antibodies

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 PMID: 35793758

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)

Li S, Li W, Yuan J, Bullova P, Wu J, Zhang X, Liu Y, Plescher M, Rodriguez J, Bedoya-Reina OC, Jannig PR, Valente-Silva P, Yu M, Henriksson MA, Zubarev RA, Smed-Sörensen A, Suzuki CK, Ruas JL, Holmberg J, Larsson C, Christofer Juhlin C, von Kriegsheim A, Cao Y, Schlisio S (2022) Impaired oxygen-sensitive regulation of mitochondrial biogenesis within the von Hippel-Lindau syndrome. Nat Metab 4(6):739-758. doi: 10.1038/s42255-022-00593-x PMID: 35760869

Objective: To investigate how mitochondria sense oxygen levels.

Summary: The authors report an oxygen-sensitive regulation of TFAM, an activator of mitochondrial transcription and replication, whose alteration is linked to tumours arising in the von Hippel–Lindau syndrome. The data obtained from this study offer pharmacological avenues to sensitize therapy-resistant VHL tumours by focusing on the mitochondria.

Usage: Immunoprecipitation (IP), Immunoblot (IB); 1:1000

Related Products: Trans-4-Hydroxy-L-Proline Rabbit Polyclonal, Conjugated (Cat. #AB-T044)

Liu AL, Liu YF, Wang G, Shao YQ, Yu CX, Yang Z, Zhou ZR, Han X, Gong X, Qian KW, Wang LQ, Ma YY, Zhong YM, Weng SJ, Yang XL (2022) The role of ipRGCs in ocular growth and myopia development. Sci Adv 8(23):eabm9027. doi: 10.1126/sciadv.abm9027 PMID: 35675393

Objective: To provide evidence in a mouse model to demonstrate that intrinsically photosensitive retinal ganglion cells (ipRGCs) make a considerable contribution to the establishment of the ocular refractive system.

Summary: The involvement of ipRGCs in mouse refractive development was investigated with selective ipRGC ablation using Melanopsin-SAP. The authors found that ipRGCs are substantially involved in ocular refractive development in mice, which is crucial for image-forming visual functions. This conclusion is derived from the considerable myopic refractive shifts induced in the eyes when most ipRGCs were ablated, yet they exhibited hyperopic shifts when ipRGCs were selectively activated.

Usage: C57BL/6 mice received intravitreal injection of Melanopsin-SAP (IT-44) at three concentrations [200, 400, and 800 ng, all suspended in 0.75 µl of 0.1 M PBS (pH 7.4)] at postnatal day 18; control eyes received the same volume of PBS or 400 ng of nonspecific antibody–conjugated saporin (IgG-SAP, also in 0.75 µl of PBS).

Related Products: Melanopsin-SAP (Cat. #IT-44), Rabbit IgG-SAP (Cat. #IT-35), Melanopsin Rabbit Polyclonal, affinity-purified (Cat. #AB-N39)

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. PMID: 0

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)

Sakarin S, Surachtpong SD, Rungsipipat A (2022) Expression of proteins related to serotonin signaling in the lungs of dogs affected with pulmonary hypertension secondary to degenerative mitral valve disease. Thai J Vet Med 52(suppl.):31-33. doi: 10.5555/20220315534

Objective: To detect the expression of proteins related to the serotonin pathway in the lung tissue of dogs affected with pulmonary hypertension (PH) secondary to degenerative mitral valve disease (DMVD) compared to DMVD and healthy control dogs.

Summary: Proteins related to the serotonin signaling pathway were increased in lung tissue of DMVD dogs with PH, suggesting that the serotonin signaling pathway may be involved with the pathogenesis of PH. Inhibition of proteins related to the serotonin signaling pathway may be a target of interest or provide a novel therapeutic approach in PH secondary to DMVD.

Usage: SERT Mouse Monoclonal (Cat. #AB-N40) Immunohistochemistry (1:200).

Related Products: SERT Mouse Monoclonal (Cat. #AB-N40)

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 PMID: 35493807

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)

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 PMID: 35453462

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)

Sabbah S, Papendorp C, Behrendt I, Rasras H, Cann J, Leyrer ML, Koplas E, Beltoja M, Etebari C, Gunesch AN, Carrete L, Kim MT, Manoff G, Bhatia-Lin A, Zhao T, Dowling H, Briggman KL, Berson DM (2022) Intrinsically photosensitive retinal ganglion cells evade temporal filtering to encode environmental light intensity. bioRxiv 2022.04.09.487733. doi: 10.1101/2022.04.09.487733

Related Products: Melanopsin Rabbit Polyclonal (Cat. #AB-N38)

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 PMID: 35044462

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)

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 PMID: 34494558

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)