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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Studies on dendritic cells in multiple sclerosis and experimental allergic encephalomyelitis /

Huang, Yu-Min, January 1900 (has links)
Diss. (sammanfattning) Stockholm : Karol. inst. / Härtill 5 uppsatser.
2

Bovine testicular cells in vitro: establishment of primary cultures and investigations of secretory functions : a thesis presented for the degree of Doctor of Philosophy in the University of Adelaide

Hayes, Marianne Kay. January 1986 (has links) (PDF)
Includes bibliographical references (leaves 98-128). Investigates protein secretion by bovine Sertoli cells in culture. Cultures were obtained from bulls at all stages of post natal development and from sexually mature animals.
3

Functional studies on vibrissal slowly-adapting mechanoreceptors.

January 1995 (has links)
by Senok, Silas Solomon. / Thesis (Ph.D.)--Chinese University of Hong Kong, 1995. / Includes bibliographical references (leaves 194-217). / ACKNOWLEDGEMENT --- p.ii / ABSTRACT --- p.v / Chapter 1 --- INTRODUCTION AND OBJECTIVES --- p.1 / Chapter 2 --- LITERATURE REVIEW --- p.8 / Chapter 2.1 --- Classification of Cutaneous Mechanoreceptors --- p.8 / Chapter 2.2 --- Characteristics of Some Mammalian Cutaneous Mechanoreceptors --- p.21 / Chapter 2.3 --- Vibrissae --- p.30 / Chapter 2.4 --- Mechanosensory Transduction --- p.40 / Chapter 2.5 --- The Merkel Cell Controversy --- p.44 / Chapter 2.6 --- Intracellular Calcium Mobilisation --- p.53 / Chapter 3 --- METHODS --- p.59 / Chapter 3.1 --- The Isolated Vibrissal Preparation --- p.59 / Chapter 3.2 --- Experimental Protocol --- p.77 / Chapter 3.3 --- Data Analysis --- p.79 / Chapter 4 --- RESULTS --- p.82 / Chapter 4.1 --- Characterisation of The Receptors --- p.82 / Chapter 4.2 --- Stability And Viability of The Preparation --- p.94 / Chapter 4.3 --- Pharmacologic Studies --- p.103 / Chapter 5 --- DISCUSSION --- p.160 / Chapter 5.1 --- Outcome of Project --- p.160 / Chapter 5 2 --- The Isolated Vibrissal Preparation --- p.162 / Chapter 5.3 --- The Vibrissal Slowly Adapting Mechanoreceptors --- p.165 / Chapter 5 4 --- Mechanism of Chloroquine Inhibtion of Merkel Cell Receptors --- p.170 / Chapter 5.5 --- Evidence For CICR In Merkel Cell Endings --- p.175 / Chapter 5.6 --- Mechano-Electric Transduction In Merkel Cell Receptors --- p.182 / Chapter 5.7 --- Transduction in St II Nerve Terminals --- p.190 / Chapter 5.8 --- What Next? --- p.192 / Chapter 5.9 --- Conclusion --- p.193 / REFERENCES --- p.194
4

THE IN VITRO METABOLISM OF POLYCHLORINATED BIPHENYLS: SPECIES VARIATION.

