35695941 DOI: 10.1007/s10661-022-09963-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 03/19/2022] [Indexed: 06/15/2023]
Abstract
Fishes have been widely used as a representative to estimate the health of an aquatic ecosystem. In the present study, Labeo rohita was selected for biomarker study against decabromodiphenyl ether (BDE-209), a persistent organic pollutant (POP), as it is a widely used Indian carp. The results suggested significant effects on the optimum metabolism of Labeo rohita. After 48 to 72 h of exposure, most of the biomarkers such as lactate dehydrogenase (LDH), creatine kinase (CK), serum glutamic pyruvic transaminase (SGPT), serum glutamic oxaloacetic transaminase (SGOT), and hepatosomatic index (HSI) increased drastically indicating the higher index of tissue and liver damage. On the contrary, succinic dehydrogenase (SDH), acetylcholinesterase (AChE), and alkaline phosphatase (ALP) showed a reverse trend suggesting the shifting of fish metabolism towards anaerobic respiration mode because of induced stress. Increased catalase (CAT) activity was also observed, which indicated increased abundance of reactive hydroxyl species and therefore a possible oxidative stress in fishes. It is further suggested to understand and examine the biotransformation characteristics and degradation pathways of polybrominated diphenyl ether (PBDE)s, which would be useful to comprehend their environmental fate.
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Affiliation(s)
- Kanchan Kumari
- CSIR-National Environmental Engineering Research Institute, Kolkata Zonal Centre, Kolkata, 700 107, West Bengal, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India.
| | - Anshika Singh
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440 020, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India
| | - Senerita Swamy
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440 020, India
| | | | - Surabhi Thakur
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440 020, India
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10
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Wang A, Tian X, Zuo Y, Wang X, Xu Q, Meng X, Chen P, Li H, Wang Y. High lactate dehydrogenase was associated with adverse outcomes in patients with acute ischemic stroke or transient ischemic attack. Ann Palliat Med 2021; 10:10185-10195. [PMID: 34498480 DOI: 10.21037/apm-21-2195] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 08/28/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND Previous studies found that lactate dehydrogenase (LDH) levels predicted poor outcomes in hemorrhagic stroke, but the prognostic role of LDH in ischemic stroke (IS) remains unclear. The aim of this study is to investigate the association between LDH and adverse clinical outcomes in patients with acute ischemic stroke (AIS) or transient ischemic attack (TIA). METHODS All patients were enrolled from the Third China National Stroke Registry (CNSR-III). Adverse outcomes included all-cause death and poor functional outcomes [defined as modified Rankin Scale (mRS) score 3-6 and 2-6] at 3 months and 1 year. Multivariable Cox proportional hazards models and logistic regressions were used to evaluate the association of LDH with risk of all-cause death and poor functional outcomes, respectively. RESULTS Among 9,796 included patients, the median [interquartile range (IQR)] of LDH was 175.00 (151.00-205.40) U/L. After adjustment for confounding factors, patients in the highest LDH quartile had a higher risk of all-cause death [hazard ratio (HR), 2.23; 95% confidence interval (CI), 1.27-3.90], and a higher proportion of mRS score 3-6 [odds ratio (OR), 1.54; 95% CI, 1.26-1.90] and mRS score 2-6 (OR, 1.56; 95% CI, 1.32-1.84) at 3 months. We also observed a J-shaped association between LDH and risk of each outcome. Consistent results were found at 1 year. CONCLUSIONS Higher LDH levels are independently associated with adverse outcomes in patients with AIS or TIA.
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Affiliation(s)
- Anxin Wang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xue Tian
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, Beijing, China; Beijing Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Yingting Zuo
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, Beijing, China; Beijing Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Xuechun Wang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Qin Xu
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Xia Meng
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Pan Chen
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Hao Li
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Yongjun Wang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China; Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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Abstract
NAD+ is a redox cofactor essential to the proper functioning of a variety of important metabolic pathways, including key steps in mitochondrial energy metabolism. In addition, it serves as a signaling substrate for enzymes such as sirtuins and the poly-ADP ribosyl-polymerase family of enzymes. Sirtuins, which are NAD+-dependent protein deacylases, harness changes in cellular NAD+ concentrations to produce changes in protein acylation status, thereby affecting downstream functions including energy metabolism, stress resistance, and cell survival. Thus, the availability of NAD+ in cells, or in specific organelles such as the mitochondrion, regulates downstream signaling and key biological processes. This concept has driven a need for researchers to easily and precisely measure NAD+ concentrations in biological samples. We herein describe several protocols for the measurement of NAD+ and NADH concentrations in tissues, cells, or subcellular compartments such as mitochondria. These protocols include a cycling assay that can quickly measure NAD+ or NADH levels using a plate reader equipped with fluorescence measurement capabilities. This plate assay relies only upon commercially available materials in addition to the biological samples of interest. In addition, we describe a protocol employing stable isotope-labeled NAD+ as an internal standard to determine biological NAD+ content by isotope-dilution methods. This method requires mass spectrometry to ratio endogenous NAD+ with exogenous isotope-labeled NAD+ to obtain quantification using HPLC and mass spectrometry.
