Publications by authors named "Lifeng Jiang"

AgSbSe is regarded as a promising p-type I-V-VI thermoelectric material owing to the intrinsically low thermal conductivity and high Seebeck coefficient. However, the intrinsic low electrical conductivity impedes the further enhancement of the thermoelectric performance of AgSbSe. Here, a novel approach is initiated to enhance the thermoelectric properties of AgSbSe by combining atomic off-centering with grain boundary engineering.

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Hf alloying at the Zr site is an effective method to suppress the lattice thermal conductivity (κ) toward high thermoelectric (TE) performance for ZrNiSn-based half-Heusler TE materials. However, the high cost of the Hf element limits its large-scale application. Herein, we propose the multisite element modulation strategy for enhancing TE performances.

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Objectives: We examined the association between long-term bisphosphonates use and morphological change in the femur.

Methods: 140 patients (97.1% female, 70.

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A microwave-assisted intramolecular dehydrogenative coupling reaction for the construction of novel γ-carbolines was established. Following Pd(II)/Cu(II)-catalyzed C-H activation, intramolecular cyclization provided γ-carbinone derivatives with various substituents in 57-85% yield. The rapid synthesis of γ-carbolines and wide functional group tolerance are among the advantages of this microwave-assisted approach.

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Background: Traditional Chinese medicine and food deer antler has been extensively used in bone regeneration, but its molecular mechanisms remain poorly understood. Preliminary investigations suggest deer antler contains bioactive compounds that influence osteogenic differentiation and immune microenvironments.

Purpose: To elucidate the molecular mechanisms of deer antler in promoting human mesenchymal stem cell (hMSC) osteogenic differentiation, focusing on JUN downregulation and immune microenvironment modulation using bioinformatics and molecular docking approaches.

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Purpose: Among malignant tumors, non-small cell lung cancer (NSCLC) remains a major threat to human life and health. Studies have illustrated that minichromosome maintenance protein 4 (MCM4) has complex interactions with the progression of many cancers, yet the role and mechanism of MCM4 in NSCLC remain to be elucidated.

Methods: MCM4 expression in NSCLC tissues was assessed using the TCGA database.

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Unlabelled: HIPPO components mammalian Ste20-like protein kinases 1 and 2 (MST1/2) are well described growth suppressors. However, in pulmonary arterial hypertension (PAH), MST1/2 switch their roles and become pro-proliferative and pro-survival molecules, supporting hyper-proliferation of pulmonary artery (PA) smooth muscle cells (PASMCs) and adventitial fibroblasts (PAAFs), remodeling of small PAs, and pulmonary hypertension. Here, we report that MST1/2 promotes hyper-proliferation and apoptosis resistance of human PAH PASMCs and PAAFs by up-regulating cell division cycle protein 20 (CDC20), establishing novel link between HIPPO-MST1/2 and cell cycle regulation in PAH.

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In clinical practice, repairing osteochondral defects (OCDs) is challenging because of the complex cartilage/subchondral bone structure and intricate immunological microenvironment. Here, we identify the crucial role of adaptive immunity dysfunction by revealing that an increase of T helper 17 (Th17) cells exacerbated osteochondral tissue degradation via its pro-inflammatory cytokine interleukin-17 (IL-17) in the early-stage OCDs. Next, we leveraged this adaptive immunity mechanism and combined it with regenerative signals to develop a multifunctional hydrogel system capable of simultaneously tackling immune dysfunction and regenerative deficiency.

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Article Synopsis
  • Lung metastasis is a major cause of cancer death, with few effective treatments; T helper 9 (T9) cells show potential in treating tough cases like lung metastases, but more research on their biology is needed.* ! -
  • The study involved transferring T1, T9, and T17 cells into different cancer models to compare their effectiveness, using techniques like flow cytometry and RNA sequencing to investigate the reasons behind T9 cells' superior ability to reach the lungs.* ! -
  • Results revealed that T9 cells have a stronger ability to target lung metastases due to the CXCR4-CXCL12 pathway, and disabling CXCR4 reduces T9 cells' presence in the lungs, highlighting their
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Grain boundary (GB) engineering includes grain size and GB segregation. Grain size has been proven to affect the electrical properties of Mg(Sb, Bi) at low temperatures. However, the formation mechanism of GB segregation and what kind of GB segregation is beneficial to the performance are still unclear.

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Background: Chemodynamic therapy (CDT) faces challenges of low catalytic ion efficiency and ROS production. We developed a ROS nano-bomb, Cu/ZIF-8@GA-Fe, to address these issues.

Methods: The nano-bomb was synthesized by doping copper into ZIF-8 and assembling Fe and gallic acid (GA).

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Background: Osteosarcoma is a bone tumor that is characterized by high malignancy and a high mortality rate, and that originates from primitive osteoblastic mesenchymal cells and is most common in rapidly growing long bones. PSMD14, also known as RPN11 or POH1, is a member of the JAMM isopeptidase family, which is able to remove the substrate protein ubiquitination label, thereby regulating the stability and function of the substrate protein. In this study, we explored the expression and potential biological significance of the PSMD14 deubiquitinating enzyme in osteosarcoma.

