DG Interneuron Specific IMOT*
* indicates new v2.0 neuron type
Name Supertype (ID:Family:Type:Subregion)
DG (i)2322 Interneuron Specific IMOT* S091201:Interneuron Specific:IS:DG

Name derivation
This is a new name derived from the interneuron specificity and the morphological patterning that matches IMOT (Inner MOlecular layer-Targeting) cells.

Synonym(s)
DG molecular layer-projecting cell

List of articles
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Wei YT  (2021) Journal of Comparative Neurology
Morpho-physiological properties and connectivity of vasoactive intestinal polypeptide-expressing interneurons in the mouse hippocampal dentate gyrus
Wei YT, Wu JW, Yeh CW, Shen HC, Wu KP, Vida I, Lien CC.
Journal of Comparative Neurology, 2021, 529 (10), Pages: 2658 - 2675
PMID: 33484471; DOI: 10.1002/cne.25116
Tags: morphology, marker


Morphology
Soma
DG:SMi
DG:SG
DG:H
Axons
DG:SMi
Dendrites
DG:SMo
DG:SMi
DG:SG
DG:H

Representative figure
Morpho-physiological properties and connectivity of vasoactive intestinal polypeptide-expressing interneurons in the mouse hippocampal dentate gyrus
Wei YT, Wu JW, Yeh CW, Shen HC, Wu KP, Vida I, Lien CC
Journal of Comparative Neurology, 2021, 529 (10), pages: 2658 - 2675
PMID: 33484471; DOI: 10.1002/cne.25116


"FIGURE 4 Morphological reconstructions of the DG VIP+ INs [interneurons]. (aĞd) All of the 40 reconstructed VIP+ INs. The dendrites were depicted in black, and the axons were shown in the same color codes as in Figure 3(a). Values of Rin and RMP were shown below the cell"


Molecular markers
Positive
VIP
Negative
GABAa\alpha 6 (inference)
Gaba-a-alpha (multiple confirming inferences)
PV (inference)
vGluT3 (inference)
Mixed expression
None known

Electrophysiological properties
None known

Notes

DG (i)2322 Interneuron-Specific Inner MOlecular layer-Targeting (IS IMOT) cells [1106]

Related types: DG (i)2322 HICAP (v1.0 active)

Notes: These cells are VIP+ and are speculated by the authors to be interneuron specific, which distinguishes them from the active type, which are inferred to be CR- and VIP-.

VIP+. Ephys. FP. Lengths.

After review of DG (i) 2322 IS HICAP (#1106), I am in agreement with the evidence as presented in the provided packet and approve this type for v2.0. - JDK 11/22/2021

I approve the new type, but I'm not convinced by the name. I don't think we should adopt the same name (except for the IS part) for IS and non-IS neurons, as this can create unneeded confusion (I'm already regretting "IS LM-R" vs "LMR" in CA1, but at least we have an extra hyphen there). Perhaps we could consider something like IS-IMOT (inner molecular targeting), but I'm also open to other proposals. - GAA 01/25/2022

The authors refer to the cells as molecular layer-projecting (MP) cells. Perhaps we could amend that into Interneuron Specific Inner MOlecular layer-Projecting (IS IMOP) cells? - DWW 01/28/2022

I am in agreement with GAA's comments and favor changing the name to either IS IMOT or IS IMOP. As far as choosing between  the two, I am in favor of IMOT despite the author's referral to these cell as molecular layer-projecting. My rationale is that we have used the "projecting" nomenclature so far to denote axonal presence for a neuron type outside of the layer its somata have been found, and the "targeting" nomenclature for within the same layer. Therefore, I think that IMOT is a better choice for describing this new neuron type. - JDK 01/28/2022

That logic makes sense. I am in agreement with your suggestion for IS IMOT. - DWW 01/28/2022

Firing Pattern
Images
No image is associated with this neuron
Parameters
No parameter associated with this neuron
ModelDB Model
Model Accession Number PubMed ID

Sources of Input
Known sources
Excitatory or Inhibitory
none known

Potential sources
Excitatory or Inhibitory
DG Granule
DG Adult-Born Immature Granule*
DG Hilar Ectopic Granule
DG Semilunar Granule
DG Cajal-Retzius*
DG Local-Projecting Cajal-Retzius*
DG Mossy
DG Mossy MOLDEN
DG AIPRIM
DG Granulosum-targeting Axo-axonic*
DG Basket
DG Basket GRALDEN*
DG Basket CCK+
DG Interneuron Specific COLTAR*
DG COM-MOPP*
DG HICAP
DG Interneuron Specific IMOT*
DG Hilus-Associated Interneuron*
DG Interneuron Specific HIMOLD*
DG HIPP
DG Recurrent HIPP*
DG HIPP-CAP*
DG Recurrent HIPP-CAP*
DG Interneuron Specific HIPRO*
DG HIPROM
DG Ivy*
DG MOCAP
DG MOLAX
DG Molecular Layer*
DG Outer Molecular Layer
DG Total Molecular Layer
DG MOPP
DG Neurogliaform
DG Wide-Arbor Neurogliaform*
CA3c Pyramidal
CA3c Umbrella Pyramidal*
CA3 Spiny Lucidum
CA3 Mossy Fiber-Associated
CA3 Mossy Fiber-Associated ORDEN
CA3 Perforant Path-Associated Projecting*
CA3 Interneuron Specific Quad
CA2 Pyramidal
CA1 Local-Projecting Cajal-Retzius*
CA1 Back-Projection
CA1 LMR Projecting
CA1 Neurogliaform Projecting
CA1 Perforant Path-Associated
EC LI-II Pyramidal-Fan
MEC LII Stellate
EC LII-III Pyramidal-Tripolar
EC LIV-V Pyramidal-Horizontal
MEC LV Pyramidal

Potential sources known to be avoided
Excitatory or Inhibitory
DG Axo-axonic
DG Axo-axonic GRALDEN*

Targets of Output
Known targets
Excitatory or Inhibitory
none known

Potential targets
Excitatory or Inhibitory
DG AIPRIM
DG Axo-axonic
DG Granulosum-targeting Axo-axonic*
DG Axo-axonic GRALDEN*
DG Basket
DG Basket GRALDEN*
DG Basket CCK+
DG COM-MOPP*
DG HICAP
DG Interneuron Specific IMOT*
DG Interneuron Specific HIMOLD*
DG Interneuron Specific HIPRO*
DG HIPROM
DG Ivy*
DG MOCAP
DG MOLAX
DG Molecular Layer*
DG Outer Molecular Layer
DG Total Molecular Layer
DG Wide-Arbor Neurogliaform*

Potential targets known to be avoided
Excitatory or Inhibitory
DG Granule
DG Adult-Born Immature Granule*
DG Hilar Ectopic Granule
DG Semilunar Granule
DG Mossy MOLDEN

Oscillation Phase Locking
Category
Value