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Tang Y, Hong C, Cai Y, Zhu J, Hu X, Tian Y, Song X, Song Z, Jiang R, Kang F. HIF-1α Mediates Osteoclast-Induced Mandibular Condyle Growth via AMPK Signaling. J Dent Res 2020; 99:1377-1386. [PMID: 32600097 DOI: 10.1177/0022034520935788] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
During the mandibular condylar growth, the absorption of calcified cartilage matrix induced by osteoclasts is crucial for the continuous endochondral osteogenesis. Meanwhile, recent studies showed that subchondral bone resided within the low-oxygen microenvironment, and our previous study revealed that hypoxia-inducible transcription factor 1α (HIF-1α) promoted osteoclastogenesis under hypoxia. However, whether HIF-1α regulates the function of osteoclasts in the mandibular condyle cartilage remains elusive. Our study indicated that severe deformity of the mandibular condyle was displayed in 10-wk-old osteoclast-specific HIF-1α conditional knockout (CKO) mice, accompanied by shortened length of condylar process and disorganized fibrocartilage. In 1-, 2-, and 4-wk-old CKO mice, the size of the hypertrophic layer and chondrocytic layer was significantly thickened. In the chondrocytic layer, chondrocytes were atrophied, showing a form of apoptosis in 4-wk-old CKO mice. Furthermore, an increase in the thickness of the fibrous and proliferating layer was observed in 10-wk-old CKO mice, as well as a significant decrease in that of the chondrocytic and hypertrophic chondrocyte layers. Interestingly, the articular surface of the condylar process abnormally presented a horizontal concave shape, and a disk-like acellular connective tissue appeared. In addition, genetic ablation of HIF-1α blunted cartilage matrix loss by subchondral osteoclast deficiency, resulting in a high subchondral bone mass phenotype, accompanied with a decreased number of blood vessels, alkaline phosphatase staining, and vascular endothelial growth factor (VEGF) expression. Mechanistically, the number of osteoclasts in the center of the condyle in CKO mice was significantly reduced by attenuated expression of adenosine 5′-monophosphate-activated protein kinase (AMPK) signaling. These findings reveal a novel influence of HIF-1α function in osteoclasts on maintenance of osteoclast-induced resorption of calcified cartilage matrix via AMPK signaling, as well as subchondral bone formation through VEGF-dependent angiogenesis in bone marrow.
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Dong L, Yang L, Li Y, Yang J, An X, Yang L, Zhou N, Zhang Y, Du H, Lan J, Song Z, Miao X, Zhu J, Tao J. Efficacy of hydrogel patches in preventing facial skin damage caused by mask compression in fighting against coronavirus disease 2019: a short-term, self-controlled study. J Eur Acad Dermatol Venereol 2020; 34:e441-e443. [PMID: 32421878 PMCID: PMC7276886 DOI: 10.1111/jdv.16638] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Song Z, Li B, Zhang Z. AB0834 CLINICAL CHARACTERISTICS OF PSORIATIC ARTHRITIS IN CHINESE PATIENTS: A CROSS‑SECTIONAL OBSERVATIONAL STUDY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.5921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:The clnical features of psoriatic arthritis(PsA)greatly varied in reports fomr different countries.There was no exact data in China.Objectives:To disclose the characteristics of PsA in China, we initiated an investigation it in our cohort of PsA patients.Methods:A cross-sectional observational study was conducted in our PsA cohort of Peking University First Hospital. All the clinical and imaging data at the patient’s first visit were collected, including the age, gender, disease course, skin lesion, arthritis, dactylitis, enthesis, laboratory tests, concomitant diseases and so on.Results:Two hundred and seventy-nine patients with PsA were enrolled in this study. Their mean age was 41 year-old with 132 (47.3%) female. Median disease duration was 3 years. Among these patients, 196(73.4%)patients had the skin lesion first, 47 (17.6%)patients had the arthritis first, and the other 24(9.0%) patients had the psoriasis and the arthritis at the same time. Arthritis was the most common manifestation. Polyarthritis was the most common arthritic manifestation