SCHNELLMANN, RICKY GENE. January 1984 (has links)
Polychlorinated biphenyls (PCBs) are ubiquitious environmental pollutants that cause a number of diverse toxicities. The chemical stability of PCBs is responsible for their persistence in the environment, while their lipid solubility and resistance to biotransformation results in their accumulation in a number of animal species. The rate of PCB elimination is dependent on the ability of each animal species to metabolize a particular PCB congener. The goal of this project was to determine if in vitro liver microsomal metabolism studies could predict in vivo metabolism and to examine the reasons for the species variation in PCB metabolism. Kinetic constants were developed from in vitro metabolism studies using 4,4'-dichlorobiphenyl (4-DCB), 2,2',3,3',6,6'-hexachlorobiphenyl (236-HCB) and 2,2',4,4',5,5'-hexachlorobiphenyl (245-HCB) and liver microsomes from the human, dog, monkey and rat. An excellent correlation between the in vitro Vmax values and the in vivo hepatic clearance values was obtained. Human microsomal PCB metabolism was most similar to the rat. The in vitro human results were consistent with available in vivo data. All species produced the same major metabolites. The major metabolite of 4-DCB was 4,4'-dichloro-3-biphenylol and the two major metabolites of 236-HCB were 2,2',3,3',6,6'-hexachloro-4-biphenylol and 2,2',3,3',6,6'-hexachloro-5-biphenylol. The dog was the only species found to metabolize 245-HCB in vitro. Metabolites of 245-HCB were not identified. Studies of metabolism, covalent binding of PCB-equivalents to microsomal protein and metabolites demonstrated that the dog can metabolize PCBs more readily than other species because the dog has an alternate pathway of PCB metabolism. This pathway is either not found in other species or only found to a limited extent. Furthermore, an arene oxide does not seem to be involved in this alternative pathway. In summary, for certain classes of compounds in vitro to in vivo extrapolation is possible and may prove to be very useful in predicting the appropriate animal model for humans. Secondly, the dog appears to be quite different in its metabolism of PCBs in that it may have an alternate route of metabolism not involving an arene oxide.
5

Bovine testicular cells in vitro: establishment of primary cultures and investigations of secretory functions : a thesis presented for the degree of Doctor of Philosophy in the University of Adelaide / by Marianne Kay Hayes

Hayes, Marianne Kay January 1986 (has links)
Includes bibliographical references (leaves 98-128). / iv, 128 leaves, [22] leaves of plates : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Investigates protein secretion by bovine Sertoli cells in culture. Cultures were obtained from bulls at all stages of post natal development and from sexually mature animals. / Thesis (Ph.D.)--University of Adelaide, Dept. of Animal Sciences, 1987
6

Characterization of adenosine receptors on rat peritoneal mast cells.

