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Zhang L, Zhao H, Zhang Z, Yao W, Min X, Gu K, Yu G, Cheng C, Cui J, Miao L, Song X, Zhang L, Yuan X, Fang Y, Fu X, Hu C, Zhu X, Fan Y, Yu Q. LBA50 ACTIVE: Apatinib plus gefitinib versus placebo plus gefitinib as first-line treatment for advanced epidermal growth factor receptor-mutant (EGFRm) non-small-cell lung cancer (NSCLC): A multicentered, randomized, double-blind, placebo-controlled phase III trial (CTONG1706). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Li J, Lian ZG, Xu YH, Liu RY, Wei ZQ, Li T, Lv HT, Zhao YS, Liu YJ, Dong B, Fu X. Downregulation of nuclear protein-1 induces cell cycle arrest in G0/G1 phase in glioma cells in vivo and in vitro via P27. Neoplasma 2020; 67:843-850. [PMID: 32266819 DOI: 10.4149/neo_2020_190814n759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 11/06/2019] [Indexed: 11/08/2022]
Abstract
Nuclear protein-1 (NUPR1), also named as p8 or Com1, has been since found overexpressed in several human malignant tumor cells, such as glioma. NUPR1 also regulates cell cycle progression, however, the role of NUPR1 in regulating glioma cell cycle remains poorly understood. Knockdown efficiency of U87 and U251 cells infected with the lentiviral vector was detected by quantitative real-time PCR and western blot in vitro and in vivo. Flow cytometry and western blot were used to explore a mechanism by which NUPR1 modulates cell cycle in U87 and U251 cells. Immunohistochemistry was applied to detect expression levels of P27, CDK2, and cyclin E in human glioma tissues with NUPR1 positive expression and tumorigenesis in nude mice. We confirmed that the downregulation of NUPR1 arrested the cell cycle in the G0/G1 phase in U87 and U251 cells in vitro. Furthermore, the expression level of P27 was increased, and CDK2 and cyclin E were decreased upon silencing NUPR1 expression in vitro and in vivo. In conclusion, the knockdown of NUPR1 induces cell cycle arrest in the G0/G1 phase in glioma cells via P27.
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Bultink CC, O’Brien TE, Vollmer R, Muthusubramanian N, Beekman MW, Rol MA, Fu X, Tarasinski B, Ostroukh V, Varbanov B, Bruno A, DiCarlo L. Protecting quantum entanglement from leakage and qubit errors via repetitive parity measurements. SCIENCE ADVANCES 2020; 6:eaay3050. [PMID: 32219159 PMCID: PMC7083610 DOI: 10.1126/sciadv.aay3050] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 12/26/2019] [Indexed: 06/10/2023]
Abstract
Protecting quantum information from errors is essential for large-scale quantum computation. Quantum error correction (QEC) encodes information in entangled states of many qubits and performs parity measurements to identify errors without destroying the encoded information. However, traditional QEC cannot handle leakage from the qubit computational space. Leakage affects leading experimental platforms, based on trapped ions and superconducting circuits, which use effective qubits within many-level physical systems. We investigate how two-transmon entangled states evolve under repeated parity measurements and demonstrate the use of hidden Markov models to detect leakage using only the record of parity measurement outcomes required for QEC. We show the stabilization of Bell states over up to 26 parity measurements by mitigating leakage using postselection and correcting qubit errors using Pauli-frame transformations. Our leakage identification method is computationally efficient and thus compatible with real-time leakage tracking and correction in larger quantum processors.
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Fu X, Shi Q, Zudov MA, Gardner GC, Watson JD, Manfra MJ, Baldwin KW, Pfeiffer LN, West KW. Anomalous Nematic States in High Half-Filled Landau Levels. PHYSICAL REVIEW LETTERS 2020; 124:067601. [PMID: 32109097 DOI: 10.1103/physrevlett.124.067601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 01/22/2020] [Indexed: 06/10/2023]
Abstract
It is well established that the ground states of a two-dimensional electron gas with half-filled high (N≥2) Landau levels are compressible charge-ordered states, known as quantum Hall stripe (QHS) phases. The generic features of QHSs are a maximum (minimum) in a longitudinal resistance R_{xx} (R_{yy}) and a nonquantized Hall resistance R_{H}. Here, we report on emergent minima (maxima) in R_{xx} (R_{yy}) and plateaulike features in R_{H} in half-filled N≥3 Landau levels. Remarkably, these unexpected features develop at temperatures considerably lower than the onset temperature of QHSs, suggestive of a new ground state.
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Zhang B, Sun L, Fu X, Yu G, Liu H, Zhang F. Mutation analysis of the KRT17 gene in steatocystoma multiplex and a brief literature review. Clin Exp Dermatol 2020; 45:132-134. [PMID: 31237972 DOI: 10.1111/ced.14030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2019] [Indexed: 01/08/2023]
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Li C, Liu Q, Welborn M, McMillin K, Fu X. Potential Mechanisms for Marbling Content Differences in M. Longissimus Dorsi From Wagyu And Brahman Cattle. MEAT AND MUSCLE BIOLOGY 2019. [DOI: 10.22175/mmb.10829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
ObjectivesIntramuscular fat (marbling) affects consumer perceptions of meat quality. Recent studies indicated that intramuscular adipocytes are derived from fibroadipogenic progenitors (FAPs), a type of bipotent mesenchymal progenitor cells in extracellular matrix of muscle fiber. Platelet-derived growth factor receptor α (PDGFRa) is a marker in identifying FAPs. The amount of PDGFRa positive cells refers to the abundance of FAPs, a key factor determining the intramuscular adipogenic efficiency of the animal. In addition, it has been shown that both satellite cells and skeletal muscle fibers regulate the activity of FAPs. In this study, we aimed to identify some underlying mechanisms for the differences in intramuscular fat accumulation between Wagyu, a high marbling breed, and Brahman, a low marbling breed, through a comparison study.Materials and MethodsFive cattle of each breed approaching mature body composition (Wagyu born January to May 2017; Brahman two 2-yr-old and three 3-yr-old, born April 2017 and 2015) were selected for this study. Biopsy samples of M. Longissimus muscle (LM) were taken after local anesthesia between the 12th and 13th ribs. Fresh samples were frozen in isopentane chilled by liquid nitrogen immediately after trimming fat and connective tissue. Other samples were fixed for 4 h in ice-cold 4% paraformaldehyde, soaked overnight in 30% sucrose solution, and then processed in Optimal Cutting Temperature embedding medium. Frozen samples were stored at –80°C before cryosectioning (5 mm) at –25°C for immunochemical staining. Unfixed muscle tissue sections were only used for muscle fiber determinations by rinsing with 1X Tris Buffer Saline (TBS) 3 times, 5 min each, before blocking in 10% goat serum and 1% bovine serum albumin, followed by overnight incubation with primary antibodies at 4°C. Subsequent secondary antibody staining at room temperature for 1 h. TBS/T (0.3% Triton) was used for membrane permeabilization to identify satellite cells, FAPs, and basement membrane. Mounting media containing 4,6-diamidino-2-phenylindole (DAPI) was used for nucleus staining. Primary antibodies against PDGFRα, paired box 7 (PAX7), laminin, and different isoforms of skeletal muscle myosins were used to identify FAPs, satellite cells, basement membrane, and different types of muscle fiber, respectively. All the sections were visualized under a Nikon inflorescence microscope, and images were analyzed by Image J software to identify different muscle fiber types and positive signals of PDGFRα and PAX7. Minimum diameter of each muscle fiber type was the average of 30 randomly selected fibers per section. Data were analyzed with R-studio using ‘t.test ()’ function with the critical value being equal to 0.05.ResultsWagyu muscle demonstrated a greater (P = 0.01) number of FAPs compared with Brahman muscle. A trend toward a higher (P = 0.06) abundance of satellite cells in Wagyu muscle than in Brahman muscles was also identified. No differences were found in muscle fiber diameter or muscle fiber type composition between these two breeds of cattle.ConclusionThe greater number of FAP cells observed in the LM of Wagyu cattle than in Brahman cattle suggests that the higher marbling content of Wagyu meat is at least partially attributed to the more abundant adipogenic progenitor cells, which increases the capacity and efficiency of intramuscular adipogenesis in Wagyu cattle.