with proximal interphalangeal (PIP) joint as the most frequently involved joint. Dactylitis was observed in 89 (31.9%) patients, mostly at the second, third and fourth toe. Enthesis was found in 18 (6.5%) patients by physical examination, however, in 158 (56.5%) patients with the aid of ultrasound and MRI.Conclusion:Polyarthritis was the most common arthritis type in Chinese PsA patients, and PIP joint was the most involved joint, and the second, the middle and the fourth toe were the most frequently digits. The imaging techniques, especially ultrasound dramatically increased the identification of enthesis.References:[1]Ritchlin CT, Colbert RA, Gladman DD. Psoriatic arthritis. N Engl J Med 2017;376: 957–70.[2]Qing Yu Zeng, Ren Chen, John Darmawan et al. Rheumatic Diseases in China. Arthritis Research & Therapy Vol 10 No 1.Disclosure of Interests:None declared
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Song Z, Lu Y, Liu X, Wei C, Oladipo A, Fan B. Evaluation of Pantoea eucalypti FBS135 for pine (Pinus massoniana) growth promotion and its genome analysis. J Appl Microbiol 2020; 129:958-970. [PMID: 32329126 DOI: 10.1111/jam.14673] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 04/16/2020] [Accepted: 04/18/2020] [Indexed: 12/15/2022]
Abstract
AIMS Pinus massoniana is one of the most widely distributed forest plants in China. In this study, we isolated a bacterial endophyte (designated FBS135) from apical buds and needles of P. massoniana. Investigations were performed to understand the effects of the strain on pine growth, its genomic features and the functions of the plasmids it carries. METHODS AND RESULTS Based on its morphological features and 16S rRNA sequence, strain FBS135 was primarily identified as Pantoea eucalypti. We found that FBS135 not only promoted the growth of P. massoniana seedlings, but also significantly increased the survival rate of pine seedlings. The whole genome of FBS135 was sequenced, which revealed that the bacterium carries one chromosome and four plasmids. Its chromosome is 4 023 751 bp in size and contains dozens of genes involved in plant symbiosis. Curing one of the four plasmids, pPant1, resulted in a decrease in the size of the FBS135 colonies and the loss of the ability to synthesize yellow pigment, indicating that this plasmid may be very important for FBS135. CONCLUSIONS Pantoea eucalypti FBS135 has a genomic basis to be implicated in plant-associated lifestyle and was established to have the capability to promote pine growth. SIGNIFICANCE AND IMPACT OF THE STUDY To the best of our knowledge, this is the first report that such a bacterial species, P. eucalypti, was isolated from pine trees and evidenced to have pine beneficial activities. Our results elucidate the ecological effects of endophytes on forest plants as well as endophyte-plant interaction mechanisms.
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Li C, Jin L, Song Z. Coalescing Majorana edge modes in non-Hermitian [Formula: see text]-symmetric Kitaev chain. Sci Rep 2020; 10:6807. [PMID: 32321953 PMCID: PMC7176666 DOI: 10.1038/s41598-020-63369-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 03/24/2020] [Indexed: 11/23/2022] Open
Abstract
A single unit cell contains all the information about the bulk system, including the topological feature. The topological invariant can be extracted from a finite system, which consists of several unit cells under certain environment, such as a non-Hermitian external field. We present an exact solvable non-Hermitian finite-size Kitaev chain with [Formula: see text]-symmetric chemical potentials at the symmetric point. The straightforward calculation shows that there are two kinds of Majorana edge modes in this model divided by [Formula: see text] symmetry-broken and unbroken. The one appeared in the [Formula: see text] symmetry-unbroken region can be seen as the finite-size projection of the conventional degenerate zero modes in a Hermitian infinite system with the open boundary condition. It indicates a possible variant of the bulk-edge correspondence: The number of Majorana edge modes in a finite non-Hermitian system can be the topological invariant to identify the topological phase of the corresponding bulk Hermitian system.
