antibodies

535 entries

Posttranslational S-nitrosylation modification regulates HMGB1 secretion and promotes its proinflammatory and neurodegenerative effects

Yang R, Gao Y, Li H, Huang W, Tu D, Yang M, Liu X, Hong JS, Gao HM (2022) Posttranslational S-nitrosylation modification regulates HMGB1 secretion and promotes its proinflammatory and neurodegenerative effects. Cell Rep 40(11):111330. doi: 10.1016/j.celrep.2022.111330

Objective: To demonstrate that S-nitrosylation (SNO) is essential and sufficient for inflammation-elicited HMGB1 secretion.

Summary: Results indicate crucial roles for SNO modification in HMGB1 secretion and HMGB1-Mac1 interaction for inflammatory neurodegeneration, identifying a mechanistic basis for Parkinson’s Disease development.

Usage: Confocal double-label immunofluorescence (1:1000)

Related Products: NO-L-Cysteine Mouse Monoclonal, Conjugated (Cat. #AB-T125)

Bovine bone gelatin-derived peptides: Food processing characteristics and evaluation of antihypertensive and antihyperlipidemic activities

Cao S, Wang Z, Xing L, Zhou L, Zhang W (2022) Bovine bone gelatin-derived peptides: Food processing characteristics and evaluation of antihypertensive and antihyperlipidemic activities. J Agric Food Chem 70(32):9877-9887. doi: 10.1021/acs.jafc.2c02982

Objective: To evaluate the food processing properties of bovine bone gelatin-derived peptides (BGPs) and their effects and mechanisms on hypertension and hypertension complications in spontaneously hypertensive rats.

Summary: BGPs could alleviate hypertension and dyslipidemia in SHRs by inhibiting ACE/Ang II/AT1R and activating the Ang II/AT2R signaling pathway.

Usage: Angiotensin II receptor (AT-2R) Rabbit Polyclonal, affinity-purified

Related Products: Angiotensin II receptor (AT-2R) Rabbit Polyclonal, affinity-purified (Cat. #AB-N28AP)

Stimulation of Akt phosphorylation and glucose transport by metalloporphyrins with peroxynitrite decomposition catalytic activity

Eccardt AM, Pelzel RJ, Bell TP, Fisher JS (2022) Stimulation of Akt phosphorylation and glucose transport by metalloporphyrins with peroxynitrite decomposition catalytic activity. Catalysts 12(8):849. doi: 10.3390/catal12080849

Objective: To determine whether a catalytic action of iron porphyrin compounds would be related to their stimulation of insulin signaling and glucose uptake in C2C12 myotubes.

Summary: Findings suggest that iron porphyrin compounds with both peroxynitrite decomposition activity and peroxidase activity can stimulate insulin signaling and glucose transport in skeletal muscle cells.

Usage: Western blot

Related Products: NO-L-Cysteine Mouse Monoclonal, Conjugated (Cat. #AB-T125)

Spike-mediated ACE2 down-regulation was involved in the pathogenesis of SARS-CoV-2 infection

Gao X, Zhang S, Gou J, Wen Y, Fan L, Zhou J, Zhou G, Xu G, Zhang Z (2022) Spike-mediated ACE2 down-regulation was involved in the pathogenesis of SARS-CoV-2 infection. J Infect 85(4):418-427. doi: 10.1016/j.jinf.2022.06.030

Objective: To determine the role of angiotensin converting enzyme 2 (ACE2) as the receptor for SARS-CoV-2 entry, is also an important regulator of renin-angiotensin system (RAS) homeostasis, which plays an unsettled role in the pathogenesis of COVID-19.

Summary: The downregulation of ACE2 potentially links COVID-19 to the imbalance of RAS.

Usage: Western blot

Related Products: Angiotensin II receptor (AT-1R) Rabbit Polyclonal, affinity-purified (Cat. #AB-N27AP)

Characterizing SERCA function in the hippocampal and prefrontal cortex regions of the brain from C57 and D2 mdx mice

Copeland EN (2022) Characterizing SERCA function in the hippocampal and prefrontal cortex regions of the brain from C57 and D2 mdx mice. Brock University St. Catharines, Ontario, Canada Thesis.

