DAB2 antibody
- Known as:
- DAB2 (anti-)
- Catalog number:
- orb101855
- Product Quantity:
- EUR
- Category:
- -
- Supplier:
- Biorbyt biorb
- Gene target:
- DAB2 antibody
Related genes to: DAB2 antibody
- Gene:
- DAB2 NIH gene
- Name:
- DAB adaptor protein 2
- Previous symbol:
- -
- Synonyms:
- DOC-2
- Chromosome:
- 5p13.1
- Locus Type:
- gene with protein product
- Date approved:
- 1998-07-29
- Date modifiied:
- 2019-01-31
Related products to: DAB2 antibody
Related articles to: DAB2 antibody
- Preeclampsia (PE) is a pregnancy-specific multisystem disorder and a leading cause of maternal and perinatal morbidity and mortality worldwide. Despite the widely accepted two-stage model involving placental dysfunction and maternal systemic inflammation, the precise cellular and molecular mechanisms underlying its pathogenesis remain incompletely understood. In recent years, single-cell RNA sequencing (scRNA-seq) has emerged as a transformative technology capable of resolving transcriptional heterogeneity at unprecedented resolution, offering new insights into the complex cellular landscape of the maternal-fetal interface. This review systematically summarizes the application of scRNA-seq in advancing the understanding of PE pathogenesis. We first introduce the technical principles and advantages of scRNA-seq over bulk sequencing methods. Subsequently, we highlight key findings from scRNA-seq studies of the normal placenta and decidua, establishing a reference for cellular composition and trophoblast differentiation trajectories. We then focus on studies of PE placentas, which have revealed distinct dysfunction in trophoblast subpopulations-including impaired differentiation, invasion, and accelerated senescence-and have identified novel regulatory molecules such as BHLHE40, NDRG1, and DAB2. Additionally, we discuss scRNA-seq-derived insights into immune dysregulation at the maternal-fetal interface, including altered NK cell subsets, macrophage polarization, and disruption of immune tolerance mediated by molecules such as HLA-F and JUNB. Finally, we explore the translational potential of scRNA-seq in identifying novel biomarkers, constructing predictive models, and enabling disease subtyping for precision medicine. By capturing cell-specific transcriptional changes, scRNA-seq provides a powerful framework for deciphering the complexity of PE and holds promise for improving its prediction, diagnosis, and therapy. - Source: PubMed
Publication date: 2026/06/11
Pan XiaojingLuo Ting - The mouse adrenal gland is encapsulated by a mesenchymal cell layer (capsule) and contains an underlying cortex organized into distinct concentric zones with specialized endocrine functions: the zona glomerulosa (zG), which produces aldosterone, and the zona fasciculata (zF), which produces corticosterone. The adrenal medulla, located at the center of the gland, produces catecholamines. Mechanistic studies of cells from each adrenocortical zone have been limited by the absence of in vitro models that preserve their zone-specific molecular, cellular, and functional characteristics. To overcome this limitation, a fractionation approach was developed using microdissection of adult mouse adrenal glands. This method separates adrenal cells from male mice into a zG-enriched outer fraction (OF), containing capsule and zG cells, and a zF-enriched inner fraction (IF), which contains zF and medullary cells. These fractions were used to generate two-dimensional (2D) primary cultures enriched for either zG or zF cells. Gene expression analysis confirmed that the zG-enriched cultures express high levels of zG markers (Cyp11b2, Dab2, and Shh), along with increased Wnt/β-catenin pathway markers (Wnt4, Lef1). In contrast, zF-enriched cultures exhibited higher expression of zF markers (Cyp11b1 and Akr1b7) and lower levels of Wnt/β-catenin pathway markers, consistent with a zF transcriptional signature. Expression of steroidogenic markers (Nr5a1, Star) validated the adrenocortical origin of both cell fractions. Tyrosine hydroxylase indicates the presence of adrenal medullary cells in zF-enriched cultures. Functionally, zG-enriched cultures produced aldosterone under basal conditions and showed increased production in response to angiotensin II, potassium, and adrenocorticotropic hormone (ACTH). Conversely, zF-enriched cultures produced corticosterone at baseline and exhibited increased output in response to ACTH stimulation. Overall, this protocol represents a robust, reproducible, and biologically relevant in vitro model for studying adrenal cortex biology. This system enables zone-specific investigation of signaling pathways, molecular mechanisms, and physiological responses. - Source: PubMed
Publication date: 2026/05/08