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Fu X, Li J, Liu CF. Wake-up stroke is associated with decreased percentage of individuals with low respiratory arousal threshold. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Li J, Chen Q, Shen Y, Fu X, Han F, Liu C. Effect of rem and nrem related osa on sleep architecture and prognosis of acute ischemic stroke patients. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Peng W, Fu X. Novel technique of near-focus mode for accurate operation during endoscopic submucosal tunneling procedure: A two-center comparative study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz420.011] [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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Fu X, Peng W. Helicobacter bilis may play a role in the carcinogenesis of colitis associated colon cancer correlating to increased number of CD4+CD45RB+ T cells. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz421.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhao J, Huang Z, Liu F, Chen X, Fu X. The Efficacy of Laser Zona Thinning on the Outcomes of Vitrified Human Embryo Transfers is Related to Fertilization Method and Not Vitrification Per Se. CRYO LETTERS 2019; 40:341-346. [PMID: 33966060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
BACKGROUND Embryo vitrification induces zona hardening, which can further influence the pregnancy outcome after vitrified human embryo transfer. However, the factors in fertilization or cryopreservation that contribute to zona hardening and influence the efficacy of laser zona thinning (LZT) is not well studied. OBJECTIVE To investigate whether fertilization methods and vitrification affect the efficacy of LZT treatment. MATERIALS AND METHODS The present study is a retrospective analysis of embryo transfers. The process involves two fertilization methods before embryo vitrification. LZT is used to deal with zona hardening. The pregnancy outcomes of 1274 embryo transfer cycles were reviewed statistically. RESULTS LZT treatment on vitrified embryos fertilized with intracytoplasmic sperm injection (ICSI) resulted in a significantly lower pregnancy rate and live birth rate compared to that by in vitro fertilization (IVF) (43.0% vs 54.3%, P=0.023; 34.4% vs 45.7%, P=0.021). LZT treatment on vitrified embryos fertilized with ICSI had a negative impact on pregnancy rate and live birth rate. CONCLUSION The efficacy of LZT treatment is related to the fertilization method rather than vitrification. LZT treatment for zona hardening of the vitrified embryos fertilized with ICSI leads to a lower pregnancy rate and live birth rate.
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Li H, Liu J, Fu X. EP1.01-34 A Retrospective Study of the Pattern of Lymph Node Metastasis in Superior Sulcus Non-Small-Cell Lung Cancers. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2006] [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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Zhu X, Fu X. Predicting the first failure pattern in patients with inoperable local advanced non-small cell lung cancer (LA-NSCLC) receiving definitive chemoradiotherapy: Establishment and internal validation of a nomogram based on the clinicopathological factors. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz259.008] [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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Liu M, Fu X, Wang S, Jiang L, Nan K, Wang W. RBP-Jκ in colon cancer cells facilitates tumour associated macrophages (TAMs)-induced cell metastasis by secreting CXCL11. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Wang X, Liu Y, Meng Z, Wu Y, Wang S, Jin G, Qin Y, Wang F, Wang J, Wang L, Bai J, Shi X, Wen Z, Jia X, Fu X, Wang X, Qin Q, Gao Y, Guo W, Lu S. Impact of plasma EGFR mutation fractions on response to first generation tyrosine-kinase inhibitor in treatment of naïve non-small cell lung cancer patients. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz259.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Jin M, Liao C, Fu X, Holdbrook R, Wu K, Xiao Y. Adaptive regulation of detoxification enzymes in Helicoverpa armigera to different host plants. INSECT MOLECULAR BIOLOGY 2019; 28:628-636. [PMID: 30834601 DOI: 10.1111/imb.12578] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Cotton plants produce gossypol as a major secondary metabolite to resist insect herbivores and pathogens. Helicoverpa armigera may employ multigene families of detoxification enzymes to deal with this metabolite. So far, the strength of the transcriptional response to gossypol detoxification in the cotton bollworms remains poorly understood. Here, we investigated the genomewide transcriptional changes that occur in cotton bollworm larvae after one generation feeding on various host plants (cotton, corn, soybean and chili) or an artificial diet. Six genes potentially involved in detoxification of xenobiotics were highly upregulated in bollworms fed on cotton, and the expression of five of these differed significantly in insects that fed on gossypol diet compared with the artificial diet. When these six genes were downregulated using RNA interference, downregulation only of CYP4L11, CYP6AB9 and CCE001b led to reduced growth of bollworm larvae feeding on gossypol diets. These data suggest that the three genes are involved in response of H. armigera to gossypol of cotton. Our results proved that H. armigera may have a broad mechanism for gossypol detoxification.
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Fu X, Zhu X, Li X. Radiation-induced lung injury and misdiagnosis rate after SBRT. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz258.014] [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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Li Y, Zhang P, Wu X, Wen D, Ji L, Chen L, Liu G, Fu X, Zhang J, Zhang C, Han J. High prevalence of norovirus GII.P16/GII.2 and chicken anemia virus in two acute gastroenteritis outbreaks in Huzhou, China. Acta Virol 2019; 63:328-332. [PMID: 31507200 DOI: 10.4149/av_2019_312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Acute gastroenteritis (AGE) is one of the most frequently occuring illnesses in children and adults worldwide. In February 2017, two AGE outbreaks occurred in two adjacent schools in Huzhou city, Zhenjiang province of China. We detected high percentages of recombinant norovirus GII.P16/GII.2 in one school and chicken anemia virus (CAV) in another school using next generation sequencing (NGS) and specific PCR. The results highlight the importance of continuous surveillance of GII.P16/GII.2, and suggest the need of further studies on whether CAV causes AGE. Keywords: acute gastroenteritis; norovirus; chicken anemia virus; Huzhou; School.