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Affiliation(s)
- Yue Yang
- Department of Pharmacology, Weill Cornell Medical College, New York, NY, USA
| | - Anthony A Sauve
- Department of Pharmacology, Weill Cornell Medical College, New York, NY, USA.
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12
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Feng Z, Liu X, Lian M, Zhang L. Diagnostic, monitoring, and prognostic value of combined detection of lactate dehydrogenase, β2-transferrin, and interleukin-10 for acute intracranial infections. Am J Transl Res 2021; 13:2581-2589. [PMID: 34017417 PMCID: PMC8129277] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 11/17/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To investigate the value of the combined detection of lactate dehydrogenase (LDH), β2-transferrin (β-2Tf), and interleukin-10 (IL-10) for identification of acute intracranial infections such as meningitis. METHODS A total of 103 patients were placed in the suppurative meningitis group (SMG), 124 patients in the viral meningitis group (VMG). Another 86 patients without any infectious diseases of the central nervous system constituted the control group (CG). The levels of LDH and β-2Tf in the cerebrospinal fluid were determined by enzymatic methods; IL-10 expression was measured by ELISA. The correlation between infection and the LDH, β-2Tf, and IL-10 levels was analyzed by linear correlation analysis, and ROC curve analysis was applied to determine the diagnostic value of combined detection of LDH, β-2Tf, and IL-10 levels for intracranial infections. RESULTS LDH, β-2Tf, and IL-10 levels negatively correlated with the treatment time in both the SMG (r = -0.52, -0.97, and -0.24, respectively, P < 0.01) and VMG (r = -0.70, -0.91, and -0.25, respectively, P < 0.01). Sensitivity and specificity of combined detection of LDH, β-2Tf, and IL-10 for the diagnosis of SM was 80.47% and 75.33%, respectively, while those for VM were 84.24% and 79.24%, respectively. CONCLUSION Combined detection is an excellent indicator for the diagnosis and treatment of intracranial infections.
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Affiliation(s)
- Zhong Feng
- Department of Neurology, The First People's Hospital of Wenling Wenling 317500, Zhejiang, China
| | - Xuan Liu
- Department of Neurology, The First People's Hospital of Wenling Wenling 317500, Zhejiang, China
| | - Mengjia Lian
- Department of Neurology, The First People's Hospital of Wenling Wenling 317500, Zhejiang, China
| | - Li Zhang
- Department of Neurology, The First People's Hospital of Wenling Wenling 317500, Zhejiang, China
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13
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Pereira-Nunes A, Simões-Sousa S, Pinheiro C, Miranda-Gonçalves V, Granja S, Baltazar F. Targeting lactate production and efflux in prostate cancer. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165894. [PMID: 32650130 DOI: 10.1016/j.bbadis.2020.165894] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 12/24/2022]
Abstract
Prostate cancer (PCa) is the most commonly diagnosed cancer in men worldwide. Screening and management of PCa remain controversial and, therefore, the discovery of novel molecular biomarkers is urgently needed. Alteration in cancer cell metabolism is a recognized hallmark of cancer, whereby cancer cells exhibit high glycolytic rates with subsequent lactate production, regardless of oxygen availability. To maintain the hyperglycolytic phenotype, cancer cells efficiently export lactate through the monocarboxylate transporters MCT1 and MCT4. The impact of inhibiting lactate production/extrusion on PCa cell survival and aggressiveness was investigated in vitro and ex vivo using primary tumor and metastatic PCa cell lines and the chicken embryo chorioallantoic membrane (CAM) model. In this study, we showed the metastatic PCa cell line (DU125) displayed higher expression levels of MCT1/4 isoforms and glycolysis-related markers than the localized prostate tumor-derived cell line (22RV1), indicating these proteins are differentially expressed throughout prostate malignant transformation. Moreover, disruption of lactate export by MCT1/4 silencing resulted in a decrease in PCa cell growth and motility. To support these results, we pharmacological inhibited lactate production (via inhibition of LDH) and release (via inhibition of MCTs) and a reduction in cancer cell growth in vitro and in vivo was observed. In summary, our data provide evidence that MCT1 and MCT4 are important players in prostate neoplastic progression and that inhibition of lactate production/export can be explored as a strategy for PCa treatment.
