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Recent evidence of prion-like propagation of α-synuclein (α-syn) into neighboring neurons set up a paradigm to elucidate the mechanism of progression of Parkinson's disease (PD) and to develop therapeutic strategies. Here, we show that FcγRIIB expressed in neurons functions as a receptor for α-syn fibrils and mediates cell-to-cell transmission of α-syn. SHP-1 and 2 are activated downstream by α-syn fibrils through FcγRIIB and play an important role in cell-to-cell transmission of α-syn. Also, taking advantage of a co-culture system, we show that cell-to-cell transmission of α-syn induces intracellular Lewy body-like inclusion body formation and that the FcγRIIB/SHP-1/2 signaling pathway is involved in it. Therefore, the FcγRIIB-SHP-1/-2 signaling pathway may be a therapeutic target for the progression of PD. The in vitro system is an efficient tool for further high-throughput screening that can be used for developing a therapeutic intervention in PD.
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http://dx.doi.org/10.1016/j.celrep.2017.12.009 | DOI Listing |
Int J Gen Med
September 2025
Suzhou Medical College of Soochow University, Suzhou, Jiangsu, People's Republic of China.
Purpose: The fourth most common cause of cancer-related deaths in women is cervical cancer. Though treatment of early-stage cervical cancer is often effective, middle and advanced stage cervical cancer is hard to treat and prone to recurrence. We sought to explore the mechanism underlying cervical cancer progression to identify new therapeutic approaches.
View Article and Find Full Text PDFResearch (Wash D C)
September 2025
State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
Triple-negative breast cancer (TNBC) is the most aggressive breast cancer subtype, characterized by a high propensity for metastasis, poor prognosis, and limited treatment options. Research has demonstrated a substantial correlation between the expression of protein arginine N-methyltransferase 1 (PRMT1) and enhanced proliferation, metastasis, and poor outcomes in TNBC. However, the specific role of PRMT1 in lung metastasis and chemoresistance remains unclear.
View Article and Find Full Text PDFInt J Nanomedicine
September 2025
Department of Infectious Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China.
The STING pathway has emerged as a therapeutic target in tumor immunotherapy due to its ability to induce interferon responses, enhance antigen presentation and activate T cells. Despite its therapeutic potential, STING pathway-based tumor immunotherapy has been limited by challenges in poor cellular delivery, rapid degradation of STING agonists, and potential systemic toxicity. Recently, advancements in nanotechnology have tried to overcome these limitations by providing platforms for more accurate and efficient targeted delivery of agonists, more moderate sustained STING pathway activation, and more efficient immune presentation and anti-tumor immune response.
View Article and Find Full Text PDFExp Ther Med
November 2025
Department of Obstetrics and Gynecology, Affiliated Maternity and Child Health Care Hospital of Nantong University, Nantong, Jiangsu 226007, P.R. China.
Gestational diabetes mellitus (GDM), a type of diabetes mellitus occurring in pregnant women, increases the risk of birth trauma. Solute carrier family 2 member 4 (SLC2A4) polymorphism is notably associated with GDM susceptibility; however, the mechanism is unknown. In the present study, HTR-8/SVneo cells were treated with high glucose concentrations and transfected with SLC2A4 and Forkhead box O (FoxO)1 to investigate their roles in the insulin (INS) resistance of GDM trophoblast cells.
View Article and Find Full Text PDFExp Ther Med
November 2025
School of Basic Medical Sciences, Binzhou Medical University, Yantai, Shandong 264003, P.R. China.
Acute kidney injury (AKI) is a group of common clinical syndromes characterized by a rapid decline in renal function over a short period of time. At present, the treatment methods are limited, and research is needed to identify drugs that could alleviate renal ischemia-reperfusion (I/R) injury. Tetramethylpyrazine (TMP) is a bioactive alkaloid extracted from the Chinese herbal medicine Chuanxiong.
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