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Fu X, Liu T, Wang Z, Zhou G, Yu M, Lu X, Liu H, Zhang F. Two novel
SSH
1
mutations in Chinese patients with disseminated superficial actinic porokeratosis and immunohistochemical analysis of anti‐Slingshot homolog 1 antibody in one typical patient. J Eur Acad Dermatol Venereol 2019; 33:e486-e488. [PMID: 31310399 DOI: 10.1111/jdv.15810] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Yu W, Fu X, Cai X, Feng W, Liu M, Gao L. Maximum tolerated radiation dose for unresectable thoracic esophageal squamous cell carcinoma: both acute and late toxicities matter. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.167] [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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Fu X, Huang F, Chen Y, Deng Y, Wang Z. Application of dexmedetomidine-remifentanil in high-intensity ultrasound ablation of uterine fibroids: a randomised study. BJOG 2019; 124 Suppl 3:23-29. [PMID: 28856857 DOI: 10.1111/1471-0528.14740] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2017] [Indexed: 01/20/2023]
Abstract
OBJECTIVE To compare the effects of dexmedetomidine-remifentanil with the traditional analgesia and sedation regimen midazolam-remifentanil during HIFU treatment of uterine fibroids. DESIGN A randomised controlled trial. SETTING Department of Anesthesia in a single hospital. POPULATION Patients with uterine fibroids. METHODS A total of 80 patients diagnosed with uterine fibroids and scheduled for selective HIFU treatment were randomly divided into the dexmedetomidine group (the D group) and midazolam group (the M group). At 20 minutes before the HIFU procedure, patients in the D group received a loading dose of 0.8 μg/kg dexmedetomidine, followed by a continuous intravenous infusion of 0.2 μg/kg/hour until the end of the operation. Patients in the M group were given a corresponding amount of 0.9% saline. Patients in the M group received a slow intravenous infusion of 0.03 mg/kg midazolam before the procedure, an intravenous injection of 0.02 mg/kg 30 minutes later, another 0.02 mg/kg 60 minutes later, followed by 0.02 mg/kg at 40-minutes intervals. Patients in the D group were given a corresponding amount of 0.9% saline. During the HIFU procedure, patients in both groups were administered remifentanil at an effect site concentration of 1.0 ng/ml. Sedation and analgesia were rated using the Ramsay Sedation Scale (RSS) and Visual Analogue Scale (VAS) before drug administration (T1), after drug administration but before HIFU (T2), at the beginning of HIFU (T3), 15 minutes later (T4), 45 minutes later (T5), 75 minutes later (T6), and at the end of HIFU (T7). Patient satisfaction score and Steward recovery score survey were conducted 30 minutes after surgery. MAIN OUTCOME MEASURES Different effects of the traditional midazolam-remifentanil regimen and dexmedetomidine-remifentanil. RESULTS All patients in both groups underwent a successful HIFU procedure without developing serious complications during the postoperative period. However, the D group reported significantly fewer cases of respiratory depression than the M group during HIFU treatment (P < 0.05). The pause during HIFU ablation in the D group was significantly shorter than that in the M group. HIFU ablation intensity, the number of patients with an RSS of 3 or 4 measured at different time points, and the number of patients with an RSS of 3 or 4 measured at arousal were significantly greater in the D than the M group (P < 0.05). Likewise, the D group scored significantly higher in the evaluation of patient satisfaction, recovery score, and surgeon satisfaction (P < 0.05). CONCLUSIONS Both dexmedetomidine-remifentanil and midazolam-remifentanil met the requirements and ensured the safety of HIFU treatment of uterine fibroids. However, compared with the traditional midazolam-remifentanil regimen, dexmedetomidine-remifentanil was associated with more stable sedation in patients, more efficient HIFU treatment and higher degree of patient comfort. TWEETABLE ABSTRACT Dexmedetomidine-remifentanil is associated with more stable sedation in patients, more efficient HIFU treatment and higher degree of patient comfort than is midazolam-remifentanil.
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Cao SJ, Wang LF, Ba T, Fu X, Li F, Hao CG. [Effects of allogeneic mouse adipose-derived mesenchymal stem cell-microporous sheep acellular dermal matrix on healing of wound with full-thickness skin defect in mouse and the related mechanism]. ZHONGHUA SHAO SHANG ZA ZHI = ZHONGHUA SHAOSHANG ZAZHI = CHINESE JOURNAL OF BURNS 2019; 34:901-906. [PMID: 30585055 DOI: 10.3760/cma.j.issn.1009-2587.2018.12.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the allogeneic mouse adipose-derived mesenchymal stem cell (ADSC)-microporous sheep acellular dermal matrix (ADM) on healing of wound with full-thickness skin defect in mouse and the related mechanism. Methods: One Kunming mouse was sacrificed by cervical dislocation to collect adipose tissue from inguinal region. Mouse ADSCs were isolated from the adipose tissue and cultured in vitro. Cells of the third passage were identified by cell adipogenic and osteogenic differentiation. The expressions of CD73, CD90, CD105, and CD34 were analyzed by flow cytometry. After one sheep was sacrificed, microporous sheep ADM was prepared from sheep back using decellularization method and freezing-thawing method. A 12 mm diameter, round, full-thickness skin defect wound was made on the back of each one of 36 Kunming mice. The wounds were covered by microporous sheep ADM. The mice were divided into group ADSC and control (C) group with 18 mice in each group according to the random number table after surgery. A volume of 0.2 mL DMEM/F12 culture medium containing 1×10(6) ADSCs was injected between microporous sheep ADM and wound of mice in group ADSC. While 0.2 mL DMEM/F12 culture medium was injected between microporous sheep ADM and wound of mice in group C. On post surgery day (PSD) 12 and 17, wound healing rates of mice in the 2 groups were calculated. On PSD 7, 12, and 17, wound vascularization of mice in the 2 groups was observed under reverse irradiation of backlight. On PSD 7, 12, and 17, the wound granulation tissue of mice in group ADSC was observed by hematoxylin and eosin staining. On PSD 7, the thicknesses of granulation tissue of mice in the 2 groups was measured. On PSD 12 and 17, expressions of VEGF in wounds of mice in the 2 groups were detected by immunohistochemical method. The sample number was 6 in each group at each time point in the above experiments. Data were processed with t test and analysis of variance of factorial design. Results: (1) After 7 days of adipogenic induction, lipid droplet was observed in cytoplasm using oil red O staining. After 21 days of osteogenic induction, black deposits of calcium salts were detected using silver nitrate staining. Expression rates of CD73, CD90, CD105, and CD34 in cells were 97.82%, 99.32%, 97.35%, and 5.88% respectively. The cells were identified as ADSCs. (2) The wound healing rates of mice in group ADSC on PSD 12 and 17 [(78±6)%, (98±3)%] were significantly higher than those in group C [(60±9)%, (90±4)%, t=4.26, 4.46, P<0.01]. (3) On PSD 7, no vessel obviously grew into the center of wounds of mice in the 2 groups, while the granulation tissue has covered the wounds of mice in group ADSC. On PSD 12, the vessels were more abundant in wounds of mice in group ADSC than those in group C. On PSD 17, big vessels crossing the whole wounds was observed in wounds of mice in group ADSC, while big vessels were observed without crossing the whole wounds in wounds of mice in group C. (4) The wounds were covered with thin granulation tissue on PSD 7, and the granulation tissue began to thicken on PSD 12 and were covered by epidermis on PSD 17 in wounds of mice in group ADSC. On PSD 7, the granulation tissue in wounds of mice in group ADSC [(0.62±0.05) mm] was significantly thicker than that in group C [ (0.31±0.04) mm, t=12.27, P<0.01]. (5) On PSD 12 and 17, expressions of VEGF in wounds of mice in group ADSC [(80.7±2.2), (0.98±0.03)/mm(2)] were significantly than those in group C [(59.5±2.4), (81.5±2.6)/mm(2,) t=15.95, 14.14, P<0.01]. Conclusions: Allogeneic mouse ADSC-microporous sheep ADM can accelerate angiogenesis and growth of granulation tissue, thus promoting wound healing, which may be due to the increase of expression of VEGF.