Objective: To investigate the differences between two models of Duchenne muscular dystrophy (DMD): D2 mouse model with young mice showing cognitive deficits, and C57, the traditional mouse model.

Summary: Impaired sarco(endo)plasmic reticulum Ca2+-ATPase (SERCA) function in both C57 and D2 mdx brain – perhaps due to heightened oxidative/nitrosative stress.

Usage: Western blot; NO-L-Cysteine Mouse Monoclonal, Conjugated as a marker of oxidative/nitrosative stress.

Related Products: NO-L-Cysteine Mouse Monoclonal, Conjugated (Cat. #AB-T125)

Purification of fibroblasts from the spiral ganglion

Anacker A, Esser KH, Lenarz T, Paasche G (2022) Purification of fibroblasts from the spiral ganglion. Front Neurol 13:877342. doi: 10.3389/fneur.2022.877342

Objective: To provide a purified preparation of cochlear fibroblasts, which can be used in vitro for further investigations.

Summary: Subcultivation of the primary spiral ganglion cells culture removed the neurons from the culture and increased the fibroblast to glial cell ratio in the preparations. Direct immunolabeling for the Thy1-glycoprotein and the p75NGFR-enabled fluorescence-based cell sorting. This resulted in a cell culture of cochlear fibroblasts with a purity of more than 99%.

Usage: Cell Sorting (1:400)

Related Products: NGFr (mu p75) Rabbit Polyclonal, affinity-purified (Cat. #AB-N01AP)

P2X7 receptor augments LPS-induced nitrosative stress by regulating Nrf2 and GSH levels in the mouse hippocampus

Lee DS, Kim JE (2022) P2X7 receptor augments LPS-induced nitrosative stress by regulating Nrf2 and GSH levels in the mouse hippocampus. Antioxidants (Basel) 11(4):778. doi: 10.3390/antiox11040778

Objective: To elucidate whether P2X7R affects nuclear factor-erythroid 2-related factor 2 (Nrf2) activity/expression and glutathione (GSH) synthesis under nitrosative stress in response to lipopolysaccharide (LPS)-induced neuroinflammation.

Summary: The findings indicate that P2X7R may augment LPS-induced neuroinflammation by leading to Nrf2 degradation, aberrant glutamate-glutamine cycle, and impaired cystine/cysteine uptake, which would inhibit GSH biosynthesis.

Usage: Immunohistochemistry (1:1000)

Related Products: NO-L-Cysteine Mouse Monoclonal, Conjugated (Cat. #AB-T125)

Angiotensin II enhances group 2 innate lymphoid cell responses via AT1a during airway inflammation.

Liu G, Chen Y, Wang Y, Deng X, Xiao Q, Zhang L, Xu H, Han X, Lei A, He J, Li X, Cao Y, Zhou P, He C, Wu P, Jiang W, Tan M, Chen C, Yang Q, Lu L, Deng K, Yao Z, Zhou J (2022) Angiotensin II enhances group 2 innate lymphoid cell responses via AT1a during airway inflammation. J Exp Med 219(3):e20211001. doi: 10.1084/jem.20211001

Objective: To identify angiotensin (Ang) II as a positive regulator of Group 2 innate lymphoid cells (ILC2s).

Summary: Ang II plays a critical role in regulating ILC2 responses and airways inflammation.

Usage: Administration of Ang II (30ug) i.n. or i.p. daily for 5 days.

Related Products: Angiotensin II receptor (AT-1AR) Rabbit Polyclonal, affinity-purified (Cat. #AB-N25AP)

Local renin angiotensin system and sperm DNA fragmentation

Aparicio Prieto MV, Rodríguez Gallego MV, Valdivia Palacín A, Franco Iriarte Y, Hervás Barbara G, Echevarría Orella E, Casis Saenz L (2022) Local renin angiotensin system and sperm DNA fragmentation. Asian J Androl 24(2):139-146. doi: 10.4103/aja202150

Objective: The renin angiotensin system (RAS) appears to influence male fertility at multiple levels. The relationship between the RAS and DNA integrity was analyzed.

