Journal: Nucleic Acids Research
Article Title: Fam170a deficiency causes male infertility by impairing histone-to-protamine exchange during mouse spermiogenesis
doi: 10.1093/nar/gkaf023
Figure Lengend Snippet: Fam170a is located in the nucleus of spermatids at steps 9–13 and has a low level of mRNA in human sperm from individuals with teratozoospermia. ( A , B ) Immunofluorescence staining displayed the localization and distribution of Fam170a protein in mouse and human seminiferous tubules, respectively. Roman numerals indicate the spermatogenic stages of the tubules in WT testicular sections. S: spermatid. The specific stages of mouse tubules were determined according to published criteria [ , ]. ( C ) Schematic summary of Fam170a protein localization during spermiogenesis. ( D ) Three different microarrays captured Fam170a gene transcription levels in sperm samples from normal and teratozoospermia men. The original data source is marked at the top of the histogram. GDS2695 ( https://www.ncbi.nlm.nih.gov/geoprofiles/?term=GDS2695±FAM170A ), GDS2696 ( https://www.ncbi.nlm.nih.gov/geoprofiles/?term=GDS2696+FAM170A ), and GDS2697 ( https://www.ncbi.nlm.nih.gov/geoprofiles/?term=GDS2697+FAM170A ); ** P < .01, * P < .005. The data are displayed as mean ± SEM. A t -test was performed, and false discovery rate (FDR) P -values were shown. ( E ) The relative Fam170a mRNA abundance in sperm samples from normal ( n = 4) and teratozoospermia ( n = 3) men after qRT-PCR analysis. The control data are displayed as mean ± SEM.
Article Snippet: Similarly, the data from the Illumina Sentrix Expression (HumanRef-8) microbead microarray (five normal and eight teratozoospermia samples, GDS2696) and Affymetrix U133 plus2 microarray (13 normal and 8 teratozoospermia samples, GDS2697) revealed significantly decreased Fam170a mRNA abundance in the teratozoospermia samples (Fig. ; P < .05, P < .01).
Techniques: Immunofluorescence, Staining, Quantitative RT-PCR, Control