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  • 1
    In: Frontiers in Pharmacology, Frontiers Media SA, Vol. 12 ( 2021-8-27)
    Abstract: Respiratory diseases, especially the pandemic of respiratory infectious diseases and refractory chronic lung diseases, remain a key clinical issue and research hot spot due to their high prevalence rates and poor prognosis. In this review, we aimed to summarize the recent advances in the therapeutic effects and molecular mechanisms of key common bioactive compounds from Chinese herbal medicine. Based on the theories of traditional Chinese medicine related to lung diseases, we searched several electronic databases to determine the high-frequency Chinese medicines in clinical application. The active compounds and metabolites from the selected medicines were identified using the Traditional Chinese Medicine Systems Pharmacology Database (TCMSP) by analyzing oral bioavailability and drug similarity index. Then, the pharmacological effects and molecular mechanisms of the selected bioactive compounds in the viral and bacterial infections, inflammation, acute lung injury (ALI), chronic obstructive pulmonary disease (COPD), pulmonary fibrosis, asthma, and lung cancer were summarized. We found that 31 bioactive compounds from the selected 10 common Chinese herbs, such as epigallocatechin-3-gallate (EGCG), kaempferol, isorhamnetin, quercetin, and β-sitosterol, can mainly regulate NF-κB, Nrf2/HO-1, NLRP3, TGF-β/Smad, MAPK, and PI3K/Akt/mTOR pathways to inhibit infection, inflammation, extracellular matrix deposition, and tumor growth in a series of lung-related diseases. This review provides novel perspectives on the preclinical study and clinical application of Chinese herbal medicines and their bioactive compounds against respiratory diseases.
    Type of Medium: Online Resource
    ISSN: 1663-9812
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2587355-6
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  • 2
    Online Resource
    Online Resource
    Future Medicine Ltd ; 2012
    In:  Nanomedicine Vol. 7, No. 8 ( 2012-08), p. 1211-1224
    In: Nanomedicine, Future Medicine Ltd, Vol. 7, No. 8 ( 2012-08), p. 1211-1224
    Abstract: Aim: As a preliminary to the construction of olfactory ensheathing cells (OECs) bearing scaffold for bridging larger lesions in the spinal cord, we have investigated the response of purified cultured OECs to nanoscale fibers of varying diameter using US FDA-approved, biodegradable poly(lactic-co-glycolic-acid). Materials & methods: Conventional electrospinning produced fibers of approximately 700 nm diameter (nano-700) while nanocomposite electrospinning with quantum dots produced significantly more uniform fibers of a reduced diameter to approximately 237 nm (nano-250). OECs from adult rat were FACS purified, cultured at low density on either a flat surface or a meshwork of randomly orientated nano-700 and nano-250 fibers, and assessed using cytomorphometric analysis of immunofluorescent confocal images and by scanning electron microscopy. Results & conclusion: Compared with a flat surface, culture on a nano-700 mesh increases cell attachment. Cells change from rounded to stellate forms in random orientation. Further size reduction to the nano-250 favors bipolarity in cells with unidirectional orientation as observed in the case when transplanted OECs were used to bridge areas of damage in rat spinal cords. Original submitted 26 August 2011; Revised submitted 28 October 2011; Published online 25 May 2012
    Type of Medium: Online Resource
    ISSN: 1743-5889 , 1748-6963
    Language: English
    Publisher: Future Medicine Ltd
    Publication Date: 2012
    SSG: 15,3
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  • 3
    In: Frontiers in Pharmacology, Frontiers Media SA, Vol. 12 ( 2021-12-3)
    Abstract: Pulmonary fibrosis (PF) is one of the pathologic changes in COVID-19 patients in convalescence, and it is also a potential long-term sequela in severe COVID-19 patients. Qimai Feiluoping decoction (QM) is a traditional Chinese medicine formula recommended in the Chinese national medical program for COVID-19 convalescent patients, and PF is one of its indications. Through clinical observation, QM was found to improve the clinical symptoms and pulmonary function and reduce the degree of PF of COVID-19 convalescent patients. To further explore the pharmacological mechanisms and possible active components of QM in anti-PF effect, UHPLC/Q-TOF-MS was used to analyze the composition of the QM extract and the active components that can be absorbed into the blood, leading to the identification of 56 chemical compounds and 10 active components. Then, network pharmacology was used to predict the potential mechanisms and targets of QM; it predicted that QM exerts its anti-PF effects via the regulation of the epithelial–mesenchymal transition (EMT), extracellular matrix (ECM) degradation, and TGF-β signaling pathway. Finally, TGF-β1–induced A549 cells were used to verify and explore the pharmacological effects of QM and found that QM could inhibit the proliferation of TGF-β1–induced A549 cells, attenuate EMT, and promote ECM degradation by inhibiting the TGF-β/Smad3 pathway.