Summary: Fragmented DNA spermatozoa have a lower capacity to respond to bioactive RAS peptides.

Usage: Immunocytochemistry

Related Products: Angiotensin II receptor (AT-2R) Rabbit Polyclonal, affinity-purified (Cat. #AB-N28AP)

Fetal tracheal occlusion increases lung basal cells via increased yap signaling

Serapiglia V, Stephens CA, Joshi R, Aydin E, Oria M, Marotta M, Peiro JL, Varisco BM (2022) Fetal tracheal occlusion increases lung basal cells via increased yap signaling. Front Pediatr 9:780166. doi: 10.3389/fped.2021.780166

Objective: To test if lung epithelial cell populations alter after tracheal occlusion (TO) with transcriptomic signatures implicating basal cells.

Summary: TO increases lung epithelial cell nuclear Yap, leading to basal cell expansion.

Usage: Immunohistochemistry (1:1000)

Related Products: NGFr (mu p75) Rabbit Polyclonal, affinity-purified (Cat. #AB-N01AP)

Sarcoplasmic reticulum Ca2+ handling in young DBA/2J vs C57BL/10 mdx models of Duchenne muscular dystrophy

Cleverdon REG, Whitley KC, Marko DM, Hamstra SI, Braun JL, Roy BD, MacPherson REK, Fajardo VA (2021) Sarcoplasmic reticulum Ca2+ handling in young DBA/2J vs C57BL/10 mdx models of Duchenne muscular dystrophy. bioRxiv 2021.10.25.465805. doi: 10.1101/2021.10.25.465805

Objective: To investigate whether sarco(endo)plasmic reticulum Ca2+-ATPase (SERCA) function would differ in muscles from young D2 and C57 mdx mice.

Summary: The study demonstrates that SERCA function is drastically impaired in young D2 mdx mice.

Usage: Western blot

Related Products: NO-L-Cysteine Mouse Monoclonal, Conjugated (Cat. #AB-T125)

Aqueous extract of Solanum nigrum attenuates Angiotensin-II induced cardiac hypertrophy and improves cardiac function by repressing protein kinase C-ζ to restore HSF2 deSUMOlyation and Mel-18-IGF-IIR signaling suppression

Lin HJ, Mahendran R, Huang HY, Chiu PL, Chang YM, Day CH, Chen RJ, Padma VV, Liang-Yo Y, Kuo WW, Huang CY (2021) Aqueous extract of Solanum nigrum attenuates Angiotensin-II induced cardiac hypertrophy and improves cardiac function by repressing protein kinase C-ζ to restore HSF2 deSUMOlyation and Mel-18-IGF-IIR signaling suppression. J Ethnopharmacol 8:114728. doi: 10.1016/j.jep.2021.114728

Objective: To investigate the ability of Solanum nigrum to attenuate Angiotensin II – induced cardiac hypertrophy and improve cardiac function through the suppression of protein kinase PKC-ζ and Mel-18-IGF-IIR signaling leading to the restoration of HSF2 desumolyation.

Summary: The data reveals the cardioprotective effect of S. nigrum inhibiting PKC-ζ with alleviated IGF IIR level in the heart that profoundly remits cardiac hypertrophy for hypertension-induced heart failure.

Usage: Western Blot

Related Products: Angiotensin II receptor (AT-2R) Rabbit Polyclonal, affinity-purified (Cat. #AB-N28AP)

Effects of crowding stress on the hypothalamo-pituitary-interrenal axis of the self-fertilizing fish, Kryptolebias marmoratus

Amano M, Amiya N, Fukushima K, Hagio H, Yamamoto N, Sakakura Y (2022) Effects of crowding stress on the hypothalamo-pituitary-interrenal axis of the self-fertilizing fish, Kryptolebias marmoratus. Comp Biochem Physiol A Mol Integr Physiol 264:111110. doi: 10.1016/j.cbpa.2021.111110

Objective: To test whether crowding stress affects the hypothalamo-pituitary-interrenal (HPI) axis of the self-fertilizing fish, Kryptolebias marmoratus.