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Tao J, Song Z, Yang L, Huang C, Feng A, Man X. Emergency management for preventing and controlling nosocomial infection of the 2019 novel coronavirus: implications for the dermatology department. Br J Dermatol 2020; 182:1477-1478. [PMID: 32141058 PMCID: PMC9619451 DOI: 10.1111/bjd.19011] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Plain language summary available online
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Liu Z, Vaswani C, Yang X, Zhao X, Yao Y, Song Z, Cheng D, Shi Y, Luo L, Mudiyanselage DH, Huang C, Park JM, Kim RHJ, Zhao J, Yan Y, Ho KM, Wang J. Ultrafast Control of Excitonic Rashba Fine Structure by Phonon Coherence in the Metal Halide Perovskite CH_{3}NH_{3}PbI_{3}. PHYSICAL REVIEW LETTERS 2020; 124:157401. [PMID: 32357060 DOI: 10.1103/physrevlett.124.157401] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 02/17/2020] [Accepted: 03/13/2020] [Indexed: 06/11/2023]
Abstract
We discover hidden Rashba fine structure in CH_{3}NH_{3}PbI_{3} and demonstrate its quantum control by vibrational coherence through symmetry-selective vibronic (electron-phonon) coupling. Above a critical threshold of a single-cycle terahertz pump field, a Raman phonon mode distinctly modulates the middle excitonic states with persistent coherence for more than ten times longer than the ones on two sides that predominately couple to infrared phonons. These vibronic quantum beats, together with first-principles modeling of phonon periodically modulated Rashba parameters, identify a threefold excitonic fine structure splitting, i.e., optically forbidden, degenerate dark states in between two bright ones with a narrow, ∼3 nm splitting. Harnessing of vibronic quantum coherence and symmetry inspires light-perovskite quantum control and sub-THz-cycle "Rashba engineering" of spin-split bands for ultimate multifunction device.
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Liu Y, Jiang Z, Chen H, Jing H, Cao X, Coia JE, Song Z. Description of demographic and clinical characteristics of extrapulmonary tuberculosis in Shandong, China. Hippokratia 2020; 24:27-32. [PMID: 33364736 PMCID: PMC7733363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
BACKGROUND According to the clinical manifestation, tuberculosis (TB) is divided into pulmonary tuberculosis (PTB) and extrapulmonary tuberculosis (EPTB). The incidence rate of EPTB has increased in many countries. The demographic and clinical characteristics of EPTB in China remain still unclear. MATERIALS AND METHODS We retrospectively analyzed the medical records of 5,624 hospitalized patients with positive M. tuberculosis culture between January 2008 and June 2013 in Shandong province. We investigated the epidemiological, demographic, and clinical characteristics of patients with EPTB. RESULTS Among 5,624 hospitalized TB patients with positive M. tuberculosis culture, 4,277 (76.05 %) had PTB, 618 (10.99 %) had EPTB, and 729 (12.96 %) had both PTB and EPTB. The proportion of EPTB increased significantly from 6.97 % in 2008 to 19.98 % in 2012 (p <0.001). The most frequent sites or foci of EPTB were pleura (63.27 %), followed by bone/joint (13.75 %), and lymph nodes (8.9 %). The mean duration of treatment for pleural TB was eight months and for EPTB in the other foci was more than 15 months. CONCLUSION The proportion of EPTB in Shandong province has significantly increased. Clinicians need to be aware of the trend and remain vigilant against EPTB. EPTB requires prolonged treatment, and clinical supervision should be strengthened to prevent drug resistance. HIPPOKRATIA 2020, 24(1): 27-32.
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Barbier P, Annoh OA, Liu G, Scorsin M, Moriggia S, Song Z, Francescato A, Piacentini A, Taylor E, Desa K, Lemma M. P1754 Regional left ventricular longitudinal myocardial dysfunction in mitral valve prolapse could be primary. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.1113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Regional left ventricular dysfunction in patients with mitral valve prolapse (MVP) and normal ejection fraction has been described by different Authors, and recent data point to a dysfunction (prevalently longitudinal strain) of the myocardium of the LV base secondary to dilatation of the mitral annulus.
Purpose
To investigate degree and extent of regional LV dysfunction and its mechanisms in patients with MVP, severe regurgitation and normal global systolic function, compared to patients with equivalent degree of regurgitation but functional etiology (FMR).
