Peripheral noxious stimulation leads to a rapid and transient expression of c-fos, c-jun and other immediate-early genes (IEGs) in the spinal cord. However, the role of IEG encoded transcription factors in plasticity of spinal neurons remains speculative. In the present study we have shown that superfusion of rat spinal cord with antisense oligodeoxynucleotides complementary to c-fos mRNA suppr...

Activator protein-1 (AP-1) is a crucial transcription factor implicated in numerous cancers. For this reason, nine homologues of the AP-1 leucine zipper region have been characterized: Fos (c-Fos, FosB, Fra1, and Fra2), Jun (c-Jun, JunB, and JunD), and semirational library-designed winning peptides FosW and JunW. The latter two were designed to specifically target c-Fos or c-Jun. They have been...

In this paper, the possibilities of expressing natural response a linear commensurate fractional-order system (FOS) as combination basis functions are analyzed. For all possible types sα-domain poles, corresponding found, kernel which is two-parameter Mittag–Leffler function Eα,β, β = α. It pointed out that there mutually unambiguous correspondences between FOS and known integer-order (IOS) for...

The role of c-Fos in apoptosis was examined in two Syrian hamster embryo cell lines (sup+I and sup-II) and a human colorectal carcinoma cell line (RKO), using the chimeric Fos-estrogen receptor fusion protein c-FosER. As previously reported, contrasting responses were observed when these two cell lines were placed under growth factor deprivation conditions; sup+I cells were highly susceptible t...

The induction of c-fos mRNA was assessed using Northern blots and in situ hybridization in adult rats administered hypertonic saline (HS) and isotonic saline (IS). HS induced c-fos mRNA in magnocellular paraventricular nucleus (PVNm), parvocellular paraventricular nucleus (PVNp), supraoptic nucleus (SON), and lamina terminalis (LMT). This occurred within 5 min, peaked at 30-60 min, and disappea...

Microinjection of p21ras induced c-fos protein accumulation in three types of 3T3 cells. The induction was rapid and efficient and persisted for many hours. In addition, anti-ras antibody dramatically reduced c-fos accumulation after serum stimulation of injected cells. However, cells which expressed p21ras continuously did not maintain a high level of c-fos expression.

We have compared the mechanisms of the transcriptional induction of c-fos in mouse epidermal cells JB6 (clone 30) by an extracellular burst of active oxygen of the type produced by inflammatory phagocytes to induction by serum and phorbol ester. All three inducers elicit a characteristic immediate early response of c-fos which is inhibited by the protein kinase inhibitor H7 but enhanced by the ...

Mouse 3T3 cells were transformed with an antisense c-fos gene fused to a mouse mammary tumor virus promoter. In transformants that integrated a large number of antisense c-fos sequences, the usual large increase in c-fos mRNA and protein following stimulation of quiescent cells by platelet-derived growth factor was blocked in the presence of dexamethasone. These cells subsequently also failed t...

We examined the effects of i.c.v. administration of neuro-peptide W-30 (NPW30) on plasma arginine vasopressin (AVP) and plasma oxytocin (OXT) using RIA. The induction of c-fos mRNA, AVP heteronuclear (hn)RNA, and c-Fos protein (Fos) in the supraoptic nucleus (SON) and paraventricular nucleus (PVN) of rats were also investigated using in situ hybridization histochemistry for c-fos mRNA and AVP h...