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Pulmonary arterial hypertension (PAH) is a progressive disease characterized by vasoconstriction and remodeling of small pulmonary arteries (PAs). Central to the remodeling process is a switch of pulmonary vascular cells to a proliferative, apoptosis-resistant phenotype. Plasminogen activator inhibitors-1 and -2 (PAI-1 and PAI-2) are the primary physiological inhibitors of urokinase-type and tissue-type plasminogen activators (uPA and tPA), but their roles in PAH are unsettled.

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Article Synopsis
  • * Magnesium has shown potential in protecting cartilage and bone health, but its exact effects on OA are still being researched; the study reveals a beneficial interaction primarily through the PI3K/AKT pathway.
  • * The development of PLGA microspheres loaded with modified magnesium oxide for intra-articular injection demonstrates significant effectiveness in reducing OA symptoms in rat models, indicating promising future clinical applications.
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Pulmonary arterial hypertension (PAH) is a progressive and potentially a rapidly fatal disease characterized by vasoconstriction and remodeling of small pulmonary arteries (PA) leading to increased pulmonary vascular resistance and right heart failure. Central to the remodeling process is a switch of the smooth muscle cells in small PAs (PASMC) to a proliferative, apoptosis-resistant phenotype. There is reason to suspect that the plasminogen activator system may play an important role in the remodeling program in PAH based on its roles in vascular post-injury restenosis, fibrosis, angiogenesis and tumorigenesis.

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Copper as phytonutrient has powerful activity against health diseases. A newly discovered mechanism of cell death that affects energy metabolism by copper ("cuproptosis") can induce multiple cuproptosis-related genes. Hepatocellular carcinoma (HCC) is a poorly prognosed widespread cancer having danger of advanced metastasis.

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Pulmonary arterial hypertension (PAH) is a life-threatening condition characterized by a progressive increase in pulmonary vascular resistance leading to right ventricular failure and often death. Here we report that deficiency of transcription factor GATA6 is a shared pathological feature of PA endothelial (PAEC) and smooth muscle cells (PASMC) in human PAH and experimental PH, which is responsible for maintenance of hyper-proliferative cellular phenotypes, pulmonary vascular remodeling and pulmonary hypertension. We further show that GATA6 acts as a transcription factor and direct positive regulator of anti-oxidant enzymes, and its deficiency in PAH/PH pulmonary vascular cells induces oxidative stress and mitochondrial dysfunction.

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Autophagy and cytoskeleton integrity of chondrocytes are a considered as major factors in the progression of osteoarthritis (OA) involving excessive chondrocyte apoptosis and senescence. Nesfatin-1, an adipokine, has been reported to be closely related to cell autophagy and cytoskeleton malfunction. Our previous study found that nesfatin-1 was highly correlated with OA progress in OA patient, and the expression of nesfatin-1 rises in knee articular tissue, serum and chondrocytes.

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Invasion and metastasis are the leading causes of death of patients with CRC. 5-Fluorouracil is widely used in clinic practice as the basic chemotherapy drug for CRC. However, it is inefficient in inhibiting tumor metastasis.

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Increased proliferation and survival of cells in small pulmonary arteries (PAs) drive pulmonary arterial hypertension (PAH). Because cell growth mediated by the mTOR-containing mTORC1 complex is inhibited by tuberous sclerosis complex 2 (TSC2), we investigated the role of this GTPase-activating protein in PAH pathology. TSC2 abundance was decreased in remodeled small PAs and PA vascular smooth muscle cells (PAVSMCs) from patients with PAH or from rodent pulmonary hypertension (PH) models, as well as PAVSMCs maintained on substrates that reproduced pathology-induced stiffness.

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Esophageal cancer (EC) is an extremely aggressive malignant tumor. Homeobox A10 (HOXA10) is highly expressed and plays an important role in a variety of tumors. However, the function of HOXA10 in EC remains unclear.

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Hyper-proliferation of pulmonary arterial vascular smooth muscle cells (PAVSMC) is an important pathological component of pulmonary vascular remodeling in pulmonary arterial hypertension (PAH). Lipogenesis is linked to numerous proliferative diseases, but its role in PAVSMC proliferation in PAH remains to be elucidated. We found that early-passage human PAH PAVSMC had significant up-regulation of key fatty acids synthesis enzymes ATP-citrate lyase (ACLY), acetyl-CoA carboxylase (ACC), and fatty acid synthase (FASN), and increased unstimulated proliferation compared to control human PAVSMC.

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The involvement of long noncoding RNA (lncRNA) SNHG16 has been reported in several human cancers. Notwithstanding, the role of lncRNA SNHG16 is yet largely unknown in human lung cancer. Consequently, this study was undertaken to investigate the role and therapeutic potential of SNHG16 in human lung cancer.

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