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1.
CNS Neurosci Ther ; 30(4): e14519, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-37905694

RESUMO

BACKGROUND: The microbiota-gut-brain axis plays a critical role in neuropsychiatric disorders, particularly anxious depression, and attracts more attention gradually. Zhi Zi Chi decoction (ZZCD) consisting of Gardenia jasminoides J. Ellis and Glycine max (L.) Merr, is a classic formula in clinic and widely applied in anxiety and depression treatment. However, the underlying mechanisms of regulating microbiota-gut-brain axis in the treatment of anxious depression by oral administration of ZZCD remain elusive. MATERIALS AND METHODS: In this project, we clarified the origin and preparation methods of the Gardenia jasminoides J. Ellis and Glycine max (L.) Merr and examined the chemical ingredients of ZZCD by liquid chromatograph mass spectrometer. Then, corticosterone combined with chronic restraint stress was applied to establish an anxious depression model. After treated with ZZCD standard decoction, based on enzyme-linked immunosorbent assay (ELISA), 16S rRNA technology, high-throughput sequencing, quantitative RT-PCR and fecal microbiota transplantation (FMT), the multiple associations between nucleus accumbens and intestinal flora in anxious depression mice were determined to clarify the mechanism of ZZCD in the treatment of anxiety and depression disorder. RESULTS: We found various substances with antidepressant and antianxiety properties in ZZCD such as rosiridin and oleanolic acid. ZZCD could alleviate depressive and anxiety behaviors in anxious depression mice via regulating the disturbance of gut microbiota. Meanwhile, the bioactive compounds of ZZCD might directly active on neurodevelopment and neuroimmune-related genes. Furthermore, the secretion of prolactin and estrogen, and interfering with mitogen-activated protein kinase (MAPK) and tumor necrosis factor (TNF) signaling pathways were mainly involved in the multi-target therapeutic effects of ZZCD against anxiety and depression. CONCLUSIONS: These findings suggested that ZZCD exerts antidepressant effects pleiotropically through modulating the microbiota-gut-brain.


Assuntos
Medicamentos de Ervas Chinesas , Gardenia , Camundongos , Animais , Depressão/tratamento farmacológico , Depressão/etiologia , Gardenia/química , Corticosterona , Medicamentos de Ervas Chinesas/farmacologia , Medicamentos de Ervas Chinesas/uso terapêutico , Eixo Encéfalo-Intestino , RNA Ribossômico 16S , Sementes/química , Antidepressivos
2.
Front Cell Dev Biol ; 11: 1170059, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37215076

RESUMO

Cervical cancer (CC), the fourth most prevalent type of cancer among women worldwide, is associated with high rates of morbidity and mortality. Due to the long period of latency in CC, most patients are already in the middle to late stages when initially diagnosed, which greatly reduces the clinical cure rate and quality of survival, thus resulting in poor outcomes. In recent years, with continuous exploration in the fields of bioinformatics and molecules, it has been found that ncRNAs, including miRNAs and lncRNAs, without the ability to translate proteins are capable of activating or inhibiting certain signaling pathways by targeting and modulating the level of expression of proteins involved in these signaling pathways. ncRNAs play important roles in assisting with diagnosis, drug administration, and prediction of prognosis during CC progression. As an entry point, the mechanisms of interaction between miRNAs, lncRNAs, and signaling pathways have long been a focus in basic research relating to CC, and numerous experimental studies have confirmed the close relationship of miRNAs, lncRNAs, and signaling pathways with CC development. Against this background, we summarize the latest advances in the involvement of lncRNA- and miRNA-related signaling pathways in the development of CC to provide guidance for CC treatment.

4.
Zootaxa ; 5175(3): 389-393, 2022 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-36095357

RESUMO

The termitophilous genus Discoxenus Wasmann, 1904 (Aleocharini: Compactopediina) is recorded from China for the first time and a new species from Guangdong is described under the name: Discoxenus shenzhenensis sp. nov.