Methods
Speckle-tracking echocardiography was performed in 30 controls (N), and in severe primary (MVP, n= 50) or functional (FMR, n= 20) mitral regurgitation, to measure global, regional and segmental longitudinal peak systolic strain (LPSS, %), and time delay of peak maximum strain (TTPd, ms, calculated as time to peak maximum strain - time of aortic valve closure). Maximum and minimum mitral annulus diameters and area were measured with 3D echo. We also evaluated as recommended: LV end-diastolic volume index (EDVi, ml/m2), ejection fraction (EF, %), and left atrial end-systolic volume index (LAESVi, ml/m2) with 2D echo; LV stroke volume index, and non-invasive pulmonary systolic (PSP, mmHg) and diastolic pressures (PDP), mmHg) with Doppler echo.
Results
Age, heart rate, BSA and systolic blood pressure were similar between groups. Atrial fibrillation was present in 34% of MVP and 71% of FMR patients. LV EF was normal in MVP and reduced in FMR (43 ± 14 % vs N, p<.001). LV EDVi (MVP: 77 ± 20 ml/m2; FMR: 107 ± 35, both p<.001 vs N) and LAESVi (MVP: 91 ± 26 ml/m2; FMR: 80 ± 30, both p<.001 vs N) were similarly increased (volume overload) in MVP and FMR, as were PSP (MVP: 42 ± 23 ml/m2; FMR: 52 ± 25, both p<.001 vs N) and PDP (MVP: 16 ± 6 ml/m2; MVP: 15 ± 5, both p<.001 vs N). In FMR, LPSS was reduced globally (-12.8 ± 3.3, p<.001 vs N and MVP) and similarly at LV base, papillary and apical levels. In contrast, in MVP global (-19.4 ± 3.7%) and apical (-23.4 ± 4.5%) LPSS were normal, whereas LV base (-12.3 ± 5.8%, p=.003 vs N) and papillary (-17.1 ± 4%, p=.024 vs N) LPSS were reduced; further, LPSS reduction was localized to the anterior (-16 ± 4, p=.028 vs N), lateral (-17 ± 5, p=.006 vs N) and posterior (-16 ± 6, p=.007 vs N) segments, and was associated with an increased TTPd in the same segments in MVP but not in FMR patients. At multivariate analysis, degree and localisation of regional myocardial dysfunction in patients with MVP was not related to the prolapsing scallop, dimension of the mitral annulus, degree of volume overload or pulmonary pressures, or stroke volume index.
Conclusions
In patients with MVP, severe regurgitation and normal EF, there is a specific dysfunction pattern of regional LV longitudinal function which appears to be primary and not dependent on the degree of preload increase, mitral annulus dilatation, or localization of the prolapsing scallop.
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Cheng D, Liu Z, Luo L, Vaswani C, Park JM, Yao Y, Song Z, Huang C, Mudiyanselage DH, Kim RHJ, Yan Y, Ho KM, Wang J. Helicity-dependent terahertz photocurrent and phonon dynamics in hybrid metal halide perovskites. J Chem Phys 2019; 151:244706. [DOI: 10.1063/1.5127767] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhao Y, Liu Y, Wang Z, Wang L, Li L, Hou F, Song Z, Weng Z. Study of SU-8 photoresist cross-linking process by atomic force acoustic microscopy. J Microsc 2019; 276:136-144. [PMID: 31769508 DOI: 10.1111/jmi.12848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 11/18/2019] [Accepted: 11/21/2019] [Indexed: 11/30/2022]
Abstract
In this paper, a method is presented to detect the different phases of epoxy cross-linking process and the subsurface structures of SU-8 thin films by atomic force acoustic microscopy (AFAM). The AFAM imaging of SU-8 thin films was investigated under different exposure and bake conditions. Optimized conditions were obtained for the cross-linking of SU-8 thin film at the exposure does of eight laser pulses with the laser fluence 10 mJ cm-2 per pulse and the post exposure bake (PEB) time at 90 s. The subsurface structures of undeveloped SU-8 thin films were visible in the AFAM images. This method provides an effective and low-cost way for the determination of different phases of epoxy cross-linking process in nanostructured compounds, for the non-destructive testing of subsurface defects, and for the evaluation of the quality of patterned structures.
