Proc Natl Acad Sci U S A
September 2024
Root exudates are known signaling agents that influence legume root nodulation, but the molecular mechanisms for nonflavonoid molecules remain largely unexplored. The number of soybean root nodules during the initial growth phase shows substantial discrepancies at distinct developmental junctures. Using a combination of metabolomics analyses on root exudates and nodulation experiments, we identify a pivotal role for certain root exudates during the rapid growth phase in promoting nodulation.
View Article and Find Full Text PDFTher Adv Neurol Disord
February 2024
Background: Myasthenic crisis (MC) is a life-threatening condition for myasthenia gravis (MG). Therapeutic plasma exchange (TPE) and intravenous immunoglobulin (IVIg) efficaciously treat patients with MC. However, not every MC responds well to rescue therapies, and the determinants for outcome with the evidence from prospective cohorts are still lacking.
View Article and Find Full Text PDFThe purpose of this retrospective study is to compare the efficacy and safety of the centrifugal separation therapeutic plasma exchange (TPE) using citrate anticoagulant (cTPEc) with membrane separation TPE using heparin anticoagulant (mTPEh) in liver failure patients. The patients treated by cTPEc were defined as cTPEc group and those treated by mTPEh were defined as mTPEh group, respectively. Clinical characteristics were compared between the two groups.
View Article and Find Full Text PDFAim: Hyperfibrinogenemia had been widely observed in various cancer patients, however, whether fibrinogen (FIB) influences the survival outcome of patients with primary liver cancer (PLC) remains unknown. This study was aimed to evaluate the predictive value of preoperative FIB in the survival outcome of PLC patients and explore the possible mechanism.
Methods: Retrospective study was performed in PLC patients who underwent hepatectomy.
Myasthenic crisis (MC) is a life-threatening state with respiratory failure in patients with myasthenia gravis (MG). The fast-acting immunomodulatory therapies for treating MC included plasma exchange (PE) and intravenous immunoglobulin (IVIG). However, the efficacy and the impact on antibody changes remained unknown.
View Article and Find Full Text PDFPurpose: Blood loss may be corrected with red blood cell transfusion, but may ultimately contribute to negative impacts. This study was a retrospective analysis to assess the impact of perioperative blood transfusion on hospital stay days in liver cancer patients.
Methods: We retrospectively examined data from patients with primary liver cancer who underwent curative resection.
Background: Stored red blood cell (RBC) transfusion has been shown to enhance the risk of cancer recurrence. However, the underlying mechanism remains unknown. At our lab, we have demonstrated that the extracellular ubiquitin (eUb) released by aged RBCs could promote tumor metastasis in a melanoma mouse model.
View Article and Find Full Text PDFBackground: Blood transfusion is a vital treatment for cancer patients, but some studies have proved that there is an association between transfusion and the risk of cancer recurrence. Storage time influences the quality of red blood cells (RBCs), and the transfusion of aged RBCs can result in hepatocellular carcinoma (HCC) recurrence, which could be related to the ubiquitin (Ub) released by aged RBCs. In this study, we explored the effect of eUb on the biological characteristics of hepatoma cells.
View Article and Find Full Text PDF: The transfusion of blood that has been stored for some time was found to be associated with transfusion-related immune modulation (TRIM) responses in cancer patients, which could result in poor clinical outcomes, such as tumor recurrence, metastasis and reduced survival rate. Given the prior observation of the positive correlation between ubiquitin content in whole blood and storage duration by the investigators of the present study, it was hypothesized that this could be the causal link behind the association between the transfusion of stored blood and poor cancer prognosis. : In the present study, a melanoma mouse model was used to study the potential clinical impact of ubiquitin present in stored blood on cancer prognosis through a variety of cell biology methods, such as flow cytometry and immunohistochemistry.
View Article and Find Full Text PDFJ Cancer Res Clin Oncol
June 2019
Purpose: During the past decades, PD-1/PD-L1 axis blockade has become a remarkable promising therapy which has exerted durable anti-tumor effect and long-term remissions on part of cancers. However, there are still some patients which do not show good response to the PD-1/PD-L1 targeted monotherapy. Till now, the widely accepted anti-tumor mechanism of PD-1/PD-L1 blockade is rejuvenating T cells, there is lack of studies which focus on other components of the tumor environment in the treatment of cancer with PD-1/PD-L1 blockade, especially the complicated relationship between macrophages and PD-1/PD-L1 pathway during the progression and treatment of cancer.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
August 2018
Objective: Through researching preoperative coagulation function in the case of ABO-identical blood insufficient for emergency rescue transfusion according to recommended programs of special emergency rescue transfusion was carried out, the relationship between volume of blood products and coagulation function was analyzed.
Methods: The surgical cases of blood transfusion more than 1 600 ml during operation were collected in our hospitals from Aug 2015 to Dec 2016(n=218), these cases were divided into the normal coagulation group(Group A) and abnormal coagulation group(Group B), and the patients of emergency rescue transfusion O type blood group(Group C). The basic information of cases, the infused volume of red blood cell(RBC), virus-inactivated frozen plasma(VIFP), fresh frozen plasma(FFP), cryoprecipitate(C)and platelets(P), prothrombin time(PT), activated partial thromboplastin time(APTT), fibrinogen(FIB)and international normalized ratio(INR)were analyzed, the relationship between volume of blood transfusion and coagulation function were also analysed.
Bcl-2 family proteins play key roles in the intrinsic apoptosis pathway in platelets, with both pro- and antiapoptotic protein expressions regulating survival during ex vivo storage. We detected a significant decrease in antiapoptotic Bcl-x and increase in proapoptotic Bak expression on the third day of storage and as a result the ratio of Bak:Bcl-x also decreased. Moreover, we identified an interaction between Bcl-x and Bak.
View Article and Find Full Text PDFPlatelet storage lesions seriously affect the quality of stored platelets, even causing them to be ineffective in vivo after transfusion. Past research have been focused on what mechanism(s) cause the formation of storage lesions. One proposed mechanism is microRNAs (miRNAs)-based molecular regulation of the platelet mRNAs that are relevant to the storage lesion.
View Article and Find Full Text PDFMany biological molecules in the stored blood were involved in transfusion-related immunomodulation. One important effect was the differentiation bias of immune cells to Th2 type. In this study, we observed the immune regulation of extracellular ubiquitin accummulated in the plasma of whole blood on the differentiation of T help cells in vitro using ELISA and quantitative fluorescence real-time PCR with the help of LPS stimulated human peripheral blood mononuclear cells.
View Article and Find Full Text PDFZhongguo Shi Yan Xue Ye Xue Za Zhi
February 2010
As allogeneic blood transfusion plays a role in clinical treatment effects, it also produces a number of immune-related side effects, such as the increased rate of postoperative infection, the rising relapse rate of malignant resection and so on. All those factors, such as CD200 surface molecule of allogeneic mononuclear cells, interleukin, sHLA and sFasL which are detached from the leukocyte surface during the period of storage, and serum bioactive molecules related to a certain degree with the occurrence of transfusion-related immunomodulation (TRIM). The clinical controlled trials, laboratory researches and animal models demonstrated that cloning deletion, induction of anergy and immune suppression are the three major mechanisms of TRIM.
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