CD317 mediates immunocytolysis resistance by RICH2/cytoskeleton-dependent membrane protection

2021 ◽  
Vol 129 ◽  
pp. 94-102
Author(s):  
Jian Cheng ◽  
Zhao Liu ◽  
Tian Deng ◽  
Zhen Lu ◽  
Maoxuan Liu ◽  
...  
Keyword(s):  
Life Sciences ◽  
1989 ◽  
Vol 45 (3) ◽  
pp. 217-222 ◽  
Author(s):  
Hirosumi Sakai ◽  
Minoru Yoshiyama ◽  
Masakazu Teragaki ◽  
Kazuhide Takeuchi ◽  
Tadanao Takeda ◽  
...  

1987 ◽  
Vol 7 (2) ◽  
pp. 81-91 ◽  
Author(s):  
C. A. Pasternak

This review focusses on two questions: (1) How can the intracellular toxicity of ions such as Ca2+ or Zn2+ be reconciled with their extracellular benefit? (2) Why is the dietary requirement for Zn2+ so high when its documented biological role is that of a tightly-bound prosthetic group of certain enzymes? An answer to both questions is provided by the observation that extracellular cations such as Ca2+ and Zn2+ protect the plasma membrane of cells against non-specific leakage, including an influx of Ca2+ or Zn2+. It is suggested that such protection, against leakage induced by microbial and other toxins, may contribute to the high dietary requirement for zinc. These arguments lead to the proposal that a previously unrecognized form of host defence is one of protection of the cell plasma membrane by divalent cations against damage induced by cytotoxic agents of environmental origin.


2019 ◽  
Vol 19 (1) ◽  
pp. 77-84
Author(s):  
Pajri Anwar ◽  
Jiyanto Jiyanto

ABSTRAK. Penelitian ini bertujuan untuk mengetahui efektivitas kinerja sukrosa dalam Tris kuning telur sebagai krioprotektan untuk perlindungan aktif ekstraseluler membran plasma utuh spermatozoa sapi Bali. Bahan yang digunakan dalam penelitian ini adalah sperma sapi Bali terpilih dan bahan pengencer semen. Penelitian menggunakan rancangan acak lengkap (RAL) yang terdiri dari 5 perlakuan dan 4 ulangan. Perlakuan A (Kontrol) = Tris 80%+20% Kuning telur + Gliserol; Perlakuan B = 0,2% Sukrosa + Tris 80%+20% Kuning telur + Gliserol; Perlakuan C = 0,3% Sukrosa + Tris 80%+20% Kuning telur + Gliserol; Perlakuan D = 0,4% Sukrosa + Tris 80%+20% Kuning telur + Gliserol; Perlakuan E = 0,5% Sukrosa + Tris 80%+20% Kuning telur + Griserol. Parameter yang diamati dalam penelitian ini adalah pergerakan progresif aktif spermatozoa dan membran Plasma Utuh (MPU) pada tahap pre-feezing semen sapi Bali. Hasil penelitian menunjukkan bahwa tingkat konsentrasi sukrosa pada tahap pre-freezing tidak berpengaruh nyata (P 0,05%) terhadap persentase progresif aktif spermatozoa dan proteksi MPU semen Sapi Bali dan tingkat aktif progresif spermatozoa dengan penambahan sukrosa dalam kuning telur dikategorikan baik (66.75- 69.00%). Penambahan berbagai level  konsentrasi sukrosa sebagai krioprotektan ekstraseluler melapisi dan mengikat membran spermatozoa dari efek perubahan suhu yang drastis pada tahap pre-freezing dalam proses semen beku. The effectiveness of sucrose as the Active Protection of Bali Spermatozoa Extracellular Membranes Pre-Freezing ABSTRACT. This study aimed to determine the effectiveness of the performance of sucrose in tris egg yolk as a cryoprotectant for extracellular active protection of extracellular membrane of Bali bulls spermatozoa. The material used in this study is the sperm of selected Bali bulls and spermatozoa thinning agent. This study used an experimental method with a completely randomized design (CRD) consisting of 5 treatments and 4 replications. Treatment A (Control) = Tris 80% + 20% Egg Yolk + Glycerol; Treatment B = 0.2% Sucrose + Tris 80% + 20% Egg yolk + Glycerol; Treatment C = 0.3% Sucrose + Tris 80% + 20% Egg yolk + Glycerol; Treatment D = 0.4% Sucrose + Tris 80% + 20% Egg yolk + Glycerol; and Treatment E = 0.5% Sucrose + Tris 80% + 20% Egg Yolk + Griserol. The parameters observed in this study were the active progressive movement and extracellular membrane of spermatozoa protection in Bali bulls pre-freezing stage. The results showed that the sucrose tris egg yolk concentration level at the pre freezing stage no significant effect (P 0.05%) on the active progressive percentage of spermatozoa and bali bulls extracellular membrane protection conditions active levels of progressive spermatozoa with the addition of sucrose in egg yolk are categorized as good (66.75- 69.00%). Addition of various levels of sucrose concentration as extracellular cryoprotectant coating and binding of spermatozoa membranes from the effects of drastic temperature changes in the pre-freezing stage in the process of frozen sperm.


2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Qinqin Fei ◽  
David Kent ◽  
Wesley M. Botello-Smith ◽  
Fariah Nur ◽  
Saadia Nur ◽  
...  

2021 ◽  
Vol 11 (03) ◽  
pp. 169-185
Author(s):  
Daniela Rodrigues Silva ◽  
Maidileyvis Castro Cabello ◽  
Divinomar Severino ◽  
Mauricio S. Baptista

2017 ◽  
Vol 2017 (12) ◽  
pp. 2356-2367 ◽  
Author(s):  
Zipora Tal ◽  
Peachie Maher Hytowitz ◽  
Adva Zach Maor ◽  
Eatay Pomeranz ◽  
Erika Ben-Basat

2011 ◽  
Vol 3 (24) ◽  
pp. 67-71 ◽  
Author(s):  
A.K. Maji ◽  
S. Bhadra ◽  
S. Mahapatra ◽  
P. Banerji ◽  
D. Banerjee

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