Assuntos
Besouros , Animais , China
5.
Oral Dis ; 28(6): 1528-1538, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33818901

RESUMO

OBJECTIVES: To investigate the effects of radiation on paracellular pathway of rat submandibular glands (SMGs) and the mechanism of increasing secretion following treatment with pilocarpine. MATERIALS AND METHODS: In situ irradiation models of SMGs in Wistar rats were conducted, and the glands were exposed to X-radiation at a single dose of 20 Gy. Pilocarpine was intraperitoneally injected 60 min prior to radiation and continuous 6 days postirradiation for a total of 7 days. Salivary secretion, histological changes, pro-inflammatory cytokines, alterations in tight junctions (TJs), and functional membrane proteins aquaporin-5 (AQP5) and claudin-4 mediated by the muscarinic acetylcholine M3 subtype receptor were determined at 1 and 12 weeks after irradiation. RESULTS: Salivary secretion of the irradiated glands was reduced at 1 and 12 weeks. As well, acinar cell numbers, TJ width, and the levels of M3 receptor and AQP5 were decreased. In contrast, tumor necrosis factor-α, interleukin 6, interleukin 1α, and the expression of the TJ protein claudin-4 were significantly increased in irradiated SMGs. Notably, all the alterations were attenuated by pilocarpine treatment. CONCLUSIONS: Pilocarpine could improve the secretory function of irradiated rat SMGs via reducing inflammation, ameliorating the structural injury of TJs, and attenuating the up-regulation of claudin-4 expression.


Assuntos
Pilocarpina , Glândula Submandibular , Animais , Claudina-4/metabolismo , Claudinas/metabolismo , Claudinas/farmacologia , Pilocarpina/farmacologia , Ratos , Ratos Wistar , Junções Íntimas/metabolismo
6.
Cancer Cell Int ; 21(1): 666, 2021 Dec 14.
Artigo em Inglês | MEDLINE | ID: mdl-34906149

RESUMO

BACKGROUND: C1QTNF6 (CTRP6), a member of the CTRP family, has recently been implied to play a role in the tumorigenesis of for a variety of cancer types. However, the role of C1QTNF6 in oral squamous cell carcinoma (OSCC) and its potential molecular remains unclear. METHODS: C1QTNF6 expression was detected by qRT-PCR and western blot analysis. Lentiviral vectors were constructed to knockdown C1QTNF6 in CaL27 and SCC-9 human OSCC cell lines. Cell viability, cell cycle and cell apoptosis analyses were performed by MTT assay, PI/Annexin V staining, and flow cytometry. The effect of C1QTNF6 knockdown on in vivo tumorigenicity of OSCC cells in vivo was evaluated using nude mouse xenograft tumor model. Downstream signaling mechanisms were identified by microarray and Ingenuity Pathway Analysis. RESULTS: Immunohistochemistry of OSCC tissue and data from TCGA demonstrate that C1QTNF6 was overexpressed in OSCC tissues, and that cellular proliferation was significantly decreased after C1QTNF6 was knockdown in CaL27 and SCC-9 cell lines. Knockdown of C1QTNF6 also resulted in cell cycle arrest at the G2/M phase and enhanced cell apoptosis in in CaL27 and SCC-9 cell lines. Furthermore, knockdown of C1QTNF6 in Cal-27 cells inhibited tumor growth of OSCC in vivo. Microarray analysis revealed that C1QTNF6 silencing resulted in significant alterations of gene expression, with the Acute Phase Response signaling pathway significantly activated following C1QTNF6 silencing. CONCLUSIONS: These results suggest that C1QTNF6 plays an important role in promoting OSCC tumorigenesis, which indicates that C1QTNF6 may comprise a promising therapeutic target for OSCC treatment.

