Anti-RBM3 monoclonal antibody, clone 5E7

In a recent report, it has been postulated that the unbiqutous RBM proteins might constitute a novel family of apoptosis modulators. We measured the expression of the X-chromosome RBM genes (RBMX, RBM3, and RBM10) in 122 breast cancers by means of differential RT-PCR. Using the same method, we also studied the expression of the apoptosis-related genes Bcl-2 and Bax. Markers of hormone dependence (estrogen and progesterone receptors), proliferation (Ki67 and DNA-ploidy), angiogenesis (VEGF and CD105), as well as oncogene (c-erb-B2), and tumor suppressor gene (p53) expression were also analyzed. The expression of all X-chromosome RBM genes was significantly associated with the expression of the proapoptotic Bax gene (RBMX, P = 0.039; RBM3, P < 0.001; RBM70 large variant, P < 0.001; RBM10 small variant, P < 0.001). Furthermore, the expression of both RBM10 variants was significantly associated with the expression of the VEGF gene (large variant, P = 0.004; small variant, P = 0.003). We also found all association of borderline significance (P = 0.05) between the expression of RBM3, the large variant of RBM10 and wild-type p53. Expression of the small RBM10 variant, finally, was associated with high proliferation of the tumors (Ki67 > 20%; P = 0.037). The expression of both RBM10 variants seems to be interdependent to a significant degree (r = 0.26, P = 0.006). From these results, it seems that the X-chromosome, through its RBM genes, plays a formerly unknown role in the regulation of programmed cell death (apoptosis) in breastcancer.

We encountered several cases concerning to ischemic and hypoxic deaths at routine autopsy cases. These victims were individuals who died due to suicidal hanging, autoerotic accidental hanging, self-ligature strangulation, manual strangulation, strangulation by a rope, accidental and suicidal drowning, anaphylaxis shock, and asphyxia by food aspiration. Theiragonal duration and postmortem interval were different, that is, agonal duration distributed from direct death to 4days and postmortem interval was from 12hours to 40 days, respectively. We examined the damaging degree of the granular cell layer in the each cerebellum using an application of Photshop andexpression pattern of antigens in the cerebellums by immunohistochemstry using anti CIRBP, RBM3, HIF-1, AIF1, SIRT1, Ngb, HSP 70, cFos, p53 and CCC9 antibodies. The results indicate the co-relationship between damaging of the granular cells and agonal duration, andshowed that expression pattern of antigens may be relate with agonal duration, although it was not significant. The antigens expressed during agonal duration might be kept even in postmortem interval. In a special case in which an individual was killed and buried for 40 days under ground after being strangulated, the antigens related to stress and ischemic signaling pathway such as HSP70, CCC9, CIRBP, RBM3 and SIRT 1 were detectable in the molecular layer and dentate nucleus of the cerebellum. The co-relationship between the damaging of granular cells and agonal duration may be more reliable compared with those of Purkinje cells and agonal duration. The results obtained in this study indicate that the damaging of granular cells is useful tool to estimate agonal duration, and postmortem humanbrain tissue may be utilizable for diagnosis and examination of brain diseases. The results obtained in this study indicated that CIRBP and RBM3 were hypoxic or ischemic related antigens and not the cold inducible antigens.