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Xing L, Jin B, Fu X, Zhu J, Guo X, Xu W, Mou X, Wang Z, Jiang F, Zhou Y, Chen X, Shu J. Identification of functional estrogen response elements in glycerol channel Aquaporin-7 gene. Climacteric 2019; 22:466-471. [PMID: 30888885 DOI: 10.1080/13697137.2019.1580255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Bhat R, Qin L, De Angelis C, Sahay D, Bhargava D, Creighton C, Yadav P, Yazdanfard S, Alrawi A, Yadav V, Vasaikar S, Nanda S, Sethunath V, Fu X, Zhang B, Narkar V, Schiff R, Trivedi M. Abstract P6-20-10: Role of GPR110 in breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p6-20-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Our long-term goal is to discover adhesion GPCR targets in breast cancer. Our previous studies have found GPR110 to be overexpressed in tumorigenic cell population as well as in anti-HER2 drug-resistant derivatives of HER2+ breast cancer cells. In subsequent studies, we found that GPR110 knockdown inhibited anchorage-independent cell growth, mammosphere formation, and invasion/migration of HER2+ breast cancer cells. Conversely, overexpression of GPR110 by lentiviral delivery of cDNA enhanced anchorage-independent cell growth, mammosphere formation, and invasion/migration in HER2+ breast cancer cells. In addition, GPR110 overexpression led to increase in the % of Aldefluor-positive tumorigenic cell population, further emphasizing the role of GPR110 as a mediator of tumorigenesis in addition to the metastatic processes in HER2+ breast cancer. Among various subtypes of breast cancer, GPR110 expression was higher in HER2+ and basal subtypes, most of which are triple-negative (negative for ER, PR, and HER2), compared to luminal A and B subtypes. GPR110 was either gene amplified or upregulated in 4% of all breast cancers based on the publicly available TCGA dataset. GPR110 overexpression predicted poorer recurrence-free survival in triple-negative breast cancer. Furthermore, GPR110 was overexpressed in brain metastatic lesions compared to mammary tumors in patient-derived xenograft models of triple-negative breast cancer (WHIM2 and WHIM30). Knocking down GPR110 reduced anchorage-dependent and -independent cell growth, mammosphere formation, and invasion/migration of triple-negative breast cancer cells. Overall, our results suggest that GPR110 may be a potential drug target in HER2+ and triple-negative breast cancer. Drug discovery efforts to identify GPR110 antagonists will provide useful pharmacological tools for validating GPR110 as a drug target in breast cancer. Since GPR110 is also overexpressed in various other types of cancer, understanding the mechanism of GPR110 upregulation and signaling in cancer is an important future direction.
This work was supported by the Department of Defense Grants W81XWH-14-1-0340 and W81XWH-14-1-0341 to Drs. Trivedi and Schiff, respectively.
Citation Format: Bhat R, Qin L, De Angelis C, Sahay D, Bhargava D, Creighton C, Yadav P, Yazdanfard S, Alrawi A, Yadav V, Vasaikar S, Nanda S, Sethunath V, Fu X, Zhang B, Narkar V, Schiff R, Trivedi M. Role of GPR110 in breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P6-20-10.
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Bourre L, Zhang L, Qi S, Wu H, Zhao L, An X, Tan W, Fu X, Qiao M, Shi Q, Yang W. Establishment and application of a panel of PBMC-humanized mouse tumor models in cancer immunotherapy. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz027.003] [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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Li C, Liu Q, Welborn M, McMillin K, Fu X. Potential Mechanisms for Marbling Content Differences in M. Longissimus Dorsi From Wagyu And Brahman Cattle. MEAT AND MUSCLE BIOLOGY 2019. [DOI: 10.22175/mmb2019.0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Fu X. 458 Identification and Characterization of Bovine Skeletal muscle FAP cells. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.516] [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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Song Y, Qin SC, Fu X, Jiang ZM, Chen K, Wang XL, Zhang RF, Liuang Y, Zhang RF, Liu Y. The efficacy of trans-esophageal echocardiography in treatment of nonvalvular atrial fibrillation with left atrial appendage occlusion. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2018; 22:8552. [PMID: 30575892 DOI: 10.26355/eurrev_201812_16675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The article "The efficacy of trans-esophageal echocardiography in treatment of nonvalvular atrial fibrillation with left atrial appendage occlusion" by Y. Song, S.-C. Qin, X. Fu, Z.-M. Jiang, K. Chen, X.-L. Wang, R.-F. Zhang, Y. Liuang, R.-F. Zhang, Y. Liu, published in Eur Rev Med Pharmacol Sci 2018; 22 (16): 5335-5338 has been withdrawn.