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Chang CH, Zhou XW, Wang YC, Lee TH. Differential effects of hypothermal stress on lactate metabolism in fresh water- and seawater-acclimated milkfish, Chanos chanos. Comp Biochem Physiol A Mol Integr Physiol 2020; 248:110744. [PMID: 32569829 DOI: 10.1016/j.cbpa.2020.110744] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/01/2020] [Accepted: 06/08/2020] [Indexed: 10/24/2022]
Abstract
The milkfish Chanos chanos, an economically important cultured marine species in Southeast Asia, exhibits stenothermal and euryhaline characteristics and huge mortality usually occurs during extreme cold weather in winter. Under conditions beyond optimal temperatures, ectothermic species experience an increase in anaerobic glycolysis. To better understand the hypothermal acclimation response of this tropical species, the lactate metabolic profiles of freshwater (FW)- and seawater (SW)-acclimated milkfish were compared under control (optimal temperature; 28 °C) and hypothermal treatment (18 °C) conditions. In this study, the lactate dehydrogenase (LDH) isoform genes, ldha and ldhb, were identified in milkfish livers and muscles, respectively. The LDH is a bidirectional enzyme that triggered the conversion of pyruvate to lactate via anaerobic glycolysis as LDH exhibits the reductase activity (LDH-R), while via the reverse direction as LDH exhibits the oxidase activity (LDH-O). The hypothermal stress significantly upregulated the LDH-R activity in the muscles and the monocarboxylate transporter activity in both muscles and livers, of SW- and FW-acclimated milkfish. The levels of blood lactate, however, decreased in SW-acclimated milkfish. Under hypothermal stress, anaerobic metabolism increased in the muscles of both FW and SW individuals, whereas the liver of SW-acclimated milkfish showed better acute phase capacity to utilize blood lactate than FW-acclimated milkfish. Taken together, in the present study, the major functions of the bidirectional enzyme LDH were identified according to its LDH-O and LDH-R activities. Furthermore, environmental salinities were found to affect the acute anaerobic metabolic strategies of euryhaline teleosts under hypothermal stress and were correlated with their hypothermal tolerance ability.
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Affiliation(s)
- Chia-Hao Chang
- Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan; The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan
| | - Xiu-Wei Zhou
- Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan
| | - Yu-Chun Wang
- Planning and Information Division, Fisheries Research Institute, Keelung 202, Taiwan
| | - Tsung-Han Lee
- Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan; The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan.
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15
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Cheng G, Pi Z, Zheng Z, Liu S, Liu Z, Song F. Magnetic nanoparticles-based lactate dehydrogenase microreactor as a drug discovery tool for rapid screening inhibitors from natural products. Talanta 2019; 209:120554. [PMID: 31892010 DOI: 10.1016/j.talanta.2019.120554] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/31/2019] [Accepted: 11/09/2019] [Indexed: 12/15/2022]
Abstract
Lactate dehydrogenase (LDH), catalyzing the conversion of pyruvate to lactate during glycolysis, is overexpressed in cancer cells. LDH inhibitors are a promising approach for the treatment of cancer. But up till now, there is limited method for rapid screening of LDH inhibitors. Herein, the use of LDH functionalized magnetic nanoparticles as a drug discovery tool for the selective enrichment of LDH potential inhibitors from natural products was firstly reported in this study. Firstly, LDH was immobilized onto the surface of amino-modified magnetic nanoparticles via covalent binding. In order to obtain the maximum enzyme activity, the immobilization conditions including pH, time and LDH concentration were optimized. The amount of LDH immobilized on MNPs was about 49 μg enzyme/mg carrier under the optimized conditions. Subsequently, the ligand fishing assay was performed to validate the specificity and selectivity of immobilized LDH using a model mixture, which consisted of galloflavin, chlorogenic acid and verbascoside. Finally, the immobilized LDH approach combined with ultra-high performance liquid chromatography-tandem mass spectrometry technique (UHPLC-MS/MS) was applied to screen potential LDH inhibitors from two anthraquinone-rich natural products (Rhubarb and Polygonum cuspidatum). Nine and six compounds were identified from Rhubarb and Polygonum cuspidatum extracts respectively, of which three compounds were common to both. Our results have proven that LDH functionalized magnetic nanoparticles have a significant prospect for drug discovery from complex matrices.
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Affiliation(s)
- Guorong Cheng
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Science and Technology of China, Hefei, 230029, China
| | - Zifeng Pi
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Zhong Zheng
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Shu Liu
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Science and Technology of China, Hefei, 230029, China.
| | - Zhiqiang Liu
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Fengrui Song
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Science and Technology of China, Hefei, 230029, China.