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Song Z, Zhang Q, Zhu J, Yin G, Lin L, Liang C. Identification of urinary hsa_circ _0137439 as potential biomarker and tumor regulator of bladder cancer. Neoplasma 2019; 67:137-146. [PMID: 31777254 DOI: 10.4149/neo_2018_181214n970] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 08/14/2019] [Indexed: 11/08/2022]
Abstract
Cell-free circular RNAs (circRNAs) stably and abundantly exist in body fluids. In this study we aimed to investigate the potential of urinary cell-free circRNAs as a novel class of noninvasive disease biomarkers for diagnosis of bladder cancer. Differentially expressed circRNAs from 10 normal and 10 bladder cancer urine samples were firstly detected by microarray. Hsa_circ_0137439 was then screened and validated in 30 normal and 116 bladder cancer samples. A receiver operating characteristic (ROC) curve was used to evaluate the diagnostic value of hsa_circ_0137439. The Kaplan-Meier method was used to evaluate the significance of hsa_circ_0137439 in the prognosis of bladder cancer. We found that hsa_circ_0137439 was significantly upregulated in bladder cancer samples. Moreover, increased expression of hsa_circ_0137439 was correlated with higher tumor stage, higher tumor grade, higher lymph node status, and history of muscle-invasive bladder cancer (MIBC). Also, urinary cell-free hsa_circ_0137439 could not only differentiate bladder cancer from normal controls but also distinguish MIBC from non-muscle-invasive bladder cancer (NMIBC). Additionally, hsa_circ_0137439 in urine supernatant could serve as an independent prognostic predicator of recurrence-free survival and overall survival for patients with bladder cancer. Cell assays showed that hsa_circ_0137439 knockdown contributed to the inhibition of cell proliferation and migration via hsa_circ_0137439/miR-142-5p/ MTDH axis. In conclusion, urinary cell-free hsa_circ_0137439 could be a promising biomarker for tumor diagnosis and prognostic assessment of bladder cancer patients.
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Liu Y, Zheng S, Song Z. P1.01 Clinical Application of Plasma MIR-34B-3P and MIR-302A-5P in the Diagnosis of Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.09.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Li Q, Xu J, Tang Y, Wen X, Guo P, Song Z, Wang F, Zhang P, Shang X, Wang C. Evaluation of the Sysmex UF-5000 automated urinalysis analyzer. J BIOL REG HOMEOS AG 2019; 33:1863-1869. [PMID: 31916424 DOI: 10.23812/18-159-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
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Song Z, Hu L, Han Q, Wang X, Huo Y, Jiao T, Ren G, Wang K, Yin B, Jia Y, Song J, Cheng H, Wang H, Lou F, Cao S, Zang A. P2.01-45 Clinico-Molecular Characteristics and Prognostic Outcomes of TP53 Mutated Patients with Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Song Z, Wang X, Li J, Chang L, Guan Y, Xia X, Yi X, Chen R. P1.12-10 The Genomic Profiles of Small Cell Lung Cancer in East Asian. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Yang XM, Zhang G, Song Z. Phase transition in phase transition lines of quantum XY model. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2019; 31:245401. [PMID: 30861505 DOI: 10.1088/1361-648x/ab0f04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Phase transitions in quantum systems, including symmetry breaking and topological types, always associate with gap closing and opening. We analyze the topological features of the quantum phase boundary of the XY model in a transverse magnetic field. Based on the results from graphs in the auxiliary space, we find that gapless ground states at boundary have different topological characters. On the other hand, in the framework of Majorana representation, the Majorana lattice is shown to be two coupled SSH chains. The analysis of the quantum fidelity for the Majorana eigen vector, which is shown to be identical to the square of that for ground states of the XY model, indicates the signature of the gapless phase transition (GPT). Furthermore analytical and numerical results for second-order derivative of groundstate energy density show that such a GPT obeys scaling behavior.