7.
Chin Med ; 16(1): 107, 2021 Oct 21.
Artigo em Inglês | MEDLINE | ID: mdl-34674715

RESUMO

BACKGROUND: Lily Bulb and Rehmannia Decoction (LBRD), is a traditional Chinese formula that has been shown to be safe and effective against depression; however, its material basis and pharmacological mechanisms remain unknown. METHODS: Here, ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF/MS) and high-performance liquid chromatography (HPLC) were used to identify the chemical spectrum and qualitatively identify the major active ingredients in the LBRD standard decoction, respectively. Subsequently, we assessed the behavior, neuronal function and morphology, neurotransmitter levels, hypothalamic-pituitary-adrenal (HPA)-axis associated hormones, inflammatory cytokine levels, and miRNA/mRNA expression alterations in an in vitro/vivo depression model treated by the LBRD standard decoction. Finally, miRNA/mRNA regulatory networks were created through bioinformatics analysis, followed by functional experiments to verify its role in LBRD standard decoction treatment. RESULTS: A total of 32 prototype compounds were identified in the LBRD standard decoction, and the average quality of verbascoside in the fresh lily bulb decoction, fresh raw Rehmannia juice, and the LBRD standard decoction were 0.001264%, 0.002767%, and 0.009046% (w/w), respectively. Administration of the LBRD standard decoction ameliorated chronic unpredictable mild stress (CUMS)-induced depression-like phenotypes and protected PC12 cells against chronic corticosterone (CORT)-induced injury. The levels of neurotransmitter, cytokine, stress hormones and neuronal morphology were disrupted in the depression model, while LBRD standard decoction could work on these alterations. After LBRD standard decoction administration, four differentially expressed miRNAs, rno-miR-144-3p, rno-miR-495, rno-miR-34c-5p, and rno-miR-24-3p, and six differentially expressed mRNAs, Calml4, Ntrk2, VGAT, Gad1, Nr1d1, and Bdnf overlapped in the in vivo/vitro depression model. Among them, miR-144-3p directly mediated GABA synthesis and release by targeting Gad1 and VGAT, and miR-495 negatively regulated BDNF expression. The LBRD standard decoction can reverse the above miRNA/mRNA network-mediated GABA and BDNF expression in the in vivo/vitro depression model. CONCLUSION: Collectively, the multi-components of the LBRD standard decoction altered a series of miRNAs in depression through mediating GABAergic synapse, circadian rhythm, and neurotrophic signaling pathway etc., thereby abolishing inhibitory/excitatory neurotransmitter deficits, recovering the pro-/anti-inflammatory cytokine levels and regulating the HPA-axis hormone secretion to achieve balance of the physiological function of the whole body.

8.
Zootaxa ; 4964(2): zootaxa.4964.2.9, 2021 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-33903523

RESUMO

Wrase and Schmidt (2006) established the genus Sinometrius Wrase Schmidt, 2006 to include the new species S. turnai Wrase Schmidt, 2006 from Hubei province, central China. They placed the new genus in the Paussine tribe Metriini, and compared it to the Nearctic genus Metrius Eschscholtz, 1829. Deuve (2020) described a second species S. jaroslavi Deuve, 2020 from Chongqing province.


Assuntos
Besouros , Animais , China , Besouros/anatomia & histologia , Besouros/classificação , Especificidade da Espécie
9.
Acta Biochim Biophys Sin (Shanghai) ; 53(5): 567-574, 2021 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-33710297

RESUMO

Leucocyte adhesion to the vascular endothelium is a critical event in the early inflammatory response to infection and injury. This process is primarily regulated by the expression of cell adhesion molecules (CAMs) in endothelial cells. It has been well documented that tumor necrosis factor alpha (TNF-α) is a key regulator of CAM expression within this process, but its regulatory mechanism remains controversial. To investigate the scenario within this process, we assessed the role of zipper-interacting protein kinase (ZIPK), a serine/threonine kinase with multiple substrates, in CAM expression. We used TNF-α as inflammatory stimulator and found that ZIPK was integrated into the signaling regulation of TNF-α-mediated CAM expression. In human umbilical vein endothelial cells (HUVECs), TNF-α exposure led to significantly increased expression of both intercellular CAM-1 (ICAM-1) and vascular CAM-1 (VCAM-1), along with an increase in the adhesion of THP-1 monocytes to HUVECs. Simultaneously, ZIPK gene was also up-regulated at the transcription level. These effects were clearly inhibited by the ZIPK-specific inhibitor Tc-DAPK6 or small interfering RNA (siRNA) capable of specifically inhibiting ZIPK expression. We thus suggest that both ZIPK activation and ZIPK gene expression are necessary for TNF-α-mediated CAM expression and leucocyte adhesion. Interestingly, ZIPK inhibition also significantly suppressed TNF-α-induced nuclear factor kappa B (NF-κB) activation, indicating that TNF-α-mediated ZIPK expression functions upstream of NF-κB and CAM expression. We thus propose a TNF-α/ZIPK/NF-κB signaling axis for CAM expression that is necessary for leucocyte adhesion to endothelial cells. Our data in this study revealed a potential molecular target for exploring anti-inflammation drugs.