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16
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Mori K, Kimura S, Parizi MK, Enikeev DV, Glybochko PV, Seebacher V, Fajkovic H, Mostafaei H, Lysenko I, Janisch F, Egawa S, Shariat SF. Prognostic Value of Lactate Dehydrogenase in Metastatic Prostate Cancer: A Systematic Review and Meta-analysis. Clin Genitourin Cancer 2019; 17:409-418. [PMID: 31558410 DOI: 10.1016/j.clgc.2019.07.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 07/03/2019] [Accepted: 07/15/2019] [Indexed: 02/08/2023]
Abstract
The purpose of this study was to assess the prognostic value of lactate dehydrogenase (LDH) in patients with metastatic prostate cancer (PC). A systematic review and meta-analysis was performed in March 2019 according to the Preferred Reporting Items for Systematic Review and Meta-analysis statement. Studies were deemed eligible if they compared patients with PC with high versus low LDH to determine the predictive value of LDH for overall survival (OS), cancer-specific survival (CSS), and progression-free survival (PFS). We performed a formal meta-analysis for both OS and PFS. A total of 59 articles with 14,851 patients were included in the systematic review and 45 studies with 12,224 patients for the qualitative assessment. High LDH was associated with both worse OS (pooled hazard ratio [HR], 2.07; 95% confidence interval [CI], 1.75-2.44) and PFS (pooled HR, 1.08; 95% CI, 1.01-1.16). In subgroup analyses of both patients with castration-resistant prostate cancer (CRPC) and those with hormone-sensitive prostate cancer (HSPC), LDH was associated with OS (pooled HR, 2.02; 95% CI, 1.69-2.42 and pooled HR, 2.25; 95% CI, 1.78-2.84, respectively). In patients with CRPC, LDH was associated with OS in those treated with docetaxel systemic chemotherapy and androgen receptor-axis-targeting agents (pooled HR, 2.03; 95% CI, 1.37-3.00 and pooled HR, 1.79; 95% CI, 1.25-2.57, respectively). Elevated serum levels of LDH were associated with an increased risk of mortality and progression in patients with metastatic PC. LDH was independently associated with OS in both patients with CRPC and HSPC. LDH could be integrated into prognostic tools that help guide treatment strategy, thereby facilitating the shared decision-making process.
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Affiliation(s)
- Keiichiro Mori
- Department of Urology, Medical University of Vienna, Vienna, Austria; Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Shoji Kimura
- Department of Urology, Medical University of Vienna, Vienna, Austria; Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Mehdi Kardoust Parizi
- Department of Urology, Medical University of Vienna, Vienna, Austria; Department of Urology, Shariati Hospital, Tehran University of Medical Sciences, Teheran, Iran
| | - Dmitry V Enikeev
- Institute for Urology and Reproductive Health, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Petr V Glybochko
- Institute for Urology and Reproductive Health, I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | | | - Harun Fajkovic
- Department of Urology, Medical University of Vienna, Vienna, Austria; Karl Landsteiner Institute of Urology and Andrology, Vienna, Austria
| | - Hadi Mostafaei
- Department of Urology, Medical University of Vienna, Vienna, Austria; Department of Urology, Medical University of Hamburg, Hamburg, Germany
| | - Ivan Lysenko
- Department of Urology, Medical University of Vienna, Vienna, Austria
| | - Florian Janisch
- Department of Urology, Medical University of Vienna, Vienna, Austria; Research Center for Evidence-based Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shin Egawa
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Shahrokh F Shariat
- Department of Urology, Medical University of Vienna, Vienna, Austria; Department of Urology, Weill Cornell Medical College, New York, NY; Department of Urology, University of Texas Southwestern, Dallas, TX; Karl Landsteiner Institute of Urology and Andrology, Vienna, Austria; Department of Urology, Second Faculty of Medicine, Charles University, Prague, Czech Republic; Institute for Urology and Reproductive Health, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.
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17
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Warren S, Munteanu G, Rathod D, McCormac T, Dempsey E. Scanning electrochemical microscopy imaging of poly (3,4-ethylendioxythiophene)/thionine electrodes for lactate detection via NADH electrocatalysis. Biosens Bioelectron 2019; 137:15-24. [PMID: 31077986 DOI: 10.1016/j.bios.2019.04.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 04/08/2019] [Accepted: 04/21/2019] [Indexed: 11/21/2022]
Abstract
Herein we report the use of scanning electrochemical microscopy (SECM) together with electrochemical and spectroscopic techniques to develop and characterise a stable and uniformly reactive chemically modified platinum electrode for NADH electrocatalysis. In order to achieve this, a range of different approaches for thionine entrapment within an electropolymerised poly (3,4-ethylendioxythiophene) (PEDOT) film were evaluated using SECM imaging in the presence of NADH, demonstrating the uniformity of the reactive layer towards NADH oxidation. The effect of electrolyte type and time scale employed during PEDOT electropolymerisation was examined with respect to thionine loading and the resulting charge transport diffusion coefficient (DCT) estimated via chronoamperometry. These studies indicated a decrease in DCT as thionine loading increased within the PEDOT film, suggesting that charge transport was diffusion limited within the film. Additionally, thionine functionalised nanotubes were formed, providing a stable support for lactate dehydrogenase entrapment while lowering the rate of thionine leaching, determined via SECM imaging. This enabled lactate determination at Eapp = 0.0 V vs Ag/AgCl over the range 0.25-5 mM in the presence of 1 mM NAD+.