January 2005 (has links)
Wong Lai Lok. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2005. / Includes bibliographical references (leaves 162-173). / Abstracts in English and Chinese. / Abstract --- p.ii / Acknowledgements --- p.vi / Publications --- p.vii / Abbreviations --- p.viii / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1. --- Historical Background --- p.2 / Chapter 1.2. --- Heterogeneity of mast cells --- p.3 / Chapter 1.3. --- Mast cell mediators --- p.5 / Chapter 1.3.1. --- Performed and granule associated mediators --- p.5 / Chapter 1.3.2. --- Newly synthesized mediators --- p.8 / Chapter 1.3.3. --- Cytokines --- p.10 / Chapter 1.4. --- Mast cell activation --- p.10 / Chapter 1.4.1. --- Aggregation of IgE Receptors (FcεRI) --- p.10 / Chapter 1.4.2. --- Activation of Phospholipase C --- p.11 / Chapter 1.4.3. --- Activation of Adenylate cyclase --- p.13 / Chapter 1.5. --- Adenosine --- p.14 / Chapter 1.5.1. --- Adenosine receptors --- p.14 / Chapter 1.5.2. --- Selective agonists and antagonists --- p.17 / Chapter 1.5.3. --- Physiological and pathological roles of adenosine --- p.20 / Chapter 1.6. --- Role of adenosine receptors in mast cell activation --- p.21 / Chapter 1.7. --- Aims of the study --- p.23 / Chapter Chapter 2 --- Materials and Methods --- p.30 / Chapter 2.1. --- Materials --- p.31 / Chapter 2.1.1. --- Mast cells secretagogues --- p.31 / Chapter 2.1.2. --- Anti-allergic compounds --- p.31 / Chapter 2.1.3. --- Adenosine receptor agonists and antagonists --- p.31 / Chapter 2.1.4. --- Materials for buffers --- p.32 / Chapter 2.1.5. --- Materials for rat sensitization --- p.32 / Chapter 2.1.6. --- Materials for histamine assay --- p.33 / Chapter 2.1.7. --- Miscellaneous --- p.33 / Chapter 2.2. --- Buffers and stock solutions --- p.34 / Chapter 2.2.1 --- Buffer ingredients --- p.34 / Chapter 2.2.2 --- Stock solutions --- p.34 / Chapter 2.3. --- Source of mast cells --- p.35 / Chapter 2.3.1. --- Animals --- p.35 / Chapter 2.3.2. --- Sensitization of animals --- p.35 / Chapter 2.3.3. --- Isolation of rat peritoneal mast cells --- p.35 / Chapter 2.3.4. --- Mast cells purification --- p.36 / Chapter 2.3.5. --- Cell counting --- p.36 / Chapter 2.4. --- General protocol for histamine release --- p.37 / Chapter 2.4.1. --- Histamine assay --- p.37 / Chapter 2.4.2. --- Antagonist studies --- p.38 / Chapter 2.4.3. --- Determination of histamine contents --- p.38 / Chapter 2.4.4. --- Calculation of histamine levels --- p.39 / Chapter 2.5. --- Statistical analysis --- p.40 / Chapter Chapter 3 --- "Effects of adenosine, adenosine deaminase and adenosine receptor agonists on mast cell activation" --- p.42 / Chapter 3.1. --- Introduction --- p.43 / Chapter 3.2. --- Materials and methods --- p.44 / Chapter 3.3. --- Results --- p.45 / Chapter 3.3.1. --- Effects of adenosine on anti-IgE induced histamine release in HEPES buffer --- p.45 / Chapter 3.3.2. --- Effects of NECA on anti-IgE induced histamine release in HEPES buffer --- p.46 / Chapter 3.3.3. --- Effects of CCPA on anti-IgE induced histamine release in HEPES buffer --- p.47 / Chapter 3.3.4. --- Effects of CPA on anti-IgE induced histamine release in HEPES buffer --- p.47 / Chapter 3.3.5. --- Effects of CGS21680 on anti-IgE induced histamine release in HEPES buffer --- p.48 / Chapter 3.3.6. --- Effects of Cl-MECA on anti-IgE induced histamine release in HEPES buffer --- p.49 / Chapter 3.3.7. --- Effects of adenosine deaminase on anti-IgE induced histamine release from rat peritoneal mast cells --- p.50 / Chapter 3.3.8. --- Effects of NECA on anti-IgE induced histamine release with and without adenosine deaminase --- p.50 / Chapter 3.3.9. --- Effects of Cl-MECA on anti-IgE induced histamine release with and without adenosine deaminase --- p.53 / Chapter 3.3.10. --- Effects of CV1808 on anti-IgE induced histamine release in HEPES buffer --- p.55 / Chapter 3.4. --- Discussion --- p.76 / Chapter 3.5. --- Conclusion --- p.83 / Chapter Chapter 4 --- Effects of adenosine receptor antagonists on mast cell activation --- p.88 / Chapter 4.1. --- Introduction --- p.89 / Chapter 4.2. --- Materials and methods --- p.90 / Chapter 4.3. --- Results --- p.91 / Chapter 4.3.1. --- Effects of A1 receptor antagonist DPCPX on modulations of anti-IgE induced histamine release by adenosine receptor agonists --- p.91 / Chapter 4.3.2. --- Effects of A2A receptor antagonist ZM241385 on modulations of anti-IgE induced histamine release by adenosine receptor agonists --- p.91 / Chapter 4.3.3. --- Effects of A2B receptor antagonist MRS 1706 on modulations of anti-IgE induced histamine release by adenosine receptor agonists --- p.92 / Chapter 4.3.4. --- Effects of A3 receptor antagonist VUF5574 on modulations of anti-IgE induced histamine release by adenosine receptor agonists --- p.93 / Chapter 4.3.5. --- Further characterization of adenosine mediated potentiation of anti-IgE histamine release using VUF5574 and ZM241385 --- p.93 / Chapter 4.3.6. --- Effects of theophylline on anti-IgE induced percentage potentiation in HEPES buffer --- p.95 / Chapter 4.4. --- Discussion --- p.130 / Chapter 4.5. --- Conclusion --- p.135 / Chapter Chapter 5 --- Further characterization of the effects of adenosine on mast cells --- p.138 / Chapter 5.1. --- Introduction --- p.139 / Chapter 5.2. --- Materials and methods --- p.141 / Chapter 5.3. --- Results --- p.142 / Chapter 5.3.1. --- Effects of anti-IgE induced histamine release in calcium free and HEPES buffers --- p.142 / Chapter 5.3.2. --- Effects of adenosine on anti-IgE induced histamine release in calcium free buffer --- p.143 / Chapter 5.3.3. --- Effects of adenosine deaminase on compound48/80 induced histamine release from rat peritoneal mast cells --- p.143 / Chapter 5.3.4. --- Effects of adenosine on compound 48/80 induced histamine release in HEPES buffer --- p.144 / Chapter 5.3.5. --- Effects of adenosine deaminase on A23187 induced histamine release from rat peritoneal mast cells --- p.144 / Chapter 5.3.6. --- Effects of adenosine on calcium ionophore A23187 induced histamine release in HEPES buffer --- p.145 / Chapter 5.3.7. --- Effects of adenosine receptor antagonists on inosine mediated enhancement of anti-IgE induced histamine release --- p.145 / Chapter 5.4. --- Discussion --- p.157 / Chapter 5.5. --- Conclusion --- p.160 / References --- p.162
7

