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Summary: This retrospective study analysed 106 acute myeloid leukaemia (AML) patients undergoing autologous haematopoietic stem cell transplantation (ASCT) to assess the impact of multiple small‐dose infusions of granulocyte‐colony‐stimulating factor (G‐CSF)‐mobilized haploidentical lymphocytes as post‐ASCT maintenance therapy. Among them, 50 patients received lymphocyte maintenance therapy, 21 received alternative maintenance therapy, and 35 received no maintenance therapy. Patients receiving lymphocyte maintenance therapy demonstrated significantly higher overall survival (OS) and disease‐free survival (DFS) compared to those without maintenance therapy, with 4‐year OS and DFS rates notably elevated. While there were no significant differences in recurrence rates among the three groups, lymphocyte maintenance therapy showcased particular benefits for intermediate‐risk AML patients, yielding significantly higher OS and DFS rates and lower relapse rates compared to alternative maintenance therapy and no maintenance therapy. The study suggests that multiple small‐dose infusions of G‐CSF‐mobilized haploidentical lymphocytes may offer promising outcomes for AML patients after ASCT, particularly for those classified as intermediate‐risk. These findings underscore the potential efficacy of lymphocyte maintenance therapy in reducing disease relapse and improving long‐term prognosis in this patient population. [ABSTRACT FROM AUTHOR]

Summary: Endosperm is the main storage organ in cereal grain and determines grain yield and quality. The molecular mechanisms of heat shock proteins in regulating starch biosynthesis and endosperm development remain obscure.Here, we report a rice floury endosperm mutant flo24 that develops abnormal starch grains in the central starchy endosperm cells. Map‐based cloning and complementation test showed that FLO24 encodes a heat shock protein HSP101, which is localized in plastids. The mutated protein FLO24T296I dramatically lost its ability to hydrolyze ATP and to rescue the thermotolerance defects of the yeast hsp104 mutant.The flo24 mutant develops more severe floury endosperm when grown under high‐temperature conditions than normal conditions. And the FLO24 protein was dramatically induced at high temperature. FLO24 physically interacts with several key enzymes required for starch biosynthesis, including AGPL1, AGPL3 and PHO1. Combined biochemical and genetic evidence suggests that FLO24 acts cooperatively with HSP70cp‐2 to regulate starch biosynthesis and endosperm development in rice.Our results reveal that FLO24 acts as an important regulator of endosperm development, which might function in maintaining the activities of enzymes involved in starch biosynthesis in rice. [ABSTRACT FROM AUTHOR]

After 2009, the economic phenomenon of Taobao villages appeared in China, whose economic growth started to decline, but the number of small- and medium-sized enterprises (SMEs) grew at an astonishing rate. Based on a case study of Taobao villages, we found that a new industrial-organizational structure had developed within the traditional e-commerce model. This industrial-organizational structure, which we termed, a key-node industry and industrial net (KIIN) system, is unique in the world. A key-node industry is a platform that integrates logistics, information flow, and capital flow. It reorganizes the traditional industrial-chain structure and is connected with the traditional industrial chains to form a network industrial-organizational model, which can become an industrial net. Through an analysis using the differences-in-differences model, we verify the hypothesis that the KIIN system can improve the efficiency of resource allocation by building a more competitive organizational structure and then improve the production efficiency. [ABSTRACT FROM AUTHOR]

Summary: Anti‐thymocyte globulin (ATG) or post‐transplant cyclophosphamide (PTCy)‐based regimens are widely used for graft‐versus‐host disease (GVHD) prophylaxis in haploidentical haematopoietic stem cell transplantation (haplo‐HSCT). To improve the effectiveness of GVHD prophylaxis in haploidentical peripheral blood stem cell transplantation (haplo‐PBSCT), we conducted a multicentre, randomized clinical trial to determine the efficacy of reduced‐dose PTCy (40 mg/kg/d on days 3 and 4) combined with low‐dose post‐transplant ATG (2.5 mg/kg on day 8)‐based GVHD prophylaxis (reduced‐dose PTCy/ATG) with fludarabine–busulfan–cytarabine (FBA) conditioning for patients with haematological malignancies. From 2018 to 2022, 122 patients from four institutions were randomly assigned 1:1 to either a reduced‐dose PTCy/ATG or a standard‐dose ATG group ('Beijing Protocol', ATG: 10 mg/kg). All patients achieved myeloid engraftment. Cumulative incidences of grade II–IV (11.5% vs 39.3%, p = 0.001) and grade III–IV (6.6% vs 24.6%, p = 0.014) acute GVHD at day 100 were significantly reduced in the reduced‐dose PTCy/ATG group. Furthermore, two‐year overall survival, disease‐free survival and GVHD‐free/relapse‐free survival were significantly improved in the reduced‐dose PTCy/ATG group (75.4% vs 54.1%, p = 0.021; 72.7% vs 55.0%, p = 0.044; 61.3% vs 42.3%, p = 0.022 respectively). Our results demonstrate that the addition of low‐dose ATG to reduced‐dose PTCy with FBA conditioning is a promising strategy in haplo‐PBSCT. [ABSTRACT FROM AUTHOR]