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Song Z, Chen X, Zhao Q, Lin Z, Yang S, Chen T, Chen J, Yang Y. 889 Trpv3 gain-of-function mutation impairs differentiation of hair follicle inner root sheath. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wang JY, Ma J, Lin YN, Wang J, Shen H, Gui FM, Han C, Li QH, Song Z, Wang XJ. [Mutational analysis of RNA splicing machinery genes SF3B1, U2AF1 and SRSF2 in 118 patients with myelodysplastic syndromes and related diseases]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2018; 38:192-197. [PMID: 28395441 PMCID: PMC7348387 DOI: 10.3760/cma.j.issn.0253-2727.2017.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
目的 探讨RNA剪接体复合物编码基因SF3B1、U2AF1和SRSF2突变在MDS及相关疾病中的突变率、突变特点及临床意义。 方法 以118例MDS及相关疾病患者为研究对象,采用PCR扩增产物直接测序法分别检测SF3B1(K700E)、U2AF1(S34、Q157P)和SRSF2(P95)突变情况。 结果 118例MDS患者中,男76例,女42例,中位年龄53.5(13~84)岁。对全部患者均进行SF3B1(K700E)基因突变分析,SF3B1(K700E)的突变率为19.49%(118例中23例)。在突变的22例MDS患者中,14例环形铁粒幼红细胞(RS)比例≥15%,其中难治性贫血伴环状铁粒幼红细胞(RARS)7例、难治性血细胞减少伴有多系发育异常(RCMD)6例、难治性贫血(RA)1例。与未突变组相比,突变组患者的年龄偏大[58(32~78)岁对51(13~84)岁,z=−1.981,P=0.048]、PLT偏高[121(22~888)×109/L对59(6~1 561)× 109/L,z=−3.305,P=0.001]、骨髓原始细胞比例偏低[0.007(0~0.122)对0.017(0~0.268),z=−2.885,P=0.004]、RS比例偏高[0(0~64%)对0(0~58%),z=−4.664,P<0.001],HGB偏低[63(40~95)g/L对77(34~144)g/L,z=−3.192,P=0.001]。对105例患者进行U2AF1(S34、Q157P)基因突变分析,突变率为21.90%(105例中23例)。突变组患者各临床特征与未突变组相比差异均无统计学意义。107例患者有SRSF2(P95)突变结果,8例突变,突变率为7.48%,突变组患者初诊时年龄偏高,中位年龄63(50~84)岁,其中难治性贫血伴有原始细胞增多-1(RAEB-1)4例,突变率为14.29%(28例中4例);MDS转化的急性髓系白血病3例。1例患者同时出现SF3B1(K700E)和SRSF2(P95H)突变,2例患者同时出现SF3B1(K700E)和U2AF1(S34Y)突变。 结论 SF3B1、U2AF1和SRSF2剪接体复合物蛋白编码基因中,仅SF3B1基因突变与环状铁粒幼红细胞增多性贫血密切相关,是该亚型的主要致病基因。
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Chen W, Song Z, Yang CC, Hao F. Symmetrical acral keratoderma revisited: proposal for a new term, 'pigmented carpotarsal hyperkeratosis'. J Eur Acad Dermatol Venereol 2018; 33:277-280. [PMID: 30284750 DOI: 10.1111/jdv.15266] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 08/27/2018] [Indexed: 01/27/2023]
Abstract
First reported from Taiwan mistakenly as acral acanthosis nigricans in 1991, pigmented carpotarsal hyperkeratosis or hyperkeratosis nigricans carpi et tarsi displays a peculiar distribution of velvety brown-grey hyperpigmented plaques symmetrically on the flexural side of the wrists and ankles and on the dorsal sides of the hands and feet. A marked epidermal hyperkeratosis with typically mild acanthosis and papillomatosis is observed in histology. Whitish maceration upon perspiration or water exposure, with exacerbation in summer but remission in winter, is common. The association with obesity, endocrine disorders, atopic dermatitis, ichthyosis or malignancy is unknown. Familial occurrence and hereditary patterns are ill-defined. There is preliminary evidence indicating a pathogenic role of missense mutation in the transcription factor 4 gene. Treatment is empirical, with good outcome with topical retinoids and keratolytic agents. Recurrence is common, and long-term prognosis is unclear. To be distinguished are acral acanthosis nigricans, palmoplantar keratoderma of the Nagashima type, palmoplantar keratoderma of the Bothnian type and aquagenic palmoplantar keratoderma. Most reported cases are from Southern China and are predominantly observed in men between the ages of 20 and 40 years. The currently used term 'symmetrical acral keratoderma' is non-specific and misleading and may lead to global unawareness, underreporting or misdiagnosis of this phenomenon. Further genetic and molecular studies are required to clarify its pathogenesis and relation to palmoplantar keratoderma.