Summary: The number of CRH-ir cell bodies and cortisol levels were significantly higher in paired fish. The results indicate that crowding stress affects the HPI axis in K. marmoratus which thrive in small burrows with limited water volume.

Usage: Immunohistochemistry (1:2000)

Related Products: Corticotropin Releasing Hormone Rabbit Polyclonal (Cat. #AB-02)

ΔNp63 regulates a common landscape of enhancer associated genes in non-small cell lung cancer

Napoli M, Wu SJ, Gore BL, Abbas HA, Lee K, Checker R, Dhar S, Rajapakshe K, Tan AC, Lee MG, Coarfa C, Flores ER (2022) ΔNp63 regulates a common landscape of enhancer associated genes in non-small cell lung cancer. Nat Commun 13(1):614. doi: 10.1038/s41467-022-28202-1

Objective: To investigate the underlying mechanistic role regulated by ΔNp63 in lung cancer development.

Summary: Use of a ΔNp63-specific conditional knockout mouse model and xenograft models of lung adenocarcinoma (LUAD) and squamous cell carcinoma (LUSC). Results show that ΔNp63 promotes non-small cell lung cancer by maintaining the lung stem cells necessary for lung cancer cell initiation and progression in quiescence. ΔNp63 regulates enhancers of cell identity genes.

Usage: Immunofluorescence and IHC (1:100)

Related Products: NGFr (mu p75) Rabbit Polyclonal, affinity-purified (Cat. #AB-N01AP)

Expression pattern of brain-derived neurotrophic factor and its associated receptors: Implications for exogenous neurotrophin application

Schulze J, Staecker H, Wedekind D, Lenarz T, Warnecke A (2022) Expression pattern of brain-derived neurotrophic factor and its associated receptors: Implications for exogenous neurotrophin application. Hear Res 413:108098. doi: 10.1016/j.heares.2020.108098

Objective: To investigate the mechanisms of brain-derived neurotrophic factor (BDNF) in the inner ear, by analyzing the expression of mature BDNF (mBDNF), its proform proBDNF and their respective receptors the low affinity p75 neurotrophin receptor (p75NTR) and the neurotrophic receptor tyrosine kinase 2 (NTRK2).

Summary: Treatment with proBDNF is not toxic for spiral ganglion neuron (SGN) survival but simultaneously not protective. However, combined treatment of mBDNF and proBDNF maintained and perhaps slightly increased the protective effect of mBDNF.

Usage: Immunohistochemistry (1:250); AB-N01AP: NGFr (mu p75) Rabbit Polyclonal

Related Products: NGFr (mu p75) Rabbit Polyclonal, affinity-purified (Cat. #AB-N01AP)

Mouse lung organoid responses to reduced, increased, and cyclic stretch

Joshi R, Batie MR, Fan Q, Varisco BM (2022) Mouse lung organoid responses to reduced, increased, and cyclic stretch. Am J Physiol Lung Cell Mol Physiol 322(1):L162-L173. doi: 10.1152/ajplung.00310.2020

Objective: To test two mouse lung organoid mechanotransductive models to address deficiencies in cell culture models.

Summary: Cyclic stretch increased TGF-β and integrin-mediated signaling, with upstream analysis indicating roles for histone deacetylases, microRNAs, and long noncoding RNAs.