Assuntos
Proteínas Quinases Associadas com Morte Celular/biossíntese , Molécula 1 de Adesão Intercelular/metabolismo , Leucócitos/metabolismo , Transdução de Sinais/efeitos dos fármacos , Fator de Necrose Tumoral alfa/farmacologia , Molécula 1 de Adesão de Célula Vascular/metabolismo , Adesão Celular/efeitos dos fármacos , Proteínas Quinases Associadas com Morte Celular/genética , Células Endoteliais da Veia Umbilical Humana , Humanos , Molécula 1 de Adesão Intercelular/genética , Transdução de Sinais/genética , Células THP-1 , Molécula 1 de Adesão de Célula Vascular/genética
10.
Eur J Oral Sci ; 129(3): e12785, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33786924

RESUMO

To investigate the effects of radiation on rat submandibular glands and the possible protective effects of ischemic preconditioning, the submandibular glands of Wistar rats were subjected to in situ radiation after ischemic preconditioning. The glands were exposed to X-radiation at a single dose of 20 Gy. Ischemic preconditioning was achieved by three min of ischemia and three min of reperfusion, repeated three times before irradiation. Salivary secretion, histological changes, alterations in tight junctions, and the levels of oxidative stress, pro-inflammatory cytokines, and water secretion proteins mediated by the muscarinic acetylcholine M3 subtype receptor were determined at 1 and 12 weeks post-irradiation. In glands subjected to irradiation only, the secretion, superoxide dismutase activity, tight junction width, acinar cell number, and M3 receptor and aquaporin-5 levels were lower at 1 and 12 weeks than seen in the ischemically preconditioned irradiated glands. In contrast, tumor necrosis factor-α, malondialdehyde, myeloperoxidase activity, and the expression of the tight junction protein claudin-4 were significantly higher in the irradiated only glands. Our study revealed that radiation caused a series of injury-stress responses, especially damage to the water secretion pathway mediated by the M3 receptor that ultimately led to hyposecretion, which might play an important role in the dysfunction of the irradiated only glands. Ischemic preconditioning reduced the radiation-induced injury to submandibular glands and ameliorated salivary hyposecretion.


Assuntos
Precondicionamento Isquêmico , Glândula Submandibular , Animais , Ratos , Ratos Wistar , Receptor Muscarínico M3 , Salivação
11.
Medicine (Baltimore) ; 100(3): e24378, 2021 Jan 22.
Artigo em Inglês | MEDLINE | ID: mdl-33546078

RESUMO

RATIONALE: Primary periampullary duodenal cancer accounts for 3% to 17% of periampullary cancers. There are no previous reports of metachronous primary colon and periampullary duodenal cancer. PATIENT CONCERNS: We present a case of primary periampullary duodenal cancer that occurred metachronously after colon cancer. DIAGNOSES: Imaging and endoscopic examinations, serum tumor marker levels, and pathology confirmed metachronous colon and periampullary duodenal cancer, with 14-month interval between the diagnoses of the 2 malignancies. INTERVENTION: The patient received right hemicolectomy combined with mFOLFOX6 chemotherapy for colon cancer and pancreatoduodenectomy for periampullary duodenal cancer. OUTCOMES: The patient has been followed up for 6 years since the pancreatoduodenectomy and shows no signs of recurrence or metastasis. LESSONS: The risk of developing a second malignancy may be associated with the site of the first tumor. Patients with right colon cancer may have particularly high risk of developing small intestinal cancer, including duodenal cancer. Early detection and active surgical treatments can improve prognosis. Long-term regular follow-up is necessary to detect new malignancies occurring after the diagnosis colon cancer.


Assuntos
Neoplasias Duodenais/patologia , Segunda Neoplasia Primária/patologia , Dor Abdominal/etiologia , Idoso , Antígenos Glicosídicos Associados a Tumores/análise , Antígenos Glicosídicos Associados a Tumores/sangue , Antígeno Carcinoembrionário/análise , Antígeno Carcinoembrionário/sangue , Neoplasias Duodenais/diagnóstico , Humanos , Masculino , Segunda Neoplasia Primária/diagnóstico , Prognóstico , Ultrassonografia/métodos
12.
Nat Biomed Eng ; 5(2): 134-143, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-32958897

