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Different species such as rat, mouse, and human are currently being used for this purpose, among others. The transferability of protocols for tissue isolation and sample collection is not always straightforward. Thus, the present work presents a new protocol for isolation and sample collection of rat myenteric plexus cells for in vivo as well as in vitro studies. With the methods and chemicals described in detail, a wide variety of investigations can be performed with regard to normal physiological as well as pathological processes in the postnatal developing enteric nervous system. The fast and efficient preparation of the intestine as the first step is particularly important. We have developed and described a LIENS chamber to obtain optimal tissue quality during intestinal freezing. Cryosections of the flat, snap-frozen intestine can then be prepared for histological examination of the various wall layers of the intestine, e.g. by immunohistochemistry. In addition, these cryosections are suitable for the preparation of defined regions, as shown here using the ganglia of the mesenteric plexus. This specific tissue was obtained by laser microdissection, making the presented methodology also suitable for subsequent analyses that require high quality (specificity) of the samples. Furthermore, we present here a fully modernized protocol for the cultivation of myenteric neurons from the rat intestine, which is suitable for a variety of in vitro studies.<\/jats:p>","DOI":"10.1007\/s10571-021-01181-5","type":"journal-article","created":{"date-parts":[[2021,12,21]],"date-time":"2021-12-21T10:02:51Z","timestamp":1640080971000},"page":"315-325","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Methods to Study the Myenteric Plexus of Rat Small Intestine"],"prefix":"10.1007","volume":"43","author":[{"given":"Ines","family":"Hecking","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lennart Norman","family":"Stegemann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sarah","family":"Stahlke","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Verena","family":"Theis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthias","family":"Vorgerd","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Veronika","family":"Matschke","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7983-0143","authenticated-orcid":false,"given":"Carsten","family":"Theiss","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,12,21]]},"reference":[{"issue":"2","key":"1181_CR1","doi-asserted-by":"publisher","first-page":"168","DOI":"10.1111\/j.1365-2982.2009.01424.x","volume":"22","author":"M B\u00f6ttner","year":"2010","unstructured":"B\u00f6ttner M, B\u00e4r F, Von Koschitzky H, Tafazzoli K, Roblick UJ, Bruch HP, Wedel T (2010) Laser microdissection as a new tool to investigate site-specific gene expression in enteric ganglia of the human intestine. 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