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18
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Feng W, Wang Y, Zhu X. Baseline serum lactate dehydrogenase level predicts survival benefit in patients with metastatic colorectal cancer receiving bevacizumab as first-line chemotherapy: a systematic review and meta-analysis of 7 studies and 1,219 patients. Ann Transl Med 2019; 7:133. [PMID: 31157254 DOI: 10.21037/atm.2019.02.45] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Bevacizumab, a humanized monoclonal antibody against vascular epithelial growth factor, plays a significant role in first-line, second-line, beyond-progression, and maintenance treatment of patients with metastatic colorectal carcinoma (mCRC). Nevertheless, there are currently no biomarkers available to predict patient response or resistance to bevacizumab, which would be useful in clinical trials. Methods Using PRISMA guidelines, we conducted a systematic review and meta-analysis of the association between serum lactate dehydrogenase (LDH) level and progression-free survival (PFS), overall survival (OS), and objective response rate in mCRC patients treated with bevacizumab-based first-line chemotherapy. A comprehensive, computerized literature search of PubMed, the Web of Science, Scopus, Ovid, and the gray literature was performed. Only studies conforming to specific eligibility criteria were included. Pooled hazard ratios (HRs) were estimated using random-effects or fixed-effects models according to heterogeneity between studies. Sensitivity analysis was conducted to evaluate the stability of the results by removing each individual study from the meta-analysis. Results Seven eligible studies of 1,219 total patients were included in the analysis. Meta-analysis of all studies revealed that high serum LDH level is associated with shorter PFS (HR: 1.43, 95% CI: 1.05-1.94; P=0.023) and OS (HR: 1.667, 95% CI: 1.230-2.259; P=0.001) times in mCRC patients treated with bevacizumab-based first-line chemotherapy. However, there was no significant association between serum LDH and objective response rate. Conclusions High serum LDH level is significantly associated with shorter PFS and OS time and may have utility as a prognostic factor for mCRC patients receiving bevacizumab as first-line chemotherapy and as a predictive factor for those receiving bevacizumab-based therapy at other times.
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Affiliation(s)
- Wanjing Feng
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Yue Wang
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China.,Department of Urology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Xiaodong Zhu
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Mohajertehran F, Ayatollahi H, Jafarian AH, Khazaeni K, Soukhtanloo M, Shakeri MT, Mohtasham N. Overexpression of Lactate Dehydrogenase in the Saliva and Tissues of Patients with Head and Neck Squamous Cell Carcinoma. Rep Biochem Mol Biol 2019; 7:142-149. [PMID: 30805393 PMCID: PMC6374058] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 01/17/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Head and neck squamous cell carcinoma (HNSCC) is the sixth most common malignancy that is associated with high morbidity and mortality. Salivary lactate dehydrogenase (LDH concentration), as an expression of cellular necrosis, may be a special marker of lesions that occur with changes in the integrity of the oral mucosa. This study was performed to determine the accuracy of salivary LDH as a clinical marker for HNSCC detection and to investigate the relationship between salivary LDH levels and tissue tumor detection. METHODS The case group consisted of 44 HNSCC patients and the control group consisted of 44 healthy subjects. The stage and grade of HNSCC were determined, and the LDH levels in collected saliva samples were measured in all subjects. The expression of LDH in tumors and healthy tissue margins was evaluated via immunohistochemistry. RESULTS The expression of LDH in the saliva of patients with HNSCC is significantly higher than that in the saliva of the healthy control group. The expression of salivary LDH in patients with oral squamous cell carcinoma (OSCC) is significantly higher than that in the other patients and healthy individuals in the control group. The levels of salivary LDH in patients with SCC of the tongue and lower oral cavity were significantly higher than those in other patients affected with SCC in other parts of the head and neck (P<0.01). CONCLUSION As this enzyme increases simultaneously in both tumoral tissues and saliva, it can serve as a useful diagnostic marker for the early diagnosis and prediction of HNSCC.
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Affiliation(s)
| | - Hossein Ayatollahi
- Cancer Molecular Pathology Research Center, Department of Hematology and Blood Bank, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Amir Hossein Jafarian
- Cancer Molecular Pathology Research Center, Department of Pathology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Kamran Khazaeni
- Department of Otorhinolaryngology, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mohammad Soukhtanloo
- Department of Biochemistry, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | | | - Nooshin Mohtasham
- Dental Research Center, Mashhad University of Medical Science, Mashhad, Iran.
