Nerve is the foundation of the physiological function such as the skin feeling and thermoregulation, and also regulates the regeneration and scar healing of skin wound by multiple mechanisms. Though the denervated skin wound can heal spontaneously, the nerve might accelerate wound healing by activating the neurogenic inflammation and nerve trophism, increasing the blood supply around the wound, promoting the proliferation of fibroblasts and keratinocytes, stimulating the expression of collagen I and III, and interacting with immune system and releasing neuropeptides. If all kinds of repair cells, extracellular matrix, nerve, blood vessel and cutaneous appendages assemble organically, the skin wound regenerates, and otherwise the scar heals. The nerve axon growth occurs mainly in the early stage of the wound healing and the scar rebuilding process, and the nerve growth rate is obviously slower than the granulation tissue formation and cicatrization. Furthermore, the axon growth of different nerve fibers are not entirely the same. The exogenous neuropeptides might promote the wound repair and the nerve regeneration. The antagonist of the neuropeptides or high selective nerve abscission might reduce the scar hyperplasia. Therefore, it contribute to find methods to promote the regeneration of skin wound and peripheral nerve injury by understanding the effects and regulatory mechanism of both nerve and various repair elements in regeneration or scar healing of skin wound.

OBJECTIVE: To determine an approach enriching cancer stem cells from laryngeal cancer cell line. To investigate whether laryngeal cancer stem cells in chemoradiotherapy have the characteristic of resistance. METHOD: CD133+ cells and CD133- cells was detected and isolated from Hep-2 cell line by fluorescence activated cell sorting technology. The cytotoxicities of cisplatin and radiation were investigated by cell counting kit-8(CCK-8) assay. The apoptosis and cell cycle was analyzed with flow cytometry. RESULT: CD133+ cells accounted for a fraction of (2.43 +/- 0.77)% in Hep-2 cell line. CD133+ cells have a more obvious characteristics of cancer stem cells. Different cisplatin and radiation concentrations of for two cell have inhibition, in a certain concentration range and the dosage dependence. Cisplatin and radiation had synergistic inhibitory effects with CD133- cells on the growth of two cell. Moreover, cell cycle arrest at G0/G1 phase and more apoptosis was induced by synergistic combination. Different concentrations of cetuximab for Hep-2 cells have inhibition, in a certain concentration range and time and the dosage dependence. The half maxial inhibitory concentration (IC50) of cetuximab to Hep-2 cells on 24 h was 1 036.84 microg/L. Cisplatin and radiation had synergistic inhibitory effects with cetuximab on the growth of Hep-2 cell line. Moreover, cell cycle arrest at G0/G1 phase and more apoptosis was induced by synergistic combination. CONCLUSION Compared with CD133- cells, CD133+ cells subpopulation exhibited extraordinary cancer stem.
AC133 Antigen ; Antibodies, Monoclonal, Humanized ; pharmacology ; Antigens, CD ; analysis ; Antineoplastic Agents ; pharmacology ; Apoptosis ; Cell Cycle ; Cell Line, Tumor ; Cetuximab ; Chemoradiotherapy ; Cisplatin ; pharmacology ; Drug Resistance, Neoplasm ; Flow Cytometry ; Glycoproteins ; analysis ; Humans ; Laryngeal Neoplasms ; therapy ; Neoplastic Stem Cells ; drug effects ; radiation effects ; Peptides ; analysis ; Radiation Tolerance

