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Lin HS, Pang WP, Yuan H, Kong YZ, Long FL, Zhang RZ, Yang L, Fang QL, Pan AP, Fan XH, Li MF. Molecular subtypes based on DNA sensors predict prognosis and tumor immunophenotype in hepatocellular carcinoma. Aging (Albany NY) 2023; 15:6798-6821. [PMID: 37451838 PMCID: PMC10415551 DOI: 10.18632/aging.204870] [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: 12/27/2022] [Accepted: 06/19/2023] [Indexed: 07/18/2023]
Abstract
DNA sensors play crucial roles in inflammation and have been indicated to be involved in antitumor or tumorigenesis, while it is still unclear whether DNA sensors have potential roles in the prognosis and immunotherapy of hepatocellular carcinoma (HCC). Herein, The Cancer Genome Atlas and Gene Expression Omnibus databases were used to analyze RNA sequencing data and clinical information. A total of 14 DNA sensors were collected and performed consensus clustering to determine their molecular mechanisms in HCC. Two distinct molecular subtypes (Clusters C1 and C2) were identified and were associated with different overall survival (OS). Immune subtype analysis revealed that C1 was mainly characterized by inflammation, while C2 was characterized by lymphocyte depletion. Immune scoring and immunomodulatory function analysis confirmed the different immune microenvironment of C1 and C2. Notably, significant differences in "Hot Tumor" Immunophenotype were observed between the two subtypes. Moreover, the prognostic model based on DNA sensors is capable of effectively predicting the OS of HCC patients. Besides, the chemotherapeutic drug analysis showed the different sensitivity of two subtypes. Taken together, our study shows that the proposed DNA sensors were a reliable signature to predict the prognosis and immunotherapy response with potential application in the clinical decision and treatment of HCC.
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Affiliation(s)
- Hong-Sheng Lin
- Department of Microbiology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, China
| | - Wen-Peng Pang
- Department of Microbiology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - Hao Yuan
- Department of Immunology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - Yin-Zhi Kong
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, China
| | - Fu-Li Long
- Department of Hepatology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, China
| | - Rong-Zhen Zhang
- Department of Hepatology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, China
| | - Li Yang
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, China
| | - Qiao-Ling Fang
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, China
| | - Ai-Ping Pan
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, China
| | - Xiao-Hui Fan
- Department of Microbiology, School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - Ming-Fen Li
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, China
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Peng WW, Tang ZY, Zhang FR, Li H, Kong YZ, Iannetti GD, Hu L. Neurobiological mechanisms of TENS-induced analgesia. Neuroimage 2019; 195:396-408. [PMID: 30946953 PMCID: PMC6547049 DOI: 10.1016/j.neuroimage.2019.03.077] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 03/12/2019] [Accepted: 03/30/2019] [Indexed: 12/30/2022] Open
Abstract
Pain inhibition by additional somatosensory input is the rationale for the widespread use of Transcutaneous Electrical Nerve Stimulation (TENS) to relieve pain. Two main types of TENS produce analgesia in animal models: high-frequency (∼50-100 Hz) and low-intensity 'conventional' TENS, and low-frequency (∼2-4 Hz) and high-intensity 'acupuncture-like' TENS. However, TENS efficacy in human participants is debated, raising the question of whether the analgesic mechanisms identified in animal models are valid in humans. Here, we used a sham-controlled experimental design to clarify the efficacy and the neurobiological effects of 'conventional' and 'acupuncture-like' TENS in 80 human volunteers. To test the analgesic effect of TENS we recorded the perceptual and brain responses elicited by radiant heat laser pulses that activate selectively Aδ and C cutaneous nociceptors. To test whether TENS has a long-lasting effect on brain state we recorded spontaneous electrocortical oscillations. The analgesic effect of 'conventional' TENS was maximal when nociceptive stimuli were delivered homotopically, to the same hand that received the TENS. In contrast, 'acupuncture-like' TENS produced a spatially-diffuse analgesic effect, coupled with long-lasting changes both in the state of the primary sensorimotor cortex (S1/M1) and in the functional connectivity between S1/M1 and the medial prefrontal cortex, a core region in the descending pain inhibitory system. These results demonstrate that 'conventional' and 'acupuncture-like' TENS have different analgesic effects, which are mediated by different neurobiological mechanisms.