RESUMO

The clinical applicability of porcine xenotransplantation-a long-investigated alternative to the scarce availability of human organs for patients with organ failure-is limited by molecular incompatibilities between the immune systems of pigs and humans as well as by the risk of transmitting porcine endogenous retroviruses (PERVs). We recently showed the production of pigs with genomically inactivated PERVs. Here, using a combination of CRISPR-Cas9 and transposon technologies, we show that pigs with all PERVs inactivated can also be genetically engineered to eliminate three xenoantigens and to express nine human transgenes that enhance the pigs' immunological compatibility and blood-coagulation compatibility with humans. The engineered pigs exhibit normal physiology, fertility and germline transmission of the 13 genes and 42 alleles edited. Using in vitro assays, we show that cells from the engineered pigs are resistant to human humoral rejection, cell-mediated damage and pathogenesis associated with dysregulated coagulation. The extensive genome engineering of pigs for greater compatibility with the human immune system may eventually enable safe and effective porcine xenotransplantation.


Assuntos
Sistemas CRISPR-Cas , Engenharia Genética/métodos , Células Germinativas/metabolismo , Sus scrofa/genética , Sus scrofa/virologia , Transplante Heterólogo , Animais , Proteína 9 Associada à CRISPR/genética , Células Cultivadas , Galactosiltransferases/genética , Técnicas de Inativação de Genes , Oxigenases de Função Mista/genética , N-Acetilgalactosaminiltransferases/genética , Sus scrofa/imunologia
13.
Life Sci ; 265: 118746, 2021 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-33181177

RESUMO

AIMS: Lymphatic vessel density (LVD) for the evaluation of tumor metastasis and prognosis remains controversial. The aim of this study was to elucidate the association between tumor cells and lymphatic vessels, and evaluate LVD in oral squamous cell carcinoma (OSCC). MAIN METHODS: 128 OSCC cases were used to determine the expression of lymphatic vessel endothelial hyaluronan receptor 1 (LYVE-1) and vascular endothelial growth factor C (VEGF-C). Mann-Whitney or Kruskal-Wallis tests were employed to analyze the association between clinicopathological data and intratumoral LVD (ILVD), peritumoral LVD (PLVD), and VEGF-C; comparisons between ILVD and PLVD were made with t-test. Correlations between LVD and VEGF-C were analyzed by Spearman's correlation coefficient. Disease-specific survival curves were obtained with Kaplan-Meier method and compared using the log-rank test. Cox multiple regression was used to clarify the independent effect of clinicopathological data on clinical outcome. KEY FINDINGS: Tumor tissues were positively stained with LYVE-1 and VEGF-C. Both tumor metastasis and recurrence were associated with ILVD. A significant association between ILVD and VEGF-C expression was observed (P < 0.05). A significant association between high ILVD and poor disease-specific survival was observed (P < 0.05). SIGNIFICANCE: This study showed that ILVD was significantly associated with increased lymphatic metastasis, tumor recurrence, and reduced disease-specific survival in patients with OSCC. ILVD could be an indicator to predict the prognosis of OSCC.


Assuntos
Vasos Linfáticos/patologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células Escamosas/patologia , China/epidemiologia , Feminino , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Imuno-Histoquímica , Estimativa de Kaplan-Meier , Linfangiogênese , Metástase Linfática/patologia , Masculino , Pessoa de Meia-Idade , Neoplasias Bucais/metabolismo , Neoplasias Bucais/patologia , Recidiva Local de Neoplasia/patologia , Neovascularização Patológica/metabolismo , Prognóstico , Modelos de Riscos Proporcionais , Carcinoma de Células Escamosas de Cabeça e Pescoço/metabolismo , Carcinoma de Células Escamosas de Cabeça e Pescoço/mortalidade , Fator C de Crescimento do Endotélio Vascular/análise , Fator C de Crescimento do Endotélio Vascular/metabolismo , Proteínas de Transporte Vesicular/análise , Proteínas de Transporte Vesicular/metabolismo
14.
Neural Regen Res ; 15(1): 112-119, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31535659