- Oral and Maxillofacial Disease Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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Kaito S, Kanemasa Y, Sasaki Y, Okuya T, Yamaguchi T, Funasaka C, Shimoyama T, Omuro Y, Hishima T, Maeda Y. A new prognostic score comprising lactate dehydrogenase, albumin and neutrophil to lymphocyte ratio to predict sensitivity to first-line chemotherapy in patients with peripheral T-cell lymphomas. Int J Hematol 2018; 107:451-9. [PMID: 29103138 DOI: 10.1007/s12185-017-2362-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 11/01/2017] [Accepted: 11/01/2017] [Indexed: 12/18/2022]
Abstract
No standard therapy for peripheral T-cell lymphomas (PTCLs) has been established, and treatment outcomes are poor. Upfront stem cell transplantation has been investigated in several studies, some of which have reported promising outcomes. However, some patients maintain long-term remission after chemotherapy alone. It is thus important to predict sensitivity to first-line chemotherapy to optimize treatment strategies. In the present study, we retrospectively analyzed time to treatment failure (TTF) of first-line chemotherapy in 59 patients with PTCLs. On multivariate analysis for TTF, elevated lactate dehydrogenase level, hypoalbuminemia, and high neutrophil-to-lymphocyte ratio were significant prognostic factors. Using these three factors, we also developed a new model that effectively distinguished patient outcomes. The TTF rate at 1 year from diagnosis was 71.4% in patients with score 0 (0 factor), 31.8% with score 1 (1 factor) and 4.5% with score 2 (2-3 factors) (P < 0.001). The prognostic power was superior to that of the Prognostic Index for PTCL-unspecified score. Patients with scores of 1 and 2 had poor TTF, and may be candidates for upfront stem cell transplantation if they respond to first-line chemotherapy. Further investigation in a larger cohort is warranted to determine the general applicability of this score.
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Liu Q, Fu X, Su X, Wang X, Zhang Y, Yang H, Hu Y, Wen J, Fu J. Elevated pretreatment serum lactate dehydrogenase level predicts inferior overall survival and disease-free survival after resection of thymic carcinoma. J Thorac Dis 2017; 9:4550-4560. [PMID: 29268525 DOI: 10.21037/jtd.2017.10.86] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background The prognostic significance of serum lactate dehydrogenase (LDH) level in thymic carcinoma (TC) remains unclear. Therefore, we evaluated the role of pretreatment serum LDH level in the prognosis for TC in this study. Methods Sixty consecutive surgical patients were analyzed in this study with pathologic confirmed TC in Sun Yat-sen University Cancer Center from June 1996 to June 2014. Results The cut-off value of LDH was 210.50 IU/L. In both univariate analysis and multivariable analysis, only pretreatment serum LDH level (P=0.027) and pathological Masaoka stage (P=0.041) were associated with overall survival (OS). In univariate analysis, pretreatment serum LDH level, tumor size, postoperative radiotherapy (PORT) and pathological Masaoka stage were associated with disease-free survival (DFS) (all P<0.050). Multivariable analysis showed that LDH level (P=0.001), PORT (P=0.001) and pathological Masaoka stage (P=0.038) were independently prognostic factors of DFS. This study also revealed that male patients and larger tumor size had a significantly higher rate of elevated pretreatment serum LDH level than in the other groups. Conclusions In conclusion, pretreatment serum LDH level was an independent prognosis factor of OS and DFS for patients with TC.
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Affiliation(s)
- Qianwen Liu
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Guangdong Esophageal Cancer Institute, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xiayu Fu
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Guangdong Esophageal Cancer Institute, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xiaodong Su
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Guangdong Esophageal Cancer Institute, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xin Wang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Guangdong Esophageal Cancer Institute, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yijun Zhang
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Guangdong Esophageal Cancer Institute, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Hong Yang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Guangdong Esophageal Cancer Institute, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yi Hu
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Guangdong Esophageal Cancer Institute, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Jing Wen
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Guangdong Esophageal Cancer Institute, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Jianhua Fu
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Guangdong Esophageal Cancer Institute, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.,Collaborative Innovation Center of Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
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22
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Abstract
Lactate dehydrogenase (LDH) among many biochemical parameters represents a very valuable enzyme in patients with cancer with possibility for easy routine measurement in many clinical laboratories. Previous studies where mostly based on investigated LDH in serum of patients with cancer with aims to estimate their clinical significance. The new directions in investigation of LDH where based on the principle that tumor cells release intracellular enzymes trough damaged cell membrane, that is mostly consequence in intracellular mitochondrial machinery alteration, and apoptosis deregulation. This consideration can be used not only in-vitro assays, but also in respect to clinical characteristics of tumor patients. Based on new techniques of molecular biology it is shown that intracellular characteristics of LDH enzyme are very sensitive indicators of the cellular metabolic state, aerobic or anaerobic direction of glycolysis, activation status and malignant transformation. Using different molecular analyses it is very useful to analyzed intracellular LDH activity in different cell line and tumor tissues obtained from patients, not only to understanding complexity in cancer biochemistry but also in early clinical diagnosis. Based on understandings of the LDH altered metabolism, new therapy option is created with aims to blocking certain metabolic pathways and stop tumors growth.