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Affiliation(s)
- W W Peng
- College of Psychology and Sociology, Shenzhen University, Shenzhen, China
| | - Z Y Tang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - F R Zhang
- Research Center of Brain Cognitive Neuroscience, Liaoning Normal University, Dalian, China
| | - H Li
- College of Psychology and Sociology, Shenzhen University, Shenzhen, China
| | - Y Z Kong
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - G D Iannetti
- Neuroscience and Behaviour Laboratory, Istituto Italiano di Tecnologia, Rome, Italy; Department of Neuroscience, Physiology and Pharmacology, University College London, London, UK
| | - L Hu
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China; Department of Neuroscience, Physiology and Pharmacology, University College London, London, UK; Department of Pain Management, The State Key Clinical Specialty in Pain Medicine, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
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Wang JG, Guo YZ, Kong YZ, Dai S, Zhao BY. High non-esterified fatty acid concentrations promote expression and secretion of fibroblast growth factor 21 in calf hepatocytes cultured in vitro. J Anim Physiol Anim Nutr (Berl) 2017; 102:e476-e481. [PMID: 28447390 DOI: 10.1111/jpn.12699] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 01/24/2017] [Indexed: 12/30/2022]
Abstract
Negative energy balance is considered as the pathological basis of energy metabolic disorders in periparturient dairy cows. Serum non-esterified fatty acids (NEFA) are one of the most important indicators of energy balance status. Fibroblast growth factor 21 (FGF21) has been identified as a hepatokine involved in regulation of metabolic adaptations, such as promoting hepatic lipid oxidation and ketogenesis, during energy deprivation. However, the direct effects of NEFA on FGF21 expression and secretion in bovine hepatocytes are not entirely clear. The objective of this study was to investigate the effects of different NEFA concentrations on FGF21 expression and secretion in calf hepatocytes cultured in vitro. NEFA were added to the culture solution at final concentrations of 0.6, 1.2, 1.8 and 2.4 mmol/L. After 24 hr of continuous culture, FGF21 mRNA and protein expression levels in the hepatocytes were determined by real-time PCR and Western blot respectively. FGF21 secretion in the supernatant was determined by enzyme-linked immunosorbent assay (ELISA). The results showed that expression and secretion of FGF21 at 0.6 mmol/L NEFA-treated hepatocytes was higher than that of the control group (p < .05). The FGF21 expression and secretion were similar at 1.2, 1.8 and 2.4 mmol/L NEFA-treated hepatocytes and significantly higher than those observed for controls (p < .01). These data suggest that high concentrations of NEFA significantly promote FGF21 expression and secretion in bovine hepatocytes. In particular, this promotion occurs in a dose-dependent manner and may be involved in the pathological processes of energy metabolism disorders of dairy cows in the peripartum period.
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Affiliation(s)
- J G Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Y Z Guo
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Y Z Kong
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - S Dai
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - B Y Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
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Rygg JR, Zylstra AB, Séguin FH, LePape S, Bachmann B, Craxton RS, Garcia EM, Kong YZ, Gatu-Johnson M, Khan SF, Lahmann BJ, McKenty PW, Petrasso RD, Rinderknecht HG, Rosenberg MJ, Sayre DB, Sio HW. Note: A monoenergetic proton backlighter for the National Ignition Facility. Rev Sci Instrum 2015; 86:116104. [PMID: 26628185 DOI: 10.1063/1.4935581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A monoenergetic, isotropic proton source suitable for proton radiography applications has been demonstrated at the National Ignition Facility (NIF). A deuterium and helium-3 gas-filled glass capsule was imploded with 39 kJ of laser energy from 24 of NIF's 192 beams. Spectral, spatial, and temporal measurements of the 15-MeV proton product of the (3)He(d,p)(4)He nuclear reaction reveal a bright (10(10) protons/sphere), monoenergetic (ΔE/E = 4%) spectrum with a compact size (80 μm) and isotropic emission (∼13% proton fluence variation and <0.4% mean energy variation). Simultaneous measurements of products produced by the D(d,p)T and D(d,n)(3)He reactions also show 2 × 10(10) isotropically distributed 3-MeV protons.
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Affiliation(s)
- J R Rygg
- Lawrence Livermore National Laboratory, Livermore, California 94551, USA
| | - A B Zylstra
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - F H Séguin
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S LePape
- Lawrence Livermore National Laboratory, Livermore, California 94551, USA
| | - B Bachmann
- Lawrence Livermore National Laboratory, Livermore, California 94551, USA
| | - R S Craxton
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - E M Garcia
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - Y Z Kong
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - M Gatu-Johnson
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S F Khan
- Lawrence Livermore National Laboratory, Livermore, California 94551, USA
| | - B J Lahmann
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - P W McKenty
- Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
| | - R D Petrasso
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - H G Rinderknecht
- Lawrence Livermore National Laboratory, Livermore, California 94551, USA
| | - M J Rosenberg
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - D B Sayre
- Lawrence Livermore National Laboratory, Livermore, California 94551, USA
| | - H W Sio
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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Wang XJ, Kong YZ, Wang YF, Pang BS, Ni JF. [Studies on the photosynthetic characteristics of wheat variants by introduction sorghum DNA]. Shi Yan Sheng Wu Xue Bao 2000; 33:195-8. [PMID: 12548984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
Spring wheat Longchun No. 13 and Ganmai No. 8 were introduced by sorghum DNA via pollen tube pathway, and two stable progenies (89,122 and 89,144 respectively) were obtained through selection for several years. The results of photosynthetic analysis showed that photosynthetic rate (P) and photosynthetic/transpiration rate (E/P) of 89,122 and 89,144 were mediated between their recipients and donor respectively, which demonstrated stronger photosynthetic efficiency than their receptors. However, the delta 13 C values in assimilates from 89,122, 89,144 and their maternal wheat cultivars G8 and L13 were approximately same, and they were significant different from sorghum. The chlorophyll content and the ratio of Chla/Chlb of them also showed that wheat cultivars and sorghum were different. It might demonstrated that the stronger photosynthetic efficiency of the progenies was due to their higher Calvin cycle metabolism efficiency rather than their carbon-fixation pathway difference. On the other hand, it also suggested that the distant genetic materials of the sorghum affected the photosynthetic characteristics of 89122 and 89144.
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Affiliation(s)
- X J Wang
- State Key Laboratory of Arid Agroecology, Lanzhou University, Lanzhou 730000
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