Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

PIM kinases 1, 2 and 3 in intracellular LIF signaling, proliferation and apoptosis in trophoblastic cells

Full text
Author(s):
Photini, Stella Mary ; Chaiwangyen, Wittaya ; Weber, Maja ; Al-Kawlani, Boodor ; Favaro, Rodolfo R. ; Jeschke, Udo ; Schleussner, Ekkehard ; Morales-Prieto, Diana M. ; Markert, Udo R.
Total Authors: 9
Document type: Journal article
Source: Experimental Cell Research; v. 359, n. 1, p. 275-283, OCT 1 2017.
Web of Science Citations: 6
Abstract

Proviral insertion in murine (PIM) lymphoma proteins are mainly regulated by the Janus Kinase/Signal Transducer Activator of Transcription (JAK/STAT) signaling pathway, which can be activated by members of the Interleukin-6 (IL-6) family, including Leukemia Inhibitory Factor (LIF). Aim of the study was to compare PIM1, PIM2 and PIM3 expression and potential cellular functions in human first and third trimester trophoblast cells, the immortalized first trimester extravillous trophoblast cell line HTR8/SVneo and the choriocarcinoma cell line JEG-3. Expression was analyzed by qPCR and immunochemical staining. Functions were evaluated by PIM inhibition followed by analysis of kinetics of cell viability as assessed by MTS assay, proliferation by BrdU assay, and apoptosis by Western blotting for BAD, BCL-XL, (cleaved) PARP, CASP3 and c-MYC. Apoptosis and necrosis were tested by flow cytometry (annexin V/propidium iodide staining). All analyzed PIM kinases are expressed in primary trophoblast cells and both cell lines and are regulated upon stimulation with LIF. Inhibition of PIM kinases significantly reduces viability and proliferation and induces apoptosis. Simultaneously, phosphorylation of c-MYC was reduced. These results demonstrate the involvement of PIM kinases in LIF-induced regulation in different trophoblastic cell lines which may indicate similar functions in primary cells. (AU)

FAPESP's process: 14/23517-1 - Does type 1 diabetes change the microRNA expression profile on the uterus of ovariectomized mice submitted or not to estrogen replacement?
Grantee:Rodolfo Favaro Ribeiro
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 11/22429-3 - EVALUATION OF THE IMPACT OF TYPE 1 DIABETES UPON THE RESPONSIVINESS OF UTERINE TISSUES TO ESTROGEN STIMULATION
Grantee:Rodolfo Favaro Ribeiro
Support Opportunities: Scholarships in Brazil - Post-Doctoral