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Li L, You J, Fu X, Wang Z, Sun Y, Liu H, Zhang F. Variants of CARD14 are predisposing factors for generalized pustular psoriasis (GPP) with psoriasis vulgaris but not for GPP alone in a Chinese population. Br J Dermatol 2018; 180:425-426. [PMID: 30387497 DOI: 10.1111/bjd.17392] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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80
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Zeng W, Feng W, Fu X. Postoperative Radiation Therapy for Resected Stage IIIA-N2 Non-Small-Cell Lung Cancer: A Population Study from 1988 to 2014 Using the Surveillance, Epidemiology, and End Results Database. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1933] [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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81
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Wang C, Wang Z, Wang H, Pan Q, Fu X, Liu T, Yu G, Liu H, Zhang F. Association analysis of the genetic polymorphisms with leprosy subtypes in Chinese Han population from Northern China. J Eur Acad Dermatol Venereol 2018; 32:e377-e379. [DOI: 10.1111/jdv.14946] [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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82
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Fu X, Liu M, Qu S, Ma J, Zhang Y, Shi T, Wen H, Yang Y, Wang S, Wang J, Nan K, Yao Y, Tian T. Exosomal microRNA-32-5p induces multidrug resistance in hepatocellular carcinoma via the PI3K/AKT pathway. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy268.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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83
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Zhao L, Guo J, Cai X, Fu X. JCSE01.20 Outcome in Small Cell Lung Cancer Patients with Cerebral Recurrence After Prior Prophylactic Cranial Irradiation. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.226] [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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84
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Sun Y, Liu H, Yang B, Wang C, Foo JN, Bao F, Irwanto A, Yu G, Fu X, Wang Z, You J, Liu J, Zhou G, Liu J, Zhang F. Investigation of the predisposing factor of pemphigus and its clinical subtype through a genome-wide association and next generation sequence analysis. J Eur Acad Dermatol Venereol 2018; 33:410-415. [PMID: 30169916 DOI: 10.1111/jdv.15227] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 07/26/2018] [Indexed: 01/27/2023]
Abstract
BACKGROUND Pemphigus is an autoimmune blistering disease with pemphigus vulgaris (PV) and foliaceus (PF) as the two major histological subtypes. Associations with HLA molecules have been suggested, but specific HLA risk variants as well as non-HLA risk variants remain to be discovered. METHODS We performed a two-stage genome-wide association study in the Chinese Han population through a genome-wide discovery analysis and follow-up validation analysis in a total number of 210 PV, 159 PF and 2493 healthy controls. HLA imputation as well as high coverage next generation sequencing based HLA genotyping was employed to investigate the association of classical HLA alleles and amino acid change. RESULTS We have discovered independent novel associations with PF at rs2178077 on 12q24.33, located next to RAN (PPF = 1.57 × 10-9 ) and rs3888722 within the MHC region (P = 6.73 × 10-9 ). For the HLA variants, we confirmed independent genome-wide level risk associations in HLA-DQB1 and HLA-DRB1, with DQB1*05:03 to be the strongest association with PV (P = 8.59 × 10-68 , OR = 31.16) and PF (P = 4.84 × 10-17 , OR = 5.64). In addition, DRB1*14 was demonstrated to be a second independent variants (P = 4.2 × 10-63 , OR = 35.47) for PV, while DRB1*04:06 was demonstrated to be the second independent signal (P = 7.44 × 10-13 , OR = 5.58) for PF. CONCLUSIONS These findings advance our understanding of the genetic basis of pemphigus susceptibility and may offer opportunities for risk prediction and preventive treatment for pemphigus, in particular for PV.
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Song Y, Qin SC, Fu X, Jiang ZM, Chen K, Wang XL, Zhang RF, Liuang Y, Zhang RF, Liu Y. The efficacy of trans-esophageal echocardiography in treatment of nonvalvular atrial fibrillation with left atrial appendage occlusion. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2018; 22:5335-5338. [PMID: 30178859 DOI: 10.26355/eurrev_201808_15734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the efficacy of transesophageal echocardiography (TEE) in the treatment of nonvalvular atrial fibrillation with left atrial appendage (LAA) occlusion. PATIENTS AND METHODS Forty-nine patients with nonvalvular atrial fibrillation were selected from January 2015 to December 2015 to serve as control group, and 49 patients with nonvalvular atrial fibrillation were selected from January 2016 to December 2016 to serve as observation group. Patients in both groups were treated with LAA occlusion. After surgery, patients in control group received 2D-transesophageal echocardiography (2D-TEE), while patients in observation group received 3D-TEE. LAA diameter, maximum depth, postoperative parameters, and postoperative complications were compared between two groups. RESULTS The maximum LAA diameter can be measured from different angles in control group, and maximum depth cannot be measured in control group. No significant differences in maximum LAA diameter and maximum depth were found between two groups from different angles (p<0.05). No significant difference in left ventricular end diastolic diameter (LVEDd), left atrial diameter (LA-d), left ventricular ejection fraction (LVEF), mitral regurgitation volume (MV Reg V), E peak and pulmonary vein diastolic flow velocity (PVd) were found between those two groups (p<0.05). The overall occurrence of postoperative complications in observation group and control group were 0.00% and 12.24%, respectively, significant difference was found between those two groups (p<0.05). CONCLUSIONS Compared with 2D-TEE, the application of 3D-TEE in treatment of nonvalvular atrial fibrillation with left atrial appendage occlusion is more conducive to the selection of the size of the reservoir, and can reduce the occurrence of postoperative complications.
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Zhu W, Buffa JA, Wang Z, Warrier M, Schugar R, Shih DM, Gupta N, Gregory JC, Org E, Fu X, Li L, DiDonato JA, Lusis AJ, Brown JM, Hazen SL. Flavin monooxygenase 3, the host hepatic enzyme in the metaorganismal trimethylamine N-oxide-generating pathway, modulates platelet responsiveness and thrombosis risk. J Thromb Haemost 2018; 16:1857-1872. [PMID: 29981269 PMCID: PMC6156942 DOI: 10.1111/jth.14234] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 06/26/2018] [Indexed: 12/21/2022]
Abstract
Essentials Microbe-dependent production of trimethylamine N-oxide (TMAO) contributes to thrombosis risk. The impact of host flavin monooxygenase 3 (FMO3) modulation on platelet function is unknown. Genetic manipulation of FMO3 in mice alters systemic TMAO levels and thrombosis potential. Genetic manipulation of FMO3 is associated with alteration of gut microbial community structure. SUMMARY Background Gut microbes play a critical role in the production of trimethylamine N-oxide (TMAO), an atherogenic metabolite that impacts platelet responsiveness and thrombosis potential. Involving both microbe and host enzymatic machinery, TMAO generation utilizes a metaorganismal pathway, beginning with ingestion of trimethylamine (TMA)-containing dietary nutrients such as choline, phosphatidylcholine and carnitine, which are abundant in a Western diet. Gut microbial TMA lyases use these nutrients as substrates to produce TMA, which upon delivery to the liver via the portal circulation, is converted into TMAO by host hepatic flavin monooxygenases (FMOs). Gut microbial production of TMA is rate limiting in the metaorganismal TMAO pathway because hepatic FMO activity is typically in excess. Objectives FMO3 is the major FMO responsible for host generation of TMAO; however, a role for FMO3 in altering platelet responsiveness and thrombosis potential in vivo has not yet been explored. Methods The impact of FMO3 suppression (antisense oligonucleotide-targeting) and overexpression (as transgene) on plasma TMAO levels, platelet responsiveness and thrombosis potential was examined using a murine FeCl3 -induced carotid artery injury model. Cecal microbial composition was examined using 16S analyses. Results Modulation of FMO3 directly impacts systemic TMAO levels, platelet responsiveness and rate of thrombus formation in vivo. Microbial composition analyses reveal taxa whose proportions are associated with both plasma TMAO levels and in vivo thrombosis potential. Conclusions The present studies demonstrate that host hepatic FMO3, the terminal step in the metaorganismal TMAO pathway, participates in diet-dependent and gut microbiota-dependent changes in both platelet responsiveness and thrombosis potential in vivo.