THE DISPOSITION AND BIOTRANSFORMATION OF POLYCHLORINATED BIPHENYL CONGENERS IN ISOLATED RAT HEPATOCYTES.

VICKERS, ALISON ELIZABETH MARY. January 1983 (has links)
The metabolism and distribution of three commonly occurring PCB congeners, 4,4'-dichlorobiphenyl (4-DCB), 2,2',3,3',6,6'-hexachlorobiphenyl (236-HCB) and 2,2',4,4',5,5'-hexachlorobiphenyl (245-HCB), each displaying different structural features, were investigated at their principal metabolic site, the hepatocyte. Hepatocytes, isolated from male Sprague-Dawley rats (200-250 g) by collagenase perfusion, were suspended in medium 199 and maintained at 37°C in a gyratory shaker. The radiolabeled ¹⁴C-PCB congeners were added to the hepatocyte suspensions as a DMSO-albumin mixture. Each congener was rapidly taken up by the cells with less than 10% of the congener remaining in the medium. The congeners accumulated within the hepatocytes without being fully metabolized. Metabolism followed first order Michaelis-Menten kinetics for 20 min and plateaued by 90 min at which point only 32% of 4-DCB (0.01-100 uM) and 60% of 236-HCB (0.01-100 uM) was metabolized, while 245-HCB (0.1-200 uM) was not metabolized. Readdition of congener once metabolism had plateaued resulted in a reinitiation of metabolism with the same proportion of metabolites produced indicating that product inhibition was not the cause for the plateau. A partitioning of the PCB congeners within subcellular compartments and binding to cytosolic proteins influenced the extent of metabolism by decreasing the availability of congener for the drug metabolizing enzymes, cytochrome P-450. Spectral binding studies further revealed that the ability of a PCB congener to bind to the cytochrome P-450 system correlated with the extent of metabolism observed, with 236-HCB 4-DCB 245-HCB. The metabolic potential of the PCB congeners was influenced by both the affinity of the congener for cytochrome P-450 and the partitioning of congener within the hepatocyte, and not by product inhibition.
8

Apoptotic markers in ejaculated human spermatozoa.