RESUMO

Previous studies have shown that neural stem cell transplantation has the potential to treat Parkinson's disease, but its specific mechanism of action is still unclear. Stromal cell-derived factor-1 and its receptor, chemokine receptor 4 (CXCR4), are important regulators of cell migration. We speculated that the CXCR4/stromal cell-derived factor 1 axis may be involved in the therapeutic effect of neural stem cell transplantation in the treatment of Parkinson's disease. A Parkinson's disease rat model was injected with 6-hydroxydopamine via the right ascending nigrostriatal dopaminergic pathway, and then treated with 5 µL of neural stem cell suspension (1.5 × 104/L) in the right substantia nigra. Rats were intraperitoneally injected once daily for 3 days with 1.25 mL/kg of the CXCR4 antagonist AMD3100 to observe changes after neural stem cell transplantation. Parkinson-like behavior in rats was detected using apomorphine-induced rotation. Immunofluorescence staining was used to determine the immunoreactivity of tyrosine hydroxylase, CXCR4, and stromal cell-derived factor-1 in the brain. Using quantitative real-time polymerase chain reaction, the mRNA expression of stromal cell-derived factor-1 and CXCR4 in the right substantia nigra were measured. In addition, western blot assays were performed to analyze the protein expression of stromal cell-derived factor-1 and CXCR4. Our results demonstrated that neural stem cell transplantation noticeably reduced apomorphine-induced rotation, increased the mRNA and protein expression of stromal cell-derived factor-1 and CXCR4 in the right substantia nigra, and enhanced the immunoreactivity of tyrosine hydroxylase, CXCR4, and stromal cell-derived factor-1 in the brain. Injection of AMD3100 inhibited the aforementioned effects. These findings suggest that the stromal cell-derived factor-1/CXCR4 axis may play a significant role in the therapeutic effect of neural stem cell transplantation in a rat model of Parkinson's disease. This study was approved by the Animal Care and Use Committee of Kunming Medical University, China (approval No. SYXKK2015-0002) on April 1, 2014.

15.
CNS Neurosci Ther ; 26(1): 55-65, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31087449

RESUMO

BACKGROUND: Neural stem cells (NSCs) transplantation is considered a promising treatment for Parkinson's disease. But most NSCs are differentiated into glial cells rather than neurons, and only a few of them survive after transplantation due to the inflammatory environment. METHODS: In this study, neural stem cells (NSCs) and microglial cells both forced with the Nurr1 gene were transplanted into the striatum of the rat model of PD. The results were evaluated through reverse transcription polymerase chain reaction (RT-PCR), Western blot, and immunofluorescence analysis. RESULTS: The behavioral abnormalities of PD rats were improved by combined transplantation of NSCs and microglia, both forced with Nurr1. The number of tyrosine hydroxylase+ cells in the striatum of PD rats increased, and the number of Iba1+ cells decreased compared with the other groups. Moreover, the dopamine neurons differentiated from grafted NSCs could still be detected in the striatum of PD rats after 5 months. CONCLUSIONS: The results suggested that transplantation of Nurr1-overexpressing NSCs and microglia could improve the inhospitable host brain environments, which will be  a new potential strategy for the cell replacement therapy in PD.


Assuntos
Terapia Genética/métodos , Microglia/transplante , Células-Tronco Neurais/transplante , Membro 2 do Grupo A da Subfamília 4 de Receptores Nucleares/genética , Transtornos Parkinsonianos/terapia , Transplante de Células-Tronco/métodos , Anfetamina , Animais , Comportamento Animal , Proteínas de Ligação ao Cálcio/genética , Diferenciação Celular , Corpo Estriado/cirurgia , Neurônios Dopaminérgicos/transplante , Encefalite/terapia , Feminino , Hidroxidopaminas , Masculino , Proteínas dos Microfilamentos/genética , Membro 2 do Grupo A da Subfamília 4 de Receptores Nucleares/biossíntese , Transtornos Parkinsonianos/induzido quimicamente , Transtornos Parkinsonianos/psicologia , Ratos , Ratos Sprague-Dawley
16.
J Cell Mol Med ; 23(10): 7021-7028, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31430030

