Abstract：
:As luminal fluid moves from the seminiferous tubule and enters the rete testis, its protein concentration declines from approximately 6 mg/ml to 1 mg/ml. It was therefore suggested that protein is either 1) utilized by the spermatozoa, 2) transported across the epithelium of the terminal segment of the seminiferous tubule, the tubuli recti or rete testis, or 3) absorbed and degraded by the epithelium. Horseradish peroxidase (HRP), a protein marker, was microperfused into single seminiferous tubules or perfused directly into the rete. After fixation, the HRP was localized histochemically and the tissue observed under the light- and electron microscope. HRP was taken up via pinocytotic vesicles into the cytoplasm of the Sertoli cells and germ cells but did not permeate extracellularly beyond the tight junctions. Similar results were obtained in the cells lining the terminal segment and the tubuli recti. The rete epithelium showed uptake of HRP into coated and noncoated vesicles, while some cells additionally revealed diffuse cytoplasmic distribution of HRP. The terminal segment, tubuli recti, and rete testis may be important routes by which proteins may leave the testicular fluid either to be degraded or to enter the blood.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Hinton BT,Keefer DAdoi
10.1007/BF00213810subject
Has Abstractpub_date
1983-01-01 00:00:00pages
367-75issue
2eissn
0302-766Xissn
1432-0878journal_volume
230pub_type
杂志文章abstract：:The bursa of Fabricius of the chicken is known to be both a primary lymphoid organ and a secondary lymphoid tissue. Bursal follicles are equipped with antigen-trapping follicle-associated epithelium. However, bioactive antigens such as protein and bacteria have not been detected in the bursal parenchyma. By immunopero...
journal_title：Cell and tissue research
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journal_title：Cell and tissue research
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journal_title：Cell and tissue research
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journal_title：Cell and tissue research
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journal_title：Cell and tissue research
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journal_title：Cell and tissue research
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journal_title：Cell and tissue research
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更新日期：1993-11-01 00:00:00
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journal_title：Cell and tissue research
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更新日期：1990-03-01 00:00:00
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更新日期：2004-01-01 00:00:00
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更新日期：2018-04-01 00:00:00
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journal_title：Cell and tissue research
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更新日期：1985-01-01 00:00:00
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journal_title：Cell and tissue research
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更新日期：2019-08-01 00:00:00
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journal_title：Cell and tissue research
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doi：10.1007/BF00309876
更新日期：1990-11-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00218495
更新日期：1975-11-19 00:00:00
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journal_title：Cell and tissue research
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doi：10.1007/BF00220036
更新日期：1988-10-01 00:00:00
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journal_title：Cell and tissue research
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更新日期：1979-03-09 00:00:00
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journal_title：Cell and tissue research
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更新日期：2000-09-01 00:00:00
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journal_title：Cell and tissue research
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journal_title：Cell and tissue research
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更新日期：1988-10-01 00:00:00
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journal_title：Cell and tissue research
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更新日期：1977-10-26 00:00:00
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journal_title：Cell and tissue research
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更新日期：2016-02-01 00:00:00
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journal_title：Cell and tissue research
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更新日期：1981-01-01 00:00:00
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journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00210032
更新日期：1978-06-26 00:00:00