Kremer Jean LucasBorges Kleiton SilvaRibeiro ClaudioBerber MesutHaykir BetulCarlone Diana LLotfi Claudimara Ferini PaciccoBreault David T - Despite the expression of multiple transcript isoforms from a gene, conventional gene expression analyses assume that a single transcript is expressed from each gene. We analyzed the transcript isoforms expressed in gonadotropin-induced mouse mural and cumulus granulosa cells (mGCs and cGCs) isolated from antral follicles to elucidate the potential mechanism of differentiation. Considering that either a single transcript or multiple isoforms are expressed from genes, we identified differential expression of about 70% of transcripts between mGCs and cGCs. Although the differential expressions were similar, the single-transcript-wise differentially expressed genes did not correlate with their corresponding differentially expressed transcript isoforms. We identified transcript isoforms of key transcriptional regulators in ovaries, including Chd1, Ezh2, Kdm5a/5b, Gata4, Esr2, Fos, Myc, and Ybx1, that were not identified in single-transcript-based analyses. Further analysis revealed a transcript switch in more than 30% of the differentially expressed isoforms. While one or more transcript isoforms of Cebpa, Dnmt3a, Pgr, Rest, Runx1, and Sirt1 were switched off, those of Brd7, Chd1, Med21, Nfkbia, Rbm39, Suv39h2, Tcf12, Xist, and Ybx3 were switched on in cGCs. Interestingly, several genes, including Dab2, Ezh2, Gata4, Gnas, Gtf2i, Klf10, Setdb1, and Sp3, exhibited at least one isoform that was switched off and another that was switched on in cGCs. Transcript switching was primarily due to alternative splicing, followed by alternative transcription start sites and polyadenylation sites. We also identified differential expression of the potential regulators of such transcript switching in cGCs. Our results suggest that transcript switching may play an important role in mural and cumulus granulosa differentiation, a key insight that would remain unknown without mRNA isoform analysis. - Source: PubMed
Publication date: 2026/05/23
Shila SharminPei Grace JBahadursingh ElizabethPeramsetty NikiDahiya VineshMarsh Courtney AThiyagarajan RamkumarZhang MeijiaFields Patrick ERumi M A Karim - Epstein-Barr virus (EBV) is a complex human herpesvirus characterized by a protein core, a 162-capsomer nucleocapsid, and a glycoprotein-spiked envelope, which facilitates its transmission through bodily fluids. The virus primarily targets B cells and oropharyngeal epithelial cells, establishing infection through viral gp350/220 binds to the host CD21/CR2 receptor, followed by gp42 interacting with HLA class II molecules to trigger endocytosis. Once infection is established, EBV utilizes two main types of encoded microRNAs to regulate the host environment. The BHRF1 miRNAs are expressed early to promote rapid cell proliferation and prevent B-lymphocyte apoptosis by targeting pro-apoptotic proteins. Meanwhile, the BART miRNA cluster, including miR-BART1, miR-BART2, miR-BART3, miR-BART4, miR-BART7, miR-BART8, and miR-BART22, which are robustly expressed in epithelial malignancies like nasopharyngeal and gastric carcinomas, has been found to significantly suppress caspase-3, a central executioner of apoptosis and target host immune mediators like CXCL-11 to stifle antiviral responses. Moreover, Min et al. discovered that miR-BART1-3p inhibited the expression of Disabled homolog 2 (DAB2), a tumor suppressor gene linked to apoptosis, in EBVaGC cells, allowing them to evade programmed cell death. EBV's ability to cycle between B cells and epithelial cells, along with its association with the modulation of host cell processes and immune responses, highlights the mechanisms by which EBV establishes infection and contributes to oncogenesis. - Source: PubMed
Publication date: 2026/05/16
Abu-Khudir RashaDoghish Ahmed SMohamed Hend HRizk Nehal IFahmy Haidy AdelFayez Salma ZakiAshraf YaraElgohary AyatallahSelim Hager NasserAbdelaziz Moustafa MahmoudMohammed Osama AAbdel Mageed Sherif SHamad Rabab SMansour Reda M - The fixation of dissolved inorganic carbon (DIC) such as CO and bicarbonate is fundamental to the global primary production. Many autotrophs depend on a diversity of CO-concentrating mechanisms (CCMs) to overcome the inefficiency of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) and the limited supply of DIC. While cyanobacterial CCMs are well characterized, analogous systems in chemolithoautotrophs, specifically active DIC uptake systems have long been overlooked. Here, we present the cryo-EM analysis of DAB2, an essential membrane protein complex for CO₂ uptake in Halothiobacillus neapolitanus. The cytoplasmic subunit DabA2 displays a β-carbonic anhydrase-like fold, while the transmembrane subunit DabB2 resembles the proton-conducting subunits of respiratory Complex I. Purified DAB2 binds CO₂ independent of protonmotive force (PMF); however, did not spontaneously hydrate CO. Structural analysis reveals a deeply buried active site only accessible via gated substrate tunnels, suggesting substrate access and catalysis are tightly regulated. A distinct transmembrane helix of DabA2 forms the proton pathway and potentially couples proton translocation to catalysis. These features define a vectorial CO hydration mechanism that prohibits reverse bicarbonate dehydration. Our findings establish DAB2 as a prototype of a family of PMF-driven carbonic anhydrases, elucidating a distinct strategy for CO₂ capture in non-photosynthetic autotrophs. - Source: PubMed
Publication date: 2026/05/05
Lo Yat KeiSeletskiy MichaelBohn StefanDeobald DarjaGlatter TimoStripp Sven TSchuller Jan M