Populate cell types under 'fenestrated' endothelial cell

[dosumis]

There are many types of fenestrated endothelial cell, but we only have a couple of classes under this term ('fenestrated cell' ; CL_0000666 )

Some examples + papers to curate:
https://www.perplexity.ai/search/which-endothelial-cell-types-a-IMYlTiBZRi.MU99.CRfyHA

see also #2423

Tasks

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1. Revise glomerular and peritubular capillary endothelial cell classification and defs #2474
   CL-classhierarchy logical definition text definition +3
   
2. [NTR] intestinal villus capillary endothelial cell #2476
   new term request +1
   
3. [NTR] choroid plexus capillary endothelial cell #2481
   new term request +1
   
4. [NTR] pancreatic islet capillary endothelial cell #2485
   new term request +1
   
5. [NTR] endocrine gland capillary endothelial cell #2484
   new term request +1
   
6. [NTR] pituitary gland capillary endothelial cell #2486
   new term request +1
   

[dosumis]

Related issue:

GO has this term:

glomerular endothelium fenestra
http://purl.obolibrary.org/obo/GO_0036053

We should add a has_part relationship to this to the relevant CL term

Also - of the fenestrated capillary cells mentioned in the Perplexity response, we only have this one "peritubular capillary endothelial cell" - others will need to be new terms.

[dosumis]

I think we should request a general term for endothelia cell fenestra from GO.

label: endothelial cell fenestra
def: A transcellular pore present in some types of endothelial cell, that facilitates efficient transfer of molecules across endothelia.

I think also possible to make more subclasses where there are clear differences in structure, e.g. - presence/absence fenstra diaphragm & presence/absence associated basal lamina, grouping into 'sieve plates' There are a few possiblilities for GO annotation - structural proteins of diaphragm and proteins that regulate formation and pore size.

See https://www.perplexity.ai/search/which-endothelial-cell-types-a-IMYlTiBZRi.MU99.CRfyHA
This looks like a good review https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2681366/

https://github.com/geneontology/go-ontology/issues/new?assignees=&labels=New+term+request&projects=&template=new-term-request.md&title=NTR%3A+%5Bproposed+new+term+label%5D

The GO terms can then be used to formally define and classify fenestrated endothelial cells.