1.Exosome-mediated lnc-ABCA12-3 promotes proliferation and glycolysis but inhibits apoptosis by regulating the tolllike receptor 4uclear factor kappa-B signaling pathway in esophageal squamous cell carcinoma
Junliang MA ; Yijun LUO ; Yingjie LIU ; Cheng CHEN ; Anping CHEN ; Lubiao LIANG ; Wenxiang WANG ; Yongxiang SONG
The Korean Journal of Physiology and Pharmacology 2023;27(1):61-73
Esophageal squamous cell carcinoma (ESCC) is a kind of malignant tumor with high incidence and mortality in the digestive system. The aim of this study is to explore the function of lnc-ABCA12-3 in the development of ESCC and its unique mechanisms. RT-PCR was applied to detect gene transcription levels in tissues or cell lines like TE-1, EC9706, and HEEC cells. Western blot was conducted to identify protein expression levels of mitochondrial apoptosis and toll-like receptor 4 (TLR4)uclear factor kappa-B (NF-κB) signaling pathway. CCK-8 and EdU assays were carried out to measure cell proliferation, and cell apoptosis was examined by flow cytometry. ELISA was used for checking the changes in glycolysis-related indicators.Lnc-ABCA12-3 was highly expressed in ESCC tissues and cells, which preferred it to be a candidate target. The TE-1 and EC9706 cells proliferation and glycolysis were obviously inhibited with the downregulation of lnc-ABCA12-3, while apoptosis was promoted. TLR4 activator could largely reverse the apoptosis acceleration and relieved the proliferation and glycolysis suppression caused by lnc-ABCA12-3 downregulation. Moreover, the effect of lnc-ABCA12-3 on ESCC cells was actualized by activating the TLR4/NF-κB signaling pathway under the mediation of exosome. Taken together, the lnc-ABCA12-3 could promote the proliferation and glycolysis of ESCC, while repressing its apoptosis probably by regulating the TLR4/NF-κB signaling pathway under the mediation of exosome.
2.Clinical Characteristics of Children with Hemophagocytic Syndrome with Different EB Virus DNA Loads.
Jiao-Jiao HUANG ; Nan-Du LUO ; Zuo-Chen DU ; Jia-Hong YAN ; Jin-Hua MA ; Xiu-Li CAO ; Zhi-Xu HE ; Pei HUANG ; Yan CHEN
Journal of Experimental Hematology 2023;31(1):261-267
OBJECTIVE:
To analyze the clinical characteristics of hemophagocytic syndrome (HLH) children with different EB virus (EBV) DNA loads, and to explore the relationship between differential indicators and prognosis.
METHODS:
Clinical data of 73 children with HLH treated in our hospital from January 2015 to April 2022 were collected. According to EBV DNA loads, the children were divided into negative group (≤5×102 copies/ml), low load group (>5×102-<5×105 copies/ml) and high load group (≥5×105copies/ml). The clinical symptoms and laboratory indexes of the three groups were compared, and the ROC curve was used to determine the best cut-off value of the different indexes. Cox regression model was used to analyze the independent risk factors affecting the prognosis of children, and to analyze the survival of children in each group.