Brooks, Nicole Lisa January 2005 (has links)
The role of male germ cell death in spermatogenesis is an important one as it removes dysfunctional or genetically damaged germ cells and is necessary to maintain an optimal germ cell to Sertoli cell ratio. The formation of the bloodtestis barrier requires the elimination of excessive germ cells and a surge of germ cell apoptosis occurs prior to puberty regulating the ratio of germ cells to Sertoli cells. The aim of this study was to evaluate the presence of four apoptotic markers on sperm from patients with various grades of fertility using flow cytometry. Furthermore, any correlations between the apoptotic marker assays and the standard semen analysis results were identified. This study compares early and late parameters of apoptosis with morphological features in spermatozoa in the same samples. The three sample groups were identified as: teratozoospermic [G-pattern] (n=26), teratozoospermic [P-pattern] (n=98) and oligoteratozoospermic [Ppattern] (n=36). Standard semen analysis was conducted on the semen samples according to the WHO guidelines. Four apoptotic marker assays using flow cytometry was applied in this study to examine the apoptotic alterations in ejaculate sperm. These assays included the Annexin-V staining for the determination of phosphatidylserine exposure, APO-Direct to identify DNA fragmentation, caspase-3 to detect expression of this active protease during early apoptosis and Fas expression. For the Annexin-V and caspase-3 assays, statistically significant differences (P&lt / 0.05) were evident between the three groups. No significant differences (P&gt / 0.05) were found between the groups with respect to the APO-Direct assay. A significant difference (P&lt / 0.05) was found when comparing the teratozoospermic [G-pattern] group and the oligoteratozoospermic [P-pattern] group for the Fas assay. A strong positive correlation was evident between the Fas and the caspase-3 assays in the teratozoospermic [G-pattern] group. For the teratozoospermic [P-pattern group] the following positive correlations existed between the APO-Direct and the Fas assays, APO-Direct and caspase-3 assays and between caspase-3 and Fas assays. The only strong positive correlation was between the caspase-3 and APO-Direct assays in the oligoteratozoospermic [P-pattern] group. The presence of spermatozoa showing microscopic features resembling apoptosis has been identified in ten human ejaculate samples per sample group. Electron microscopy was used to identify morphological features of apoptosis in these human sperm samples. Classical apoptosis as observed in diploid cells could be identified in sperm and these included: loose fibrillarmicrogranular chromatin network, presence of vacuoles in the nuclear chromatin, membranous bodies within the vacuoles of the chromatin, partially disrupted nuclear membranes, plasma membrane protuberances and apoptotic bodies containing cytoplasmic vacuoles and dense masses. This study has confirmed that semen samples with abnormal semen parameters exhibit the presence of apoptotic markers in sperm. The identification of apoptotic markers on the sperm suggests that abnormalities occur during their developmental process, however, the exact mechanism thereof remains unclear. These findings may suggest that certain apoptotic markers may be an indicator of abnormal sperm function and possibly indicative of male infertility.
9

The roles of Toll-like receptor 2 on human mast cell activation. / Toll樣受體2在人類肥大細胞的作用 / Toll yang shou ti 2 zai ren lei fei da xi bao de zuo yong