Usage: Immunostaining

Related Products: NGFr (mu p75) Rabbit Polyclonal, affinity-purified (Cat. #AB-N01AP)

Hypertensive effects of transforming growth factor-β1 in vascular smooth muscles cells from spontaneously hypertensive rats are mediated by sulfatase 2

Kim HS, Kim HY (2022) Hypertensive effects of transforming growth factor-β1 in vascular smooth muscles cells from spontaneously hypertensive rats are mediated by sulfatase 2. Cytokine 150:155754. doi: 10.1016/j.cyto.2021.155754

Objective: To examine the role of extracellular sulfatases on TGF-β1-induced effects associated with the expression of mediators related to hypertension in vascular smooth muscle cells (VSMCs) from spontaneously hypertensive rats (SHR).

Summary: The hypertensive effects of TGF-β1 through the AT1 R pathway were mainly dependent on Sulf2 activity in SHR VSMCs. Taken together, these results suggest that Sulf2, but not Sulf1, plays a major role in mediating the increased effects of TGF-β1 in hypertensive VSMCs.

Usage: Angiotensin II receptor (AT-2R) Rabbit Polyclonal, affinity-purified

Related Products: Angiotensin II receptor (AT-2R) Rabbit Polyclonal, affinity-purified (Cat. #AB-N28AP)

Characterizing SERCA function in murine skeletal muscles after 35-37 days of spaceflight

Braun JL, Geromella MS, Hamstra SI, Messner HN, Fajardo VA (2021) Characterizing SERCA function in murine skeletal muscles after 35-37 days of spaceflight. Int J Mol Sci 22(21):11764. doi: 10.3390/ijms222111764

Objective: To investigate SERCA function, SERCA regulatory protein content, and reactive oxygen/nitrogen species (RONS) protein adduction in murine skeletal muscle after 35–37 days of spaceflight.

Summary: Spaceflight affects SERCA function differently between the soleus and tibialis anterior.

Usage: Western blot (20 mg)

Related Products: NO-L-Cysteine Mouse Monoclonal, Conjugated (Cat. #AB-T125)

Toll-like receptor 4-mediated enteric glia loss is critical for the development of necrotizing enterocolitis

Kovler ML, Gonzalez Salazar AJ, Fulton WB, Lu P, Yamaguchi Y, Zhou Q, Sampah M, Ishiyama A, Prindle T Jr, Wang S, Jia H, Wipf P, Sodhi CP, Hackam DJ (2021) Toll-like receptor 4-mediated enteric glia loss is critical for the development of necrotizing enterocolitis. Sci Transl Med 13(612):eabg3459. doi: 10.1126/scitranslmed.abg3459

Objective: Hypothesized that enteric glia loss in the premature intestine could lead to dysmotility, exaggerated Toll-like receptor 4 (TLR4) signaling and necrotizing enterocolitis (NEC) development.

Summary: TLR4-induced enteric glia loss leads to experimental NEC through Brain Derived Neurotrophic Factor (BDNF) loss, which can be treated with compound ‘J11.’

Usage: Immunofluorescence

Related Products: NGFr (mu p75) Rabbit Polyclonal (Cat. #AB-N01)

The protective effects of AT2R agonist, CGP42112A, against angiotensin ii-induced oxidative stress and inflammatory response in astrocytes: role of AT2R/PP2A/NFκB/ROS signaling

Bhat SA, Fatima Z, Sood A, Shukla R, Hanif K (2021) The protective effects of AT2R agonist, CGP42112A, against angiotensin ii-induced oxidative stress and inflammatory response in astrocytes: role of AT2R/PP2A/NFκB/ROS signaling. Neurotox Res 39(6):1991-2006. doi: 10.1007/s12640-021-00403-4

Objective: To evaluate the role and molecular mechanism of AT2R agonist CGP against Angiotensin II-induced astrocytic activation in primary astrocytes, and in a rat model of hypertension.

Summary: AT2R activation by CGP abrogated Ang II-induced astrocytic activation, by mitigating the ROS production, mitochondrial dysfunction, IκB-α degradation, NFκB nuclear translocation, and release of TNF-α in astrocytes.

Related Products: Angiotensin II receptor (AT-2R) Rabbit Polyclonal, affinity-purified (Cat. #AB-N28AP)

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