Technical Articles

The vascular system, as a life-sustaining network that spans the entire body to deliver nutrients and signals, is particularly important for the construction of in vitro models.

Th1 cell polarization is a core process in adaptive immune responses, precisely driven by key cytokines such as IL-12 and IFN-γ. This process shapes type 1 immunity characterized by macrophage activation and cytotoxic T cell responses, serving as a cornerstone for eliminating intracellular pathogens.

B-cell polarizing cytokines are a group of key signaling molecules that direct B-cell differentiation, antibody class switching, and functional specialization.

Osteoclasts are the only specialized cells in the human body responsible for bone resorption, and their differentiation, activation, and survival are strictly regulated by a sophisticated cytokine network.

Macrophage polarization is a core regulatory event in immune responses, with cytokines serving as the "chemical instructions" guiding this process.

At the forefront of immunology research, macrophage plasticity and functional polarization have become central to understanding inflammation, tissue repair, and the tumor immune microenvironment. The precise in vitro differentiation of human monocytes into M1 (pro-inflammatory) or M2 (anti-inflammatory/repair) macrophages is a critical technology for simulating in vivo immune status, conducting drug screening, and facilitating cell therapy research.

Mouse colon organoids serve as a revolutionary in vitro model, whose successful establishment and long-term maintenance are entirely dependent on precise signaling regulation provided by specific cytokine combinations. These factors collectively mimic the molecular characteristics of the in vivo colonic stem cell niche, enabling the organoids to recapitulate both the structure and function of the colonic epithelium.

Mouse cholangiocyte organoids are miniature, self-organizing structures derived from cholangiocytes or stem cells within a three-dimensional (3D) in vitro culture system. This model effectively simulates the epithelial barrier function, secretory properties, and injury response of the bile duct. Its successful establishment and long-term maintenance are highly dependent on a precise combination of cytokines.

Mouse normal small intestinal organoids, as a revolutionary model for studying intestinal epithelial biology in vitro, rely entirely on an exquisitely designed combination of cytokines for their miraculous growth and highly biomimetic structure. These minute signaling proteins function like a precise "conductor," orchestrating the self-renewal, differentiation, and tissue construction of intestinal stem cells, perfectly recapitulating the micro-physiological unit of the in vivo intestinal crypt-villus axis.

B cell polarization refers to the process by which naïve B cells, driven by antigens and specific signals (particularly cytokines), differentiate into distinct functional effector subsets. This is not merely a simple activation and proliferation, but rather a functional differentiation that determines antibody class, immunological memory, and tissue localization.