January 2012 (has links)
肥大細胞是過敏和炎症的主要效應細胞,其激活機制包括了IgE依賴性和非IgE依賴性的激活。IgE依賴性激活是指抗原與IgE的高親和力受體FcεRI上的IgE結合,促使FcεRI受體交聯而引起變態反應。其它的肥大細胞促分泌素如神經肽P物質,能夠激活百日咳毒素(PTX)敏感性的G蛋白而介導非IgE依賴性的細胞激活。最近的研究指出,肥大細胞表達Toll樣受體家族,提示肥大細胞也積極參與固有免疫反應。本研究主要探討Toll樣受體2激動劑肽聚糖(PGN)和合成激動劑Pam3CSK4對人類肥大細胞的影響,及其對抗原和P物質引起的肥大細胞激活的調控。 / Toll樣受體2激動劑本身不引起人類肥大細胞脫顆粒,但抑制抗原和P物質引起的肥大細胞脫顆粒。鈣動員是引起肥大細胞脫顆粒的關鍵因素。Pam3CSK4通過抑制抗原和P物質鈣動員來抑制肥大細胞脫顆粒。PGN只抑制抗原鈣動員,卻對P物質沒有影響。 / PGN和Pam3CSK4皆刺激人類肥大細胞釋放白細胞介素8(IL-8)和腫瘤壞死因子α(TNF-α)。Pam3CSK4通過激活G₀蛋白,Erk,Ca²⁺/calcineurin/NFAT和TAK信號通路引起肥大細胞釋放IL-8。其間,Go蛋白的激活介導Erk和Ca²⁺/calcineurin/NFAT信號通路的活化。與Pam3CSK4不同,PGN通過激活JNK, Erk, PI3K和TAK信號通路引起肥大細胞釋放IL-8。此外,雖然PTX敏感性G蛋白不影響PGN刺激引起的IL-8釋放,它卻抑制PGN刺激引起的Erk激活。 / Pam3CSK4與抗原協同作用刺激肥大細胞釋放IL-8和TNF-α,PGN與抗原卻並無協同作用。PGN與P物質協同作用刺激肥大細胞釋放IL-8和TNF-α,Pam3CSK4卻幹擾P物質的作用。在Pam3CSK4與抗原的協同作用中,Erk,Ca²⁺/calcineurin/NFAT和TAK信號通路起重要作用。PGN與P物質的協同作用則通過Erk, Ca²⁺/calcineurin/NFAT,NF-κB,PI3K和TAK這五條信號通路。 / 本研究表明,不同的Toll樣受體2激動劑能通過不同的作用機制介導和調控人類肥大細胞的反應。同時,我們首次發現G₀蛋白參與人類肥大細胞Toll樣受體2信號的激活。由於Toll樣受體2與感染和炎症息息相關,繼續研究Toll樣受體2激活對人類肥大細胞的調控機制,有助於促進開發抗感染和炎症藥物,意義深遠。 / Mast cells are activated by IgE-dependent and -independent mechanisms and play a pivotal role in both allergic and inflammatory responses. The classical IgE-dependent mechanism involves the binding of antigens to the receptor-bound IgE and crosslinking of the high-affinity receptor for IgE (FcεRI). For the poly-basic secretagogues, such as the neuropeptide substance P, they can directly stimulate pertussis toxin (PTX)-sensitive G proteins in mast cells in an IgE-independent manner. Recent studies also discover the expression of the Toll-like receptors on mast cells, indicating that mast cells are active players in innate immunity against a wide variety of pathogens. In this study, we investigated the effects of Toll-like receptor 2 (TLR2) ligands peptidoglycan (PGN) and Pam3CSK4 on human mast cell line LAD2 cells activation and the modulatory effects of these TLR2 ligands on LAD2 cells activities in response to anti-IgE and substance P. / TLR2 ligands did not cause significant degranulation on their own, but inhibited anti-IgE and substance P induced degranulation. Pam3CSK4 acted through TLR2, while the inhibitory effect of PGN involved other non-TLR2 related mechanisms. Pretreatment of Pam3CSK4 inhibited calcium mobilization induced by anti-IgE and substance P. However, pretreatment of PGN only inhibited calcium mobilization induced by anti-IgE, but failed to demonstrate similar effect on substance P. / Both TLR2 ligands triggered the release of IL-8 and TNF-α from LAD2 cells in TLR2-dependent manner. G protein, MAPKs, Ca²⁺/calcineurin/NFAT, PI3K/Akt and TAK pathways were differentially activated by PGN and Pam3CSK4. Release of IL-8 induced by Pam3CSK4 required the involvement of G₀ protein, Erk, Ca²⁺/calcineurin/ NFAT and TAK signaling pathways, but not PI3K/Akt and NF-κB. Meanwhile, G₀ protein was required for the upstream regulation of Erk and Ca²⁺/calcineurin/NFAT signaling cascades activated by Pam3CSK4. In contrast to Pam3CSK4, IL-8 release induced by PGN required the activation of JNK, Erk, PI3K and TAK signaling pathways, but not Ca²⁺ /calcineurin/NFAT and NF-κB. PTX-sensitive Gi/o protein was also involved in PGN induced Erk phosphorylation without influencing IL-8 release. / Pam3CSK4 acted in synergy with anti-IgE to augment the release of IL-8 and TNF-α, but PGN failed to demonstrate similar effect. In contrast, PGN acted in