RESULTS:
The proportion of female children, the swelling rate of liver and spleen lymph nodes and the involvement rate of blood, liver, circulation and central nervous system in the high load group were higher than those in the negative group. The incidence of disseminated intravascular coagulation(DIC) and central nervous system(CNS) involvement in the high load group were higher than those in the low load group. The liver swelling rate and circulatory system involvement rate in the low load group were higher than those in the negative group(P<0.05). PLT counts in the high load group were significantly lower than those in the negative group, and the levels of GGT, TBIL, CK-MB, LDH, TG, SF, and organ involvement were significantly higher than those in the negative group. The levels of CK, LDH, SF and the number of organ involvement in the high load group were significantly higher than those in the low load group. The levels of GGT and TBIL in low load group were significantly higher than those in negative group. In terms of treatment, the proportion of blood purification therapy in the high and low load group was significantly higher than that in the negative group(P<0.01). ROC curve analysis showed that the best cut-off values of PLT, LDH, TG and SF were 49.5, 1139, 3.12 and 1812, respectively. The appellate laboratory indicators were dichotomized according to the cut-off value, and the differential clinical symptoms were included in the Cox regression model. Univariate analysis showed that LDH>1139 U/L, SF>1812 μg/L, dysfunction of central nervous system, number of organ damage, DIC and no blood purification therapy were the risk factors affecting the prognosis of children (P<0.05); Multivariate analysis shows that PLT≤49.5×109/L and dysfunction of central nervous system were risk factors affecting the prognosis of children (P<0.05). Survival analysis showed that there was no significant difference in the survival rate among the three groups.
CONCLUSION
The incidence of adverse prognostic factors in children with HLH in the EBV-DNA high load group is higher, and there is no significant difference in the survival rate of the three groups after blood purification therapy. Therefore, early identification and application of blood purification therapy is of great significance for children with HLH in the high load group.
Humans
;
Child
;
Female
;
Lymphohistiocytosis, Hemophagocytic
;
Retrospective Studies
;
Risk Factors
;
DNA
;
Prognosis
3.Research updates of osteoimmunomodulation in osteogenesis.
Yaping MA ; Weiqun WANG ; Dingmei ZHANG ; Jun AO ; Xin WANG
Chinese Journal of Cellular and Molecular Immunology 2023;39(8):759-766
The gold-standard for bone substitution of large bone defects continues to be autogenous bone graft. Artificial bone substitutes are difficult to replace the autogenous bone grafting due to excessive immune response, fast biodegradation characteristics and inappropriate biocompatibility. Given these drawbacks, osteoimmunology and its advanced functional biomaterials have gained growing attention in recent years. Immune system plays an essential role during bone healing via regulating the shift from inflammatory to anti-inflammation phenotype, and inflammatory cytokines response. The inflammatory reaction mainly include infiltration of immune cells (such as macrophages, neutrophils, T cells, B cells, etc) and release of inflammatory factors (such as IL-1β, IL-6, TNF-α, etc.) at the bone defects, which subsequently affect the step-wised process of bone healing rejuvenation. Hence, advanced bone biomaterials with immunomodulatory properties is of great significance for the treatment of patients with recalcitrant bone defects, especially for delayed healing or non-union. The reciprocal mechanism of immuno-modulated bone healing, however, is not fully understood and more research is required in the future.
Osteogenesis
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Cytokines
;
Biocompatible Materials
;
Macrophages
;
T-Lymphocytes
;
Bone Regeneration
4.Individualized red-cell transfusion strategy for non-cardiac surgery in adults: a randomized controlled trial.
Ren LIAO ; Jin LIU ; Wei ZHANG ; Hong ZHENG ; Zhaoqiong ZHU ; Haorui SUN ; Zhangsheng YU ; Huiqun JIA ; Yanyuan SUN ; Li QIN ; Wenli YU ; Zhen LUO ; Yanqing CHEN ; Kexian ZHANG ; Lulu MA ; Hui YANG ; Hong WU ; Limin LIU ; Fang YUAN ; Hongwei XU ; Jianwen ZHANG ; Lei ZHANG ; Dexing LIU ; Han HUANG
Chinese Medical Journal 2023;136(23):2857-2866
BACKGROUND:
Red-cell transfusion is critical for surgery during the peri-operative period; however, the transfusion threshold remains controversial mainly owing to the diversity among patients. The patient's medical status should be evaluated before making a transfusion decision. Herein, we developed an individualized transfusion strategy using the West-China-Liu's Score based on the physiology of oxygen delivery/consumption balance and designed an open-label, multicenter, randomized clinical trial to verify whether it reduced red cell requirement as compared with that associated with restrictive and liberal strategies safely and effectively, providing valid evidence for peri-operative transfusion.