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Fu X, Lu P, Zhang L, Ni WJ, Liu DM, Zhang JS. Analysis on Fourier characteristics of wavelength-scanned optical spectrum of low-finesse Fabry-Pérot acoustic sensor. OPTICS EXPRESS 2018; 26:22064-22074. [PMID: 30130906 DOI: 10.1364/oe.26.022064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 08/07/2018] [Indexed: 06/08/2023]
Abstract
In this work, we investigate the Fourier characteristics of wavelength-scanned optical spectrum of low-finesse Fabry-Pérot (FP) acoustic sensor both theoretically and experimentally. The wavelength scanning will transform the time-domain acoustic signal into phase modulation loaded on the FP sensor spectrum distributed along wavelength. Therefore the interference spectrum can be regarded as carrier signal in the wavelength domain. From this perspective, it is intelligible that the phase modulation loaded on the spectrum (carrier signal) will introduce sidebands in Fourier domain. The spatial frequency and phase of sideband components contain unique information of both acoustic signal and the corresponding sensor. These conclusions are experimentally proved by single sensor head as well as two parallel sensors. The Fourier characteristics of sideband components can be utilized to recognize and distinguish acoustic signals received by different sensors, indicating that it has potential applications in multiplexed FP sensor array and source localization, and so forth.
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Wan S, Fu X, Ji Y, Li M, Shi X, Wang Y. FAK- and YAP/TAZ dependent mechanotransduction pathways are required for enhanced immunomodulatory properties of adipose-derived mesenchymal stem cells induced by aligned fibrous scaffolds. Biomaterials 2018; 171:107-117. [DOI: 10.1016/j.biomaterials.2018.04.035] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 04/15/2018] [Indexed: 01/14/2023]
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Wang Z, Mi Z, Wang H, Sun L, Yu G, Fu X, Wang C, Bao F, Yue Z, Zhao Q, Wang N, Cheng X, Liu H, Zhang F. Discovery of 4 exonic and 1 intergenic novel susceptibility loci for leprosy. Clin Genet 2018; 94:259-263. [PMID: 29722023 DOI: 10.1111/cge.13376] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/26/2018] [Accepted: 05/01/2018] [Indexed: 12/13/2022]
Abstract
Seven new risk coding variants have been identified through an exome-wide association study (EWAS), which studied the contributions of protein-coding variants to leprosy susceptibility. But some potential susceptibility loci were not studied in the previous EWAS study because of the project consideration. Seventeen unstudied potential susceptibility loci of the previous EWAS were validated in 3169 cases and 9814 controls in this study. Four disease-associated exonic loci were identified: rs671 in ALDH2 (P = 2.0 × 10-20 , odds ratio [OR] = 1.35), rs13259978 in SLC7A2 (P = 1.74 × 10-8 , OR = 1.28), rs925368 in GIT2 (P = 9.18 × 10-17 , OR = 1.44), and rs75680863 in TCN2 (P = 8.37 × 10-21 , OR = 0.74). Potentially implicating ZFP36L1 as a new susceptibility gene, 1 intergenic single nucleotide polymorphism (SNP), rs1465788 (P = 7.81 × 10-6 , OR = 0.88), was also suggested to be associated with leprosy. A luciferase reporter assay showed that the rs1465788 risk allele notably decreased the transcription activity of the flanking sequence. These findings suggest the possible involvement of lipid metabolism, NF-κB homeostasis and macrophage antimicrobial pathways in leprosy pathogenesis.
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Yin Y, Fu X, Zhu Y, Pang B. Proposal of a novel CHF correlation for PWR under low pressure conditions based on stepwise regression method. KERNTECHNIK 2018. [DOI: 10.3139/124.110881] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Constrained by limited experimental data, development of CHF correlation for PWR fuel assemblies under transient and accidental conditions at low pressure levels (2–10 MPa) is a typical statistical problem with small sample amounts, but simultaneously has requirements of high prediction accuracy. In this study, stepwise regression method was used to develop a new CHF correlation for application in PWR under low pressure conditions. First, several essential thermal-hydraulic parameters which might influence CHF were selected based on consensus characteristics of DNB phenomenon. With stepwise regression, the form and coefficients of the proposed CHF correlation were optimized in a dynamic manner. Compared to currently available CHF correlations, represented by the Westinghouse W-3 correlation, the CHF correlation obtained by stepwise regression has a much simpler form and matches also well with the experimental data.
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Fu X, Kato S, Long J, Mattingly HH, He C, Vural DC, Zucker SW, Emonet T. Spatial self-organization resolves conflicts between individuality and collective migration. Nat Commun 2018; 9:2177. [PMID: 29872053 PMCID: PMC5988668 DOI: 10.1038/s41467-018-04539-4] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 05/03/2018] [Indexed: 12/24/2022] Open
Abstract
Collective behavior can spontaneously emerge when individuals follow common rules of interaction. However, the behavior of each individual differs due to existing genetic and non-genetic variation within the population. It remains unclear how this individuality is managed to achieve collective behavior. We quantify individuality in bands of clonal Escherichia coli cells that migrate collectively along a channel by following a self-generated gradient of attractant. We discover that despite substantial differences in individual chemotactic abilities, the cells are able to migrate as a coherent group by spontaneously sorting themselves within the moving band. This sorting mechanism ensures that differences between individual chemotactic abilities are compensated by differences in the local steepness of the traveling gradient each individual must navigate, and determines the minimum performance required to travel with the band. By resolving conflicts between individuality and collective migration, this mechanism enables populations to maintain advantageous diversity while on the move. How bacteria migrate collectively despite individual phenotypic variation is not understood. Here, the authors show that cells spontaneously sort themselves within moving bands such that variations in individual tumble bias, a determinant of gradient climbing speed, are compensated by the local gradient steepness experienced by individuals.
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Liu M, Zhang H, Yang Y, Fu X, Nan K, Tian T. Colorectal neuroendocrine carcinoma and colorectal mixed adeno-neuroendocrine carcinoma: A population-based study of the surveillance, epidemiology, and end results registry. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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93
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Hu P, Wang Y, Sun R, Cao L, Chen X, Liu C, Luo C, Ma D, Wang W, Fu X, Shi W, Yi S, Zhang K, Liu H, Xu Z. Copy Number Variations with Isolated Fetal Ventriculomegaly. Curr Mol Med 2018; 17:133-139. [PMID: 28260505 DOI: 10.2174/1566524017666170303125529] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 02/05/2017] [Accepted: 02/10/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Copy Number Variations (CNVs) are an important genetic cause of a number of neurodevelopmental disorders (NDs). However, the association between CNVs and the development and prognosis of fetal isolated mild ventriculomegaly (IMV) is unclear. OBJECTIVES To investigate possible associations between CNVs and the development of fetal IMV. METHODS This retrospective study recruited 154 subjects with ultrasound-confirmed fetal IMV and 190 subjects in a control cohort who underwent a high-risk prenatal serum screening program. The exclusion criteria included fetus G-banding chromosomal abnormality or positive fetus TORCH infection. DNA samples from all 344 fetuses were examined by an SNP-array. Developmental outcomes were assessed during postnatal follow-up. RESULTS Fourteen pathogenic CNVs (pCNVs) were identified in 13 out of 154 IMV fetuses. Three pCNVs were found in 3 out of 190 subjects in the prenatal screening high-risk cohort, with a significant difference (P value=0.016, X2 test). Notably, the 14 pCNVs detected in the IMV cohort were all associated with neurodevelopmental disorders (NDs), including autism, intellectual disability. Among the 13 IMV fetuses carrying pCNVs, five subjects were found in the postnatal follow-up to manifest NDs, including two with autism and three with mild neurodevelopmental delay. The other 8 subjects consisted of three normal infants younger than 12-months old, two lost in the follow-up, and three with the termination of pregnancy. Out of 141 IMV subjects without detectable pCNVs, 123 subjects showed normal development, 16 were lost in the follow-up, 2 subjects terminated the pregnancy due to fetal hydrocephalus or congenital heart disease in the late fetus development. CONCLUSIONS This study suggests an association between pCNVs and fetal IMV. pCNVs may be involved in the pathological process of fetal IMV and postnatal NDs. Identifying specific genomic alterations may provide an insight into pathogenetic mechanism and aid better diagnosis and prognosis of neurodevelopmental outcomes in fetal IMV.
