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2024

Volume 5, Issue 1, p1-50

Articles published in this issue are Open Access and licensed under Creative Commons Attribution License (CC BY NC) where the readers can reuse, download, distribute the article in whole or part by mentioning proper credits to the authors.

Specific Subcellular Localization of Phosphoinositide-Specific Phospholipase C enzymes in Different Human Osteosarcoma Cell Lines

The role of signal transduction in cancer progression is well established and actively studied, including in osteosarcoma. The signal transduction pathways involved in the regulation of calcium metabolism are being intensively studied, with particular regard to phosphoinositide-specific phospholipase C (PLC) signaling. This family of enzymes helps to modulate calcium metabolism and is interconnected with additional signaling molecules belonging to different pathways.

J Cell Signal, 2024, Volume 5, Issue 1, p1-9 | DOI: 10.33696/Signaling.5.107

MKP-2 Deficiency Leads to Lipolytic and Inflammatory Response to Fasting in Mice

The liver plays a crucial role in maintaining homeostasis for lipid and glucose. Hepatic lipid synthesis is regulated by nutritional signals in response to fasting and refeeding. It is known that overnutrition regulates MAPK-dependent pathways that control lipid metabolism in the liver by activating MAPK phosphatase-2 (MKP-2). Uncertainty still exists regarding the regulatory mechanisms and effects of MKP-2 on hepatic response to fasting.

J Cell Signal, 2024, Volume 5, Issue 1, p10-23 | DOI: 10.33696/Signaling.5.108

Monitoring Transcription of miR-15a and miR-124 in Mesenchymal Stem Cells from Adipose Tissue Origin Differentiated into Pancreatic Beta-cells

MicroRNAs are small, noncoding pieces of nucleic acid with the potential to control mRNA translation. These sequences participate in the regulation of cell dynamic growth and differentiation. In this study, the expression of miR-15a and miR-124 was monitored in adipose-derived tissue stem cells committed to pancreatic β cells in vitro over 28 days. In the current experiment, adipose-derived mesenchymal stem cells were incubated in an induction medium to accelerate differentiation toward the endocrine pancreatic lineage for 28 days with a three-stage protocol.

J Cell Signal, 2024, Volume 5, Issue 1, p24-29 | DOI: 10.33696/Signaling.5.109

Phorbol-12-Myristate-13-Acetate (PMA) Reactivates Replication from HIV-1 Latency and Induces Jurkat Cell Death

HIV-1 has the capability to establish latency during early infection in CD4+ cells, posing a significant challenge to the efforts aimed at curing HIV-1/AIDS. One extensively explored strategy to address this viral latency is the "shock-and-kill" approach. This involves reactivating viral replication using latency reversal agents (LRAs) to induce the death of infected cells. Regrettably, no LRAs with proven effectiveness have been identified thus far.

J Cell Signal, 2024, Volume 5, Issue 1, p30-40 | DOI: 10.33696/Signaling.5.110

Role of Exosomal MicroRNAs in Modulating the Response of Cancer Cells to Paclitaxel Treatment

MicroRNAs (miRNAs) play important roles in gene regulation and have been implicated in various human diseases, including cancer. MiRNAs can be packaged in exosomes and transferred between cells. These exosomal miRNAs regulate intercellular communication and influence almost all aspects of cancer biology, including proliferation, apoptosis, invasion, metastasis, and angiogenesis.

J Cell Signal, 2024, Volume 5, Issue 1, p41-50 | DOI: 10.33696/Signaling.5.111

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