更新于：2024-05-01
netrin-1
神经轴突导向因子1
更新于：2024-05-01
基本信息
别名 Epididymis tissue protein Li 131P、netrin 1、Netrin-1 + [2] |
简介 Netrins control guidance of CNS commissural axons and peripheral motor axons. Its association with either DCC or some UNC5 receptors will lead to axon attraction or repulsion, respectively. Binding to UNC5C might cause dissociation of UNC5C from polymerized TUBB3 in microtubules and thereby lead to increased microtubule dynamics and axon repulsion (PubMed:28483977). Involved in dorsal root ganglion axon projection towards the spinal cord (PubMed:28483977). It also serves as a survival factor via its association with its receptors which prevent the initiation of apoptosis. Involved in tumorigenesis by regulating apoptosis (PubMed:15343335). |
关联
靶点 |
作用机制 |
在研机构 |
原研机构 |
在研适应症 |
非在研适应症 |
最高研发阶段 |
首次获批国家/地区 |
首次获批日期 |
A Pilot Study of Perioperative NP137 and FOLFIRINOX in Resectable Pancreatic Cancer
A Phase I/II Study to Evaluate the Safety Clinical and Biological Activity of a Humanized Monoclonal Antibody Targeting Netrin-1 (NP137) in Combination With Standard AZACITIDINE+ VENETOCLAX in Patients With Refractory Acute Myeloid Leukemia
Study Investigating the Association of NP137 With mFOLFIRINOX in Locally Advanced Pancreatic Ductal Adenocarcinoma
100 项与 netrin-1 相关的临床结果
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100 项与 netrin-1 相关的转化医学
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2024-02-19Cell reports
Acetylcholine synergizes with netrin-1 to drive persistent firing in the entorhinal cortex.
Article
作者: Stephen D Glasgow ; Teddy A J Fisher ; Edwin W Wong ; Kevin Lançon ; Kira M Feighan ; Ian V Beamish ; Julien Gibon ; Philippe Séguéla ; Edward S Ruthazer ; Timothy E Kennedy
The ability of the mammalian brain to maintain spatial representations of external or internal information for short periods of time has been associated with sustained neuronal spiking and reverberatory neural network activity in the medial entorhinal cortex. Here, we show that conditional genetic deletion of netrin-1 or the netrin receptor deleted-in-colorectal cancer (DCC) from forebrain excitatory neurons leads to deficits in short-term spatial memory. We then demonstrate that conditional deletion of either netrin-1 or DCC inhibits cholinergic persistent firing and show that cholinergic activation of muscarinic receptors expressed by entorhinal cortical neurons promotes persistent firing by recruiting DCC to the plasma membrane. Together, these findings indicate that normal short-term spatial memory function requires the synergistic actions of acetylcholine and netrin-1.
2024-02-16Journal of clinical medicine
Paroxysmal Dystonic Posturing Mimicking Nocturnal Leg Cramps as a Presenting Sign in an Infant with DCC Mutation, Callosal Agenesis and Mirror Movements.
Article
作者: Adriana Prato ; Lara Cirnigliaro ; Federica Maugeri ; Antonina Luca ; Loretta Giuliano ; Giuseppina Vitiello ; Edoardo Errichiello ; Enza Maria Valente ; Ennio Del Giudice ; Giovanni Mostile ; Renata Rizzo ; Rita Barone
Background/Objectives: Pathogenic variants in the deleted in colorectal cancer gene (DCC), encoding the Netrin-1 receptor, may lead to mirror movements (MMs) associated with agenesis/dysgenesis of the corpus callosum (ACC) and cognitive and/or neuropsychiatric issues. The clinical phenotype is related to the biological function of DCC in the corpus callosum and corticospinal tract development as Netrin-1 is implicated in the guidance of developing axons toward the midline. We report on a child with a novel inherited, monoallelic, pathogenic variant in the DCC gene. Methods: Standardized measures and clinical scales were used to assess psychomotor development, communication and social skills, emotional and behavioural difficulties. MMs were measured via the Woods and Teuber classification. Exome sequencing was performed on affected and healthy family members. Results: The patient's clinical presentation during infancy consisted of paroxysmal dystonic posturing when asleep, mimicking nocturnal leg cramps. A brain magnetic resonance imaging (MRI) showed complete ACC. He developed typical upper limb MMs during childhood and a progressively evolving neuro-phenotype with global development delay and behavioural problems. We found an intrafamilial clinical variability associated with DCC mutations: the proband's father and uncle shared the same DCC variant, with a milder clinical phenotype. The atypical early clinical presentation of the present patient expands the clinical spectrum associated with DCC variants, especially those in the paediatric age. Conclusions: This study underlines the importance of in-depth genetic investigations in young children with ACC and highlights the need for further detailed analyses of early motor symptoms in infants with DCC mutations.
2024-02-10Bioconjugate chemistry
Peptide-Conjugated MRI Probe Targeted to Netrin-1, a Novel Metastatic Breast Cancer Biomarker.
Article
作者: Clémentine Moreau ; Tea Lukačević ; Agnès Pallier ; Julien Sobilo ; Samia Aci-Sèche ; Norbert Garnier ; Sandra Même ; Éva Tóth ; Sara Lacerda
Despite significant progress in cancer imaging and treatment over the years, early diagnosis and metastasis detection remain a challenge. Molecular magnetic resonance imaging (MRI), with its high resolution, can be well adapted to fulfill this need, requiring the design of contrast agents which target specific tumor biomarkers. Netrin-1 is an extracellular protein overexpressed in metastatic breast cancer and implicated in tumor progression and the appearance of metastasis. This study focuses on the design and preclinical evaluation of a novel Netrin-1-specific peptide-based MRI probe, GdDOTA-KKTHDAVR (Gd-K), to visualize metastatic breast cancer. The targeting peptide sequence was identified based on the X-ray structure of the complex between Netrin-1 and its transmembrane receptor DCC. Molecular docking simulations support the probe design. In vitro studies evidenced submicromolar affinity of Gd-K for Netrin-1 (KD = 0.29 μM) and good MRI efficacy (proton relaxivity, r1 = 4.75 mM-1 s-1 at 9.4 T, 37 °C). In vivo MRI studies in a murine model of triple-negative metastatic breast cancer revealed successful tumor visualization at earlier stages of tumor development (smaller tumor volume). Excellent signal enhancement, 120% at 2 min and 70% up to 35 min post injection, was achieved (0.2 mmol/kg injected dose), representing a reasonable imaging time window and a superior contrast enhancement in the tumor as compared to Dotarem injection.
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