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Zhang Q, Xu C, Wang W, Zhuang W, Song Z, Zhu Y, Chen Y, Chen G, Fang M, Lv T, Song Y. Potential resistance mechanisms revealed primary resistance to crizotinib in ROS1+ non-small cell lung cancer using next generation sequencing: A multicenter study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy269.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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72
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Wang W, Xu C, Zhang Q, Zhuang W, Zhu Y, Song Z, Chen Y, Chen G, Fang M, Lv T, Song Y. P3.CR-09 MET-UBE2H fusion as a novel mechanism of acquired EGFR resistance in lung adenocarcinoma" with "MET fusion as a novel mechanism of acquired EGFR resistance in lung adenocarcinoma. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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73
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Xu C, Wang W, Song Z, Zhang Q, Zhuang W, Chen Y, Chen G, Fang M, Lv T, Song Y. P3.CR-11 ROS1 Fusion and MET Amplification Dual Drive Coexistence in Lung Adenocarcinoma and Response to Crizotinib: A Case Report. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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74
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Xu C, Wang W, Zhuang W, Song Z, Zhu Y, Chen G, Fang M, Lv T, Song Y. A multicenter study of mutational profiling of Chinese ALK+ non-small cell lung cancer patients with acquired resistance to crizotinib using next generation sequencing. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy292.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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75
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Wang J, Yu Y, Li G, Shen C, Li J, Chen S, Zhang X, Zhu M, Zheng J, Song Z, Wu J, Shao L, Meng Z, Wang X, Huang Y, Zhang J, Qiu C, Zhang W. Natural history of serum HBV-RNA in chronic HBV infection. J Viral Hepat 2018; 25:1038-1047. [PMID: 29633430 DOI: 10.1111/jvh.12908] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 02/12/2018] [Indexed: 12/11/2022]
Abstract
Virus-like particles encapsulating HBV-RNA represent a serum biomarker for assessing viral replication activity in clinical practice. However, baseline levels of serum HBV-RNA and their associations with viral replicative intermediates and liver disease in phases of chronic hepatitis B remain unknown. In this cross-sectional study, 102 patients were categorized into immune-tolerant (IT), HBeAg-positive immune active (HBeAg+IA), inactive carrier (IC) and HBeAg-negative immune active (HBeAg-IA) phases. HBV-RNA in serum samples and in 66 paired liver biopsies were quantified and correlated with serum ALT levels, histopathological scores and the levels of other viral replicative intermediates. Mean levels of serum HBV-RNA differed among phases, with the highest levels among IT (6.78 ± 0.83 log10 copies mL-1 ) patients, followed by HBeAg+IA (5.73 ± 1.16 log10 copies mL-1 ), HBeAg-IA (4.52 ± 1.25 log10 copies mL-1 ) and IC (2.96 ± 0.40 log10 copies mL-1 ) patients. Serum HBV-RNA levels correlated with HBV DNA in all phases, although correlations with other viral replicative intermediates weakened or disappeared when cases were stratified into phases. Distinct compositions of viral products were found among phases: the ratio of HBsAg to serum HBV-RNA was highest in IC patients, while the ratio of serum HBV-RNA to intrahepatic HBV-RNA and the ratio of intrahepatic HBV-DNA to intrahepatic HBV-RNA were significantly higher in IT patients. In conclusion, baseline levels of HBV-RNA and the composition of viral replicative intermediates differ significantly across the natural course of chronic HBV infection. These findings shed light on the nature of viral replication and pathogenesis of disease among different phases of chronic HBV infection.
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