GAP JUNCTIONAL CONNECTIONS BETWEEN HAIR-CELLS, SUPPORTING CELLS AND NERVES IN A VESTIBULAR ORGAN

被引：9

作者：

MULROY, MJ ^{[1
]}

DEMPEWOLF, SA ^{[1
]}

CURTIS, S ^{[1
]}

IIDA, HC ^{[1
]}

机构：

[1] MED COLL GEORGIA, OTOLARYNGOL SECT, AUGUSTA, GA 30912 USA

来源：

HEARING RESEARCH | 1993年 / 71卷 / 1-2期

关键词：

INTERCELLULAR COMMUNICATION; CRISTA AMPULLARIS OF SEMICIRCULAR DUCT; ALLIGATOR LIZARD;

D O I：

10.1016/0378-5955(93)90025-V

中图分类号：

R36 [病理学]; R76 [耳鼻咽喉科学];

学科分类号：

100104 ; 100213 ;

摘要：

The pattern of gap-junctional connections between cells in the vestibular neuroepithelium of the posterior semicircular duct of the alligator lizard are described based upon the study of freeze fracture replicas and ultrathin sections with a transmission electron microscope. Both type I and type II hair cells are coupled to adjacent supporting cells by a series of small macular gap junctions located in a ring around the hair cell at the level of the apical circumferential belt of actin filaments. Adjacent supporting cells are extensively interconnected by gap junctions. A few cases of gap junctions between afferent dendrites and supporting cells, and between afferent dendrites and calyceal nerve endings were seen. These morphological observations together with data from other studies in the literature suggest a possible role for supporting cells in altering the micromechanical properties of the hair cell receptor organs during stimulation.

引用

页码：98 / 105

页数：8

共 26 条

[1]

ALBERTS B, 1989, MOL BIOL CELL, P798

[2] SUPPORTING-CELL AND EXTRACELLULAR RESPONSES TO ACOUSTIC CLICKS IN THE FREESTANDING REGION OF THE ALLIGATOR LIZARD COCHLEA [J].

BADENKRISTENSEN, K ;

WEISS, TF .

HEARING RESEARCH, 1982, 8 (03) :295-315

[3] STUDY OF STRUCTURE OF PAPILLA NEGLECTA IN LIZARD, ANOLIS-CAROLINENSIS [J].

BAIRD, IL ;

LOWMAN, GF .

ANATOMICAL RECORD, 1978, 191 (01) :69-90

[4]

BENNETT MVL, 1991, NEURON, V6, P305, DOI 10.1016/0896-6273(91)90241-Q

[5] INTERCELLULAR PROPAGATION OF CALCIUM WAVES MEDIATED BY INOSITOL TRISPHOSPHATE [J].

BOITANO, S ;

DIRKSEN, ER ;

SANDERSON, MJ .

SCIENCE, 1992, 258 (5080) :292-295

[6]

COREY DP, 1983, J NEUROSCI, V3, P942

[7] CHANGES IN SIZE AND SHAPE OF AUDITORY HAIR-CELLS INVIVO DURING NOISE-INDUCED TEMPORARY THRESHOLD SHIFT [J].

DEW, LA ;

OWEN, RG ;

MULROY, MJ .

HEARING RESEARCH, 1993, 66 (01) :99-107

[8] 3 DIFFERENT ACTIN FILAMENT ASSEMBLIES OCCUR IN EVERY HAIR CELL - EACH CONTAINS A SPECIFIC ACTIN CROSS-LINKING PROTEIN [J].

DRENCKHAHN, D ;

ENGEL, K ;

HOFER, D ;

MERTE, C ;

TILNEY, L ;

TILNEY, M .

JOURNAL OF CELL BIOLOGY, 1991, 112 (04) :641-651

[9] SLOW DEPOLARIZING RESPONSE FROM SUPPORTING CELLS IN THE GOLDFISH SACCULE [J].

FURUKAWA, T .

JOURNAL OF PHYSIOLOGY-LONDON, 1985, 366 (SEP) :107-117

[10] INTRACELLULAR AND EXTRACELLULAR RESPONSES IN THE ORGAN OF CORTI OF THE GERBIL [J].

GOODMAN, DA ;

SMITH, RL ;

CHAMBERLAIN, SC .

HEARING RESEARCH, 1982, 7 (02) :161-179

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