RESUMO

Depression is the most frequent psychiatric disorder in the world. Recent evidence has shown that stress-induced GABAergic dysfunction in the nucleus accumbens (NAc) contributed to the pathophysiology of depression. However, the molecular mechanisms underlying these pathological changes remain unclear. In this study, mice were constantly treated with the chronic unpredictable mild stress (CUMS) till showing depression-like behaviours expression. GABA synthesis, release and uptake in the NAc tissue were assessed by analysing the expression level of genes and proteins of Gad-1, VGAT and GAT-3 by qRT-PCR and Western blotting. The miRNA/mRNA network regulating GABA was constructed based on the bioinformatics prediction software and further validated by dual-luciferase reporter assay in vitro and qRT-PCR in vivo, respectively. Our results showed that the expression level of GAT-3, Gad-1 and VGAT mRNA and protein significantly decreased in the NAc tissue from CUMS-induced depression-like mice than that of control mice. However, miRNA-144-3p, miRNA-879-5p, miR-15b-5p and miRNA-582-5p that directly down-regulated the expression of Gad-1, VGAT and GAT-3 were increased. In the mRNA/miRNA regulatory GABA network, Gad-1 and VGAT were directly regulated by binding seed sequence of miR-144-3p, and miR-15b-5p, miR-879-5p could be served negative post-regulators by binding to the different sites of VGAT 3'-UTR. Chronic stress causes the impaired GABA synthesis, release and uptake by up-regulating miRNAs and down-regulating mRNAs and proteins, which may reveal the molecular mechanisms for the decreased GABA concentrations in the NAc tissue of CUMS-induced depression.


Assuntos
Comportamento Animal , Transtorno Depressivo/fisiopatologia , Núcleo Accumbens/metabolismo , Núcleo Accumbens/fisiopatologia , Ácido gama-Aminobutírico/metabolismo , Animais , Doença Crônica , Transtorno Depressivo/etiologia , Transtorno Depressivo/genética , Neurônios GABAérgicos/metabolismo , Regulação da Expressão Gênica , Modelos Lineares , Camundongos , MicroRNAs/genética , MicroRNAs/metabolismo , Rede Nervosa/metabolismo , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Reprodutibilidade dos Testes , Estresse Psicológico/complicações , Estresse Psicológico/genética , Ácido gama-Aminobutírico/biossíntese
17.
FASEB J ; 33(8): 9062-9074, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31180722

RESUMO

The paracellular gap formed by endothelial cell (EC) contraction is fundamental for endothelium permeability, but the mechanism underlying EC contraction has yet to be determined. Here, we identified the zipper-interacting protein kinase (ZIPK) as the kinase for EC contraction and myosin light chain (MLC) phosphorylation. Inhibition of ZIPK activity by pharmacological inhibitors and small interfering RNAs led to a significant decrease in the mono- and diphosphorylation of MLCs along with a contractile response to thrombin, suggesting an essential role of ZIPK in EC paracellular permeability. To assess the role of ZIPK in vivo, we established mouse lines with conditional deletion of Zipk gene. The endothelium-specific deletion of Zipk led to embryonic lethality, whereas the UBC-CreERT2-mediated deletion of Zipk by tamoxifen induction at adulthood caused no apparent phenotype. The induced deletion of Zipk significantly inhibited ischemia-reperfusion-induced blood-brain barrier dysfunction and neuronal injuries from middle cerebral artery occlusion and reperfusion, as evidenced by reduced infarct and edema volume, attenuated Evans blue dye leakage, and improved neuronal behavior. We thus concluded that ZIPK and its phosphorylation of MLC were required for EC contraction and ischemic neuronal injuries. ZIPK may be a prospective therapeutic target for stroke.-Zhang, Y., Zhang, C., Zhang, H., Zeng, W., Li, S., Chen, C., Song, X., Sun, J., Sun, Z., Cui, C., Cao, X., Zheng, L., Wang, P., Zhao, W., Zhang, Z., Xu, Y., Zhu, M., Chen, H. ZIPK mediates endothelial cell contraction through myosin light chain phosphorylation and is required for ischemic-reperfusion injury.


Assuntos
Proteínas Quinases Associadas com Morte Celular/metabolismo , Células Endoteliais/metabolismo , Cadeias Leves de Miosina/metabolismo , Traumatismo por Reperfusão/metabolismo , Animais , Barreira Hematoencefálica/metabolismo , Permeabilidade Capilar , Linhagem Celular , Proteínas Quinases Associadas com Morte Celular/deficiência , Proteínas Quinases Associadas com Morte Celular/genética , Células Endoteliais/citologia , Feminino , Células Endoteliais da Veia Umbilical Humana/metabolismo , Humanos , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Fenótipo , Fosforilação , Gravidez , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Traumatismo por Reperfusão/genética , Traumatismo por Reperfusão/patologia
18.
Neuropsychiatr Dis Treat ; 15: 685-700, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30936699