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Affiliation(s)
- Vladimir Jurisic
- Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia.
| | | | - Gordana Konjevic
- Institute of Oncology and Radiology of Serbia, Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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23
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Chang GA, Tadepalli JS, Shao Y, Zhang Y, Weiss S, Robinson E, Spittle C, Furtado M, Shelton DN, Karlin-Neumann G, Pavlick A, Osman I, Polsky D. Sensitivity of plasma BRAFmutant and NRASmutant cell-free DNA assays to detect metastatic melanoma in patients with low RECIST scores and non-RECIST disease progression. Mol Oncol 2015; 10:157-65. [PMID: 26440707 DOI: 10.1016/j.molonc.2015.09.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 09/03/2015] [Indexed: 01/06/2023] Open
Abstract
Melanoma lacks a clinically useful blood-based biomarker of disease activity to help guide patient management. To determine whether measurements of circulating, cell-free, tumor-associated BRAF(mutant) and NRAS(mutant) DNA (ctDNA) have a higher sensitivity than LDH to detect metastatic disease prior to treatment initiation and upon disease progression we studied patients with unresectable stage IIIC/IV metastatic melanoma receiving treatment with BRAF inhibitor therapy or immune checkpoint blockade and at least 3 plasma samples obtained during their treatment course. Levels of BRAF(mutant) and NRAS(mutant) ctDNA were determined using droplet digital PCR (ddPCR) assays. Among patients with samples available prior to treatment initiation ctDNA and LDH levels were elevated in 12/15 (80%) and 6/20 (30%) (p = 0.006) patients respectively. In patients with RECIST scores <5 cm prior to treatment initiation, ctDNA levels were elevated in 5/7 (71%) patients compared to LDH which was elevated in 1/13 (8%) patients (p = 0.007). Among all disease progression events the modified bootstrapped sensitivities for ctDNA and LDH were 82% and 40% respectively, with a median difference in sensitivity of 42% (95% confidence interval, 27%-58%; P < 0.001). In addition, ctDNA levels were elevated in 13/16 (81%) instances of non-RECIST disease progression, including 10/12 (83%) instances of new brain metastases. In comparison LDH was elevated 8/16 (50%) instances of non-RECIST disease progression, including 6/12 (50%) instances of new brain metastases. Overall, ctDNA had a higher sensitivity than LDH to detect disease progression, including non-RECIST progression events. ctDNA has the potential to be a useful biomarker for monitoring melanoma disease activity.
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Affiliation(s)
- Gregory A Chang
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA; Laura and Isaac Perlmutter Cancer Center, NYU Langone Medical Center, USA
| | - Jyothirmayee S Tadepalli
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA; Laura and Isaac Perlmutter Cancer Center, NYU Langone Medical Center, USA
| | - Yongzhao Shao
- Laura and Isaac Perlmutter Cancer Center, NYU Langone Medical Center, USA; Department of Population Health, New York University School of Medicine, New York, NY, USA
| | - Yilong Zhang
- Laura and Isaac Perlmutter Cancer Center, NYU Langone Medical Center, USA; Department of Population Health, New York University School of Medicine, New York, NY, USA
| | - Sarah Weiss
- Department of Medicine, Division of Oncology, New York University School of Medicine, New York, NY, USA; Laura and Isaac Perlmutter Cancer Center, NYU Langone Medical Center, USA
| | - Eric Robinson
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA; Laura and Isaac Perlmutter Cancer Center, NYU Langone Medical Center, USA
| | | | - Manohar Furtado
- Digital Biology Center, Bio-Rad Laboratories, Pleasanton, CA, USA
| | - Dawne N Shelton
- Digital Biology Center, Bio-Rad Laboratories, Pleasanton, CA, USA
| | | | - Anna Pavlick
- Department of Medicine, Division of Oncology, New York University School of Medicine, New York, NY, USA; Laura and Isaac Perlmutter Cancer Center, NYU Langone Medical Center, USA
| | - Iman Osman
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA; Laura and Isaac Perlmutter Cancer Center, NYU Langone Medical Center, USA
| | - David Polsky
- The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA; Laura and Isaac Perlmutter Cancer Center, NYU Langone Medical Center, USA.
