Anti-NFKBIB monoclonal antibody, clone 2C6

The ALAN is drawing the attention of researchers and environmentalists for its ever-increasing evidence on its capacity of "desynchronization" of organismal physiology. Photoperiod and circadian cycles are critical parameters to influence the biology of reproduction in several animals, including fish. The present study is the first proof of the development of an ovarian tumour with the effect of light in zebrafish (Danio rerio), an excellent model for circadian-related studies. Results of three experimental conditions, continuous light for one week, LLW, one month, LLM, and for one year, LLY revealed a dear desynchronization of clock associated genes (Clock1a, Bmal1a, Per2, and Cry2a). Interestingly, loss of rhythmicity and low concentration of melatonin found in these conditions in whole brain, retina, ovary, and serum through ELISA. RNA-Seq data of ovarian samples revealed the upregulation of Mid2, Tfg, Irak1, Pim2, Tradd, Tmem101, Nfkbib genes and ultimately increase the expression of NF-kappa B, a cellular transformer for tumourigenesis, confirmed by the western blot. The appearance of TNF alpha, inflammatory cytokines and activator of NF-kappa B also increased. Histology approved the formation of thecoma and granulosa cell tumour in the one year exposed ovarian sample. The whole transcriptome data analysis revealed 1791 significantly upregulated genes in an ovarian tumour. Among these genes, DAVID functional annotation tool identified 438 genes, directly linked to other physiological disorders. This study evidenced of an ovarian tumour induced by ALAN in zebrafish. (C) 2018 Elsevier B.V. All rights reserved.

Establishment and maintenance of pregnancy in the pig involves intricate communication between the developing conceptuses and the maternal endometrium. This process occurs during trophoblast elongation which is spaciotemporally associated with conceptus synthesis and release of IL1B concomitant with pregnancy-specific endometrial up-regulation of IL-1 receptors, providing the potential for activation of the transcription factor, NFKB. The objective of the current investigation was to determine changes in expression and cellular localization of NFKB and associated factors during the estrous cycle and early pregnancy in the pig. In situ hybridization was used to localize changes in PGR, ESR1, and TNFRSF11A during the peri-implantation period. Quantitative RT-PCR was utilized to demonstrate gene expression changes for NFKB1, RELA, TNFRSF11A, TLR4, NFKBIA and NFKBIB. Transcription factor ELISA demonstrated an overall increase in RELA during the peri-implantation period in both cyclic and pregnant gilts. While the presence of TNFSF11A and TLR4 were both detected, TLR4 expression changes were temporally associated with NFKB expression and activation. Collectively, these data demonstrate that NFKB activation may occur during the period of uterine receptivity in both the cyclic and pregnant endometrium.