    Type of Medium: Online Resource
    ISSN: 1663-9812
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2021
    detail.hit.zdb_id: 2587355-6
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  • 4
    In: Cellular Physiology and Biochemistry, S. Karger AG, Vol. 47, No. 3 ( 2018), p. 948-956
    Abstract: Background/Aims: Basic fibroblast growth factor (bFGF) and nerve growth factor (NGF) are essential for proper development, survival, growth, and maintenance of neurons in the central and peripheral nervous systems. However, because bFGF and NGF have short half-life and rapid diffusion rate, they have limited clinical efficacy. Thus, there is an urgent need to develop an effective delivery system to protect bFGF and NGF from proteolysis while maintaining their normal bioactivities. Methods: To more efficiently deliver bFGF and NGF, we used a coacervate (synthesized with heparin and a biodegradable polycation at mass ratio of 500: 100). The maximal package loads of GFs in coacervate were determined by Western Blotting; release efficiency of bFGF and NGF was measured by ELISA. Additionally, we evaluated the effect of bFGF and NGF on the viability, survival, and proliferation of neurons by MTT assay, BrdU cell proliferation, and calcein staining. Results: Our coacervate incorporated bFGF and NGF and continuously released them for at least three weeks. This enhanced the growth and proliferation of PC12 cells and SH-SY5Y cells. Moreover, co-delivery of bFGF and NGF using coacervate was more neuroprotective than free application of both factors or coacervate delivery of each GF separately. Conclusions: Dual delivery of bFGF and NGF binding coacervate was neuroprotective via stimulating the growth and proliferation of neurons.
    Type of Medium: Online Resource
    ISSN: 1015-8987 , 1421-9778
    Language: English
    Publisher: S. Karger AG
    Publication Date: 2018
    detail.hit.zdb_id: 1482056-0
    SSG: 12
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  • 5
    In: Frontiers in Pharmacology, Frontiers Media SA, Vol. 13 ( 2022-3-7)
    Abstract: Promoting blood–spinal cord barrier (BSCB) repair at the early stage plays a crucial role in treatment of spinal cord injury (SCI). Excessive activation of autophagy can prevent recovery of BSCB after SCI. Basic fibroblast growth factor (bFGF) has been shown to promote BSCB repair and locomotor function recovery in SCI. However, the therapeutic effect of bFGF via direct administration on SCI is limited because of its rapid degradation and dilution at injury site. Based on these considerations, controlled release of bFGF in the lesion area is becoming an attractive strategy for SCI repair. At present, we have designed a sustained-release system of bFGF (called ALG-bFGF) using sodium alginate hydrogel, which is able to load large amounts of bFGF and suitable for in situ administration of bFGF in vivo . Here, traumatic SCI mice models and oxygen glucose deprivation (OGD)–stimulated human brain microvascular endothelial cells were performed to explore the effects and the underlying mechanisms of ALG-bFGF in promoting SCI repair. After a single in situ injection of ALG-bFGF hydrogel into the injured spinal cord, sustained release of bFGF from ALG hydrogel distinctly prevented BSCB destruction and improved motor functional recovery in mice after SCI, which showed better therapeutic effect than those in mice treated with bFGF solution or ALG. Evidences have demonstrated that autophagy is involved in maintaining BSCB integrity and functional restoration in animals after SCI. In this study, SCI/OGD exposure–induced significant upregulations of autophagy activation-related proteins (Beclin1, ATG5, LC3II/I) were distinctly decreased by ALG-bFGF hydrogel near the baseline and not less than it both in vivo and in vitro , and this inhibitory effect contributed to prevent BSCB destruction. Finally, PI3K inhibitor LY294002 and KLF4 inhibitor NSC-664704 were applied to further explore the underlying mechanism by which ALG-bFGF attenuated autophagy activation to alleviate BSCB destruction after SCI. The results further indicated that ALG-bFGF hydrogel maintaining BSCB integrity by inhibiting autophagy activation was regulated by PI3K/Akt/FOXO1/KLF4 pathway. In summary, our current study revealed a novel mechanism by which ALG-bFGF hydrogel improves BSCB and motor function recovery after SCI, providing an effective therapeutic strategy for SCI repair.