Objective:To investigate the efficacy of Yupingfeng granule combined with cetirizine in the treatment of allergic rhinitis and its effects on serum inflammatory factor level. Methods:A total of 162 patients with allergic rhinitis admitted to Zhejiang Provincial Hospital of Chinese Medicine from January 2021 to March 2022 were included in this prospective controlled study. They were randomly divided into a control group and an observation group ( n = 81/group). The control group was treated with cetirizine and the observation group was treated with Yupingfeng granule combined with cetirizine. All patients were treated for 4 weeks. Clinical efficacy was compared between the two groups after 4 weeks of treatment. Main symptom score, nasal function indexes (total nasal airway resistance, nasal minimal cross-sectional area, and 0-5 cm nasal cavity volume), levels of inflammatory factors (interleukin-4, interleukin-6, and interleukin-10), and Rhinoconjunctivitis Quality of Life Questionnaire scores were compared between the two groups before and after 4 weeks of treatment. Results:Total response rate in the observation group was significantly higher than that in the control group [92.59% (75/81) vs. 79.01% (64/81), χ2 = 6.13, P < 0.05]. After 4 weeks of treatment, the scores of nasal congestion, nasal itching, and sneezing in the observation group were (0.63 ± 0.20) points, (0.70 ± 0.21) points, and (0.54 ± 0.17) points, which were significantly lower than (1.07 ± 0.23) points, (1.08 ± 0.24) points, and (0.89 ± 0.22) points in the control group ( t = 12.99, 10.72, 11.33, all P < 0.05). After 4 weeks of treatment, total nasal airway resistance in the observation group was significantly lower than that in the control group [(0.17 ± 0.05) kPa·s -1·L -1vs. (0.26 ± 0.06) kPa·s -1·L -1, t = 10.37, P < 0.05]. Nasal minimal cross-sectional area and 0-5 cm nasal cavity volume in the observation group were (0.94 ± 0.17) cm 2 and (9.74 ± 0.89) cm 3, respectively, which were significantly higher than (0.76 ± 0.10) cm 2 and (8.43 ± 0.78) cm 3 in the control group ( t = 8.21, 9.96, both P < 0.05). After 4 weeks of treatment, serum levels of interleukin-4 and interleukin-6 in the observation group were (67.79 ± 9.94) ng/L and (6.74 ± 1.42) ng/L, respectively, which were significantly lower than (104.31 ± 14.45) ng/L and (10.29 ± 2.56) ng/L in the control group ( t = 18.74, 10.91, both P < 0.05). Serum level of interleukin-10 in the observation group was significantly higher than that in the control group [(17.97 ± 2.54) ng/L vs. (12.48 ± 2.46) ng/L, t = 13.97, P < 0.05]. After 4 weeks of treatment, Rhinoconjunctivitis Quality of Life Questionnaire score in the observation group was significantly lower than that in the control group [(27.43 ± 8.82) points vs. (38.95 ± 7.76) points, t = 8.82, P < 0.05). Conclusion:Yupingfeng granule combined with cetirizine is highly effective on allergic rhinitis. The combined therapy can reduce clinical symptoms and inflammatory reactions, improve nasal function, and thereby improve quality of life.

OBJECTIVE: To evaluate the function of Th17 cells in allergic rhinitis,through comparing the symptoms, pathology and and the quantity of Th1, Th2 and Th17 cytokine in normal mice, allergic rhinitis mice and allergic rhinitis mice with IL-17 antibody application. METHOD: Thirty BALB/c mice were randomly divided into three groups, control group, allergic rhinitis group, and therapy group. The allergic rhinitis model was induced by classical method with ovalbumin. The therapy group was treated with IL-17 antibody. The concentration of IL-17, IL-4 and IFN-gamma in serum was measured by enzyme-linked immunosorbent assay (ELISA). Nasal mucosal inflammation was evaluated by HE staining. The expression of RORgammat mRNA was measured by reverse transcription-polymerase chain reaction (RT-PCR). RESULTS: The expression level of IL-17, IL-4 and RORgammat mRNA in allergic rhinitis group were significantly higher than those of control group and IL-17 antibody treated group (P < 0.05). While the expression level of IFN-gamma in allergic rhinitis group were significantly was lower than those of control group and IL-17 antibody treated group (P < 0.05). The inflammation reaction in therapy group abated with nasal mucosal HE staining. CONCLUSION The large quantity of Th2, Th17 cells were found in allergic rhinitis. It might be associated with the pathogenesis of allergic rhinitis. The control of Th17 cells expression may be an effective way to treat allergic rhinitis.
Animals ; Disease Models, Animal ; Female ; Interferon-gamma ; immunology ; Interleukin-17 ; immunology ; Interleukin-4 ; immunology ; Male ; Mice ; Mice, Inbred BALB C ; Ovalbumin ; immunology ; Rhinitis ; immunology ; metabolism ; Th17 Cells ; immunology ; Th2 Cells ; immunology