Tumour therapy has entered the era of immunotherapy. Monoclonal antibodies (mAb), immune checkpoint inhibitors, chimeric antigen receptor T‐cell (CAR‐T), cytokine‐induced killer (CIK), tumour‐infiltrating lymphocytes (TILs) and other cellular immunotherapies have become the focus of current research. The CD47/SIRPα target is becoming another popular tumour immunotherapy target following the PDCD1/CD247(PD1/PD‐L1) checkpoint inhibitor. In recent years, a large number of CD47/SIRPα mAbs, fusion proteins, and CD47/SIRPα‐based bispecific antibodies (BsAbs) are undergoing preclinical and clinical trials and have good curative effects in the treatment of haematological tumours and solid tumours. They bring new vitality and hope for the treatment of patients with advanced tumours. This review summarizes the research progress of CD47/SIRPα‐based BsAbs with different targets for tumour treatment. There are 12 and 9 BsAbs in clinical trials and pre‐clinical research, respectively. We report on the mechanism of 15 BsAb molecules with different target and analyse the efficacy and safety of preclinical and clinical trials, discuss the issues that may be faced in the development of CD47‐based BsAbs, and dual‐target molecules, and summarize their development prospects. This review provides a reference for the safety and effectiveness of BsAbs in clinical application and in the future development of antibodies. [ABSTRACT FROM AUTHOR]

Phase noise in bipolar junction transistor (BJT) LC oscillators is examined.

Keywords: rice; endosperm development; SHMT; SAMS2; methylation EN rice endosperm development SHMT SAMS2 methylation 1438 1440 3 08/03/22 20220801 NES 220801 Endosperm stores starch and proteins in cereal crop seeds, providing a major calorie source for human consumption. Compared with WT, CG, CHG and CHH methylations were higher in I flo20-1 i (Figure 1s, Table S2), suggesting a possible role of SHMT4 in endosperm DNA methylation. Given that SHMT4 contains an SHMT domain, we determined whether I SHMT4 i loss affected the SHMT enzymatic activity, and found that more than 64% of SHMT activity was abolished in I flo20-1 i (Figure 1i). [Extracted from the article]

Summary Starch is synthesized as insoluble, semicrystalline particles within plant chloroplast and amyloplast, which are referred to as starch grains (SGs). The size and morphology of SGs in the cereal endosperm are diverse and species–specific, representing a key determinant of the suitability of starch for industrial applications. However, the molecular mechanisms modulating SG size in cereal endosperm remain elusive. Here, we functionally characterized the rice (Oryza sativa) mutant substandard starch grain7 (ssg7), which exhibits enlarged SGs and defective endosperm development. SSG7 encodes a plant–specific DUF1001 domain‐containing protein homologous to Arabidopsis (Arabidopsis thaliana) CRUMPLED LEAF (AtCRL). SSG7 localizes to the amyloplast membrane in developing endosperm. Several lines of evidence suggest that SSG7 functions together with SSG4 and SSG6, known as two regulators essential for SG development, to control SG size, by interacting with translocon‐associated components, which unveils a molecular link between SG development and protein import. Genetically, SSG7 acts synergistically with SSG4 and appears to be functional redundancy with SSG6 in modulating SG size and endosperm development. Collectively, our findings uncover a multimeric functional protein complex involved in SG development in rice. SSG7 represents a promising target gene for the biotechnological modification of SG size, particularly for breeding programs aimed at improving starch quality. [ABSTRACT FROM AUTHOR]

Mesenchymal stem cells (MSCs) are a subset of multifunctional stem cells with self‐renewal and multidirectional differentiation properties that play a pivotal role in tumor progression. MSCs are reported to exert biological functions by secreting specialized vesicles, known as exosomes, with tumor cells. Exosomes participate in material and information exchange between cells and are crucial in multiple physiological and pathological processes. This study provides a comprehensive overview of the roles, mechanisms of action and sources of MSC exosomes in hematological malignancies, and different tumor types. [ABSTRACT FROM AUTHOR]