References

Rajakumar N, Leung LS, Ma J, Rajakumar B, Rushlow W (2004) Altered neurotrophin receptor function in the developing prefrontal cortex leads to adult-onset dopaminergic hyperresponsivity and impaired prepulse inhibition of acoustic startle. Biol Psychiatry 55(8):797-803. doi: 10.1016/j.biopsych.2003.12.015

Summary: Neurodevelopmental abnormalities are suspected to play a role in the pathogenesis of schizophrenia. The authors injected 0.75 µl of 192-Saporin (Cat. #IT-01) bilaterally into the prefrontal cortex of postnatal day 1 rats. The rats were then evaluated in tests designed to measure behavioral abnormalities relevant to schizophrenia. The behavior of the treated animals indicated that damage to p75-receptor-expressing neurons in the prefrontal cortex may be involved in the manifestation of schizophrenia.

Related Products: 192-IgG-SAP (Cat. #IT-01)

Erhardt C, Galani R, Jeltsch H, Cassel JC, Klosen P, Menet JS, Pevet P, Challet E (2004) Modulation of photic resetting in rats by lesions of projections to the suprachiasmatic nuclei expressing p75 neurotrophin receptor. Eur J Neurosci 19(7):1773-1788. doi: 10.1111/j.1460-9568.2004.03281.x

Summary: The circadian clock in mammals is located within suprachiasmatic nuclei of the hypothalamus (SCN). The authors investigated how cholinergic afferents from the basal forebrain may be involved in control of the circadian clock. 3 µg of 192-Saporin (Cat. #IT-01) was injected intracerebroventricularly, or 1 µg was injected in SCN of rats, and various aspects of the circadian system were investigated. The data suggest that the forebrain cholinergic system is involved in the phase resetting properties of light.

Related Products: 192-IgG-SAP (Cat. #IT-01)

Pehar M, Cassina P, Vargas MR, Castellanos R, Viera L, Beckman JS, Estévez AG, Barbeito L (2004) Astrocytic production of nerve growth factor in motor neuron apoptosis: implications for amyotrophic lateral sclerosis. J Neurochem 89(2):464-473. doi: 10.1111/j.1471-4159.2004.02357.x PMID: 15056289

Summary: The role of p75-mediated activity evaluated with p75NTR blocking antibody. Motor neuron loss induced by reactive astrocytes was prevented by blocking the p75NTR.

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

Smith J (2004) Featured Article: 192 IgG-saporin-induced lesions identify an inhibitory role in cocaine reward for cholinergic neuronal systems in the diagonal band and ventral pallidum. Targeting Trends 5(2)

Related Products: 192-IgG-SAP (Cat. #IT-01)

Read the featured article in Targeting Trends.

See Also:

• Smith JE et al. Involvement of cholinergic neuronal systems in intravenous cocaine self-administration. Neurosci Biobehav Rev 27(8):841-850, 2004.

Nattie EE, Li A, Richerson GB, Lappi DA (2004) Medullary serotonergic neurons and adjacent neurons that express neurokinin-1 receptors are both involved in chemoreception in vivo. J Physiol 556(1):235-253. doi: 10.1113/jphysiol.2003.059766 PMID: 14724193

Summary: The retrotrapezoid nucleus contains neurokinin-1 receptor (NK-1r)-expressing neurons that are involved in chemoreception. NK-1r-expressing neurons are also present in areas that contain medullary serotonergic neurons. These serotonergic neurons have been shown to be chemosensitive in vitro. With two 100-nl injections of 1 µM SP-SAP (Cat. #IT-07), anti-SERT-SAP (Cat. #IT-23), or both, the authors examined whether both cell populations are involved in chemoreception in vivo in rats. The results support that separate populations of serotonergic and NK-1r-expressing neurons are each involved in chemoreception in vivo.

Related Products: SP-SAP (Cat. #IT-07), Anti-SERT-SAP (Cat. #IT-23), Antibody to Serotonin Transporter (SERT, Cat. #AB-N09)

Helm KA, Ziegler DR, Gallagher M (2004) Habituation to stress and dexamethasone suppression in rats with selective basal forebrain cholinergic lesions. Hippocampus 14(5):628-635. doi: 10.1002/hipo.10203

Summary: Basal forebrain cholinergic neurons may be involved in hippocampal and medial prefrontal cortex inhibition of glucocorticoid stress responses. The authors investigated the effects of 0.05 to 0.075 µg injections of 192-Saporin (Cat. #IT-01) into the medial septum/vertical limb of the diagonal band of rats by measuring corticosterone levels during a restraint stress test. Lesioned rats displayed less stress suppression on the administration of dexamethasone than controls, indicating that cholinergic neurons are involved in these stress responses.

Related Products: 192-IgG-SAP (Cat. #IT-01)

Schwartz RS (2004) Paul Ehrlich’s magic bullets. N Engl J Med 350(11):1079-1080. doi: 10.1056/NEJMp048021

Mnaimneh S, Damaj M, Barhoumi R, Mouneimne Y, Geffard M, Veyret B, Vincendeau P (2004) Evidence for nitric oxide involvement in experimental autoimmune encephalomyelitis and adjuvant-induced arthritis in Lewis rat. The Pain Clinic 16(3):229-243. doi: 10.1163/1568569041798407 PMID: 0

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Sedel F, Béchade C, Vyas S, Triller A (2004) Macrophage-derived tumor necrosis factor alpha, an early developmental signal for motoneuron death. J Neurosci 24(9):2236-2246. doi: 10.1523/JNEUROSCI.4464-03.2004

Related Products: IB4-SAP (Cat. #IT-10)

Zhang Y, Berger SA (2004) Increased calcium influx and ribosomal content correlate with resistance to endoplasmic reticulum stress-induced cell death in mutant leukemia cell lines. J Biol Chem 279(8):6507-6516. doi: 10.1074/jbc.M306117200

Summary: Ca2+ plays a vital role in many cell processes. To investigate events associated with Ca2+ and endoplasmic reticulum (ER) stress-induced cell death, the authors developed a mutant cell line with resistance to several ER stress-inducing agents. One of the assays used to define the characteristics of this cell line was treatment of the cells with 3 µg/ml of Saporin (Cat. #PR-01) and subsequent analysis of protein expression. The suppression of ribosome function partially reversed the resistance to ER stress-induced cell death.

Related Products: Saporin (Cat. #PR-01)