    Type of Medium: Online Resource
    ISSN: 1663-9812
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2587355-6
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  • 6
    In: Frontiers in Pharmacology, Frontiers Media SA, Vol. 13 ( 2022-9-5)
    Abstract: Inflammation and oxidative stress lead to various acute or chronic diseases, including pneumonia, liver and kidney injury, cardiovascular and cerebrovascular diseases, metabolic diseases, and cancer. Ginseng is a well-known and widely used ethnic medicine in Asian countries, and ginsenoside Rg3 is a saponin isolated from Panax ginseng C. A. Meyer, Panax notoginseng, or Panax quinquefolius L. This compound has a wide range of pharmacological properties, including antioxidant and anti-inflammatory activities, which have been evaluated in disease models of inflammation and oxidative stress. Rg3 can attenuate lung inflammation, prevent liver and kidney function damage, mitigate neuroinflammation, prevent cerebral and myocardial ischemia–reperfusion injury, and improve hypertension and diabetes symptoms. The multitarget, multipathway mechanisms of action of Rg3 have been gradually deciphered. This review summarizes the existing knowledge on the anti-inflammatory and antioxidant effects and underlying molecular mechanisms of ginsenoside Rg3, suggesting that ginsenoside Rg3 may be a promising candidate drug for the treatment of diseases with inflammatory and oxidative stress conditions.
    Type of Medium: Online Resource
    ISSN: 1663-9812
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2587355-6
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  • 7
    Online Resource
    Online Resource
    Frontiers Media SA ; 2022
    In:  Frontiers in Pharmacology Vol. 12 ( 2022-1-21)
    In: Frontiers in Pharmacology, Frontiers Media SA, Vol. 12 ( 2022-1-21)
    Abstract: Pulmonary fibrosis (PF) is the end stage of various chronic and progressive interstitial lung diseases. TGF-β, a profibrotic cytokine, can promote epithelial–mesenchymal transition (EMT), extracellular matrix (ECM) accumulation, and fibroblast proliferation, which contribute to progressive lung remodeling in PF. The Wenfei Buqi Tongluo (WBT) formula has been certified to be effective in the prevention and treatment of PF in clinical practice and has inhibitory effects on EMT, inflammation, and profibrotic factors. However, the pharmacological mechanisms of WBT against PF need to be further explored. In this study, we first analyzed the chemical components of the WBT formula using the UHPLC/Q-TOF-MS analysis. The potential targets of the identified compounds from WBT were predicted by the network pharmacology, which was confirmed by in vivo and in vitro study. After screening by the PubChem database, we first identified the 36 compounds of WBT and predicted the TGF-β signaling pathway, with ECM degradation as potential mechanism of WBT against PF by the network pharmacology. Furthermore, WBT treatment inhibited the levels of TGF-β and Smad3 phosphorylation and subsequently alleviated EMT and ECM accumulation in the bleomycin-induced mouse model and TGF-β1–induced cell model. These findings indicate that WBT can block the progressive process of PF by inhibiting EMT and promoting ECM degradation via the TGF-β/Smad3 pathway. This study may provide new insights into the molecular mechanism of WBT for the prevention and treatment of PF in the clinical application.