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Zhou Y, Ni X, Wen B, Duan L, Sun H, Yang M, Zou F, Lin Y, Liu Q, Zeng Y, Fu X, Pan K, Jing B, Wang P, Zeng D. Appropriate dose of Lactobacillus buchneri supplement improves intestinal microbiota and prevents diarrhoea in weaning Rex rabbits. Benef Microbes 2018; 9:401-416. [DOI: 10.3920/bm2017.0055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This study examined the effects on intestinal microbiota and diarrhoea of Lactobacillus buchneri supplementation to the diet of weaning Rex rabbits. To this end, rabbits were treated with L. buchneri at two different doses (LC: 104 cfu/g diet and HC: 105 cfu/g diet) for 4 weeks. PCR-DGGE was used to determine the diversity of the intestinal microbiota, while real-time PCR permitted the detection of individual bacterial species. ELISA and real-time PCR allowed the identification of numerous cytokines in the intestinal tissues. Zonula occludens-1, polymeric immunoglobulin receptor and immunoglobulin A genes were examined to evaluate intestinal barriers. Results showed that the biodiversity of the intestinal microbiota of weaning Rex rabbits improved in the whole tract of the treated groups. The abundance of most detected bacterial species was highly increased in the duodenum, jejunum and ileum after L. buchneri administration. The species abundance in the HC group was more increased than in the LC group when compared to the control. Although the abundance of Enterobacteriaceae exhibited a different pattern, Escherichia coli was inhibited in all treatment groups. Toll-like receptor (TLR)2 and TLR4 genes were down-regulated in all intestinal tissues as the microbiota changed. In the LC group, the secretion of the inflammatory cytokine tumour necrosis factor-α was reduced, the gene expression of the anti-inflammatory cytokine interleukin (IL)-4 was up-regulated and the expression of intestinal-barrier-related genes was enhanced. Conversely, IL-4 expression was increased and the expression of other tested genes did not change in the HC group. The beneficial effects of LC were greater than those of HC or the control in terms of improving the daily weight gain and survival rate of weaning Rex rabbits and reducing their diarrhoea rate. Therefore, 104 cfu/g L. buchneri treatment improved the microbiota of weaning Rex rabbits and prevented diarrhoea in these animals.
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Liu M, Jiang L, Fu X, Liang X. 179P The cytoplasmic LKB1 promotes the growth of human lung adenocarcinoma by enhancing autophagy. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30453-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Fu X, Pereira R, De Angelis C, Veeraraghavan J, Shea MJ, Nanda S, Feng Q, Jeselsohn R, O'Malley BW, Brown M, Osborne CK, Schiff R. Abstract P4-04-03: Hyperactive FOXA1 activates super-enhancer-engaged HIF2α/EPAS1 to promote endocrine-resistant metastatic ER-positive breast cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-04-03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: We have recently reported that acquired endocrine resistance (Endo-R) in multiple ER+ breast cancer (BC) Endo-R cell models is driven by high levels of FOXA1 (High-FOXA1), via gene amplification and/or overexpression (OE), leading to coordinated reprogramming of the FOXA1 genomic binding (cistrome) and transcriptome. Forced FOXA1 OE in parental (P) cells induced similar transcriptional reprogramming leading to Endo-R and metastasis. Recent clinical data showing enrichment of FOXA1 amplification in ER+ metastases further support the clinical importance of our findings. However, the molecular components and the mechanism of High-FOXA1-induced transcriptional reprogramming in Endo-R and metastasis are unknown.
Methods: High-FOXA1-containing MCF7 tamoxifen-resistant (TamR) and P/FOXA1-OE cells were used in this study. An integrative multi-OMICS approach was employed to analyze transcriptome (RNA-seq), FOXA1 cistrome, and histone H3K27 acetylation (ac) (ChIP-seq). Intersection of High-FOXA1-induced transcriptome and distinct FOXA1 cistrome-predicted genes defined a High-FOXA1 core gene signature (CGS). Gene Set Enrichment Analysis (GSEA) and Gene Ontology (GO) were used for functional annotation. Cell growth and migration/invasion were measured by a bright-field automated cell counter and Transwell insert system. Altered gene expression was measured by RT-qPCR. High-FOXA1 signaling inhibition included gene knockdown (siRNA) or pharmacologic blockade (the EPAS1 inhibitor PT2385). The predictive role of EPAS1 and the associated gene signature were analyzed using publicly available BC datasets.
Results: FOXA1 OE reprogrammed the FOXA1 cistrome in P cells to resemble that of the TamR cells. The FOXA1 cistrome was significantly correlated with the deposition of H3K27ac in TamR vs. P cells (P<2.2e-16). Similarly, the differentially expressed genes in TamR vs. P cells were enriched for FOXA1 binding at enhancers demarcated by H3K27ac (P=8e-125). The FOXA1-CGS was linked to multiple metastasis-related GO terms including “hypoxia response”, enriched for the cancer secretome gene set (P=4.1e-16), and highly represented in the Endo-R transcriptome across our multiple cell models (MCF7, 600MPE, and CAMA1) (P<0.01). Integrative analysis of H3K27ac-defined super-enhancers (SEs) and altered cistrome/transcriptome upon High-FOXA1 nominated EPAS1, a hypoxia-inducible transcription factor (TF), as a top candidate of SE-activated TFs amplifying High-FOXA1 signaling. EPAS1 blockade markedly repressed the secretome genes (e.g., IL8 and S100P) and cell migration and invasion in TamR cells. Primary ER+ tumors (TCGA) with high EPAS1 are enriched for a cancer secretome gene set (P=3e-4). High EPAS1 predicts poor distant metastasis-free survival in ER+ BC treated with endocrine therapy (P=.034).
Conclusions: High-FOXA1 induces transcriptional reprogramming by coordinating histone enhancer marks to activate EPAS1 via an SE mechanism, which in turn mediates transcriptional reprogramming, partly via inducing a pro-metastatic secretome, to promote Endo-R and metastasis. Targeting the High-FOXA1/EPAS1 axis to block transcriptional reprogramming may offer a new therapeutic strategy to prevent and treat Endo-R metastatic ER+ BC.