RESUMO

INTRODUCTION: Major depressive disorder (MDD) is a recurrent, devastating mental disorder, which affects >350 million people worldwide, and exerts substantial public health and financial costs to society. Thus, there is a significant need to discover innovative therapeutics to treat depression efficiently. Stress-induced dysfunction in the subtype of neuronal cells and the change of synaptic plasticity and structural plasticity of nucleus accumbens (NAc) are implicated in depression symptomology. However, the molecular and epigenetic mechanisms and stresses to the NAc pathological changes in depression remain elusive. MATERIALS AND METHODS: In this study, treatment group mice were treated continually with the chronic unpredictable mild stress (CUMS) until expression of depression-like behaviors were found. Depression was confirmed with sucrose preference, novelty-suppressed feeding, forced swimming, and tail suspension tests. We applied high-throughput RNA sequencing to assess microRNA expression and transcriptional profiles in the NAc tissue from depression-like behaviors mice and control mice. The regulatory network of miRNAs/mRNAs was constructed based on the high-throughput RNA sequence and bioinformatics software predictions. RESULTS: A total of 17 miRNAs and 10 mRNAs were significantly upregulated in the NAc of CUMS-induced mice with depression-like behaviors, and 12 miRNAs and 29 mRNAs were downregulated. A series of bioinformatics analyses showed that these altered miRNAs predicted target mRNA and differentially expressed mRNAs were significantly enriched in the MAPK signaling pathway, GABAergic synapse, dopaminergic synapse, cytokine-cytokine receptor interaction, axon guidance, regulation of autophagy, and so on. Furthermore, dual luciferase report assay and qRT-PCR results validated the miRNA/mRNA regulatory network. CONCLUSION: The deteriorations of GABAergic synapses, dopaminergic synapses, neurotransmitter synthesis, as well as autophagy-associated apoptotic pathway are associated with the molecular pathological mechanism of CUMS-induced depression.

19.
Head Neck ; 41(5): 1468-1474, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30633409

RESUMO

BACKGROUND: To evaluate the prognostic value of preoperative neutrophil lymphocyte ratio (NLR) and platelet lymphocyte ratio (PLR) in oral, pharyngeal, and lip cancer for survival and relapse. METHODS: Clinic-pathologic and hematological records were retrospectively retrieved. Patients completed follow-up period were included for survival and relapse analysis. RESULTS: The preoperative NLR value was a prognostic factor for both overall survival and relapse-free survival. The high NLR group demonstrated higher total relapse rate, higher local relapse rate, and higher relapse rate within 12 months. However, the preoperative PLR did not associate with survival or relapse. CONCLUSIONS: The preoperative NLR, not PLR, is an independent prognostic indicator of survival. It also exhibits predictive value for relapse, particularly early relapse within 12 months. The preoperative NLR value might be recommended as a useful tool for predicting the outcomes and stratifying patients for different management strategies.


Assuntos
Biomarcadores Tumorais/sangue , Neoplasias Labiais/mortalidade , Neoplasias Bucais/mortalidade , Recidiva Local de Neoplasia/sangue , Neoplasias Faríngeas/mortalidade , Adulto , Idoso , China , Estudos de Coortes , Intervalo Livre de Doença , Feminino , Hospitais Universitários , Humanos , Neoplasias Labiais/patologia , Neoplasias Labiais/cirurgia , Contagem de Linfócitos , Masculino , Pessoa de Meia-Idade , Neoplasias Bucais/patologia , Neoplasias Bucais/cirurgia , Recidiva Local de Neoplasia/diagnóstico , Neutrófilos , Neoplasias Faríngeas/patologia , Neoplasias Faríngeas/cirurgia , Contagem de Plaquetas , Valor Preditivo dos Testes , Cuidados Pré-Operatórios/métodos , Estudos Retrospectivos , Análise de Sobrevida
20.
Zootaxa ; 4712(1): zootaxa.4712.1.6, 2019 Dec 18.
Artigo em Inglês | MEDLINE | ID: mdl-32230698

RESUMO

Laena hongqiao sp. n. is described from Shanghai. This discovery expands the provincial distribution of the huge tenebrionid genus Laena in mainland China, and enriches the knowledge of the species diversity in Shanghai. A key modified from Schawaller 2008 and Wei Ren 2018 is provided to include this new species.


Assuntos
Besouros , Distribuição Animal , Animais , China
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