    Type of Medium: Online Resource
    ISSN: 1663-9812
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2587355-6
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  • 8
    In: Frontiers in Pharmacology, Frontiers Media SA, Vol. 13 ( 2022-4-1)
    Abstract: Ginsenosides from ginseng are used as a therapeutic agent for various diseases. They enhance the immunomodulatory effect in cyclophosphamide (CP)-treated tumor disease. The structural characteristics of steroidal saponins are mainly divided into protopanaxadiol-type saponin (PDS) and protopanaxatriol-type saponin (PTS). At present, few researchers have studied which kind of saponin plays a more important role, thus, we compared the prevention effect of PDS and PTS on myelosuppression mice induced by CP. The components and contents of saponin and monosaccharide were analyzed by using ultra high performance liquid chromatography-charged aerosol detector (UPLC-CAD) and reversed phase-high performance liquid chromatography (RP-HPLC), respectively. Thirty-two mice were randomly divided into four groups, including control, model (CP), CP+PDS, and CP+PTS. The mice were orally administered with PDS or PTS for 28 days and then injected with CP saline solution on 25, 26, 27, and 28 days at a dose of 50 mg × kg −1 . After the end of modeling, the whole blood of mice from the ophthalmic venous plexus was collected to detect routine blood tests, inflammatory cytokines, and hematopoiesis-related cytokines. Cell cycle and the apoptosis of bone marrow in the right femur were detected. The spleen and thymus were used to calculate the organ index and histological examination, and splenocytes were used to detect the percentage of CD4 + and CD25 + T cells. In the saponins analysis, PDS mainly included the Rb1, Rc, Rb2, and Rd of protopanaxadiol-type ginsenosides (accounted for 91.64%), and PTS mainly included the Re, Rg1, and Rf of protopanaxatriol-type ginsenosides (accounted for 75.46%). The animal results showed that both PDS and PTS improved the most indicators of myelosuppression mice induced by CP, including increased weight, blood cell numbers, hematopoiesis-related cytokines, and inflammatory cytokines; promoted the cell cycle of bone marrow and inhibited the apoptosis of bone marrow; elevated the spleen and thymus indexes and CD4 + count of splenocytes. The prevention effect of PDS was better than PTS in some indicators, such as red blood cells, hemoglobin, interleukin (IL)-1β, IL-4, IL-10, tumor necrosis factor-α, CD4 + , and thymus index. These results suggest both PDS and PTS can prevent myelosuppression of mice induced by CP. Meanwhile, PDS and its metabolite showed higher bioavailability and bioactivity compared with PTS.
    Type of Medium: Online Resource
    ISSN: 1663-9812
    Language: Unknown
    Publisher: Frontiers Media SA
    Publication Date: 2022
    detail.hit.zdb_id: 2587355-6
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  • 9
    In: Journal of Medicinal Chemistry, American Chemical Society (ACS), Vol. 57, No. 7 ( 2014-04-10), p. 2963-2988
    Type of Medium: Online Resource
    ISSN: 0022-2623 , 1520-4804
    Language: English
    Publisher: American Chemical Society (ACS)
    Publication Date: 2014
    detail.hit.zdb_id: 1491411-6
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  • 10
    In: Journal of Ethnopharmacology, Elsevier BV, Vol. 300 ( 2023-01), p. 115715-
    Type of Medium: Online Resource
    ISSN: 0378-8741
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2023
    detail.hit.zdb_id: 1491279-X
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