Citation Format: Fu X, Pereira R, De Angelis C, Veeraraghavan J, Shea MJ, Nanda S, Feng Q, Jeselsohn R, O'Malley BW, Brown M, Osborne CK, Schiff R. Hyperactive FOXA1 activates super-enhancer-engaged HIF2α/EPAS1 to promote endocrine-resistant metastatic ER-positive breast cancer [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-04-03.
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De Angelis C, Nardone A, Cataldo ML, Veeraraghavan J, Fu X, Giuliano M, Malorni L, Jeselsohn R, Osborne KC, Schiff R. Abstract P4-03-05: AP-1 as a potential mediator of resistance to the cyclin-dependent kinase (CDK) 4/6-inhibitor palbociclib in ER-positive endocrine-resistant breast cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-03-05] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The CDK4/6-inhibitor palbociclib (Palbo) in combination with endocrine therapy (ET) substantially improves progression-free survival compared to ET alone. However, almost all initial responders eventually develop resistance and relapse. Delineating the early adaptive signaling and the mechanisms underlying resistance to CDK4/6 inhibition is therefore crucial to identify new biomarkers and therapeutic targets to enhance the efficacy of Palbo and improve patient outcome.
Materials and Methods: MCF7 parental (P) cells and derivative lines made resistant (R) to tamoxifen (TamR), estrogen deprivation (EDR), or fulvestrant (FulR) were used. The MCF7P line and its endocrine-R (EndoR) derivatives were exposed to increasing concentrations of Palbo to generate acquired Palbo-R (PDR) models. The proteomic/signaling profiles of P and EndoR cells upon short-term Palbo treatment and as PDR develops were determined using reverse-phase protein arrays (RPPA). Transcriptional activity of the activator protein-1 (AP-1) transcription factor (TF) was measured by luciferase reporter assay. Global AP-1 blockade was achieved using a pINDUCER system to express doxycycline (Dox)-inducible dominant-negative (DN) c-Jun that lacks the transcriptional activation domain. Cell growth and colony formation were assessed using methylene blue staining and clonogenic assays, respectively. Levels of phosphorylated (p)-RB and CDK2 were assessed by Western Blot.
Results: In P and all EndoR cell models, Palbo inhibited cell growth and colony formation in a dose-dependent manner, though the inhibitory effect was greater in the EndoR cells compared to P cells [IC50 value of P cells >3 times that of EndoR lines (p<0.001); clonogenic % inhibition at 100nM = 54 in P and >85 in EndoR lines (p<0.001)]. Across the P and all EndoR models, short-term Palbo treatment resulted in increased levels of several membrane and intracellular signaling molecules, TFs, and enzymes. Among these, the AP-1 TF components c-Jun and p-c-Jun showed the highest increase across all models, with the utmost change observed in the TamR model (Fold-change = 4.4, 4.0 for total and p-c-Jun, respectively). Since we also observed that acquired resistance to Palbo in the TamR model was associated with higher AP-1 transcriptional activity and increased total and p-c-Fos levels, we assessed the efficacy of combining Palbo with AP-1 blockade in the TamR model. In two independent TamR clones ectopically expressing inducible DN-c-Jun, AP-1 blockade (+Dox) in combination with Palbo was highly effective in inhibiting cell growth and reducing p-RB and CDK2 levels compared to single agent treatments. In addition, in both the TamR/DN-c-Jun-expressing clones, the combination of Palbo, AP-1 blockade, and fulvestrant resulted in cell death and a significantly greater cell growth inhibition compared to any dual or mono treatments.
Conclusion: Our results suggest activation of AP-1 as a potential mechanism of resistance to Palbo in ER+ EndoR models. Transcriptomic profiling of the Palbo-sensitive and R cells, currently underway, will provide an in-depth understanding of the role of AP-1 as well as other key targets and associated molecular mechanisms in Palbo resistance.
Citation Format: De Angelis C, Nardone A, Cataldo ML, Veeraraghavan J, Fu X, Giuliano M, Malorni L, Jeselsohn R, Osborne KC, Schiff R. AP-1 as a potential mediator of resistance to the cyclin-dependent kinase (CDK) 4/6-inhibitor palbociclib in ER-positive endocrine-resistant breast cancer [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-03-05.
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Jungi S, Fu X, Segiser A, Busch M, Most P, Fiedler M, Carrel T, Tevaearai Stahel H, Longnus SL, Most H. Enhanced Cardiac S100A1 Expression Improves Recovery from Global Ischemia-Reperfusion Injury. J Cardiovasc Transl Res 2018; 11:236-245. [PMID: 29392537 DOI: 10.1007/s12265-018-9788-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 01/08/2018] [Indexed: 12/14/2022]
Abstract
Gene-targeted therapy with the inotropic Ca2 + -sensor protein S100A1 rescues contractile function in post-ischemic heart failure and is being developed towards clinical trials. Its proven beneficial effect on cardiac metabolism and mitochondrial function suggests a cardioprotective effect of S100A1 in myocardial ischemia-reperfusion injury (IRI). Fivefold cardiomyocyte-specific S100A1 overexpressing, isolated rat hearts perfused in working mode were subjected to 28 min ischemia (37 °C) followed by 60 min reperfusion. S100A1 overexpressing hearts showed superior hemodynamic recover: Left ventricular pressure recovered to 57 ± 7.3% of baseline compared to 51 ± 4.6% in control (p = 0.025), this effect mirrored in LV work and dP/dt(max). Troponin T and lactate dehydrogenase was decreased in the S100A1 group, as well as FoxO pro-apoptotic transcription factor, indicating less tissue necrosis, whereas phosphocreatine content was higher after reperfusion. This is the first report of a cardioprotective effect of S100A1 overexpression in a global IRI model.
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Gao W, Sun L, Fu X, Lin Z, Xie W, Zhang W, Zhao F, Chen X. Enhanced diabetic wound healing by electrospun core–sheath fibers loaded with dimethyloxalylglycine. J Mater Chem B 2018; 6:277-288. [DOI: 10.1039/c7tb02342a] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
DMOG-loaded nanofibrous wound dressings enhanced diabetic wound healing by stabilizing HIF-1α.
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Zheng D, Yin K, Zheng JJ, Zhou N, Liu Y, Fu X, Cheng JD. [Research Progress of Sudden Cardiac Death in Forensic Medicine]. FA YI XUE ZA ZHI 2017; 33:457-469. [PMID: 29275549 DOI: 10.3969/j.issn.1004-5619.2017.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Indexed: 11/18/2022]
Abstract
Sudden death (SD) is a special kind of death owing to disease, which severely threatening the lives of community population. As the most common type of SD, sudden cardiac death (SCD) has always been a crucial content of identification and research in forensic pathology. This article reviews the research progress from the aspects of epidemiology, morphology, molecular pathology and virtual anatomy of SCD in forensic medicine, so as to provide a reference for the morphological identification, determination of cause of death, and integrated control of this kind of SD.
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