synergy with substance P, while co-stimulation of Pam3CSK4 with substance P failed to demonstrate similar synergism. Erk, Ca²⁺/calcineurin/NFAT and TAK signaling pathways were required for the synergistic action of Pam3CSK4 combined with anti-IgE, while synergistic release of IL-8 induced by PGN and substance P required the activation of Ca²⁺/calcineurin/NFAT, Erk, NF-κB, PI3K, and TAK signaling networks and was enhanced by Ca²⁺/calcineurin/NFAT and NF-κB signaling cascades in LAD2 cells, although NF-κB was not required for IL-8 release induced by PGN or substance P. / These ndings suggest that activation of human mast cells LAD2 can be differentially modified by different TLR2 ligands via distinct signaling pathways. We identify for the first time the involvement of G₀ protein in TLR2 signaling transduction in human mast cells. Further studies of the regulation of mast cells by Toll-like receptors will provide important opportunities for the therapeutic manipulation of infection and allergic diseases. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Detailed summary in vernacular field only. / Yu, Yangyang. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2012. / Includes bibliographical references (leaves 205-233). / Abstract also in Chinese. / Abstract (English) --- p.i / Abstract (Chinese) --- p.iv / Acknowledgements --- p.vi / Publication --- p.vii / Abbreviations --- p.viii / Contents --- p.x / Chapter 1 --- Introduction --- p.1 / Origin of mast cells --- p.1 / Cytokines and growth factors required for mast cells development --- p.3 / Mediators release from mast cell --- p.7 / Mast cells activation by classical IgE-dependent pathway --- p.13 / Substance P and mast cells --- p.20 / Mast cells in host defense --- p.23 / Toll-like receptors and mast cells --- p.25 / Aims --- p.31 / Chapter 2 --- Materials and Methods --- p.33 / Materials --- p.33 / Methods --- p.42 / LAD2 mast cells culture --- p.42 / Degranulation assay --- p.43 / IL-8 and TNF-α measurement --- p.44 / Reverse Transcriptase Polymerase Chain Reaction (RT-PCR) --- p.44 / Western Blotting --- p.46 / Calcium mobilization assay --- p.47 / Flow cytometry assay --- p.48 / siRNA Transfection --- p.48 / Statistical analysis --- p.49 / Chapter 3 --- Functional Studies of Toll-Like Receptor 2 on Human Mast Cells Activation --- p.51 / Experimental conditions --- p.56 / Results --- p.57 / Discussions --- p.62 / Chapter 4 --- Modulatory Effects of Toll-Like Receptor 2 on Human Mast Cells in Response to Anti-IgE and the Signaling Pathways Involved in the Events --- p.80 / Experimental conditions --- p.92 / Results --- p.93 / Discussions --- p.102 / Chapter 5 --- Modulatory Effects of Toll-Like Receptor 2 on Human Mast Cells Activation in Response to Substance P and Signaling Pathways Involved in the Event --- p.136 / Experimental conditions --- p.140 / Results --- p.141 / Discussions --- p.152 / Chapter 6 --- General Discussion --- p.188 / Chapter 7 --- References --- p.205
10

Characterisation and pharmacological studies on mast cells culture from human blood. / CUHK electronic theses & dissertations collection

January 2004 (has links)
Wang Xiansong. / "February 2004." / Thesis (Ph.D.)--Chinese University of Hong Kong, 2004. / Includes bibliographical references (p. 247-285). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstracts in English and Chinese.

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