METHODS:
Patients aged >14 years undergoing elective non-cardiac surgery with estimated blood loss > 1000 mL or 20% blood volume and hemoglobin concentration <10 g/dL were randomly assigned to an individualized strategy, a restrictive strategy following China's guideline or a liberal strategy with a transfusion threshold of hemoglobin concentration <9.5 g/dL. We evaluated two primary outcomes: the proportion of patients who received red blood cells (superiority test) and a composite of in-hospital complications and all-cause mortality by day 30 (non-inferiority test).
RESULTS:
We enrolled 1182 patients: 379, 419, and 384 received individualized, restrictive, and liberal strategies, respectively. Approximately 30.6% (116/379) of patients in the individualized strategy received a red-cell transfusion, less than 62.5% (262/419) in the restrictive strategy (absolute risk difference, 31.92%; 97.5% confidence interval [CI]: 24.42-39.42%; odds ratio, 3.78%; 97.5% CI: 2.70-5.30%; P <0.001), and 89.8% (345/384) in the liberal strategy (absolute risk difference, 59.24%; 97.5% CI: 52.91-65.57%; odds ratio, 20.06; 97.5% CI: 12.74-31.57; P <0.001). No statistically significant differences were found in the composite of in-hospital complications and mortality by day 30 among the three strategies.
CONCLUSION:
The individualized red-cell transfusion strategy using the West-China-Liu's Score reduced red-cell transfusion without increasing in-hospital complications and mortality by day 30 when compared with restrictive and liberal strategies in elective non-cardiac surgeries.
TRIAL REGISTRATION
ClinicalTrials.gov, NCT01597232.
Humans
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Adult
;
Postoperative Complications
;
Erythrocyte Transfusion/adverse effects*
;
Blood Transfusion
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Hospitals
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Hemoglobins/analysis*
5.Multi-component content determination of Dracocephalum tanguticum by quantitative analysis of multi-components by single-marker.
Ju YE ; Cheng WANG ; Yu-Jie MA ; Zha-Xi BAIMA ; Yuan-Yuan TANG ; Xu-Guang HE ; Min MA
China Journal of Chinese Materia Medica 2023;48(15):4253-4260
This study aims to establish a method for the simultaneous determination of 7 active components in Dracocephalum tanguticum and to evaluate the quality of medicinal materials from different habitats. The method was established with high performance liquid chromatography(HPLC) and the gradient elution was performed with the mobile phase of acetonitrile-methanol-0.2% phosphoric acid solution at a column temperature of 35 ℃, an injection volume of 15 μL, and a flow rate of 0.6 mL·min~(-1). The detection wavelength was set as 215 nm. With rosmarinic acid as the internal reference, the relative correction factors and the content of other 6 components were calculated. The results were compared with those obtained with the external standard method. The results showed that the samples from Huangzhong county, Qinghai province had the best quality, with the highest content of p-hydroxybenzoic acid, cosmosiin, rosmarinic acid, oleanolic acid, and ursolic acid(9.29, 12.14, 6.02, 3.11, 17.67 mg·g~(-1) respectively). The samples from Chaya county, Tibet autonomous region ranked the second, with the highest content of betulin and betulinic acid(15.53, 7.17 mg·g~(-1), respectively). The method is accurate, reliable, and repeatable and suitable for the simultaneous determination of multiple components in D. tanguticum. The content of functional components varied in the samples from different producing areas and can be used as the indicator for the quality evaluation of medicinal materials.
Cinnamates
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Drugs, Chinese Herbal/analysis*
;
Lamiaceae
;
Chromatography, High Pressure Liquid/methods*
;
Rosmarinic Acid
6.Alternative splicing of PSMD13 mediated by genetic variants is significantly associated with endometrial cancer risk
Sisi HE ; Rong CAO ; Yan MAO ; Na LI ; Yanzhe WANG ; Hu MA ; Kunming TIAN
Journal of Gynecologic Oncology 2023;34(3):e40-
Objective:
Accumulating evidence has shown that aberrant alternative splicing events are closely associated with the onset and development of cancer. However, whether genetic variants-associated alternative splicing is linked to risk of endometrial cancer remains largely uncertain.