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Yadav C, Ahmad A, D'Souza B, Agarwal A, Nandini M, Ashok Prabhu K, D'Souza V. Serum Lactate Dehydrogenase in Non-Hodgkin's Lymphoma: A Prognostic Indicator. Indian J Clin Biochem 2016; 31:240-2. [PMID: 27069334 DOI: 10.1007/s12291-015-0511-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Accepted: 05/30/2015] [Indexed: 10/23/2022]
Abstract
Non-Hodgkin's lymphoma constitutes a group of disorders originating from the malignant transformation of lymphocytes and involving either the lymph nodes or extranodal sites. NHL commonly presents in the sixth to seventh decade of life with a male preponderance (50-75 %). Recent studies have shown importance of serum LDH in prognosis of NHL. Authors report a case of a 63 year old male presenting with complaints of fever and backache for past 4 months. General and systemic examination revealed bilateral axillary lymphadenopathy and splenomegaly respectively. Serum LDH level was highly elevated (3441 U/l). Excisional axillary and bone marrow biopsy were done before oncology referral. Complete workup revealed diffuse Non-Hodgkin's lymphoma with bone marrow infiltration. Patient died because of acute renal failure due to NHL and DM 2 (Type 2 diabetes mellitus).
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Han JW, Gurunathan S, Jeong JK, Choi YJ, Kwon DN, Park JK, Kim JH. Oxidative stress mediated cytotoxicity of biologically synthesized silver nanoparticles in human lung epithelial adenocarcinoma cell line. Nanoscale Res Lett 2014; 9:459. [PMID: 25242904 PMCID: PMC4167841 DOI: 10.1186/1556-276x-9-459] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 08/18/2014] [Indexed: 05/14/2023]
Abstract
The goal of the present study was to investigate the toxicity of biologically prepared small size of silver nanoparticles in human lung epithelial adenocarcinoma cells A549. Herein, we describe a facile method for the synthesis of silver nanoparticles by treating the supernatant from a culture of Escherichia coli with silver nitrate. The formation of silver nanoparticles was characterized using various analytical techniques. The results from UV-visible (UV-vis) spectroscopy and X-ray diffraction analysis show a characteristic strong resonance centered at 420 nm and a single crystalline nature, respectively. Fourier transform infrared spectroscopy confirmed the possible bio-molecules responsible for the reduction of silver from silver nitrate into nanoparticles. The particle size analyzer and transmission electron microscopy results suggest that silver nanoparticles are spherical in shape with an average diameter of 15 nm. The results derived from in vitro studies showed a concentration-dependent decrease in cell viability when A549 cells were exposed to silver nanoparticles. This decrease in cell viability corresponded to increased leakage of lactate dehydrogenase (LDH), increased intracellular reactive oxygen species generation (ROS), and decreased mitochondrial transmembrane potential (MTP). Furthermore, uptake and intracellular localization of silver nanoparticles were observed and were accompanied by accumulation of autophagosomes and autolysosomes in A549 cells. The results indicate that silver nanoparticles play a significant role in apoptosis. Interestingly, biologically synthesized silver nanoparticles showed more potent cytotoxicity at the concentrations tested compared to that shown by chemically synthesized silver nanoparticles. Therefore, our results demonstrated that human lung epithelial A549 cells could provide a valuable model to assess the cytotoxicity of silver nanoparticles.
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Affiliation(s)
- Jae Woong Han
- Department of Animal Biotechnology, Konkuk University, 1 Hwayang-Dong, Gwangin-gu Seoul 143-701, Korea
| | - Sangiliyandi Gurunathan
- Department of Animal Biotechnology, Konkuk University, 1 Hwayang-Dong, Gwangin-gu Seoul 143-701, Korea
- GS Institute of Bio and Nanotechnology, Coimbatore, Tamilnadu 641024, India
| | - Jae-Kyo Jeong
- Department of Animal Biotechnology, Konkuk University, 1 Hwayang-Dong, Gwangin-gu Seoul 143-701, Korea
| | - Yun-Jung Choi
- Department of Animal Biotechnology, Konkuk University, 1 Hwayang-Dong, Gwangin-gu Seoul 143-701, Korea
| | - Deug-Nam Kwon
- Department of Animal Biotechnology, Konkuk University, 1 Hwayang-Dong, Gwangin-gu Seoul 143-701, Korea
| | - Jin-Ki Park
- Animal Biotechnology Division, National Institute of Animal Science, Suwon 441-350, Korea
| | - Jin-Hoi Kim
- Department of Animal Biotechnology, Konkuk University, 1 Hwayang-Dong, Gwangin-gu Seoul 143-701, Korea
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