Immunoenzymatic demonstration of a presumptive prolactin-like substance inHymenolepis nana

Kumazawa, Hideo; Moriki, Toshiaki

doi:10.1007/bf00927745

Cited by 13 publications

(8 citation statements)

References 8 publications

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“…Immunoreactivity to PRL was evident throughout the CNS and PNS in both tapeworms, though PRL-IR in the cerebral ganglia in Taenia solium was stronger than that of Taenia hydatigena, in contrast, immunoreactivity in the main nerve cords was more evident in Taenia hydatigena. The demonstration of PRL-IR in Hymenolepsis nana has been detected by Kumazawa & Moriki (1986). Of the PRL antiserum tested it appears that located in the anterior periphery of the retracted rostellum and within the rostellar tegument.…”

Section: Discussionmentioning

confidence: 99%

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Prolactin in the Cestodes, Taenia solium and Taenia hydatigena

Liu

Wakuri

Mutoh

1996

Okajimas Folia Anatomica Japonica

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The demonstration of prolactin in cestodes, Taenia solium and Taenia hydatigena, was investigated by using immunocytochemical method. PRL immunoreactivity was widely distributed in the CNS and PNS in the worms. In the scolex PRL-IR perikarya occurred in the cerebral ganglia, around the basic area of the sucker and the rostral border region between the rostellum and the suckers with strong immunoreaction, distinctly in Taenia solium. A number of PRL-IR nerve fibres were observed in the main nerve cords, and a few fibres in the transverse nerve commissure. The holdfast musculature of the scolex was innervated by the PRL-IR fibres. A large number of PRL positive cells with processes and nerve plexuses were seen in the ootype/Mehlis' gland complex, oviduct, the duct of uterum, seminal receptacle and its associated duct, conspicuously in Taenia hydatigena. PRL-IR was evident in the wall of vas efferens of tests and vas deferens. A few PRL positive cells occurred in the medullary parenchyma amongst testes and sent their varicose processes to terminate to the testes. On the wall of the main excretory duct a few PRL-IR cells and fibres were seen.

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Section: Discussionmentioning

confidence: 99%

“…The data on the presence of prolactin in the nervous system is still scarce in invertebrates. PRL-IR was only detected in the anterior periphery of the retracted rostellum and within the rostellar tegument in Hymenolepis nana (Kumazawa & Moriki, 1986). PRL in the nervous system of cestodes seems to be a neglected field of research.…”

mentioning

confidence: 99%

Prolactin in the Cestodes, Taenia solium and Taenia hydatigena

Liu

Wakuri

Mutoh

1996

Okajimas Folia Anatomica Japonica

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“…PRL immunoreactivity in the Hymenolepis nana has been demonstrated, but only located in the anterior periphery of the retracted rostellum and within the rostellar tegument (Kumazawa & Moriki, 1986). Negative results of PRL immunoreactivity in the Schistosoma spp.…”

Section: Discussionmentioning

confidence: 94%

“…Indeed, PRL can be regarded as an adenophypophyseal hormone as well as a neuropeptide. There is relatively few data on prolactin in the flatworm, only the demonstration of prolactin immunoreactivity in the Hymenolepis nana using human prolactin antibody has been reported (Kumazawa & Moriki, 1986).…”

mentioning

confidence: 99%

Immunocytochemical Evidence for the Presence of Prolactin in the Plerocercoid of Ligula Intestinalis (Cestoda: Pseudophyllidea)

Liu

Wakuri²,

Mutoh³

1995

Okajimas Folia Anatomica Japonica

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“…cestodes. Somatostatin-like material was found in cells of the free proglottis stage of Trilocularia acanthiaevulgaris , whereas the tegumental cells in Hymenolepis nana appeared to contain prolactin-like material (Kumazawa & Moriki, 1986).…”

Section: Discussionmentioning

confidence: 99%

Immunocytochemical study on biologically active neurosubstances in daughter sporocysts and cercariae of Trichobilharzia ocellata and Schistosoma mansoni

Solís-Soto

Brink

1994

Parasitology

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Immunocytochemical techniques applied to sections and whole-mount preparations of cercariae from two species of trematodes, Trichobilharzia ocellata and Schistosoma mansoni, revealed the occurrence of immunoreactivity (IR) to several neurosubstances in the nervous system (NS). Immunostaining was localized in cerebral ganglia, in the main commissure, in anterior and posterior nerve trunks, as well as in a pair of nerve fibres running along the tail. In T. ocellata, immunoreactivity (IR) was observed with antisera raised against: glutamate, FMRFamide, catch-relaxing peptide (CARP), small cardiac peptide B (SCPB), arg-vasotocin (AVT), arg-vasopressin (AVP), and substance P. In S. mansoni antisera raised against glutamate, FMRFamide, CARP, SCPB, alpha-caudodorsal cell peptides (alpha-CDCP), and cholecystokinin (CCK) showed neuronal IR. With the other 51 antisera tested no IR was observed. With anti-APGWamide, IR was observed outside the NS in cells of the wall of the daughter sporocyst and in flame cells of cercariae of T. ocellata. IR to FMRFamide was present in the escape glands of the intrasporocystic cercariae of T. ocellata and S. mansoni. IR to somatostatin was observed in subtegumental parenchymal cells of cercariae of S. mansoni. IR to met-enkephalin was present in cells of the cercarial embryos and in undifferentiated cells in developing cercariae. Trematodes are, together with cestodes, phylogenetically the oldest classes in which glutamate-like material and immunopositivity to a number of neuropeptides isolated from invertebrates has been demonstrated. The results are discussed in relation to immunocytochemical data obtained for other platyhelminths, to endogenous functions of the immunopositive materials, and to their possible role in parasite-host interactions.

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Immunoenzymatic demonstration of a presumptive prolactin-like substance inHymenolepis nana

Cited by 13 publications

References 8 publications

Prolactin in the Cestodes, Taenia solium and Taenia hydatigena

Prolactin in the Cestodes, Taenia solium and Taenia hydatigena

Immunocytochemical Evidence for the Presence of Prolactin in the Plerocercoid of Ligula Intestinalis (Cestoda: Pseudophyllidea)

Immunocytochemical study on biologically active neurosubstances in daughter sporocysts and cercariae of Trichobilharzia ocellata and Schistosoma mansoni

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