Methods:
We identified single nucleotide polymorphisms (SNPs) locates in the splicing number trait locus (sQTL) of endometrial cancer using the CancerSplicing QTL database. In parallel with bioinformatics analysis, we conducted a case-control study comprising 2,000 cases and 2,013 controls to assess the association between identified SNP which possesses mRNA splicing function and endometrial cancer susceptibility. Furthermore, we used the Kaplan-Meier Plotter, The Human Protein Atlas, SPNR, and Spliceman2 databases for sQTL and differential gene expression analyses to identify the genetic variant which most potentially influence the risk of endometrial cancer through alternative splicing to reveal the potential mechanism by which candidate SNPs regulate the risk of endometrial cancer.
Results:
The results indicated that SNP rs7128029 A
7.Progress of researches on the involvement of indoleamine 2, 3-dioxygenase in regulation of parasite-host immune interactions
Li-Jun WANG ; Pei-Yu MA ; Hui LIU ; Jian-Ping CAO ; Hua-Mei LI ; Ming-Hui ZHENG
Chinese Journal of Schistosomiasis Control 2021;33(2):209-212
Indoleamine 2, 3-dioxygenase (IDO) is an important immunoregulatory enzyme, which mediates immune effects by depleting tryptophan and producing multiple metabolites. Recently, the studies on the immune function of IDO have been mostly restricted in tumors and autoimmune diseases. Nevertheless, there are few studies pertaining to the role of IDO in parasitic diseases, notably in parasite-host immune interactions. This review mainly describes IDO-mediated immunoregulatory effects and its regulation of parasite-host interactions, so as to provide insights into the development of immune intervention schemes against parasitic diseases.
8.Role of N6-methyladenosine in the development and progression of hepatocellular carcinoma
Journal of Clinical Hepatology 2021;37(9):2210-2214
Hepatocellular carcinoma (HCC) is the most common type of primary liver cancer and has relatively high incidence and mortality rates. Abnormal modification of N6-methyladenosine (m6A) may promote the development and progression of HCC. This article describes the structure and function of m6A and summarizes the mechanism of action of methylase complexes which decide the function of m6A in HCC, including methyltransferases (writers), demethylases (erasers), and m6A-binding proteins (readers). It is pointed out that more in-depth studies are needed to clarify the diverse and specific role of methylase complexes in HCC, so as to help them become the new targets for the prevention and treatment of HCC in the future.
10.Zoster sine herpete: a review
Junli ZHOU ; Juan LI ; Lulin MA ; Song CAO
The Korean Journal of Pain 2020;33(3):208-215
Zoster sine herpete (ZSH) is one of the atypical clinical manifestations of herpes zoster (HZ), which stems from infection and reactivation of the varicella-zoster virus (VZV) in the cranial nerve, spinal nerve, viscera, or autonomic nerve. Patients with ZSH display variable symptoms, such as neuralgia, however, different from HZ, ZSH show no zoster, which makes clinical diagnosis difficult. ZSH not only causes initial symptoms, such as neuropathic pain in the affected nerve, Bell palsy, and Ramsay Hunt syndrome, but also postherpetic neuralgia and fatal complications such as VZV encephalitis and stroke. The misdiagnosis of ZSH and tardy antiviral treatment may lead to severe ZSH sequelae. We review the publications related to ZSH, especially its diagnosis with VZV DNA and/or anti-VZV immunoglobulin (IgG and IgM). More work about ZSH, especially ZSH epidemiological survey and guidelines for its diagnosis and treatment, are needed because most of the present studies are case reports.

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