This reflects the fact that cell specific lineage tracing systems are better developed for the epithelium.
Lung cell lineage.
E lentivirally barcoded cells projected onto the cshmm based using 86 selected genes.
The lung alveolar compartment is the primary site of gas exchange the most fundamental function of the respiratory system.
In day 21 balo cultures upregulated genes included hopx for aec i and sftpc for aec ii as well as foxj1 muc5ac and p63 for ciliated goblet cells and basal cells respectively fig 2 a.
Lung lineage specific cell differentiation was achieved in a relatively shorter span of time 22 days in contrast to other reported lung lineage culture conditions.
In addition the cells must differentiate into at least 40 distinct lung cell lineages.
To shed light on these unknown mechanisms scientists at the max planck institute of immunobiology and epigenetics in freiburg headed by dominic.
The mammalian lung is a highly branched network in which the distal regions of the bronchial tree transform during development into a densely packed honeycomb of alveolar air sacs that mediate gas exchange.
Furthermore we validated upregulation of lineage markers of differentiated cell types of the adult lung by qpcr.
Rock et al 2011.
These culture media normally used to maintain and grow mature cells could successfully induce differentiation of pluripotent embryonic stem cells into three types of mature lung lineage specific non ciliated cells.
The lung alveolus forms a niche of interacting and communicating cell types including the at1 and at2 epithelial lineages vascular endothelial cells and poorly understood mesenchymal lineages.
At2 and at1 cells are thought to receive signals from the adjoining lung mesenchyme which are important for both homeostasis and regeneration after injury.
Specific transcriptional factors peptide growth factor receptor mediated signaling pathways extracellular matrix components and integrin signaling pathways interact to direct lung morphogenesis and lung cell lineage differentiation.
There is no evidence that a single lung stem cell as in the hematopoietic system gives rise to all cell lineages during homeostasis or repair.
Single cell atlas of lung innate lymphoid cells.
In the lung alveolus the alveolar type 2 at2 cell population or subpopulations within it is thought to be the predominant epithelial progenitor cell capable of self renewal and generating the alveolar type 1 at1 lineage after injury barkauskas et al 2013.
Reconstructing lineage hierarchies of the distal lung epithelium using single cell rna seq.
